公开(公告)号：US09995103B2

公开(公告)日：2018-06-12

申请号：US14918102

申请日：2015-10-20

Applicant: BAKER HUGHES INCORPORATED

Inventor： John K. Wakefield ,  Edward T. Wood ,  Aubrey C. Mills

IPC: E21B33/12 ,  E21B33/128

CPC classification number: E21B33/1216 ,  E21B33/128

Abstract: A sealing element is flanked by wedge-shaped extrusion ring assemblies. The rings climb a ramp on an adjacent pedestal ring on the way out to the borehole wall. Depending on the dimension of the gap to be spanned the extrusion rings slide part way up the pedestal ring ramp or to the top of the pedestal ring. An anchor ring is initially forced up an opposite ramp of the pedestal ring. If the sealing gap is short the anchor ring touches the borehole wall to act as an anchor for the plug while remaining spaced apart from the extrusion ring assembly. For larger gaps the anchor ring moves out far enough to the borehole wall and in contact with the extrusion ring located on top of the pedestal so that reaction forces are directed to keep the anchor ring wedged in position for support of the extrusion ring assembly.

公开(公告)号：US20170107783A1

公开(公告)日：2017-04-20

申请号：US14918102

申请日：2015-10-20

Applicant: BAKER HUGHES INCORPORATED

Inventor： John K. Wakefield ,  Edward T. Wood ,  Aubrey C. Mills

IPC: E21B33/129 ,  E21B33/128

CPC classification number: E21B33/1216 ,  E21B33/128

Abstract: A sealing element is flanked by wedge-shaped extrusion ring assemblies. The rings climb a ramp on an adjacent pedestal ring on the way out to the borehole wall. Depending on the dimension of the gap to be spanned the extrusion rings slide part way up the pedestal ring ramp or to the top of the pedestal ring. An anchor ring is initially forced up an opposite ramp of the pedestal ring. If the sealing gap is short the anchor ring touches the borehole wall to act as an anchor for the plug while remaining spaced apart from the extrusion ring assembly. For larger gaps the anchor ring moves out far enough to the borehole wall and in contact with the extrusion ring located on top of the pedestal so that reaction forces are directed to keep the anchor ring wedged in position for support of the extrusion ring assembly.

公开(公告)号：US20150129218A1

公开(公告)日：2015-05-14

申请号：US14080544

申请日：2013-11-14

Applicant: Baker Hughes Incorporated

Inventor： Beau R. Wright ,  Edward T. Wood

IPC: E21B29/02 ,  E21B33/12

CPC classification number: E21B43/263 ,  E21B34/14 ,  E21B43/14

Abstract: The method allows a pressure test of a string with external packers without having the packer setting apparatus exposed to tubing pressure so that at a later time and at a lower pressure than the pressure test pressure, the external packers can be set with annulus pressure opened to a piston that references a low pressure chamber. The packers can be set in any desired order. Thereafter, a circulation sub can be triggered to open to allow the fracking to start. Fracking each interval beyond the first in an uphole direction can be accomplished with pumping ever increasing balls to seats associated with sliding sleeves to open the sleeves in order. In cemented completions, after a pressure test, a ported sub can open on a timer or other signal to allow pumping a combination of a bridge plug and a perforating gun to the desired location.

Abstract translation: 该方法允许对具有外部封隔器的管柱进行压力测试，而不会使封隔器设定装置暴露于管道压力，使得在稍后的时间和比压力测试压力更低的压力下，外部封隔器可设置为开放至 参考低压室的活塞。 封隔器可以按任何顺序设置。 此后，循环辅助装置可以被触发打开以允许压裂开始。 可以通过将不断增加的球泵送到与滑动套筒相关联的座椅以按顺序打开套筒来实现在井上方向上超过第一的间隔。 在水泥完井中，在压力测试之后，移动的子罐可以在定时器或其他信号上打开以允许将桥塞和射孔枪的组合泵送到期望的位置。

公开(公告)号：US09719339B2

公开(公告)日：2017-08-01

申请号：US14298287

申请日：2014-06-06

Applicant: BAKER HUGHES INCORPORATED

Inventor： Bennett M. Richard ,  Edward T. Wood

IPC: E21B43/26 ,  E21B33/124 ,  E21B43/116 ,  E21B43/14 ,  E21B33/12

CPC classification number: E21B43/26 ,  E21B33/1208 ,  E21B33/124 ,  E21B43/116 ,  E21B43/14

Abstract: A well with existing perforations is re-fractured by positioning isolators at locations offset from the existing perforations and perforating through those isolators. The isolators are part of a bottom hole assembly that can be delivered on coiled or rigid tubing. The initial fractures can be straddled by the isolators with no mandrel openings between them to effectively isolate the existing perforations as new perforations take place through the isolators. The elements of the isolators can have internal gaps to allow for axial shifting after perforation that is thermally induced. The gaps assure remaining alignment with the new perforations despite some axial shifting. The bottom hole assembly can alternatively have an anchor to resist thermally induced forces that can cause axial shifting.

公开(公告)号：US20150114664A1

公开(公告)日：2015-04-30

申请号：US14063171

申请日：2013-10-25

Applicant: Baker Hughes Incorporated

Inventor： Ewoud J. Hulsewe ,  Edward T. Wood

IPC: E21B34/14 ,  E21B43/26 ,  E21B34/16

CPC classification number: E21B34/14 ,  E21B34/10 ,  E21B34/16 ,  E21B43/14 ,  E21B43/26 ,  E21B2034/005 ,  E21B2034/007

Abstract: Fracking ports are initially obstructed with respective biased sleeves that have an associated release device responsive to a unique signal. The signal can be electronic or magnetic and delivered in a ball or dart that is dropped or pumped past a sensor associated with each release device. Each sensor is responsive to a unique signal. When the signal is received the release device allows the bias to shift the sleeve to open the fracture port and to let a flapper get biased onto an associated seat. The flapper and seat are preferably made from a material that eventually disappears leaving an unobstructed flow path in the passage. The method calls for repeating the process in an uphole direction until the entire zone is fractured. The flapper and seat can dissolve or otherwise disappear with well fluids, thermal effects, or added fluids to the well.

Abstract translation: 最初，破裂端口受到相应的偏置套筒的阻碍，该套筒具有响应于唯一信号的相关联的释放装置。 信号可以是电子的或磁性的，并且以落在或者被泵送通过与每个释放装置相关联的传感器的球或飞镖传送。 每个传感器都响应一个独特的信号。 当接收到信号时，释放装置允许偏压移动套筒以打开断裂端口并使挡板偏置到相关联的座上。 挡板和座椅优选地由最终消失的材料制成，从而在通道中留下无阻碍的流动路径。 该方法要求在井下方向重复该过程，直到整个区域断裂。 挡板和座椅可以溶解或以其他方式消除井液，热效应或添加的流体到井中。

公开(公告)号：US20150114621A1

公开(公告)日：2015-04-30

申请号：US14063084

申请日：2013-10-25

Applicant: Baker Hughes Incorporated

Inventor： Edward T. Wood ,  David P. Gerrard ,  Joshua C. Falkner ,  Ramon R. Garza

IPC: E21B33/00

CPC classification number: E21B33/124 ,  E21B33/00 ,  E21B34/06 ,  E21B41/00

Abstract: A pressure compensation system for enclosed spaces at a subterranean location changes volume with thermally induced solubility changes of a salt in water. The salt is held in an enclosure that is either rigid, or impervious and flexible or porous and flexible. As well conditions change and temperature increases, some of the salt goes into solution with a resulting decrease in volume that compensates for thermally induced volume increase due to temperature increase in the borehole. Conversely, a decrease in borehole temperature brings some of the salt out of solution for a volume increase to offset the volume decrease of the adjacent fluid to keep the pressure stabilized in the enclosed volume. In the porous enclosure embodiment the openings are sufficiently small to retain the salt even in solution. However, minimal net flows are anticipated for pressure compensation due to changing thermal effects.

Abstract translation: 在地下位置的封闭空间的压力补偿系统通过盐在水中的热诱导溶解度变化改变体积。 盐保持在刚性或不渗透性，柔性或多孔和柔性的外壳中。 同样条件变化和温度升高，一些盐进入溶液，由此导致的体积减少，其补偿由于钻孔中的温度升高引起的热诱导体积增加。 相反，钻孔温度的降低会使一些盐溶液溶解，以增加体积，以抵消相邻流体的体积减少，以保持压力稳定在封闭体积中。 在多孔外壳的实施例中，开口足够小以便甚至在溶液中保留盐。 然而，由于热效应的变化，预计压力补偿的最小净流量。

公开(公告)号：US10082002B2

公开(公告)日：2018-09-25

申请号：US15176858

申请日：2016-06-08

Applicant: BAKER HUGHES INCORPORATED

Inventor： Ewoud J. Hulsewe ,  Edward T. Wood

IPC: E21B34/10 ,  E21B43/26 ,  E21B34/14 ,  E21B34/16 ,  E21B43/14 ,  E21B34/00

CPC classification number: E21B34/14 ,  E21B34/10 ,  E21B34/16 ,  E21B43/14 ,  E21B43/26 ,  E21B2034/005 ,  E21B2034/007

Abstract: Fracking ports are initially obstructed with respective biased sleeves that have an associated release device responsive to a unique signal. The signal can be electronic or magnetic and delivered in a ball or dart that is dropped or pumped past a sensor associated with each release device. Each sensor is responsive to a unique signal. When the signal is received the release device allows the bias to shift the sleeve to open the fracture port and to let a flapper get biased onto an associated seat. The flapper and seat are preferably made from a material that eventually disappears leaving an unobstructed flow path in the passage. The method calls for repeating the process in an uphole direction until the entire zone is fractured. The flapper and seat can dissolve or otherwise disappear with well fluids, thermal effects, or added fluids to the well.

公开(公告)号：US20170058636A1

公开(公告)日：2017-03-02

申请号：US15347359

申请日：2016-11-09

Applicant: BAKER HUGHES INCORPORATED

Inventor： Edward T. Wood ,  Ray P. Vincent ,  Yang Xu

IPC: E21B34/08 ,  E21B34/16 ,  E21B47/18

CPC classification number: E21B34/08 ,  E21B21/10 ,  E21B33/13 ,  E21B33/14 ,  E21B34/16 ,  E21B47/18

Abstract: A tubular string is run into a wellbore with a remotely actuated valve near a lower end adjacent a cementing shoe. The valve is triggered to operate without intervention such as by mud pulses generated at the surface and recognized by a sensor linked to a processor adjacent the valve to trigger the valve to close. Alternative actuation systems are envisioned for the valve that is located near the cementing shoe.

Abstract translation: 一个管状的管子在靠近固井鞋的下端靠近远程致动的阀门进入井眼。 触发阀门的操作，无需干预，例如在表面产生的泥浆脉冲，并被连接到邻近阀门的处理器的传感器识别，以触发阀门关闭。 对于位于固井鞋附近的阀，可以设想替代的致动系统。

公开(公告)号：US09488030B2

公开(公告)日：2016-11-08

申请号：US14063084

申请日：2013-10-25

Applicant: Baker Hughes Incorporated

Inventor： Edward T. Wood ,  David P. Gerrard ,  Joshua C. Falkner ,  Ramon R. Garza

IPC: E21B33/124 ,  E21B41/00 ,  E21B33/00 ,  E21B34/06

CPC classification number: E21B33/124 ,  E21B33/00 ,  E21B34/06 ,  E21B41/00

Abstract: A pressure compensation system for enclosed spaces at a subterranean location changes volume with thermally induced solubility changes of a salt in water. The salt is held in an enclosure that is either rigid, or impervious and flexible or porous and flexible. As well conditions change and temperature increases, some of the salt goes into solution with a resulting decrease in volume that compensates for thermally induced volume increase due to temperature increase in the borehole. Conversely, a decrease in borehole temperature brings some of the salt out of solution for a volume increase to offset the volume decrease of the adjacent fluid to keep the pressure stabilized in the enclosed volume. In the porous enclosure embodiment the openings are sufficiently small to retain the salt even in solution. However, minimal net flows are anticipated for pressure compensation due to changing thermal effects.

Abstract translation: 在地下位置的封闭空间的压力补偿系统通过盐在水中的热诱导溶解度变化改变体积。 盐保持在刚性或不渗透性，柔性或多孔和柔性的外壳中。 同样条件变化和温度升高，一些盐进入溶液，由此导致的体积减少，其补偿由于钻孔中的温度升高引起的热诱导体积增加。 相反，钻孔温度的降低会使一些盐溶液溶解，以增加体积，以抵消相邻流体的体积减少，以保持压力稳定在封闭体积中。 在多孔外壳的实施例中，开口足够小以便甚至在溶液中保留盐。 然而，由于热效应的变化，预计压力补偿的最小净流量。

公开(公告)号：US20160281464A1

公开(公告)日：2016-09-29

申请号：US15176858

申请日：2016-06-08

Applicant: BAKER HUGHES INCORPORATED

Inventor： Ewoud J. Hulsewe ,  Edward T. Wood

IPC: E21B34/10 ,  E21B43/26

CPC classification number: E21B34/14 ,  E21B34/10 ,  E21B34/16 ,  E21B43/14 ,  E21B43/26 ,  E21B2034/005 ,  E21B2034/007

Abstract: Fracking ports are initially obstructed with respective biased sleeves that have an associated release device responsive to a unique signal. The signal can be electronic or magnetic and delivered in a ball or dart that is dropped or pumped past a sensor associated with each release device. Each sensor is responsive to a unique signal. When the signal is received the release device allows the bias to shift the sleeve to open the fracture port and to let a flapper get biased onto an associated seat. The flapper and seat are preferably made from a material that eventually disappears leaving an unobstructed flow path in the passage. The method calls for repeating the process in an uphole direction until the entire zone is fractured. The flapper and seat can dissolve or otherwise disappear with well fluids, thermal effects, or added fluids to the well.