公开(公告)号：US10018010B2

公开(公告)日：2018-07-10

申请号：US14163732

申请日：2014-01-24

Applicant: Baker Hughes Incorporated

Inventor： James G. King ,  James C. Doane ,  Jason M. Harper ,  Robert J. Taylor ,  Erwin D. Hernaez

IPC: E21B33/12 ,  E21B33/13 ,  E21B43/14 ,  E21B43/26

CPC classification number: E21B33/1208 ,  E21B33/13 ,  E21B43/14 ,  E21B43/26

Abstract: The frack plug has a sealing element that reforms when set to hold differential pressure. The element is granular with adhesive to hold the granular particles together but allow the shape to reform under setting force. The adhesive can be broken down with a chemical agent or in other ways to allow the seal to reform to the sealing position at the desired depth. As a result the structural components can disintegrate and the seal assembly can fragment into small pieces that can be circulated out of the well or allowed to drop to the hole bottom. The seal can have particles of controlled electrolytic materials (CEM), natural or synthetic sand, swelling or non-swelling rubber. The assembly can contain pellets that selectively release to initiate the breakdown of the structural components of the frack plug.

公开(公告)号：US20150345244A1

公开(公告)日：2015-12-03

申请号：US14292390

申请日：2014-05-30

Applicant: Baker Hughes Incorporated

Inventor： James C. Doane ,  James G. King ,  Jason M. Harper ,  Robert J. Taylor ,  Bennett M. Richard

IPC: E21B29/02 ,  E21B33/13 ,  E21B33/12

CPC classification number: E21B33/1208

Abstract: A fully disintegrating plug has a passage therethrough and a ball seat at an upper end. The seal material that comprises plastic nuggets, sand and a grease binder is initially disposed behind a protective sleeve. A wireline setting tool creates relative movement between a plunger and a mandrel body that has a ramp surface adjacent the outlet of the protective sleeve. The sleeve outlet is closed for running in but plunger movement pushes the seal material so as to displace the closure at the sleeve outlet with the seal material that is forced up the mandrel ramp surface and against the surrounding tubular. After an object is landed on the mandrel seat and the treating is concluded, the plug components are caused to disintegrate or otherwise fail for complete removal. Multiple plugs are contemplated for fracturing or other treating applications.

Abstract translation: 完全分解的塞子具有穿过其中的通道和在上端的球座。 包括塑料块，沙子和油脂粘合剂的密封材料最初设置在保护套之后。 电缆设置工具在柱塞和具有与保护套筒的出口相邻的斜面的心轴本体之间产生相对运动。 套管出口关闭以便运行，但是柱塞运动推动密封材料，以便在套筒出口处使密封材料移动，该密封材料被迫向心轴斜面表面并靠近周围的管。 在物体落在心轴座上并且处理结束之后，使塞子部件分解或以其他方式失效以完全移除。 预期用于压裂或其它处理应用的多个插塞。

公开(公告)号：US09605509B2

公开(公告)日：2017-03-28

申请号：US14292390

申请日：2014-05-30

Applicant: BAKER HUGHES INCORPORATED

Inventor： James C. Doane ,  James G. King ,  Jason M. Harper ,  Robert J. Taylor ,  Bennett M. Richard

IPC: E21B33/12

CPC classification number: E21B33/1208

Abstract: A fully disintegrating plug has a passage therethrough and a ball seat at an upper end. The seal material that comprises plastic nuggets, sand and a grease binder is initially disposed behind a protective sleeve. A wireline setting tool creates relative movement between a plunger and a mandrel body that has a ramp surface adjacent the outlet of the protective sleeve. The sleeve outlet is closed for running in but plunger movement pushes the seal material so as to displace the closure at the sleeve outlet with the seal material that is forced up the mandrel ramp surface and against the surrounding tubular. After an object is landed on the mandrel seat and the treating is concluded, the plug components are caused to disintegrate or otherwise fail for complete removal. Multiple plugs are contemplated for fracturing or other treating applications.

公开(公告)号：US20150361758A1

公开(公告)日：2015-12-17

申请号：US14306636

申请日：2014-06-17

Applicant: BAKER HUGHES INCORPORATED

Inventor： James C. Doane

IPC: E21B33/129 ,  E21B43/16

CPC classification number: E21B33/129 ,  E21B23/01

Abstract: An annularly shaped structure serves as a support and seal when pushed out on a ramp. A continuous seal in a groove is used on one or two sides to enhance sealing. A separate annular structure for sealing can be disposed adjacent to the shape having alternating longitudinal slots so that each structure is targeted to a different purpose. The structures disintegrate when made of a disintegrating material such as for example a controlled electrolytic material (CEM) so that removal of the barrier can occur after a treating operation such as fracturing where many such barriers are deployed. The slots have enlarged holes at their ends to reduce stress concentration that can lead to cracking.

Abstract translation: 当在斜坡上推出时，环形结构用作支撑和密封。 在一侧或两侧使用凹槽中的连续密封以增强密封。 用于密封的单独的环形结构可以布置成与具有交替的纵向狭槽的形状相邻，使得每个结构被瞄准到不同的目的。 当由诸如受控电解材料（CEM）的崩解材料制成时，该结构物分解，使得在诸如其中部署许多这种障碍物的压裂等处理操作之后可以发生阻挡层的移除。 槽在其端部具有扩大的孔，以减少可导致开裂的应力集中。