公开(公告)号：US11668136B2

公开(公告)日：2023-06-06

申请号：US17480319

申请日：2021-09-21

Applicant: National Oilwell Varco, L.P.

Inventor： Jeffery Ronald Clausen ,  Nicholas Ryan Marchand

IPC: E21B7/06 ,  E21B4/02 ,  E21B21/08 ,  E21B47/09 ,  E21B47/024 ,  E21B47/06 ,  E21B47/07 ,  E21B47/13

CPC classification number: E21B7/068 ,  E21B4/02 ,  E21B7/067 ,  E21B21/08 ,  E21B47/024 ,  E21B47/06 ,  E21B47/07 ,  E21B47/09 ,  E21B47/13

Abstract: A downhole motor for directional drilling includes a driveshaft assembly including a driveshaft housing and a driveshaft rotatably disposed within the driveshaft housing, a bearing assembly including a bearing housing and a bearing mandrel rotatably disposed within the bearing housing, wherein the bearing mandrel is configured to couple with a drill bit, a bend adjustment assembly including a first position that provides a first deflection angle between a longitudinal axis of the driveshaft housing and a longitudinal axis of the bearing mandrel, and a second position that provides a second deflection angle between the longitudinal axis of the driveshaft housing and the longitudinal axis of the bearing mandrel that is different from the first deflection angle, and one or more hydraulic pumps configured to actuate the bend adjustment assembly between the first position and the second position.

公开(公告)号：US20230167685A1

公开(公告)日：2023-06-01

申请号：US17457084

申请日：2021-12-01

Applicant: Halliburton Energy Services, Inc.

Inventor： Joseph Munguia ,  Hasib Uddin ,  John R. Hardin

IPC: E21B4/00 ,  E21B4/02 ,  E21B7/06

CPC classification number: E21B4/003 ,  E21B4/02 ,  E21B7/06

Abstract: A drilling system for drilling a wellbore using drilling fluid includes a drillstring, a drill bit coupled to the drillstring, and a mud motor coupled to the drillstring and operable to rotate the drill bit by rotating a driveshaft with a bore. The drilling system also includes a bearing assembly that includes a bypass fluid flowpath through the bearings for drilling fluid to divert from the bore. A choke assembly positioned in the bypass fluid flowpath restricts flow of the diverted drilling fluid such that some diverted drilling fluid flows into an annulus in the wellbore outside of the bearing assembly through an unsealed annulus port and some of diverted drilling fluid is recaptured through a return flowline. The drilling system also includes a rotary steerable system operable to push the drill bit in a desired direction using pads extendable with the drilling fluid.

公开(公告)号：US11661822B2

公开(公告)日：2023-05-30

申请号：US17585239

申请日：2022-01-26

Applicant: Halliburton Energy Services, Inc.

Inventor： Eulalio De Jesus Rosas Fermin ,  Justin Mark Roberts ,  David Joe Steele

IPC: E21B41/00 ,  E21B17/07 ,  E21B7/06

CPC classification number: E21B41/0035 ,  E21B7/061 ,  E21B17/07

Abstract: Systems and methods of the present disclosure relate to protecting a control line as it passes through a junction in a downhole environment. A retractable transition joint (RTJ) comprises at least two members. A first member is operable to retract into a second member. A tubular extends through the first and second members. The tubular comprises a distal end that is removably attached to a distal end of the second member. The first and second members are operable to receive the control line.

公开(公告)号：US20230145859A1

公开(公告)日：2023-05-11

申请号：US17523503

申请日：2021-11-10

Applicant: Halliburton Energy Services, Inc.

Inventor： Jian Wu ,  Ketan C. Bhaidasna ,  Vy Pho ,  Robert P. Darbe

IPC: E21B44/00 ,  E21B7/06 ,  E21B47/022 ,  E21B47/026

CPC classification number: E21B44/005 ,  E21B7/06 ,  E21B47/022 ,  E21B47/026 ,  E21B2200/20 ,  E21B2200/22

Abstract: Systems and methods for stochastically projecting a well trajectory of a bottom hole assembly in a subsurface formation, where the bottom hole assembly includes one or more transducers, a trajectory controller coupled to the bottom hole assembly, an information handling system coupled to the transducers, and the information system includes a processor, and a non-transitory computer readable medium for storing one or more instructions that, when executed, causes the processor to receive a first one or more system model parameters from a system model parameter probability distribution; receive a first one or more steering inputs; receive a first one or more values corresponding to the bottom hole assembly initial conditions from the one or more transducers at a first position within a subsurface formation; and stochastically project a trajectory of the bottom hole assembly from the first position within the subsurface formation to a second position within the subsurface formation.

公开(公告)号：US11643909B2

公开(公告)日：2023-05-09

申请号：US17201942

申请日：2021-03-15

Applicant: Schlumberger Technology Corporation

Inventor： Mustafa Kamil Guven ,  Torgeir Rusten ,  In Chul Jang ,  Yaoxin Qian

IPC: E21B41/00 ,  E21B4/20 ,  E21B44/00 ,  E21B7/06 ,  H02K7/18 ,  E21B21/12 ,  E21B4/02 ,  F03B13/02 ,  H02P9/04

CPC classification number: E21B41/0085 ,  E21B4/02 ,  E21B4/20 ,  E21B7/068 ,  E21B21/12 ,  E21B44/005 ,  H02K7/18 ,  H02K7/1823 ,  F03B13/02 ,  H02P9/04

Abstract: A downhole system includes a drill string having a drilling fluid flow channel and at least one turbine alternator deployed in the flow channel. The turbine alternator is configured to convert flowing drilling fluid to electrical power. A voltage bus is configured to receive electrical power from the turbine alternator and at least one electrical motor is configured to receive electrical power from the voltage bus. An electronic controller is configured to provide active control of the turbine alternator via processing a desired speed of the electrical motor to generate a desired torque current and feeding the desired torque current forward to the turbine alternator. The turbine alternator is responsive to the desired torque current such that it modifies the electrical power provided to the voltage bus in response to the desired torque.

公开(公告)号：US11639634B2

公开(公告)日：2023-05-02

申请号：US17367968

申请日：2021-07-06

Applicant: Halliburton Energy Services, Inc.

Inventor： Hossam Gharib ,  Steven Graham Bell

IPC: E21B4/00 ,  F16C17/02 ,  F16C33/04 ,  E21B7/06

Abstract: A radial bearing apparatus including a housing with a housing bore defining a radial bearing housing surface, a shaft extending through the housing bore and defining a radial bearing shaft surface, and a radial bearing contact interface between the radial bearing housing surface and the radial bearing shaft surface for bearing a variable side force applied to the shaft. The radial bearing contact interface includes an oblique section in which the radial bearing housing surface and the radial bearing shaft surface are oblique to each other when the side force is zero and progressively increase in contact in an axial direction in response to an increasing magnitude of the side force.

公开(公告)号：US20230131473A1

公开(公告)日：2023-04-27

申请号：US18048056

申请日：2022-10-20

Applicant: Schlumberger Technology Corporation

Inventor： Alexander Trushin ,  Ling Li ,  Geoffrey Charles Downton

IPC: E21B7/06 ,  E21B21/08 ,  E21B47/00

Abstract: A method for drilling a subterranean wellbore includes rotating a bottom hole assembly (BHA) in the wellbore to drill. The BHA includes a rotary steerable tool or a steerable drill bit having at least one external pad configured to extend radially outward into contact with a wall of the wellbore and thereby steer the drilling. A rotation rate of the BHA is measured and a drilling parameter waveform is received. The rotation rate and the waveform are processed to select discrete times for extending the at least one external pad while drilling.

公开(公告)号：US20230125784A1

公开(公告)日：2023-04-27

申请号：US18048210

申请日：2022-10-20

Applicant: Schlumberger Technology Corporation

Inventor： Edward George Parkin ,  Christopher Rowe ,  Cecily Millwater

IPC: E21B47/18 ,  E21B7/06 ,  E21B47/022

Abstract: A pressure pulse generator and an RSS may change the pressure of a fluid flow through a BHA. If the dogleg at the BHA is less than a target dogleg, then the pressure pulse generator goes into pass-through mode to increase the pressure at the RSS and thereby increase a pad force of the RSS steering pads, increasing the severity of the dogleg. If a downhole tool is stuck, then the pressure pulse generator and the RSS are simultaneously actuated to unstick the downhole tool. The RSS is used to generate and transmit pressure pulses to a downhole tool.

公开(公告)号：US20230100038A1

公开(公告)日：2023-03-30

申请号：US17054432

申请日：2020-01-02

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Robello Samuel ,  Yuan Zhang

IPC: E21B47/007 ,  E21B44/04 ,  E21B7/06

Abstract: Aspects of the disclosed technology provide techniques for determining frictional forces bearing on a downhole drill string. In some implementations, a method of the disclosed technology can include steps for segmenting a plurality of continuous nodes of the drilling string into a first segment and a second segment, computing a first set of values corresponding with one or more nodes in the first segment using a first model, computing a second set of values corresponding with one or more nodes in the second segment using a second model, and determining a torque of the drill string based on the first set of values and the second set of values. In some aspects, the method can further include steps for determining a drag force on the drill string based on the first set of values and the second set of values. Systems and machine-readable media are also provided.

公开(公告)号：US20230088047A1

公开(公告)日：2023-03-23

申请号：US17653198

申请日：2022-03-02

Applicant: Halliburton Energy Services, Inc.

Inventor： Pete L. Schiermeier ,  Sean Hinke

IPC: E21B47/0228 ,  E21B7/06

Abstract: A ranging system having magnets positioned at various locations along the drive system. Location of the magnetics is shifted to different points on the drilling string to remove the need for a nearby bit sub that would detrimentally affect the steerability of the drilling system.