公开(公告)号：US10907429B2

公开(公告)日：2021-02-02

申请号：US15784882

申请日：2017-10-16

Applicant: YingQing Xu ,  Beau Wright ,  Zhiyue Xu ,  James Doane ,  Mike Johnson ,  Jack Farmer ,  David Ruddock

Inventor： YingQing Xu ,  Beau Wright ,  Zhiyue Xu ,  James Doane ,  Mike Johnson ,  Jack Farmer ,  David Ruddock

IPC: E21B29/02 ,  E21B33/12 ,  E21B29/00

Abstract: A tubular includes an outer surface and an inner surface defining a passage. A plug is arranged in the tubular blocking the passage. The plug is formed from a disintegrating on demand (DOD) material. An ignition device is coupled to the plug. An excitation mechanism is selectively operatively associated with the ignition device. The excitation mechanism selectively activates the ignition device to break apart the plug.

公开(公告)号：US10822910B2

公开(公告)日：2020-11-03

申请号：US16052155

申请日：2018-08-01

Applicant: James Doane

Inventor： James Doane

IPC: E21B33/122 ,  E21B33/12 ,  E21B17/02 ,  E21B43/12

Abstract: A packer including a body having a first axial end and a second axial end, an element disposed about the body, and a flow passage within the body extending from the first axial end to the second axial end. The body defines a first pathway including a first port dimensioned and configured to receive a first penetrator and a second opening having a dimension smaller than the first port, the first port being located at the first axial end of the body and the second opening being located at the second axial end of the body. A second pathway defined by the body includes a second port dimensioned and configured to receive a second penetrator and a first opening having a dimension smaller than the second port, the second port being located at the second axial end of the body and the first opening being located at the first axial end of the body.

公开(公告)号：US20190338605A1

公开(公告)日：2019-11-07

申请号：US15971472

申请日：2018-05-04

Applicant: Gary Anderson ,  James Doane

Inventor： Gary Anderson ,  James Doane

IPC: E21B19/10 ,  E21B23/01

Abstract: A slip and cone arrangement including a slip having a centrally located cone interconnection feature, and a cone having a slip retention feature engageable with the interconnection feature. A slip including a body, the body having a T section, and an engagement section, the engagement section having a centrally located cone interconnection feature.

公开(公告)号：US10364630B2

公开(公告)日：2019-07-30

申请号：US15598977

申请日：2017-05-18

Applicant: Zhiyue Xu ,  James Doane ,  Yingqing Xu ,  Zhihui Zhang

Inventor： Zhiyue Xu ,  James Doane ,  Yingqing Xu ,  Zhihui Zhang

IPC: E21B29/02 ,  F42D1/05 ,  E21B33/12 ,  E21B34/06 ,  E21B43/1185 ,  E21B47/12

Abstract: A downhole assembly includes a downhole tool including a degradable-on-demand material and a triggering system. The degradable-on-demand material includes a matrix material and an energetic material configured to generate energy upon activation to facilitate the degradation of the downhole tool. The triggering system includes an igniter arranged to ignite the downhole tool, an electrical circuit, and a pre-set timer. In an open condition of the circuit the igniter is not activated, and in a closed condition of the circuit the igniter is activated. The pre-set timer is operable to close the electrical circuit after a pre-set time period.

公开(公告)号：US10233718B2

公开(公告)日：2019-03-19

申请号：US15726912

申请日：2017-10-06

Applicant: James Doane

Inventor： James Doane

IPC: E21B33/12 ,  E21B33/128 ,  E21B43/26 ,  E21B34/14

Abstract: A degradable seat arrangement consisting of a pusher; a cone having a tapered face disposed radially outwardly of the pusher; and a seal having a seal deformation face configured to contact the tapered face. A method for creating a seat in a borehole.

公开(公告)号：US20190078410A1

公开(公告)日：2019-03-14

申请号：US15699216

申请日：2017-09-08

Applicant: YingQing Xu ,  Zhihui Zhang ,  James Doane ,  Zhiyue Xu

Inventor： YingQing Xu ,  Zhihui Zhang ,  James Doane ,  Zhiyue Xu

IPC: E21B29/02

Abstract: A system for degrading a structure includes the structure formed of a degradable-on-demand material, an ignitor arranged to transfer heat to the structure; and, a mechanical impactor movable with respect to the structure, wherein the ignitor increases in temperature upon impact of the mechanical impactor into the ignitor, and heat from the ignitor initiates degradation of the structure.

公开(公告)号：US10221643B2

公开(公告)日：2019-03-05

申请号：US15599142

申请日：2017-05-18

Applicant: Zhihui Zhang ,  Zhiyue Xu ,  Goang-Ding Shyu ,  Juan Carlos Flores Perez ,  James Doane ,  Yingqing Xu

Inventor： Zhihui Zhang ,  Zhiyue Xu ,  Goang-Ding Shyu ,  Juan Carlos Flores Perez ,  James Doane ,  Yingqing Xu

IPC: E21B29/02 ,  E21B47/06 ,  E21B47/00 ,  E21B33/12 ,  E21B34/06 ,  E21B43/116 ,  E21B47/18 ,  E21B47/12 ,  E21B34/00

Abstract: A downhole assembly includes a downhole tool including a degradable-on-demand material, the degradable-on-demand material including a matrix material, and a unit in contact with the matrix material, the unit including a core comprising an energetic material configured to generate energy upon activation to facilitate degradation of the downhole tool and, an activator disposed in contact with the core, the activator having a triggering system including an electrical circuit, an igniter in the electrical circuit arranged to ignite the energetic material, a sensor configured to sense a target event or parameter within the borehole, and a control unit arranged to receive sensed signals from the sensor and to deliver a start signal to the electrical circuit in response to the sensed signals indicating an occurrence of the target event or parameter wherein, after the start signal is delivered from the control unit, the electrical circuit is closed and the igniter is initiated.

公开(公告)号：US20180355694A1

公开(公告)日：2018-12-13

申请号：US15621179

申请日：2017-06-13

Applicant: Steven Robert Merrill ,  James Doane ,  Yash Parekh ,  Ronnie Russell ,  Andre Porter

Inventor： Steven Robert Merrill ,  James Doane ,  Yash Parekh ,  Ronnie Russell ,  Andre Porter

IPC: E21B33/12 ,  E21B43/26

CPC classification number: E21B33/12 ,  E21B43/26

Abstract: A pressure differential plug including a mandrel, a baffle within the mandrel, and one or more passageways in the baffle, the passageways configured and dimensioned to restrict flow therethrough due to a valve coefficient thereof to both allow fluid flow therethrough and simultaneously allow the building of actuation pressure against the baffle without landing a member on the baffle. A borehole system including a borehole, a string in the borehole, the string including a plug as as in any prior embodiment. A method for causing an actuation via pressure including flowing fluid through a baffle of a plug as in any prior embodiment, increasing a flow rate through the baffle to raise pressure upstream of the baffle to an actuation level without seating a member on the baffle.

公开(公告)号：US20180283121A1

公开(公告)日：2018-10-04

申请号：US15599142

申请日：2017-05-18

Applicant: Zhihui Zhang ,  Zhiyue Xu ,  Goang-Ding Shyu ,  Juan Carlos Flores Perez ,  James Doane ,  Yingqing Xu

Inventor： Zhihui Zhang ,  Zhiyue Xu ,  Goang-Ding Shyu ,  Juan Carlos Flores Perez ,  James Doane ,  Yingqing Xu

IPC: E21B29/02 ,  E21B47/06 ,  E21B47/00 ,  E21B33/12 ,  E21B34/06

CPC classification number: E21B29/02 ,  E21B33/12 ,  E21B34/06 ,  E21B43/116 ,  E21B47/00 ,  E21B47/06 ,  E21B47/122 ,  E21B47/18 ,  E21B2034/005

Abstract: A downhole assembly includes a downhole tool including a degradable-on-demand material, the degradable-on-demand material including a matrix material, and a unit in contact with the matrix material, the unit including a core comprising an energetic material configured to generate energy upon activation to facilitate degradation of the downhole tool and, an activator disposed in contact with the core, the activator having a triggering system including an electrical circuit, an igniter in the electrical circuit arranged to ignite the energetic material, a sensor configured to sense a target event or parameter within the borehole, and a control unit arranged to receive sensed signals from the sensor and to deliver a start signal to the electrical circuit in response to the sensed signals indicating an occurrence of the target event or parameter wherein, after the start signal is delivered from the control unit, the electrical circuit is closed and the igniter is initiated.

公开(公告)号：US20180023357A1

公开(公告)日：2018-01-25

申请号：US15214202

申请日：2016-07-19

Applicant: James Doane

Inventor： James Doane

IPC: E21B23/01 ,  E21B33/129

CPC classification number: E21B33/128 ,  E21B23/01 ,  E21B23/04 ,  E21B33/12 ,  E21B33/129 ,  E21B33/1293

Abstract: An embodiment of a gripping arrangement includes a mandrel having an axially extending groove therein, a first slip ring about the mandrel, a first cone about the mandrel spaced from the first slip ring, and a key engaged with the groove such that the key is axially movable and rotationally fixed relative to the mandrel. The key is disposed to maintain the spacing between the first slip ring and the first cone. The gripping arrangement also includes a release feature releasably interconnected with the key and method.