公开(公告)号：US20250003303A1

公开(公告)日：2025-01-02

申请号：US18733729

申请日：2024-06-04

Applicant: WWT North America Holdings, Inc.

Inventor： Rudolph Ernst Krueger, V

IPC: E21B23/01 ,  E21B4/18 ,  E21B23/00 ,  E21B23/04

Abstract: A gripper mechanism for a downhole tool is disclosed that includes an eccentric linkage mechanism. In operation, an axial force generated by a power section of the gripper expands the linkage mechanism, which applies a radial force to the interior surface of a wellbore or passage. A sliding portion allows the gripper to slide along a surface of the formation in response to the radial force applied to the interior surface of the wellbore or passage.

公开(公告)号：US20240426177A1

公开(公告)日：2024-12-26

申请号：US18213775

申请日：2023-06-23

Applicant: Halliburton Energy Services, Inc.

Inventor： Hock Soon Tiew ,  Kar Ki Andrew Loh ,  How Jiun Irvin Yuen ,  Simon Whye Kwong Wai

IPC: E21B4/18 ,  E21B4/00

Abstract: A method, that includes obtaining a calibration curve, reading a voltage from a rotary potentiometer, and calculating an extension length of an actuator shaft, using the voltage and the calibration curve, where a potentiometer shaft, of the rotary potentiometer, is coupled to a potentiometer gearbox, where the potentiometer gearbox is coupled to a motor, and where the motor is coupled to the actuator shaft.

公开(公告)号：US20240011354A1

公开(公告)日：2024-01-11

申请号：US17903990

申请日：2022-09-06

Applicant: Institute of Rock and Soil Mechanics, CAS

Inventor： Quan JIANG ,  Pengfei CHEN ,  Jie XIN ,  Herui ZHAO

IPC: E21B7/00 ,  E21B4/04 ,  E21B4/18 ,  E21B49/08

CPC classification number: E21B7/00 ,  E21B4/04 ,  E21B4/18 ,  E21B49/087

Abstract: A device for grinding a side surface of an inner wall of a borehole is disclosed. The device comprises a base on which a direct current motor is, one end of the direct current motor is electrically connected to a controller, and the other end of the direct current motor is in drive connection with a second right-angle drive steering gear rotating shaft of a right-angle drive steering gear by a universal drive joint. The controller is connected to an air pressure valve by a cable, and the air pressure valve is connected to an air pump through an air pipe. One end, away from the universal drive joint, of the right-angle drive steering gear is provided with a grinding cylinder. Grinding heads are respectively connected to first right-angle drive steering gear rotating shafts at both sides of the right-angle drive steering gear.

公开(公告)号：US11542810B2

公开(公告)日：2023-01-03

申请号：US16872737

申请日：2020-05-12

Applicant: WELLTEC A/S

Inventor： Jørgen Hallundbæk ,  Jimmy Kjærsgaard-Rasmussen

IPC: E21B47/09 ,  E21B4/18 ,  E21B41/00 ,  E21B47/085 ,  E21B47/092

Abstract: A downhole tool for determining laterals in a borehole wall or a borehole casing, comprising a tool housing extending along a longitudinal axis and having a circumference perpendicular to the longitudinal axis and a plurality of sonic transceivers. Each sonic transceiver transmitting sonic signals from the housing and receiving sonic signals reflected from the borehole wall or borehole casing in a predefined angular segment. The sonic transceivers are arranged along the circumference of the tool housing having a mutual distance and are capable of transmitting sonic signals radially away from the tool housing in an entire central angle of 360 degrees towards the borehole wall or borehole casing. During a pulse time, one sonic transceiver transmits a sonic signal in the predefined angular segment of that sonic transmitter, and one sonic transceiver, during a subsequent echo time, receives a reflected sonic signal from the borehole wall or borehole casing.

公开(公告)号：US20220074279A1

公开(公告)日：2022-03-10

申请号：US17478459

申请日：2021-09-17

Applicant: AARBAKKE INNOVATION, A.S. ,  PETROLIAM NASIONAL BERHAD

Inventor： Henning Hansen ,  Tarald Gudmestad ,  Luqmanul Shafiee ,  Siti Rahman

IPC: E21B29/06 ,  E21B4/18 ,  E21B23/01 ,  E21B29/02

Abstract: A plug and abandonment wellbore intervention technology to longitudinal and circumferential cut a wellbore tubular in the same wellbore intervention, followed by dropping the cut sections into the wellbore below the location of the lower circumferential cut, so that access to an external tubular is possible for e.g. cement bond logging, placement of barrier material, removal of external tubular, etc.

公开(公告)号：US11047190B2

公开(公告)日：2021-06-29

申请号：US16343714

申请日：2018-07-02

Applicant: Halliburton Energy Services, Inc.

Inventor： Jean G. Saint Germain ,  Adan Herrera ,  Tanest Chinwanawich

IPC: E21B23/14 ,  E21B23/00 ,  B60C7/16 ,  E21B41/00 ,  E21B4/18 ,  E21B43/116 ,  E21B47/12 ,  B60C7/14 ,  B60C11/00

Abstract: Provided are tractor wheels for a downhole tractor. An example tractor wheel comprises a series of continuous springs disposed on the circumference of the tractor wheel, wherein the individual continuous springs in the series of continuous springs are separated by a gap, and a void disposed on the interior of the tractor wheel and that is continuous about the circumference of the tractor wheel.

公开(公告)号：US10801274B2

公开(公告)日：2020-10-13

申请号：US15270032

申请日：2016-09-20

Applicant: Fabian Mau ,  Heiko Eggers ,  Volker Peters ,  Detlev Benedict

Inventor： Fabian Mau ,  Heiko Eggers ,  Volker Peters ,  Detlev Benedict

IPC: E21B17/10 ,  E21B47/12 ,  E21B4/18

Abstract: Extendable elements of downhole tools are provided having an extension direction component perpendicular to a tool axis, wherein a force is applied to the extendable element when in operation. The extendable elements comprise a first cross-section that includes the extension direction component, a first surface configured to receive a first force component of the force, the first force component substantially perpendicular to the first surface and a second surface configured to transfer at least a portion of the first force component of the force to a body of the downhole tool. The second surface and the extension direction component perpendicular to the tool axis draw a first angle that is between 0° and 90°.

公开(公告)号：US10711548B2

公开(公告)日：2020-07-14

申请号：US15998830

申请日：2018-08-16

Applicant: Saudi Arabian Oil Company

Inventor： Frode Hveding ,  Saeed M. AIMubarak

IPC: E21B23/00 ,  E21B23/14 ,  E21B4/18

Abstract: A wellbore tractor is capable of being positioned in a wellbore that includes a cased section, a first uncased section downhole of the cased section, and a second uncased section downhole of the first uncased section. The wellbore tractor is capable of self-propelling itself through the wellbore. An anchoring system is connected to the wellbore tractor. The anchoring system includes an appendage. When the wellbore tractor is in the cased section, the anchoring system is capable of extending the appendage from the cased section through the first uncased section into the second uncased section, anchoring the appendage in the second uncased section, and guiding the wellbore tractor from the cased section past the first uncased section and into the second uncased section.

公开(公告)号：US10683750B2

公开(公告)日：2020-06-16

申请号：US15778537

申请日：2016-12-05

Applicant: HERRENKNECHT AKTIENGESELLSCHAFT

Inventor： Timothée Couchoud ,  Thomas Joseph Edelmann ,  Patrick Michael Rennkamp ,  Frédéric Robert Cousseau

IPC: E21D9/11 ,  E21B10/10 ,  E21C27/22 ,  E21B4/18 ,  E21B7/28 ,  E21D9/10

Abstract: A device for advancing a cavity in underground mining, including a rotary drive, an axial shaft that is rotatable together with the rotary drive about a longitudinal axis, exactly one extraction drum that is rotatable about an drum rotational axis, and a connecting arrangement which is connected to the axial shaft and which supports the extraction drum, the connecting arrangement being configured in such a way that the drum rotational axis and the longitudinal axis lie in a plane, and are oriented at an acute angle with respect to one another in the advancing direction, in all operating positions during the advancement, characterized in that the extraction drum extends over at least an effective radius of the device in the radial direction of the device during advancement of the cavity.

公开(公告)号：US09903161B2

公开(公告)日：2018-02-27

申请号：US14830061

申请日：2015-08-19

Applicant: Thru Tubing Solutions, Inc.

Inventor： Roger Schultz ,  Brock Watson ,  Andy Ferguson

IPC: E21B4/02 ,  E21B4/18 ,  E21B7/20 ,  E21B17/10 ,  E21B23/04 ,  E21B17/22 ,  E21B17/046 ,  E21B23/00

CPC classification number: E21B7/201 ,  E21B4/02 ,  E21B4/18 ,  E21B7/20 ,  E21B7/203 ,  E21B17/046 ,  E21B17/1021 ,  E21B17/1064 ,  E21B17/22 ,  E21B23/04 ,  E21B2023/008 ,  F04C2/1073 ,  F04C13/008

Abstract: The disclosure of this application is directed to a downhole tool comprising a central element/member and a sleeve that is rotatably and orbitally disposed around the central element/member. The sleeve rotates and orbits around the central element/member responsive to fluid flowing through the downhole too. The disclosure is also related to a method of advancing the downhole tool in a well by flowing fluid through the tool.