公开(公告)号：US11480026B2

公开(公告)日：2022-10-25

申请号：US17075897

申请日：2020-10-21

Applicant: ConocoPhillips Company

Inventor： David D. Hearn ,  Casey Hirschmann ,  Randall S. Shafer

IPC: E21B33/13 ,  E21B47/06 ,  E21B36/00

Abstract: A composition and methods for setting a plug for well bores undergoing plugging and abandonment operations is described. Methods of setting the plug are also described include placing a blocking device below the plug location and creating a void space above the blocking device; placing a heat resistant base plate above the blocking device and introducing nano-thermite clusters and expandable bismuth alloy pellets into the void space; igniting the thermite and cooling the melted alloy to form a permanent plug in the void space.

公开(公告)号：US11377925B2

公开(公告)日：2022-07-05

申请号：US16175090

申请日：2018-10-30

Applicant: ConocoPhillips Company

Inventor： Dan Mueller ,  Geir Ove Titlestad ,  David D. Hearn ,  Curtis G. Blount ,  Rick D. Watts ,  Randall S. Shafer ,  Dale R. Doherty

IPC: E21B29/00 ,  E21B33/13 ,  E21B43/11

Abstract: Method of plugging a hydrocarbon well by a through-tubing technique are described. The method allows the tubing to be left in place. Only a short (

公开(公告)号：US10316612B2

公开(公告)日：2019-06-11

申请号：US15948322

申请日：2018-04-09

Applicant: ConocoPhillips Company

Inventor： Randall S. Shafer

IPC: E21B33/12 ,  E21B33/13 ,  C09K8/42 ,  C09K8/44

Abstract: A plug for Plug and Abandonment (P&A) operations and methods of installation and use. The plug is a two-part plug of bismuth-based alloy and resin, allowing for sealing of an oil well using two different mechanisms with a shorter plug.

公开(公告)号：US08967273B2

公开(公告)日：2015-03-03

申请号：US14200584

申请日：2014-03-07

Applicant: ConocoPhillips Company

Inventor： Anthony W. Ray ,  Randall S. Shafer ,  Ravi Aurora ,  Dominique P. Berta

IPC: E21B33/037 ,  E21B47/10 ,  E21B33/035

CPC classification number: E21B47/1025 ,  E21B33/035 ,  E21B41/005 ,  E21B43/0122

Abstract: A system for the detection, containment and removal of hydrocarbon leaks in a subsea environment.

Abstract translation: 在海底环境中检测，遏制和清除碳氢化合物泄漏的系统。

公开(公告)号：US10648279B2

公开(公告)日：2020-05-12

申请号：US15918393

申请日：2018-03-12

Applicant: ConocoPhillips Company

Inventor： Randall S. Shafer

IPC: E21B33/134 ,  E21B33/12 ,  E21B29/02 ,  E21B29/00

Abstract: A method for creating access to annular spacing during P&A operations is described. Specifically, helical coils are cut into one or more casings before the plugging material is set. The plugging material is able to exit the helical coils, forming multiple, small rock-to-rock seals.

公开(公告)号：US10584554B2

公开(公告)日：2020-03-10

申请号：US16386198

申请日：2019-04-16

Applicant: ConocoPhillips Company

Inventor： Randall S. Shafer

IPC: E21B33/12 ,  E21B33/13 ,  C09K8/42 ,  C09K8/44

Abstract: A plug for Plug and Abandonment (P&A) operations. The plug is a two-part plug of bismuth-based alloy and resin, and embedded heater sleeve providing reinforcement, allowing for sealing of an oil well using two different mechanisms with a shorter plug.

公开(公告)号：US10260288B2

公开(公告)日：2019-04-16

申请号：US14325589

申请日：2014-07-08

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Randall S. Shafer ,  Gordon T. Poss

IPC: E21B33/064 ,  E21B33/076 ,  E21B34/04 ,  E21B33/038 ,  E21B33/06 ,  E21B7/12 ,  E21B43/01

Abstract: Systems and methods contain fluids discharged from a subsea well or at the surface by capping the well blowout with a pre-positioned capping device. The capping device includes at least one blind shear ram and is separate from a blowout preventer. The blowout preventer may operate to control well events up to a certain pressure, above which the capping device is employed since the capping device has a higher pressure rating than the blowout preventer.

公开(公告)号：US09255446B2

公开(公告)日：2016-02-09

申请号：US14311881

申请日：2014-06-23

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Randall S. Shafer

IPC: E21B33/064 ,  E21B43/01 ,  E21B7/12

CPC classification number: E21B7/12 ,  E21B33/064 ,  E21B43/0122

Abstract: Systems and methods contain fluids discharged from a subsea well or at the surface by capping the well blowout with a pre-positioned capping device. The capping device includes at least one blind shear ram and is separate from a blowout preventer. Different personnel offsite of a rig drilling the well may have access and control to operate the device.

Abstract translation: 系统和方法包含从海底井或表面排出的流体，通过用预定位的封盖装置封盖井口。 封盖装置包括至少一个盲剪杆，并与防喷器分开。 钻井的钻井人员的不同人员可能会进入和控制操作设备。

公开(公告)号：US12010970B2

公开(公告)日：2024-06-18

申请号：US17934202

申请日：2022-09-22

Applicant: ConocoPhillips Company

Inventor： David D. Hearn ,  Casey Hirschmann ,  Randall S. Shafer

IPC: A01H6/46 ,  A01H5/10 ,  C09K8/42 ,  E21B33/13

CPC classification number: A01H6/4684 ,  A01H5/10 ,  C09K8/42 ,  E21B33/13

Abstract: A composition for a plug for use in wellbores undergoing plugging and abandonment operations, as well as plugs made with the composition, wherein the composition includes a first molten metal produced by igniting nano-thermite clusters of

公开(公告)号：US11486222B2

公开(公告)日：2022-11-01

申请号：US16944727

申请日：2020-07-31

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Randall S. Shafer

IPC: E21B36/00 ,  E21B33/134 ,  E21B29/00 ,  E21B33/12 ,  H03H9/54 ,  H03H9/58 ,  H03H9/60 ,  H03H9/64 ,  H03H9/70 ,  H03H9/72

Abstract: A method of plugging a hydrocarbon well includes deploying a downhole tool to remove at least a portion of a casing at a section of well to be plugged. Deploying a blocking device downhole to block a bottom of the section of well to be plugged. Deploying a plugging material downhole onto the blocking device to fill an area to be plugged. Deploying an exothermic fluid downhole, wherein activation of the exothermic material liquefies the plugging material. Allowing the plugging material and the exothermic fluid to solidify form a cast-in-place plug that fills the section of well to be plugged.