Medtronic Minimed, Inc.

Baker Hughes Corporation

Baker Hughes, a Ge Compnay, LLC

Other

Baker Hughes Oilfield Operations LLC

Baker Hughes Holdings LLC

Gary Williams

John C Mueller, Jr

Sheldon B Moberg

John Joseph Mastrototaro

Mike Charles Vallet Tolle

Garry M Steil

David Garrett

Evan Gregory Mackay

Nathan A Etter

H Bud Clark

Bihong Wu

Andrew C Hayes

John C Mueller

Mark C Estes

Cary D Talbot

Patrick Kirby

“Mike” Charles Vallet Tolle

Mike Charles Tolle

Mahendra L Joshi

Paul H Kovelman

Carlos A Prieto

Brian Paul Reeves

Zheng Ye

Craig L Cooper

Linda I Torres

Shawn Gunter

Alexey Tyshko

Mark Bellmyer

Nikolas Davis

Vernon Chronister

Carroll Scott DeArman

Ameen Muhammed

Carroll Dearman

Jeremy Hillshafer

Curtis Johnson

Mohamed Ouf

John P McKenna

Jesse L Goin, Jr

Nathan G Nelson

Ameen Roshdy

Blayne Prine

Gordon Besser

Carol L Davis

Carroll Scott Dearman

David L Garrett

Shawen N Gunter

Bud Clark

Andy C Hayes

"mike" Charles Vallet Tolle

A torque determination system for use in connection with a pumping system includes a first shaft sensor assembly that produces a first shaft revolution completion signal and a second shaft sensor assembly that produces a second shaft revolution completion signal. The torque determination system includes a processor unit configured to determine the torque produced by the motor based on a shaft twist angle calculated by comparing the first shaft revolution completion signal and the second shaft revolution completion signal.

Measuring torque using shaft twist in electric submersible pumping system motors

Systems and methods for controlling downhole linear motors to minimize connections to surface equipment. In one embodiment, an ESP system is coupled by a power cable to equipment at the surface of a well. The ESP system includes a linear motor and a reciprocating pump. The motor has a set of position sensors that sense the position of a mover in the motor. Combining circuitry (E.G., XOR gate) combines the outputs of the position sensors into a single composite signal in which signal components corresponding to the position sensors are indistinguishable. A single channel carries the composite signal from the ESP system to the surface equipment. A control system determines a starting position of the motor and determines its subsequent position based on transitions in the composite signal. The motor is then operated based on the position determined from the composite signal.

Systems and methods for controlling downhole linear motors

A system for the resilience of an electric submersible pumping system to a transient power interruption includes a power backup connected to the variable speed drive of the pumping system. A method for controlling the electric submersible pump during the transient power interruption includes connecting a variable speed drive to a power source, charging one or more rechargeable batteries within the power backup, and connecting the power backup to the variable speed drive. The method continues with the steps of operating the motor with the variable speed drive, detecting a disruption in AC power from the power source to the variable speed drive, and applying power from the power backup to the variable speed drive to operate the motor during the transient interruption in electrical power.

System and method for managing transient power disruptions on ESP motor drives

A transformer configured for use in connection with a variable speed motor drive includes primary windings and secondary windings. The secondary windings are configured as wye-windings and a ground lead and a plurality of phase leads. The transformer includes a ferrite blocking circuit connected to the ground lead.

High frequency AC noise suppression within transformers

A combined pump and motor has a stator mounted for non-rotation in a housing. The stator has windings that create an electromagnetic field in the stator cavity when powered. An upper diffuser and a lower diffuser are mounted for non-rotation in the stator cavity. Annular clearances exist between the upper diffuser and the inner diameter of the stator and between the lower diffuser and the inner diameter of the stator. An impeller between the lower diffuser and the upper diffuser has an array of magnets circumferentially mounted around the impeller that impart rotation to the impeller in response to the electromagnetic field in the stator cavity. The array of magnets has at least one end portion extending into one of the upper and lower diffuser annular clearances.

Combined pump and motor with a stator forming a cavity which houses an impeller between upper and lower diffusers with the impeller having a circumferential magnet array extending upward and downward into diffuser annular clearances

Systems and methods for operating a linear motor (e.g., for an ESP), where the motor's mover moves in a reciprocating motion within a bore of the stator. Hard stops are located at the ends of the bore. The motor has a first set of sensors in the stator positioned proximate to the bore. When the mover moves in the bore, the sensors produce corresponding output signals, except when the mover is in a position near, but not in contact with a hard stop. While the sensors produce output signals, the motor is driven in a first direction toward the hard stop. When the sensors stop producing the output signals, the mover has reached the first position, and the motor is controlled to reverse the direction of the mover.

Systems and methods for operating a linear motor to prevent impacts with hard stops

A submersible well pump assembly has a pump housing with a pump discharge on upper end. A pump barrel is located within the pump housing, defining an annular passage between the barrel and the pump housing. A plunger is reciprocally carried in the barrel. A motor mounted below the pump housing and operatively couples to the plunger causes the plunger to reciprocate between an upstroke and a down-stroke. A valve and porting arrangement directs well fluid in the barrel below the plunger into the annular passage and out the discharge during a down stroke of the plunger. The valve and porting arrangement admits well fluid into the barrel below the plunger during the up stroke of the plunger. A connecting rod extends between the motor and the plunger. The connecting rod is in tension during the down-stroke.

Downhole motor driven reciprocating well pump

An infusion system includes an infusion device and a sensing device. The infusion system may further include a characteristic determining device. The infusion device also includes a communication system for transmitting to and receiving communications from the sensing device or a computer. The sensing device may sense an analyte of a bodily fluid of the user. The analyte may be calibrated using data from the infusion device and from a characteristic determining device. The system may be set up to automatically call for assistance when analytes reach a certain level.

System for providing blood glucose measurements to an infusion device

An infusion system is for infusing a fluid into the body of a patient. The infusion system includes at least one sensor for monitoring blood glucose concentration of the patient and an infusion device for delivering fluid to the patient. The sensor produces at least one sensor signal input. The infusion device uses the at least one sensor signal input and a derivative predicted algorithm to determine future blood glucose levels. The infusion device delivers fluid to the patient when future blood glucose levels are in a patient's target range. The infusion device is capable of suspending and resuming fluid delivery based on future blood glucose levels and a patient's low shutoff threshold. The infusion device suspends fluid delivery when future blood glucose levels falls below the low shutoff threshold. The infusion device resumes fluid delivery when a future blood glucose level is above the low shutoff threshold.

Algorithm sensor augmented bolus estimator for semi-closed loop infusion system

An external infusion device for delivering insulin from a reservoir into a body of a user includes the capability to deliver time-shifted basal insulin. The external infusion device includes at least one drive mechanism operatively couplable to the reservoir to deliver insulin into the body of the user, at least one processor to control the external infusion device, at least one power supply, at least one display device operatively coupled to the processor to provide visual information to the user, at least one input device operatively coupled to the processor to allow the user to command the processor, and a housing. Time-shifting of basal insulin occurs when a portion of basal insulin is added to a bolus, to a current basal rate, or to a bolus and a current basal rate.

External infusion device with programmable capabilities to time-shift basal insulin and method of using the same

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Broken Arrow, OK, United States of America

Gary Williams