公开(公告)号：US20220250989A1

公开(公告)日：2022-08-11

申请号：US17170006

申请日：2021-02-08

Applicant: Saudi Arabian Oil Company ,  Chengdu Dongwei Technology Co., LTD

Inventor： Guodong Zhan ,  Jianhui Xu ,  Duanwei He ,  Abrar Alshaikh

IPC: C04B35/5831 ,  C04B35/645 ,  E21B10/00

Abstract: A method of forming a composite cutter for a downhole drilling tool is described. The method includes: mixing a polycrystalline diamond powder and a cubic boron nitride powder with a molar ratio between 0.1 and 0.9 to form a catalyst-free composite mixture; placing the catalyst-free composite mixture into a mold configured in a shape of a cutter; exposing the catalyst-free composite mixture to an ultra-high-pressure, high-temperature treatment including a pressure between 11 Gigapascals (GPa) and 20 GPa, and a temperature between 1300 Kelvins (K) and 2600 K to form a solid composite body; and cooling the solid composite body to form the composite cutter.

公开(公告)号：US20220213753A1

公开(公告)日：2022-07-07

申请号：US17542073

申请日：2021-12-03

Applicant: Saudi Arabian Oil Company

Inventor： Jothibasu Ramasamy ,  Chinthaka Pasan Gooneratne ,  Jianhui Xu

IPC: E21B27/02 ,  E21B17/10 ,  E21B21/00 ,  E21B47/12

Abstract: A method for on demand release of a downhole chemical comprising the steps of extending a drillstring into a wellbore of a subterranean well from a terranean surface comprising an actuator assembly and a modified stabilizer; identifying a downhole issue in the wellbore; activating the actuator assembly to transmit a signal to turn on the electromagnet of the modified stabilizer; creating a magnetic field when the electromagnet is turned on by the actuator assembly; opening the magnetically-actuated door due to the magnetically-actuated door being physically attracted to the magnetic field of the electromagnet; releasing downhole chemicals from the chemical storage compartment through the magnetically-actuated door; activating the actuator assembly to transmit a signal to turn off the electromagnet of the modified stabilizer; removing the magnetic field when the electromagnet is turned off by the actuator assembly; and closing the magnetically-actuated door when the magnetic field is removed.

公开(公告)号：US20220134410A1

公开(公告)日：2022-05-05

申请号：US17088179

申请日：2020-11-03

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Jianhui Xu ,  Guodong (David) Zhan

IPC: B21D41/02 ,  C23C16/02 ,  C23C16/27

Abstract: An expansion cone useful for expanding an expandable tubular, the expansion cone includes: a base material selected from a group consisting of alloyed steel, tungsten carbide coated alloyed steel, and cemented tungsten carbide; an intermediate buffering layer; and a coating deposited on an outer surface of the intermediate buffering layer; wherein the intermediate buffering layer is deposited between an outer surface of the steel alloy base material and the coating, wherein the intermediate buffering layer is one or more selected from a group consisting of Silicon (Si), Titanium (Ti), and silicon carbide (SiC), and wherein the coating is a diamond containing coating.

公开(公告)号：US12270256B2

公开(公告)日：2025-04-08

申请号：US17655132

申请日：2022-03-16

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Guodong Zhan ,  Jianhui Xu ,  Abdulwahab S. Al-Johar

IPC: E21B10/62 ,  E21B10/42 ,  E21B10/55 ,  E21B10/567

Abstract: A cutter system for a polycrystalline diamond compact (PDC) drill bit includes a body; a static blade attached to the body; a translatable blade attached to the body; and at least one PDC cutting structure attached to the translatable blade. The translatable blade is configured to be translated and maintained in a translated position. The body includes a cavity cooperatively positioned angularly away from the static blade. The translatable blade translates into the cavity. The translatable blade has a substantially retracted rest position and a substantially extended rest position. The cavity includes a restricting device within said cavity, so that said restricting device engages said translatable blade member in the substantially retracted position or the substantially extended position.

公开(公告)号：US11898422B2

公开(公告)日：2024-02-13

申请号：US17088179

申请日：2020-11-03

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Jianhui Xu ,  Guodong (David) Zhan

IPC: E21B43/10 ,  C23C16/02 ,  C23C16/27

CPC classification number: E21B43/105 ,  C23C16/0272 ,  C23C16/27

Abstract: An expansion cone useful for expanding an expandable tubular, the expansion cone includes: a base material selected from a group consisting of alloyed steel, tungsten carbide coated alloyed steel, and cemented tungsten carbide; an intermediate buffering layer; and a coating deposited on an outer surface of the intermediate buffering layer; wherein the intermediate buffering layer is deposited between an outer surface of the steel alloy base material and the coating, wherein the intermediate buffering layer is one or more selected from a group consisting of Silicon (Si), Titanium (Ti), and silicon carbide (SiC), and wherein the coating is a diamond containing coating.

公开(公告)号：US11828163B2

公开(公告)日：2023-11-28

申请号：US17644284

申请日：2021-12-14

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Abrar Alshaikh ,  Bodong Li ,  Jianhui Xu ,  Guodong Zhan

IPC: E21B47/01 ,  E21B34/14

CPC classification number: E21B47/01 ,  E21B34/142 ,  E21B2200/06

Abstract: A system includes a sliding sleeve, a ball landing seat, a plurality of microchips, a hydraulic piston, and a ball catcher. The sliding sleeve has a solid wall body and is installed within a tubular body. The tubular body has an exit groove. The ball landing seat is formed by the sliding sleeve. The plurality of microchips are housed in a microchip ring installed within the sliding sleeve. The hydraulic piston is installed within the microchip ring and is triggered by reception of a ball, blocking a flow path, in the ball landing seat. The hydraulic piston releases the plurality of microchips through the exit groove and into the well to gather data. The ball catcher is configured to receive and hold the ball after the plurality of microchips are released into the well.

公开(公告)号：US11821263B2

公开(公告)日：2023-11-21

申请号：US17072464

申请日：2020-10-16

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Jianhui Xu ,  Guodong (David) Zhan ,  Timothy Eric Moellendick ,  Amjad O. Shaarawi ,  Abdulwahab S. Al-Johar

IPC: E21B10/28 ,  E21B10/43 ,  E21B4/02 ,  E21B4/04 ,  E21B4/16 ,  E21B10/00 ,  E21B10/567 ,  E21B34/16

CPC classification number: E21B10/003 ,  E21B4/02 ,  E21B4/04 ,  E21B4/16 ,  E21B10/43 ,  E21B10/567 ,  E21B34/16 ,  E21B2200/06

Abstract: A reversible polycrystalline diamond compact (PDC) bit. The reversible PDC bit includes at least one blade, at least one front cutter disposed on a first side of the at least one blade, and at least one rear cutter disposed on a second side of the at least one blade, wherein the first side is opposite to the second side along a circumferential direction of the reversible PDC bit, wherein rotating the reversible PDC bit in a clockwise direction engages the at least one front cutter to cut into a subterranean formation, and wherein rotating the reversible PDC bit in a counter-clockwise direction engages the at least one rear cutter to cut into the subterranean formation.

公开(公告)号：US11808089B2

公开(公告)日：2023-11-07

申请号：US16999429

申请日：2020-08-21

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Jianhui Xu ,  Guodong (David) Zhan

IPC: E21B10/42 ,  E21B10/46 ,  E21B10/567 ,  E21B10/55 ,  E21B10/573 ,  B23K1/00 ,  B23K1/20 ,  C23C30/00 ,  B23K101/00

CPC classification number: E21B10/5735 ,  B23K1/0008 ,  B23K1/20 ,  C23C30/005 ,  B23K2101/002 ,  E21B10/55

Abstract: Methods of preventing or reducing cutter loss in a steel body PDC drilling tool may include applying a hardfacing layer on a surface of a PDC cutter pocket to form a covered PDC cutter pocket, the hardfacing layer comprising a metal binder and coated tungsten carbide particles; and bonding a PDC cutter into the covered PDC cutter pocket with a brazing material. Steel body PDC drilling tools may include a steel body, a PDC cutter, a PDC cutter pocket, and a hardfacing layer. Methods of preventing or reducing cutter loss in a steel body PDC drilling tool may include applying a hardfacing layer on a surface of a PDC cutter pocket of the steel body PDC drilling tool; applying a coated buffering layer on the hardfacing layer to form a coated PDC cutter pocket; and bonding the PDC cutter into the coated PDC cutter pocket with a brazing material.

公开(公告)号：US20230295989A1

公开(公告)日：2023-09-21

申请号：US17655132

申请日：2022-03-16

Applicant: Saudi Arabian Oil Company

Inventor： Guodong Zhan ,  Jianhui Xu ,  Abdulwahab S. Al-Johar

IPC: E21B10/62 ,  E21B10/42 ,  E21B10/55 ,  E21B10/567

CPC classification number: E21B10/62 ,  E21B10/42 ,  E21B10/55 ,  E21B10/567

Abstract: A cutter system for a polycrystalline diamond compact (PDC) drill bit includes a body; a static blade attached to the body; a translatable blade attached to the body; and at least one PDC cutting structure attached to the translatable blade. The translatable blade is configured to be translated and maintained in a translated position. The body includes a cavity cooperatively positioned angularly away from the static blade. The translatable blade translates into the cavity. The translatable blade has a substantially retracted rest position and a substantially extended rest position. The cavity includes a restricting device within said cavity, so that said restricting device engages said translatable blade member in the substantially retracted position or the substantially extended position.

公开(公告)号：US20230212914A1

公开(公告)日：2023-07-06

申请号：US18182707

申请日：2023-03-13

Applicant: Saudi Arabian Oil Company ,  Chengdu Dongwei Technology Co., Ltd.

Inventor： Guodong Zhan ,  Timothy E. Moellendick ,  Duanwei He ,  Jianhui Xu

IPC: E21B10/55 ,  E21B10/567 ,  E21B10/573

CPC classification number: E21B10/55 ,  E21B10/5673 ,  E21B10/5735

Abstract: Cutters for a downhole drill bit can be formed by providing a catalyst-free synthesized polycrystalline diamond (PCD) having a cross-sectional dimension of at least 8 millimeters; providing a substrate comprising tungsten carbide; and attaching the synthesized PCD to the substrate comprising tungsten carbide to form a PDC cutter.