Abstract

An apparatus and method for sensing a rotational parameter of a rotating member of a downhole pumping system. The apparatus is capable of detecting motor rotation and pump operating conditions and includes control systems for methods utilizing the rotational parameters to control the operation of the downhole pumping system.

IPC Classes  ?

• F04D 13/10 - Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
• E21B 47/008 - Monitoring of down-hole pump systems, e.g. for the detection of "pumped-off" conditions
• F04D 15/00 - Control, e.g. regulation, of pumps, pumping installations, or systems
• G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
• G01P 3/487 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
• G01P 13/04 - Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement

Abstract

A “safe grounding apparatus” (SGA) for safely grounding or neutralizing the electrical conductors for permanent magnet motor (PMM) powered artificial lift systems and methods of practicing the same are disclosed. The SGA of the present invention ameliorates some of the dangers associated with PMM's. Methods of shorting, grounding, testing and monitoring the electrical conductors of a permanent magnet motor in order to safely manipulate the conductors are also disclosed.

IPC Classes  ?

• H01R 13/655 - Protective earth or shield arrangements on coupling devices with earth brace
• H02G 15/105 - Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress connected to the cable shield only
• H02G 3/32 - Installations of cables or lines on walls, floors or ceilings using mounting clamps
• H01R 4/44 - Clamping areas on both sides of screw
• E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
• H02K 11/40 - Structural association with grounding devices
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H01R 4/2408 - Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
• H01R 12/59 - Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
• H01R 9/03 - Connectors arranged to contact a plurality of the conductors of a multiconductor cable
• H01R 4/48 - Clamped connectionsSpring connections using a spring, clip or other resilient member
• H01R 4/2407 - Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation having saw-tooth projections

Abstract

Apparatus and methods for controlling electric motors are disclosed. In addition, such apparatus and methods for starting and controlling electric motors and controlling electric motors switching from a PWM control to six step method of control. Methods and apparatus are further included to provide for robust control of an electric motor operating in a six-step running mode.

IPC Classes  ?

• H02P 21/13 - Observer control, e.g. using Luenberger observers or Kalman filters
• H02P 23/12 - Observer control, e.g. using Luenberger observers or Kalman filters
• H02P 23/14 - Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage

Abstract

An apparatus and method for sensing a rotational parameter of a rotating member of a downhole pumping system. The apparatus is capable of detecting motor rotation and pump operating conditions and includes control systems for methods utilizing the rotational parameters to control the operation of the downhole pumping system.

IPC Classes  ?

• F04D 13/10 - Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
• F04D 15/00 - Control, e.g. regulation, of pumps, pumping installations, or systems
• E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
• E21B 4/04 - Electric drives
• E21B 4/00 - Drives for drilling, used in the borehole
• F04D 13/08 - Units comprising pumps and their driving means the pump being electrically driven for submerged use
• H02K 5/132 - Submersible electric motors

Abstract

A “safe grounding apparatus” (SGA) for safely grounding or neutralizing the electrical conductors for permanent magnet motor (PMM) powered artificial lift systems and methods of practicing the same are disclosed. The SGA of the present invention ameliorates some of the dangers associated with PMM's. Methods of shorting, grounding, testing and monitoring the electrical conductors of a permanent magnet motor in order to safely manipulate the conductors are also disclosed.

IPC Classes  ?

• H01R 13/655 - Protective earth or shield arrangements on coupling devices with earth brace
• H02G 15/105 - Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress connected to the cable shield only
• H02G 3/32 - Installations of cables or lines on walls, floors or ceilings using mounting clamps
• H01R 4/44 - Clamping areas on both sides of screw
• E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
• H02K 11/40 - Structural association with grounding devices
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H01R 4/2408 - Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
• H01R 12/59 - Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
• H01R 9/03 - Connectors arranged to contact a plurality of the conductors of a multiconductor cable
• H01R 4/48 - Clamped connectionsSpring connections using a spring, clip or other resilient member
• H01R 4/2407 - Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation having saw-tooth projections

Abstract

Embodiments are disclosed for the control of downhole pumping systems that can perform a controlled draining operation of the downhole pumping system in the event of an interruption of a drive. Such embodiments include a zero power factor control, a motor braking, and a pumping down operation. The apparatus and the methods disclosed can include an independent piece of equipment interlocked with a variable speed drive, and installed at the primary or secondary of the step-up transformer where used. However, integration within other pieces of equipment, in particular the variable speed drive, and its control by the latter is also contemplated. Also disclosed is a transformer having a tap changer that includes a plurality of taps and contacts including shorting contacts, open contacts and auxiliary contacts.

IPC Classes  ?

• F04B 47/06 - Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
• F04B 17/03 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
• F04B 49/06 - Control using electricity

Abstract

An apparatus and method for controlling a downhole pumping system is disclosed. The apparatus is capable of detecting motor operating conditions and pump operating conditions thereby and includes control systems for utilizing the motor operating conditions to control the operation of the downhole pumping system.

IPC Classes  ?

• F04B 47/00 - Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
• F04B 49/06 - Control using electricity
• F04C 14/00 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
• F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
• F04D 15/02 - Stopping of pumps, or operating valves, on occurrence of unwanted conditions
• G05F 1/00 - Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems

Abstract

An apparatus and method is disclosed to monitor the operating condition of a rotational electromechanical system and to further sense and diagnose an abnormal condition of such systems in real time. The apparatus and method includes an improved technique of monitoring such systems, detecting problems, diagnosing causes and acting on the problems to reduce failures and increase production.

IPC Classes  ?

• G06Q 10/08 - Logistics, e.g. warehousing, loading or distributionInventory or stock management

Abstract

A “safe grounding apparatus” (SGA) for safely grounding or neutralizing the electrical conductors for permanent magnet motor (PMM) powered artificial lift systems and methods of practicing the same are disclosed. The SGA of the present invention ameliorates some of the dangers associated with PMM's. Methods of shorting, grounding, testing and monitoring the electrical conductors of a permanent magnet motor in order to safely manipulate the conductors are also disclosed.

IPC Classes  ?

• H01R 12/59 - Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
• H01R 13/655 - Protective earth or shield arrangements on coupling devices with earth brace
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H02K 11/40 - Structural association with grounding devices
• H01R 4/2408 - Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
• E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
• H01R 4/44 - Clamping areas on both sides of screw
• H02G 3/32 - Installations of cables or lines on walls, floors or ceilings using mounting clamps
• H02G 15/105 - Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress connected to the cable shield only
• H01R 9/03 - Connectors arranged to contact a plurality of the conductors of a multiconductor cable
• H01R 4/48 - Clamped connectionsSpring connections using a spring, clip or other resilient member

Abstract

An apparatus and method for sensing a rotational parameter of a rotating member of a downhole pumping system. The apparatus is capable of detecting motor rotation and pump operating conditions and includes control systems for methods utilizing the rotational parameters to control the operation of the downhole pumping system.

IPC Classes  ?

• G01P 13/04 - Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
• F04D 13/10 - Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
• F04D 15/00 - Control, e.g. regulation, of pumps, pumping installations, or systems

Abstract

SOGI based apparatus and methods for providing balanced three phase output signals free of harmonics, DC components and imbalance present in the input signals, are disclosed. In addition, such apparatus and methods for providing corresponding output signals which are drift-free integrals of the input signals and which signals may enable the control of a power electronics inverter for improved and robust grid power injection and for motor control are disclosed.

IPC Classes  ?

• G01R 19/25 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
• G05F 1/70 - Regulating power factorRegulating reactive current or power
• H02J 3/01 - Arrangements for reducing harmonics or ripples

Abstract

A “safe grounding apparatus” (SGA) for safely grounding or neutralizing the electrical conductors for permanent magnet motor (PMM) powered artificial lift systems and methods of practicing the same are disclosed. The SGA of the present invention ameliorates some of the dangers associated with PMM's. Methods of shorting, grounding, testing and monitoring the electrical conductors of a permanent magnet motor in order to safely manipulate the conductors are also disclosed.

IPC Classes  ?

• H01R 4/24 - Connections using contact members penetrating or cutting insulation or cable strands
• H01R 13/655 - Protective earth or shield arrangements on coupling devices with earth brace
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H02K 11/40 - Structural association with grounding devices
• H01R 4/2408 - Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
• E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
• H01R 9/03 - Connectors arranged to contact a plurality of the conductors of a multiconductor cable
• H01R 12/59 - Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
• H01R 4/48 - Clamped connectionsSpring connections using a spring, clip or other resilient member