A rotary flow control apparatus may comprise a rotary drive mechanism coupled to a ball controller comprising a ball disposed within a cavity. The apparatus may be disposed within a tubing string in a wellbore. Fluid flow is provided though the tubing, causing the rotation of the rotary drive mechanism. The flow passes through a ball cage above a seat disc that incorporates a flow port. The ball orbits around the cavity in response to the motion of an axially extending surface or “kicker.” When the ball obstructs the flow port, it substantially blocks the flow of fluid through the assembly, generating a water hammer impulse in the tubing above the rotary drive mechanism. The rotating kicker moves the ball off the flow port at one angular position and then allows the ball to reseat at a second angular position.
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
F01L 7/10 - Rotary or oscillatory slide-valve gear or valve arrangements with valves of other specific shape, e.g. spherical
F16K 31/16 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member
E21B 47/18 - 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 through the well fluid
A fluidic oscillator includes a vortex chamber in fluid communication with a flow volume, an outlet, a first control port, and a second control port. The flow volume is defined by a first wall and a second wall. The first wall and the second wall are arranged to direct a fluid flow to create a vortex flow in the vortex chamber. The pressure differential cycles the attachment of fluid flow between the first wall and the second wall at a cycle rate. Because the fluidic oscillator can operate at a low cycle rate, the fluidic oscillator can provide an extended reach.
E21B 28/00 - Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
E21B 7/24 - Drilling using vibrating or oscillating means, e.g. out-of-balance masses
E21B 34/08 - Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
E21B 47/18 - 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 through the well fluid
F15C 1/16 - Vortex devices, i.e. devices in which use is made of the pressure drop associated with vortex motion in a fluid
A fluidic oscillator includes a vortex charnber in fluid cornrnunication with a flow volume, an outlet, a first control port, and a second control port. The flow volume is defined by a first wall and a second wall. The first wall and the second wall are arranged to direct a fluid flow to create a vortex flow in the vortex chamber. The pressure differential cycles the attachment of fluid flow between the first wall and the second wall at a cycle rate. Because the fluidic oscillator can operate at a low cycle rate, the fluidic oscillator can provide an extended reach.
E21B 7/24 - Drilling using vibrating or oscillating means, e.g. out-of-balance masses
E21B 28/00 - Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
E21B 34/08 - Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
E21B 47/18 - 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 through the well fluid
F15C 1/16 - Vortex devices, i.e. devices in which use is made of the pressure drop associated with vortex motion in a fluid
4.
HYDRAULIC PULSE VALVE WITH IMPROVED WEAR LIFE AND PERFORMANCE
Hydraulic pulses are produced each time that a pulse valve interrupts the flow of a pressurized fluid through a conduit. The pulse valve includes an elongate housing having an inlet configured to couple to the conduit to receive the pressurized fluid, and an outlet configured to couple to one or more tools. In the housing, a valve assembly includes a poppet reciprocating between open and closed positions, and a poppet seat, in which the poppet closes to partially block the flow of pressurized fluid through the valve. A bypass passage is configured to connect with a valve actuation vent port such that when the poppet closes the valve actuation pressure is less than the difference between the pressure up stream of the pulse valve and a pilot within the poppet moves between disparate positions to modify fluid paths within the valve. When the valve is open, a relatively lower pressure is produced by a Venturi effect as the fluid flows through a throat in the poppet seat, to provide a differential pressure used to move the pilot and poppet.
E21B 7/18 - Drilling by liquid or gas jets, with or without entrained pellets
E21B 21/10 - Valves arrangements in drilling-fluid circulation systems
E21B 47/18 - 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 through the well fluid
F16K 31/12 - Operating meansReleasing devices actuated by fluid
5.
FREQUENCY MODULATED MUD PULSE TELEMETRY APPARATUS AND METHOD
An apparatus and method to improve transmission of mud pulse telemetry signals is described. A mud pulser is placed in series with a water hammer pulse valve. While generating pulse signals, the mud pulser modulates the flow of mud downstream to the pulse valve. The pulse valve, which cycles at a frequency that is proportional to the flow rate through the tool, operates at a frequency that is effectively modulated by the mud pulser. A sensor that may be at the surface receives a mud pulse signal that comprises both an amplitude modulated component as well as a frequency modulated component.
E21B 47/18 - 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 through the well fluid
A compact reaction turbine jet rotor with much lower rotary speed, reduced manufacturing cost and greater tolerance to debris and wear is disclosed. Reduced rotary speed will allow faster drilling in a wider range of formations of economic interest. A simple brake mechanism will also reduce manufacturing cost.
The present invention discloses an actuation mechanism for a water hammer valve. The water hammer valve is initially prevented from operating, and an actuation mechanism for the water hammer valve is actuated by dropping one or more balls or other objects onto the valve. Once actuated, the pilot and piston mechanism in the water hammer valve operate to produce hydraulic pulses from an upstream pressurized fluid.
Power operated tools used in a wellbore, namely, tools for extending the reach that tubing can be pushed into deviated wellbore, enhancing the delivery of well stimulation fluids, enhancing wellbore cleaning, enhancing the transport of debris out of the wellbore, and freeing stuck equipment in a borehole
A hyper-pressure water cannon, or pulse excavator, is able to discharge fluid pulses at extremely high velocities to fracture a rock face in excavation applications. A compressed water cannon can be used to generate hyper-pressure pulses by discharging the pulse into a straight nozzle section which leads to a convergent tapered nozzle. The hyper-pressure water cannon design is relatively compact, and the pulse generator can readily be maneuvered to cover the face of an excavation as part of a mobile mining system.
E21C 37/12 - Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid
A self-actuated cyclical flow interruption valve on a deployment tool is positioned at a proximal end of a well completion assembly. Fluid is pumped though the self-actuated cyclical flow interruption valve and vented immediately distal of the valve, to return to surface of the well. A water hammer pulse is generated each time the self-actuated cyclical flow interruption valve closes, thereby generating an impact force that acts to push the completion equipment distally into the well. The continuous cyclic force of the impact facilitates placement of the completion equipment where desired in the well, including within a horizontal extension of the well. Fluid discharged through the self-actuated cyclical flow interruption valve circulates up to the surface through a vertical and inclined section of the well.
Hydraulic pulses are produced each time that a pulse valve interrupts the flow of a pressurized fluid through a conduit. The pulse valve includes an elongate housing having an inlet configured to couple to the conduit to receive the pressurized fluid, and an outlet configured to couple to one or more tools. In the housing, a valve assembly includes a poppet reciprocating between open and closed positions, and a poppet seat, in which the poppet closes to at least partially block the flow of pressurized fluid through the valve. A pilot within the poppet moves between disparate positions to modify fluid paths within the valve. When the valve is open, a relatively lower pressure is produced by a Venturi effect as the fluid flows through a throat in the poppet seat, to provide a differential pressure used to move the pilot and poppet. An optional bypass reduces the pulse amplitude.
E21B 21/10 - Valves arrangements in drilling-fluid circulation systems
E21B 28/00 - Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
F16K 3/30 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing Details
F16K 29/00 - Arrangements for movement of valve members other than for opening or closing the valve, e.g. for grinding-in, for preventing sticking
F16K 47/00 - Means in valves for absorbing fluid energy
A gas turbodrill with an adjustable bent housing for use in a spur lateral drilling application. The gas turbodrill includes a high-speed gas turbine, a gearbox assembly, a pivoting shaft connection point, a gimbal assembly comprising a hollow ball and socket joint, a bearing assembly and drill bit assembly. The gas turbodrill gimbal assembly enabling a bend through an angle of up to 5 degrees while drilling. Springs and the application of pressure will lock the bend in place once drilling commences to facilitate lateral drilling of the spur.
A hydraulic pulse valve for use in downhole tools includes a split ring seal to limit the fluid flow available to shift a poppet in the valve from an open position to a closed position. The split ring seal provides relatively long and repeatable pressure pulses, which improve the effectiveness of the hydraulic pulse valve for borehole applications.
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Power operated well drilling and through-tubing well intervention tools used in oil fields, namely, tools for extending the reach that tubing can be pushed into deviated wellbore, fluid motor gas separator tools for removing gas from energized fluid, tools using rotating fluid jets to remove mineral scale in boreholes and to stimulate well completions [ , vibratory jars, turbine drill motors and bits and tools for generating high frequency sounds and accessories for these tools, namely, disconnects, nozzles and annular velocity subs ] Rental of oil field tools, namely, well drilling tools and through-tubing well intervention tools [ Engineering services, namely, engineering for the oil field industry ]
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Power operated well drilling and through-tubing well intervention tools used in oil fields, namely, tools for extending the reach that tubing can be pushed into deviated wellbore, fluid motor gas separator tools for removing gas from energized fluid, tools using rotating fluid jets to remove mineral scale in boreholes and to stimulate well completions [ , vibratory jars, turbine drill motors and bits and tools for generating high frequency sounds and accessories for these tools, namely, disconnects, nozzles and annular velocity subs ] Rental of oil field tools, namely, well drilling tools and through-tubing well intervention tools [ Engineering services, namely, engineering for the oil field industry ]
(1) A power operated tool for extending the reach that tubing can be pushed into deviated wellbores by creating periodic water-hammer pressure pulses inside the tubing and in the wellbore
A power operated tool for extending the reach that tubing can be pushed into deviated wellbores by creating periodic water-hammer pressure pulses inside the tubing and in the wellbore.
A power operated tool for extending the reach that tubing can be pushed into deviated wellbores by creating periodic water-hammer pressure pulses inside the tubing and in the wellbore
A combination liquid and gas separator and jetting tool includes a housing (1) containing a rotatable drum (2), a stator (6) in the inlet end of the housing (1) for swirling a liquid/gas mixture, a rotor (9) attached to the drum (2) for rotation by the mixture; whereby the gas and liquid are separated. The liquid and gas are discharged through separate restricted orifices (28, 32) downstream of the drum. Orifices (44, 59) can be located in a rotating head (43) for cleaning, cutting or other downhole operations.
