Running tool/data capture device (20, 220) is deployed downhole (102) with a drill assembly. Core sample is drilled (104) and drilling ceases (106). Core is broken and a physical factor (second factor) associated with core break is measured/sensed/detected/recorded (108) – signature of core break occurring. The signature (second data) is associated to the orientations during ceased drilling before core break (110). Orientation recordings/first data not commenced by sensing or detecting core break. Orientation recordings occur regardless of drilling or not drilling. Relate signature of core break activity to the first data to identify target data orientation recordings having the correct orientation when the core drill and sample were steady. Tool can receive signal downhole initiated at the surface, the signal associated with at least one function of the data capture device and/or with orientation data recorded by the data capture device.
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
2.
Core Barrel Head Assembly With An Integrated Sample Orientation Tool And System For Using Same
A core barrel head assembly having at least one electronic instrument that is configured to obtain orientation data; a power source; and a communication means to receive and/or transmit orientation data for use in a core sample down hole surveying and sample orientation system that is configured to provide an indication of the orientation of a core sample relative to a body of material from which the core has been extracted, and also to a method of core sample orientation identification.
Rate of penetration (ROP) measurement system (10) has sensor apparatus on a drill rig detecting drilling advancement. Sender (38, 200) transmits to a receiver (40, 204), optionally via a reflector (39, 208). An electronic sub (201) can include the sender (200), receiver (204) or reflector (208). Reflector (39, 208) reflects signals to the receiver (40, 204). Distance measurement or space mapping can use LIDAR/laser and MEMS mirror. Releasable attachment to the drill rig can be by magnet (112). Atmospheric or barometric pressure can be detected and pressure change can be used to determine distance moved. WOB, RPM, torque and time rate of progress can be measured and combined with distance moved measurements to assess wear on a drill bit. Near real time
Rate of penetration (ROP) measurement system (10) has sensor apparatus on a drill rig detecting drilling advancement. Sender (38, 200) transmits to a receiver (40, 204), optionally via a reflector (39, 208). An electronic sub (201) can include the sender (200), receiver (204) or reflector (208). Reflector (39, 208) reflects signals to the receiver (40, 204). Distance measurement or space mapping can use LIDAR/laser and MEMS mirror. Releasable attachment to the drill rig can be by magnet (112). Atmospheric or barometric pressure can be detected and pressure change can be used to determine distance moved. WOB, RPM, torque and time rate of progress can be measured and combined with distance moved measurements to assess wear on a drill bit. Near real time
ROP measurement can be calculated and displayed (17) and/or reported (21). Drilling efficiency and premature drill wear or change in rock can be determined.
E21B 45/00 - Measuring the drilling time or rate of penetration
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
G01C 21/16 - Navigation; Navigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
G01C 25/00 - Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
4.
Tape winch, drilling progress measurement and hole depth measurement
Winch (304) has a load bearing tape (305) to advance into a borehole (307). Hole depth can be determined by subtracting a sensed height (310) above ground surface (311) from total depth (312) measured. Can include a height above ground sensor (314) and a tape distance measurer (316). Depth of water or watery mud or muddy water (320) can be sensed, such as by a pressure sensor (326) on a weight or in a sensor device at or near the tape leading end. A heater (309) can warm the tape. A cover or housing (313) can be provided for the winch or spool. The tape can include wires or fibre optics (336) embedded in or applied to a surface of the tape (305) and/or apertures or embedded or surface applied markers/indicators (338) along a length thereof e.g. for reading by an optical or magnetic sensor.
E21B 45/00 - Measuring the drilling time or rate of penetration
G01B 7/04 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
G01B 7/26 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring depth
G01B 11/04 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
G01C 9/00 - Measuring inclination, e.g. by clinometers, by levels
Rate of penetration (ROP) measurement system (10) has sensor apparatus on a drill rig detecting drilling advancement. Sender (38, 200) transmits to a receiver (40, 204), optionally via a reflector (39, 208). An electronic sub (201) can include the sender (200), receiver (204) or reflector (208). Reflector (39, 208) reflects signals to the receiver (40, 204). Distance measurement or space mapping can use LIDAR/laser and MEMS mirror. Releasable attachment to the drill rig can be by magnet (112). Atmospheric or barometric pressure can be detected and pressure change can be used to determine distance moved. WOB, RPM, torque and time rate of progress can be measured and combined with distance moved measurements to assess wear on a drill bit. Near real time ROP measurement can be calculated and displayed (17) and/or reported (21). Drilling efficiency and premature drill wear or change in rock can be determined.
E21B 21/08 - Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
E21B 45/00 - Measuring the drilling time or rate of penetration
G01C 5/06 - Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels by using barometric means
Rate of penetration (ROP) measurement system (10) has sensor apparatus on a drill rig detecting drilling advancement. Sender (38, 200) transmits to a receiver (40, 204), optionally via a reflector (39, 208). An electronic sub (201) can include the sender (200), receiver (204) or reflector (208). Reflector (39, 208) reflects signals to the receiver (40, 204). Distance measurement or space mapping can use LIDAR/laser and MEMS mirror. Releasable attachment to the drill rig can be by magnet (112). Atmospheric or barometric pressure can be detected and pressure change can be used to determine distance moved. WOB, RPM, torque and time rate of progress can be measured and combined with distance moved measurements to assess wear on a drill bit. Near real time ROP measurement can be calculated and displayed (17) and/or reported (21). Drilling efficiency and premature drill wear or change in rock can be determined.
E21B 45/00 - Measuring the drilling time or rate of penetration
E21B 21/08 - Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
G01C 5/06 - Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels by using barometric means
7.
SYSTEMS AND METHODS FOR MEASURING DEPTH WITHIN A BOREHOLE
Disclosed herein, in one aspect, is a system for determining depth within a borehole. The system can comprise a downhole device comprising at least one inertial sensor, at least one processor, and a memory in communication with the at least one processor. The memory can comprise instructions thereon that, when executed, cause the processor to: receive data from the at least one inertial sensor and store the data from the at least one inertial sensor in the memory with respective correlated time values. The system can further comprise a drill rig comprising at least one depth measurement device. The at least one depth measurement device can comprises a drill string position sensor that is configured to produce a measurement indicative of a length of a portion of a drill string removed from a borehole or a wireline sensor that is configured to determine a length of deployed wireline cable.
E21B 47/26 - Storing data down-hole, e.g. in a memory or on a record carrier
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
G01B 21/18 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring depth
G01C 19/00 - Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
8.
MODULAR CONTROL UNIT AND SYSTEMS COMPRISING THE SAME
A control unit can comprise a housing and circuitry disposed within the housing. The circuitry can comprise a communications module, a memory, and a processor in communication with the memory and the communications module. A power source can be disposed within the housing. An input port that is configured to mate with a complementary output of a sensor unit that is external to the housing. The input port can be in communication with the circuitry. The input port can be configured to interface with the sensor unit.
Disclosed herein, in one aspect, is a system for determining depth within a borehole. The system can comprise a downhole device comprising at least one inertial sensor, at least one processor, and a memory in communication with the at least one processor. The memory can comprise instructions thereon that, when executed, cause the processor to: receive data from the at least one inertial sensor and store the data from the at least one inertial sensor in the memory with respective correlated time values. The system can further comprise a drill rig comprising at least one depth measurement device. The at least one depth measurement device can comprises a drill string position sensor that is configured to produce a measurement indicative of a length of a portion of a drill string removed from a borehole or a wireline sensor that is configured to determine a length of deployed wireline cable.
G01B 21/18 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring depth
G01C 19/00 - Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
E21B 47/26 - Storing data down-hole, e.g. in a memory or on a record carrier
10.
Devices, systems, and methods for downhole event detection and depth determination
Detector device (10) mounts to a drilling rig (12) to sense sound or vibration signalled from downhole. The device (10) has a transmitter (10,20) to transmit data and/or an alert relating to sensed sound and/or vibration associated with deployment and/or positioning of a tool downhole. The device (10) recognises that one or more predetermined events or a pattern of events or one or more particular sound and/or vibration signatures occur(s). Downhole device (36) has a transmitter (38) transmitting a signal indicating a sensed pressure, position or motion change downhole. Communication between the downhole device and the device at the surface to determine depth or distance e.g. time of flight of a signal emitted by one device and the return signal from the other device or from the send and received times of the signal between the two devices based on their respective timers.
E21B 41/00 - Equipment or details not covered by groups
E21B 47/14 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
Apparatus (10) houses an instrumented device (13) and an inner tube (14) providing a fluid flow path therethrough. A strain gauge (48) is on the outer surface of the inner tube. Bulkhead(s) transfers forces from an external housing to the inner tube to be detected by the strain gauge. Flow sensors (50) measure fluid flow velocity and/or fluid flow volume rate. Pressure sensors (52) sense pressure differential between an inlet side and an outlet side of the apparatus. Sensors provide for measurement of RPM, WOB, azimuth and rate of penetration. Communication means (18) (such as a Wi Fi transceiver) and/or GPS device (20) can communicate through EM transparent windows (30, 32). The apparatus is used aboveground axially in-line in a drill string.
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
12.
MEASURING DRILLING PARAMETERS OF A DRILLING OPERATION
Apparatus (10) houses an instrumented device (13) and an inner tube (14) providing a fluid flow path therethrough. A strain gauge (48) is on the outer surface of the inner tube. Bulkhead(s) transfers forces from an external housing to the inner tube to be detected by the strain gauge. Flow sensors (50) measure fluid flow velocity and/or fluid flow volume rate. Pressure sensors (52) sense pressure differential between an inlet side and an outlet side of the apparatus. Sensors provide for measurement of RPM, WOB, azimuth and rate of penetration. Communication means (18) (such as a Wi Fi transceiver) and/or GPS device (20) can communicate through EM transparent windows (30, 32). The apparatus is used aboveground axially in-line in a drill string.
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
A drilling system can comprise a drill string having a longitudinal axis and comprising at least one drill rod and a wireless sub coupled to the at least one drill rod. The wireless sub can comprise processing circuitry that is configured to detect mechanical impulses of the drill string. The processing circuitry can be configured to wirelessly transmit signals indicative of the mechanical impulses to a remote computing device.
E21B 47/14 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
14.
DEVICES, SYSTEMS, AND METHODS FOR WIRELESS DATA ACQUISITION DURING DRILLING OPERATIONS
A drilling system can comprise a drill string having a longitudinal axis and comprising at least one drill rod and a wireless sub coupled to the at least one drill rod. The wireless sub can comprise processing circuitry that is configured to detect mechanical impulses of the drill string. The processing circuitry can be configured to wirelessly transmit signals indicative of the mechanical impulses to a remote computing device.
E21B 47/14 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
15.
TAPE WINCH, DRILLING PROGRESS MEASUREMENT AND HOLE DEPTH MEASUREMENT
Winch (304) has a load bearing tape (305) to advance into a borehole (307). Hole depth can be determined by subtracting a sensed height (310) above ground surface (311) from total depth (312) measured. Can include a height above ground sensor (314) and a tape distance measurer (316). Depth of water or watery mud or muddy water (320) can be sensed, such as by a pressure sensor (326) on a weight or in a sensor device at or near the tape leading end. A heater (309) can warm the tape. A cover or housing (313) can be provided for the winch or spool. The tape can include wires or fibre optics (336) embedded in or applied to a surface of the tape (305) and/or apertures or embedded or surface applied markers/indicators (338) along a length thereof e.g. for reading by an optical or magnetic sensor.
G01B 7/04 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
Winch (304) has a load bearing tape (305) to advance into a borehole (307). Hole depth can be determined by subtracting a sensed height (310) above ground surface (311) from total depth (312) measured. Can include a height above ground sensor (314) and a tape distance measurer (316). Depth of water or watery mud or muddy water (320) can be sensed, such as by a pressure sensor (326) on a weight or in a sensor device at or near the tape leading end. A heater (309) can warm the tape. A cover or housing (313) can be provided for the winch or spool. The tape can include wires or fibre optics (336) embedded in or applied to a surface of the tape (305) and/or apertures or embedded or surface applied markers/indicators (338) along a length thereof e.g. for reading by an optical or magnetic sensor.
G01B 7/04 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
G01B 7/02 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness
Detector device (10) mounts to a drilling rig (12) to sense sound or vibration signalled from downhole. The device (10) has a transmitter (10.20) to transmit data and/or an alert relating to sensed sound and/or vibration associated with deployment and/or positioning of a tool downhole. The device (10) recognises that one or more predetermined events or a pattern of events or one or more particular sound and/or vibration signatures occur(s). Downhole device (36) has a transmitter (38) transmitting a signal indicating a sensed pressure, position or motion change downhole. Communication between the downhole device and the device at the surface to determine depth or distance e.g. time of flight of a signal emitted by one device and the return signal from the other device or from the send and received times of the signal between the two devices based on their respective timers.
E21B 41/00 - Equipment or details not covered by groups
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
18.
DEVICES, SYSTEMS AND METHODS FOR DOWNHOLE EVENT DETECTION AND DEPTH DETERMINATION
Detector device (10) mounts to a drilling rig (12) to sense sound or vibration signalled from downhole. The device (10) has a transmitter (10.20) to transmit data and/or an alert relating to sensed sound and/or vibration associated with deployment and/or positioning of a tool downhole. The device (10) recognises that one or more predetermined events or a pattern of events or one or more particular sound and/or vibration signatures occur(s). Downhole device (36) has a transmitter (38) transmitting a signal indicating a sensed pressure, position or motion change downhole. Communication between the downhole device and the device at the surface to determine depth or distance e.g. time of flight of a signal emitted by one device and the return signal from the other device or from the send and received times of the signal between the two devices based on their respective timers.
E21B 41/00 - Equipment or details not covered by groups
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
19.
Downhole surveying and core sample orientation systems, devices and methods
A method and system for obtaining orientation of a core sample core drilled from underlying rock. A core orientation recording device (116) records its orientation at random and/or non-predetermined time intervals from a reference time during a drilling operation. The time intervals are generated to be within a range of minimum and maximum time intervals. After a time interval elapsed from the reference time plus a wait time of at least the minimum random or non-predetermined time interval, the core sample is separated from the underlying rock and brought to the surface and its original orientation is determined from orientation data recorded closest in time to the elapsed time plus the minimum time interval. A remote communicator (160) having the elapsed time interrogates the core orientation recordal device (116) to identify the required orientation data and requires the core orientation recordal device to identify a correct orientation of the core sample.
E21B 25/16 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors for obtaining oriented cores
E21B 25/02 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
E21B 31/18 - Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
20.
Downhole surveying and core sample orientation systems, devices and methods
A method and system of validating orientation of a core obtained by drilling the core from a subsurface body of material, the method including: a) determining that vibration from drilling is below a nominated level, b) recording data relating to orientation of the core to be retrieved, the data recorded using a downhole core orientation data recording device, c) separating the core from the subsurface body, and d) obtaining from the core orientation data recording device an indication of the orientation of the core based on the recorded data obtained when the vibration from drilling was below the nominated level and before the core was separated from the subsurface body. A method of determining orientation of a core sample obtained by drilling from aboveground into a subsurface body includes recording data relating to a core sample being obtained by the drilling when vibration from drilling is below a threshold; providing an input to a user operated communication device; the communication device identifying a time of the user input to the communication device; retrieving the data gathering device and core sample; communicating between the communication device and the retrieved data gathering device; determining from indications provided by the retrieved data gathering device an orientation of the core sample.
E21B 25/16 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors for obtaining oriented cores
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
A downhole sensing device deployment control apparatus (10) includes means to control speed of the sensing device progressing within a borehole associated with a drilling operation. A mechanical, electrically powered and/or hydro-dynamic drag/damping means/device (12) can be provided as part of the control apparatus to control speed of deployment down the borehole. The drag device (12) can have a plurality of wheels or rollers to contact an internal bore of an inner pipe of a drill string. Rotation control means (24), (26) can be provided to control an amount of rotation and/or direction of rotation of the wheels or rollers relative to travel of the sensing device within the borehole. Valving (60) can be provided. A two stage (dual) flow/pressure control valve (100) can be provided. A sensing device (release 216) and downhole position latch (202) can be provided. The sensing device can be pumped into the borehole, such as by compressed air.
E21B 23/08 - Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
E21B 21/10 - Valves arrangements in drilling-fluid circulation systems
E21B 47/024 - Determining slope or direction of devices in the borehole
E21B 23/02 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
E21B 23/01 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
A system and method for determining a depth in a drill hole associated with a drilling operation include means and steps for: determining a value for at least one constant parameter and/or a value for at least one variable parameter of a drill rig and/or the drill hole of the associated drilling operation, and calculating the depth in the drill hole from the at least one value constant parameter and/or variable parameter. The constant parameter(s) and/or the variable parameter(s) can be recorded relating to a specific drill rig and/or drill hole. The constant parameter(s) can include one or more of chosen constant stick up distance and/or of a bottom hole assembly length. The variable parameter(s) can include one or more of rod length, rod added or removed out of each run, and/or rod stick up. Entered or recorded data can be progressively tracked and a time record for one or more events generated relating to the drilling operation. The system and method can be implemented in a device having a processor, memory and display, such as a handheld (portable) device.
A system and method for determining a depth in a drill hole associated with a drilling operation include means and steps for: determining a value for at least one constant parameter and/or a value for at least one variable parameter of a drill rig and/or the drill hole of the associated drilling operation, and calculating the depth in the drill hole from the at least one value constant parameter and/or variable parameter. The constant parameter(s) and/or the variable parameter(s) can be recorded relating to a specific drill rig and/or drill hole. The constant parameter(s) can include one or more of chosen constant stick up distance and/or of a bottom hole assembly length. The variable parameter(s) can include one or more of rod length, rod added or removed out of each run, and/or rod stick up. Entered or recorded data can be progressively tracked and a time record for one or more events generated relating to the drilling operation. The system and method can be implemented in a device having a processor, memory and display, such as a handheld (portable) device.
System and method for core sample orientating uses an orientation data gathering device recording core sample orientation belowground at irregular time intervals, preferably while drilling is ceased and the irregular time intervals can be randomly generated by the orientation data gathering device. Target orientation data is closest to time Tx, Tx being greater than, less than or equal to T−t, where T is the time recorded by the data gathering device and t is the recorded elapsed time commenced by a communication device at the surface. The data gathering device is interrogated at the surface by the communication device. Timers in each are stopped or their individual times associated with each other (survey time T and elapsed time t). Target recorded orientation data Tx is identifiable as the largest Tx value
E21B 25/16 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors for obtaining oriented cores
E21B 49/02 - Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
25.
DOWNHOLE SURVEYING AND CORE SAMPLE ORIENTATION SYSTEMS, DEVICES AND METHODS
A method and system for obtaining orientation of a core sample core drilled from underlying rock. A core orientation recording device (116) records its orientation at random and/or non-predetermined time intervals from a reference time during a drilling operation. The time intervals are generated to be within a range of minimum and maximum time intervals. After a time interval elapsed from the reference time plus a wait time of at least the minimum random or non- predetermined time interval, the core sample is separated from the underlying rock and brought to the surface and its original orientation is determined from orientation data recorded closest in time to the elapsed time plus the minimum time interval. A remote communicator (160) having the elapsed time interrogates the core orientation recordal device (116) to identify the required orientation data and requires the core orientation recordal device to identify a correct orientation of the core sample.
A method and system for obtaining orientation of a core sample core drilled from underlying rock. A core orientation recording device (116) records its orientation at random and/or non-predetermined time intervals from a reference time during a drilling operation. The time intervals are generated to be within a range of minimum and maximum time intervals. After a time interval elapsed from the reference time plus a wait time of at least the minimum random or non- predetermined time interval, the core sample is separated from the underlying rock and brought to the surface and its original orientation is determined from orientation data recorded closest in time to the elapsed time plus the minimum time interval. A remote communicator (160) having the elapsed time interrogates the core orientation recordal device (116) to identify the required orientation data and requires the core orientation recordal device to identify a correct orientation of the core sample.
A downhole sensing device deployment control apparatus (10) includes means to control speed of the sensing device progressing within a borehole associated with a drilling operation. A mechanical, electrically powered and/or hydro-dynamic drag/damping means/device (12) can be provided as part of the control apparatus to control speed of deployment down the borehole. The drag device (12) can have a plurality of wheels or rollers to contact an internal bore of an inner pipe of a drill string. Rotation control means (24), (26) can be provided to control an amount of rotation and/or direction of rotation of the wheels or rollers relative to travel of the sensing device within the borehole. Valving (60) can be provided. A two stage (dual) flow/pressure control valve (100) can be provided. A sensing device (release 216) and downhole position latch (202) can be provided. The sensing device can be pumped into the borehole, such as by compressed air.
E21B 49/00 - Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
E21B 21/08 - Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
G01V 3/18 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
E21B 7/00 - Special methods or apparatus for drilling
A downhole sensing device deployment control apparatus (10) includes means to control speed of the sensing device progressing within a borehole associated with a drilling operation. A mechanical, electrically powered and/or hydro-dynamic drag/damping means/device (12) can be provided as part of the control apparatus to control speed of deployment down the borehole. The drag device (12) can have a plurality of wheels or rollers to contact an internal bore of an inner pipe of a drill string. Rotation control means (24), (26) can be provided to control an amount of rotation and/or direction of rotation of the wheels or rollers relative to travel of the sensing device within the borehole. Valving (60) can be provided. A two stage (dual) flow/pressure control valve (100) can be provided. A sensing device (release 216) and downhole position latch (202) can be provided. The sensing device can be pumped into the borehole, such as by compressed air.
E21B 7/00 - Special methods or apparatus for drilling
E21B 21/08 - Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
E21B 49/00 - Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
G01V 3/18 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging
29.
IMPROVEMENTS TO DOWNHOLE SURVEYING AND CORE SAMPLE ORIENTATION SYSTEMS, DEVICES AND METHODS
Orientation data representing a required orientation of a core sample held in a core tube (22, 50) prior to separation of the core sample (24, 52) from the underlying rock can be recorded by a data gathering device (42, 80) at least while drilling is ceased and closest to time Tx, where Tx can be greater than, less than or equal to T-t, where T is the time recorded by the data gathering device (42, 80) and t is the recorded elapsed time commenced and recorded by a communication device (60) at the surface. Elapsed time t commences at the surface when drilling ceases and preferably before the core is to be broken from the underlying rock. For regular time intervals I between orientation data measurements, there can be a time delay W from commencing the elapsed time t. This time delay should be at least as long as (I) a time interval between taking orientation measurements plus the time to actually measure an orientation. After the delay W has elapsed, the core can be broken from the underlying rock. The data gathering device (42, 80) is interrogated at the surface by the communication device (60), and at the same time both timers are stopped or their individual times associated with each other (survey time T and elapsed time t). Target recorded orientation data Tx can be identified as the largest Tx value < T-(t-W) i.e. the oldest Tx in time from commencement of T after taking the mark and before or by the end of the delay W time. Alternatively, for elapsed time t commenced at the end of the delay period W from taking the mark, the recorded orientation data can be identified as the smallest Tx value > T-(t+W) or the largest Tx value < T-t.
Orientation data representing a required orientation of a core sample held in a core tube (22, 50) prior to separation of the core sample (24, 52) from the underlying rock can be recorded by a data gathering device (42, 80) at least while drilling is ceased and closest to time Tx, where Tx can be greater than, less than or equal to T-t, where T is the time recorded by the data gathering device (42, 80) and t is the recorded elapsed time commenced and recorded by a communication device (60) at the surface. Elapsed time t commences at the surface when drilling ceases and preferably before the core is to be broken from the underlying rock. For regular time intervals I between orientation data measurements, there can be a time delay W from commencing the elapsed time t. This time delay should be at least as long as (I) a time interval between taking orientation measurements plus the time to actually measure an orientation. After the delay W has elapsed, the core can be broken from the underlying rock. The data gathering device (42, 80) is interrogated at the surface by the communication device (60), and at the same time both timers are stopped or their individual times associated with each other (survey time T and elapsed time t). Target recorded orientation data Tx can be identified as the largest Tx value < T-(t-W) i.e. the oldest Tx in time from commencement of T after taking the mark and before or by the end of the delay W time. Alternatively, for elapsed time t commenced at the end of the delay period W from taking the mark, the recorded orientation data can be identified as the smallest Tx value > T-(t+W) or the largest Tx value < T-t.
There is disclosed an apparatus for measuring drilling parameters of a down- the- hole drilling operation for mineral exploration using a module mounted in-line to form part of a drill string, and configured to transfer compressive forces through the drill string to a drill bit for drilling. The module has sensors for sensing conditions, including strain measurement sensors bonded to a carrier attached to an annular support and the carrier is bonded to an inner wall of an outer pipe of the module to directly sense strain in the drill string. There is disclosed a second module can also be mounted in-line with the same drill string but away from the first module to measures the same drilling parameters as the first module to enable comparison of the drilling parameters at different positions along the drill bit. The apparatus can be advantageous for monitoring performance of drilling operations.
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
Apparatus (100) for measuring drilling parameters of a down-the-hole drilling operation for mineral exploration includes a module 10.1 mounted in-line with a drill string (110) and proximate to a drill bit (120). The drill string (110) is rotated and progressed down the hole. The module (10) has sensors for sensing conditions. The apparatus (100) measures drilling parameters based on the sensed conditions. The measured data is logged in the module (10) and then transmitted to a computer for a drilling operator's use. The drilling operator monitors progress and optimises performance of the drilling operation based on the measured data. Measurement of drilling parameters based on sensed data proximate to the drill bit enables accurate determination of actual WOB, torque and RPM fluctuations, axial vibration, radial vibration, temperature, RPM. A second module 10.2 is mounted in-line with the same drill string (110) but away from the drill bit (120). The second module 10.2 measures the same drilling parameters as the module 10.1 proximate to the drill bit (120). The driller is provided with the data recorded by the second module 10.2 to judge the performance of the drilling operation. Comparing drilling parameters based on sensed data proximate to the drill bit and distal to the drill bit enables accurate determination of vertical drag/resistance of the drill string (110) within the hole, rotational resistance of the drill string (110), degree of wind-up of the drill string (110) and presence of stick-slip conditions at lower end of the drill string (110).
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
A core barrel head assembly having at least one electronic instrument that is configured to obtain orientation data; a power source; and a communication means to receive and/or transmit orientation data for use in a core sample down hole surveying and sample orientation system that is configured to provide an indication of the orientation of a core sample relative to a body of material from which the core has been extracted, and also to a method of core sample orientation identification.
E21B 49/02 - Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
34.
CORE BARREL HEAD ASSEMBLY WITH AN INTEGRATEDSAMPLE ORIENTATION TOOL AND SYSTEM FOR USING SAME
A core barrel head assembly having at least one electronic instrument that is configured to obtain orientation data; a power source; and a communication means to receive and/or transmit orientation data for use in a core sample down hole surveying and sample orientation system that is configured to provide an indication of the orientation of a core sample relative to a body of material from which the core has been extracted, and also to a method of core sample orientation identification.
A core barrel head assembly having at least one electronic instrument that is configured to obtain orientation data; a power source; and a communication means to receive and/or transmit orientation data for use in a core sample down hole surveying and sample orientation system that is configured to provide an indication of the orientation of a core sample relative to a body of material from which the core has been extracted, and also to a method of core sample orientation identification.
E21B 49/02 - Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
36.
Downhole surveying and core sample orientation systems, devices and methods
A method and system of validating orientation of a core obtained by drilling the core from a subsurface body of material, the method including: a) determining that vibration from drilling is below a nominated level, b) recording data relating to orientation of the core to be retrieved, the data recorded using a downhole core orientation data recording device, c) separating the core from the subsurface body, and d) obtaining from the core orientation data recording device an indication of the orientation of the core based on the recorded data obtained when the vibration from drilling was below the nominated level and before the core was separated from the subsurface body. A method of determining orientation of a core sample obtained by drilling from aboveground into a subsurface body includes recording data relating to a core sample being obtained by the drilling when vibration from drilling is below a threshold; providing an input to a user operated communication device; the communication device identifying a time of the user input to the communication device; retrieving the data gathering device and core sample; communicating between the communication device and the retrieved data gathering device; determining from indications provided by the retrieved data gathering device an orientation of the core sample.
E21B 25/16 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors for obtaining oriented cores
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
A drillstring first tube portion (10) for connection to further tube portions (24,26) of a drillstring via respective connection means has a side wall (16) including non ferromagnetic material, and at least one downhole survey device (12) mounted directly or indirectly on or within the side wall. The survey device has at least one survey instrument to obtain survey data, a power source (22) and wireless communication means (18) to wirelessly receive and/or transmit survey data within or on the side wall. A method of conducting a downhole survey of drilling using such an apparatus is also disclosed, as well as a method of obtaining data gathered downhole. The survey device and a core orientation device (32) may communicate wirelessly, such as when passing each other.
G01V 3/00 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
E21B 47/09 - Locating or determining the position of objects in boreholes or wells; Identifying the free or blocked portions of pipes
G01V 3/26 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
38.
Equipment and methods for downhole surveying and data acquisition for a drilling operation
An adaptor (64,66) has attachment means to releasably attach a core orientation instrument (60) or survey probe to a drill string component and/or drill string, preferably by one or more screw threads (70, 72, 76, 78), retaining screws, bolts, clips or pins or welding/soldering. Anti release means, such as a circlip, can be used to prevent release of the adaptor. A survey system for obtaining data from a drilling operation includes a core orientation instrument, a downhole survey probe and a common single remote controller/data logger configured to control or communicate with both the survey probe and the core orientation instrument. Further, a survey system includes multiple components arranged in a portable container for transport and deployment at a drilling site include a survey probe, a core orientation instrument and a single controller configured to control or communicate with the survey probe and core orientation instrument.
G01V 3/00 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
E21B 25/16 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors for obtaining oriented cores
E21B 47/024 - Determining slope or direction of devices in the borehole
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
An optical device (32) transfers an optical signal to or from an electronics unit (30) used in relation to downhole equipment of a drilling operation. The device includes a body (38) and an optical signal direction or light path altering means (40), the body having a light path arranged to allow the optical signal from a light source (16,18) associated with the electronics unit to pass to the optical signal direction altering means, the optical signal direction altering means arranged to cause the optical signal to change direction of travel within the body of the optical device.
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
G02B 6/42 - Coupling light guides with opto-electronic elements
H04B 10/00 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
H04B 13/00 - Transmission systems characterised by the medium used for transmission, not provided for in groups
A drillstring first tube portion (10) for connection to further tube portions (24,26) of a drillstring via respective connection means has a side wall (16) including non ferromagnetic material, and at least one downhole survey device (12) mounted directly or indirectly on or within the side wall. The survey device has at least one survey instrument to obtain survey data, a power source (22) and wireless communication means (18) to wirelessly receive and/or transmit survey data within or on the side wall. A method of conducting a downhole survey of drilling using such an apparatus is also disclosed, as well as a method of obtaining data gathered downhole. The survey device and a core orientation device (32) may communicate wirelessly, such as when passing each other.
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
G01V 3/26 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
E21B 47/0228 - Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor
A drillstring first tube portion (10) for connection to further tube portions (24,26) of a drillstring via respective connection means has a side wall (16) including non ferromagnetic material, and at least one downhole survey device (12) mounted directly or indirectly on or within the side wall. The survey device has at least one survey instrument to obtain survey data, a power source (22) and wireless communication means (18) to wirelessly receive and/or transmit survey data within or on the side wall. A method of conducting a downhole survey of drilling using such an apparatus is also disclosed, as well as a method of obtaining data gathered downhole. The survey device and a core orientation device (32) may communicate wirelessly, such as when passing each other.
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
E21B 47/0228 - Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor
G01V 3/26 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
42.
IMPROVEMENTS TO DOWNHOLE SURVEYING AND CORE SAMPLE ORIENTATION SYSTEMS, DEVICES AND METHODS
A method and system of validating orientation of a core obtained by drilling the core from a subsurface body of material, the method including: a) determining that vibration from drilling is below a nominated level, b) recording data relating to orientation of the core to be retrieved, the data recorded using a downhole core orientation data recording device, c) separating the core from the subsurface body, and d) obtaining from the core orientation data recording device an indication of the orientation of the core based on the recorded data obtained when the vibration from drilling was below the nominated level and before the core was separated from the subsurface body. A method of determining orientation of a core sample obtained by drilling from aboveground into a subsurface body includes recording data relating to a core sample being obtained by the drilling when vibration from drilling is below a threshold; providing an input to a user operated communication device; the communication device identifying a time of the user input to the communication device; retrieving the data gathering device and core sample; communicating between the communication device and the retrieved data gathering device; determining from indications provided by the retrieved data gathering device an orientation of the core sample.
A method and system of validating orientation of a core obtained by drilling the core from a subsurface body of material, the method including: a) determining that vibration from drilling is below a nominated level, b) recording data relating to orientation of the core to be retrieved, the data recorded using a downhole core orientation data recording device, c) separating the core from the subsurface body, and d) obtaining from the core orientation data recording device an indication of the orientation of the core based on the recorded data obtained when the vibration from drilling was below the nominated level and before the core was separated from the subsurface body. A method of determining orientation of a core sample obtained by drilling from aboveground into a subsurface body includes recording data relating to a core sample being obtained by the drilling when vibration from drilling is below a threshold; providing an input to a user operated communication device; the communication device identifying a time of the user input to the communication device; retrieving the data gathering device and core sample; communicating between the communication device and the retrieved data gathering device; determining from indications provided by the retrieved data gathering device an orientation of the core sample.
An adaptor (64,66) has attachment means to releasably attach a core orientation instrument (60) or survey probe to a drill string component and/or drill string, preferably by one or more screw threads (70, 72, 76, 78), retaining screws, bolts, clips or pins or welding/soldering. Anti release means, such as a circlip, can be used to prevent release of the adaptor. A survey system for obtaining data from a drilling operation includes a core orientation instrument, a downhole survey probe and a common single remote controller/data logger configured to control or communicate with both the survey probe and the core orientation instrument. Further, a survey system includes multiple components arranged in a portable container for transport and deployment at a drilling site include a survey probe, a core orientation instrument and a single controller configured to control or communicate with the survey probe and core orientation instrument.
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
45.
IMPROVEMENTS TO EQUIPMENT AND METHODS FOR DOWNHOLE SURVEYING AND DATA ACQUISITION FOR A DRILLING OPERATION
A downhole survey system for obtaining data from within a borehole of a drilling operation, the system including at least one core orientation instrument for use in determining orientation of a core sample, the at least one core orientation instrument having an internal communicator. The system further includes at least one downhole survey probe for use in determining downhole characteristics relating to a borehole created during a drilling operation, the at least one downhole survey probe having an internal communicator. The system includes a common controller retained at the surface and configured to control or communicate with the respective internal communicator of the at least one survey probe and the at least one core orientation instrument when the respective at least one survey probe or the at least one core orientation instrument is returned to the surface from the borehole.
E21B 47/026 - Determining slope or direction of penetrated ground layers
E21B 25/16 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors for obtaining oriented cores
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
46.
IMPROVEMENTS TO EQUIPMENT AND METHODS FOR DOWNHOLE SURVEYING AND DATA ACQUISITION FOR A DRILLING OPERATION
An adaptor (64,66) has attachment means to releasably attach a core orientation instrument (60) or survey probe to a drill string component and/or drill string, preferably by one or more screw threads (70, 72, 76, 78), retaining screws, bolts, clips or pins or welding/soldering. Anti release means, such as a circlip, can be used to prevent release of the adaptor. A survey system for obtaining data from a drilling operation includes a core orientation instrument, a downhole survey probe and a common single remote controller/data logger configured to control or communicate with both the survey probe and the core orientation instrument. Further, a survey system includes multiple components arranged in a portable container for transport and deployment at a drilling site include a survey probe, a core orientation instrument and a single controller configured to control or communicate with the survey probe and core orientation instrument.
E21B 25/16 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors for obtaining oriented cores
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
An optical device (32) transfers an optical signal to or from an electronics unit (30) used in relation to downhole equipment of a drilling operation. The device includes a body (38) and an optical signal direction or light path altering means (40), the body having a light path arranged to allow the optical signal from a light source (16,18) associated with the electronics unit to pass to the optical signal direction altering means, the optical signal direction altering means arranged to cause the optical signal to change direction of travel within the body of the optical device.
E21B 47/135 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. of radio frequency range using light waves, e.g. infrared or ultraviolet waves
An optical device (32) transfers an optical signal to or from an electronics unit (30) used in relation to downhole equipment of a drilling operation. The device includes a body (38) and an optical signal direction or light path altering means (40), the body having a light path arranged to allow the optical signal from a light source (16,18) associated with the electronics unit to pass to the optical signal direction altering means, the optical signal direction altering means arranged to cause the optical signal to change direction of travel within the body of the optical device.
E21B 47/113 - Locating fluid leaks, intrusions or movements using light radiation
E21B 47/135 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. of radio frequency range using light waves, e.g. infrared or ultraviolet waves
49.
DEVICE AND METHOD FOR DATA COMMUNICATION THROUGH METAL
A method, device and system to pass signals through a metal substrate includes transmission of at least one ultrasonic signal from a transmitter (20) through a metal substrate (16) from a transmission means (30) attached directly or indirectly to a surface of a first side of the metal substrate, and receiving the signals at a receiver (20) releasably connected to a surface at a second surface or side of the metal substrate. The metal substrate can be part of a metal enclosure (12), such as of a data communication module (10) arranged to be put down a borehole. The device may clamp using jaws (36a,36b) and may include a visual display (36). A remote communicator (39) may communicate with the device, such as via an infra red sensor (38). The device, system and method can be used to communicate data through the metal wall of a downhole information tool, such as a survey or core orientation instrument package.
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
E21B 47/14 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
50.
DEVICE AND METHOD FOR DATA COMMUNICATION THROUGH METAL
A method, device and system to pass signals through a metal substrate includes transmission of at least one ultrasonic signal from a transmitter (20) through a metal substrate (16) from a transmission means (30) attached directly or indirectly to a surface of a first side of the metal substrate, and receiving the signals at a receiver (20) releasably connected to a surface at a second surface or side of the metal substrate. The metal substrate can be part of a metal enclosure (12), such as of a data communication module (10) arranged to be put down a borehole. The device may clamp using jaws (36a,36b) and may include a visual display (36). A remote communicator (39) may communicate with the device, such as via an infra red sensor (38). The device, system and method can be used to communicate data through the metal wall of a downhole information tool, such as a survey or core orientation instrument package.
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
E21B 47/14 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
A core sample orientation system is configured to provide an indication of the orientation of a core sample relative to a body of material from which the core has been recovered. A hermetically sealed core sample orientation data gathering device (42) is deployable as part of a downhole core sample assembly, the device including communication means arranged to communicate obtained core sample orientation data to a remote orientation data indication display device (60) having an orientation data display. The data gathering device can have visual indicators (74, 76), such as LED lights, which may light a reflector (86) to emit the indicating light through one or more apertures (84) in a sidewall of the assembly. Also disclosed is a method of obtaining core sample orientation data includes deploying a core sample orientation data gathering device as part of a core sample gathering system, obtaining a core sample from a subsurface body of material using the orientation data gathering device, using the orientation data gathering device to determine the orientation of the core sample relative to the subsurface body of material, and using a remote communication device to obtain from said orientation data gathering device data relating to the orientation of the core sample.
A core sample orientation system is configured to provide an indication of the orientation of a core sample relative to a body of material from which the core has been recovered. A hermetically sealed core sample orientation data gathering device (42) is deployable as part of a downhole core sample assembly, the device including communication means arranged to communicate obtained core sample orientation data to a remote orientation data indication display device (60) having an orientation data display. The data gathering device can have visual indicators (74, 76), such as LED lights, which may light a reflector (86) to emit the indicating light through one or more apertures (84) in a sidewall of the assembly. Also disclosed is a method of obtaining core sample orientation data includes deploying a core sample orientation data gathering device as part of a core sample gathering system, obtaining a core sample from a subsurface body of material using the orientation data gathering device, using the orientation data gathering device to determine the orientation of the core sample relative to the subsurface body of material, and using a remote communication device to obtain from said orientation data gathering device data relating to the orientation of the core sample.
A drilling log data logger (10), and system incorporating the same, has means (14-40) to receive drilling event related data, electronic storage means to store said input data, and output means (12, 42) to output said data on demand. A related drilling log data recordal method for at least one drilling operation includes entering (100) initial drilling data into a data logger (10), said initial drilling data relating to at least one said drilling operation, creating current progress drilling data (108) in the data logger based on said initial drilling data, entering subsequent drilling data (110) into the data logger relating to one or more of a drilling task, drilling progress, drilling equipment or drilling operators of said drilling operation, comparing the subsequent drilling data (110) with the current progress drilling data (108); and updating the current progress drilling data (108) using the subsequent drilling data (110).
E21B 45/00 - Measuring the drilling time or rate of penetration
G01V 1/40 - Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
patents
