公开(公告)号：US20160290093A1

公开(公告)日：2016-10-06

申请号：US14954525

申请日：2015-11-30

Applicant: BAKER HUGHES INCORPORATED

Inventor： James C. Doane ,  Jason M. Harper ,  Yingqing Xu ,  Barbara A. Pratt ,  Gary L. Anderson ,  David S. Bishop ,  Antonio C. Ruffo ,  Robert J. Taylor ,  Anton David ,  David K. Acquaye

IPC: E21B33/128 ,  E21B33/129

CPC classification number: E21B33/128 ,  E21B33/129 ,  E21B33/1291

Abstract: A compression set sealing element preferably 85A-95A TDI-Ester Polyurethane is compressed axially and retained against extrusion by CEM anti-extrusion rings. The compressed state of the sealing element is locked in by a degradable lock ring assembly. The mandrel is secured to an upper end of a slip cone and a breakable slip ring is secured by a wireline setting tool until the set position is reached. The slip ring breaks into segments that are pulled up the slip cone as the setting tool pushes on a sleeve to axially compress the sealing element and lock in the set. The sealing element is retained against extrusion by CEM anti-extrusion rings. When the setting tool is removed a ball seat is exposed for delivery of a ball to build pressure into the formation for fracturing. The entirety of the plug then disintegrates from well fluid exposure.

公开(公告)号：US20160290092A1

公开(公告)日：2016-10-06

申请号：US14677415

申请日：2015-04-02

Applicant: BAKER HUGHES INCORPORATED

Inventor： James C. Doane ,  Jason M. Harper ,  Yingqing Xu ,  Barbara A. Pratt ,  Gary L. Anderson ,  David S. Bishop ,  Antonio C. Ruffo ,  Robert J. Taylor ,  David K. Acquaye

IPC: E21B33/128

CPC classification number: E21B33/128

Abstract: A compression set sealing element preferably 85A-95A TDI-Ester Polyurethane is compressed axially and retained against extrusion by CEM anti-extrusion rings. The compressed state of the sealing element is locked in by a degradable lock ring assembly. The mandrel is secured to an upper end of a slip cone and a breakable slip ring is secured by a wireline setting tool until the set position is reached. The slip ring breaks into segments that are pulled up the slip cone as the setting tool pushes on a sleeve to axially compress the sealing element and lock in the set. The sealing element is retained against extrusion by CEM anti-extrusion rings. When the setting tool is removed a ball seat is exposed for delivery of a ball to build pressure into the formation for fracturing. The entirety of the plug then disintegrates from well fluid exposure.

Abstract translation: 压缩永久密封元件优选85A-95A TDI-Ester聚氨酯被轴向压缩并保持抵抗CEM抗挤出环挤压。 密封元件的压缩状态由可降解的锁环组件锁定。 心轴被固定到滑动锥体的上端，并且可滑动的滑环通过有线设置工具固定，直到到达设定位置。 当安装工具推动套筒以轴向压缩密封元件并锁定在组件中时，滑环突破成滑动锥体上拉的段。 密封元件通过CEM抗挤压环保持抵抗挤出。 当固定工具被移除时，球座被暴露以输送球以将压力施加到地层中用于压裂。 然后，整个塞子从良好的流体暴露中分解。

公开(公告)号：US20170089175A1

公开(公告)日：2017-03-30

申请号：US14996956

申请日：2016-01-15

Applicant: BAKER HUGHES INCORPORATED

Inventor： James C. Doane ,  Ronnie D. Russell ,  Barbara A. Pratt ,  Erwin D. Hernaez ,  Juan C. Flores Perez ,  Elias Pena ,  Tristan R. Wise ,  Steven R. Merrill

IPC: E21B34/10 ,  E21B43/26

CPC classification number: E21B34/10 ,  E21B23/006 ,  E21B34/102 ,  E21B34/103 ,  E21B43/26 ,  E21B2034/002

Abstract: A valve assembly for a plug to close off a zone in the well for further treatment above the plug features a valve member initially pinned in an open position where flow up to a predetermined level can move through without dislodging the valve plug to move to its associated seat. If the perforating gun misfires a replacement gun can be run in with flow as the plug is still retained in the position for flow through the plug. On the other hand flow around the plug above a predetermined level will shear retainers for the plug and let the plug land on its seat closing flow in a downhole direction for treatment.