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公开(公告)号：US20170234091A1
公开(公告)日：2017-08-17
申请号：US15041548
申请日：2016-02-11
IPC分类号： E21B23/04 , E21B23/06 , E21B33/12 , E21B47/14 , E21B34/10 , E21B34/06 , E21B33/134 , E21B47/12 , E21B34/16 , E21B23/01
CPC分类号： E21B34/063 , E21B34/10
摘要： A hydraulically operated downhole tool located at a depth where control line hydrostatic pressure would normally set the tool is temporarily isolated from hydrostatic pressure and changes thereto from well exposure or downhole operations until properly located. A removable barrier is placed in the control line to the tool at a height from the tool that limits the hydrostatic force exposed to the actuation mechanism for the tool. The preferred barrier is a rupture disc that is selectively broken with applied pressure from a remote location, typically the surface above the well. The mounting depth of the barrier can be varied to control the maximum hydrostatic pressure seen by the tool as it is advanced to the intended position.
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公开(公告)号：US09732579B2
公开(公告)日：2017-08-15
申请号：US14779338
申请日：2014-03-06
申请人： Vosstech AS
发明人： Espen Hiorth , Gudleik Klette , Stig Ove Bjorgum
CPC分类号： E21B33/12 , E21B33/1208 , E21B34/063
摘要： A disintegrable plug apparatus for use in connection with petroleum wells, especially during pressure testing of such petroleum wells. The plug apparatus has an outer housing surrounding at least one sealing device and a plurality of supporting bodies, where at least one of the supporting bodies is in engagement with a locking device for locking to a locking sleeve. After application of a predetermined pressure on the plug apparatus, the at least one supporting body and the at least one sealing device are permitted an axial movement such that the at least one sealing device is brought into contact with loading devices for disintegration of the at least one sealing device.
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公开(公告)号：US09708884B2
公开(公告)日：2017-07-18
申请号：US14741182
申请日：2015-06-16
IPC分类号： E21B33/134 , E21B43/263 , E21B34/06
CPC分类号： E21B33/134 , E21B34/063 , E21B43/263
摘要： An embodiment of an isolation member cooperates with an isolation member seat to isolate a well first portion of an earthen well drilled into the earth's crust from a well second portion and comprises an interior chamber to receive an explosive charge. The explosive charge may be surrounded by a filler material that is resistant to deformation. A pressure sensor, a circuit, and a battery are also received into the chamber. The isolation member material may comprise one of zirconium oxide, aluminum oxide, bulk metallic glass, silicon nitride or tungsten carbide, and the isolation member is resistant to deformation within the isolation member seat under the application of a substantial pressure differential across the isolation member and isolation member seat. Detonation of the explosive charge fragments the isolation member to prevent the isolation member from presenting an obstruction to subsequent well operations. A safety fuse may be included to enable safe handling and transport.
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74.发明申请公开(公告)号：US20170159418A1
公开(公告)日：2017-06-08
申请号：US15264064
申请日：2016-09-13
CPC分类号： E21B43/263 , E21B23/04 , E21B29/08 , E21B34/063 , E21B34/14 , E21B41/0078 , E21B43/114 , E21B43/14 , E21B43/25 , E21B43/26 , E21B43/267 , E21B2034/007
摘要： Wellbore tubulars including a plurality of selective stimulation ports and methods of utilizing the same are disclosed herein. The wellbore tubulars include a tubular body including an external surface and an internal surface that defines a tubular conduit. The wellbore tubulars also include a plurality of selective stimulation ports, and each selective stimulation port includes an SSP conduit and an isolation device that is configured to selectively transition from a closed state to an open state responsive to a shockwave having greater than a threshold shockwave intensity. The methods include methods of stimulating a subterranean formation utilizing the wellbore tubulars. The methods also include methods of re-stimulating the subterranean formation utilizing the wellbore tubulars.
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公开(公告)号：US09650866B2
公开(公告)日：2017-05-16
申请号：US14840473
申请日：2015-08-31
申请人： GEODynamics, Inc.
CPC分类号： E21B34/108 , E21B34/063 , E21B2034/007
摘要： An apparatus and method for providing a time delay in injection of pressured fluid into a geologic formation. The apparatus comprises a toe valve activated by fluid pressure that opens ports after a predetermined time interval to allow fluid to pass from a well casing to a formation. The controlled time delay enables casing integrity testing before fluid is passed through the ports. This time delay also allows multiple valves to be used in the same well casing and provide a focused jetting action to better penetrate a concrete casing lining.
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公开(公告)号：US20170130536A1
公开(公告)日：2017-05-11
申请号：US15320096
申请日：2015-06-24
申请人： SHELL OIL COMPANY
CPC分类号： E21B17/14 , E21B10/26 , E21B10/602 , E21B29/00 , E21B33/1204 , E21B34/063 , E21B43/103
摘要： A well casing or liner shoe (10) comprises a partially of fully openable central fluid channel (13) which is connected to at least one small width nozzle (46) and an additional large width fluid outlet (49), which is closed by a thin walled closure device arranged to open at a selected fluid overpressure in the fluid channel (13), and which has a flow area larger than each nozzle (46) to permit fluid circulation when the nozzles (46) are clogged and clearance of clogging debris through the additional large width additional fluid outlet (49).
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公开(公告)号：US09624750B2
公开(公告)日：2017-04-18
申请号：US13264948
申请日：2010-04-13
申请人： Pavlin B. Entchev , William A. Sorem , Zhihua Wang , David A. Baker , John K. Montgomery , Larry Mercer , Dennis H. Petrie
发明人： Pavlin B. Entchev , William A. Sorem , Zhihua Wang , David A. Baker , John K. Montgomery , Larry Mercer , Dennis H. Petrie
CPC分类号： E21B33/12 , E21B17/1078 , E21B29/00 , E21B34/063 , E21B37/00 , Y10T29/49796
摘要： A bridge plug arrangement includes a plug having an upper end and a bottom end. The bridge plug arrangement also optionally includes a cylindrical seat. The bridge plug arrangement further includes a tubular member. The tubular member may be part of a casing string. The tubular member is configured to receive the plug and, when used, the seat. The plug and/or the seat may be fabricated from a frangible material. Also disclosed is a method for diverting fluids in a wellbore using the bridge plug arrangement. The method may include landing the plug onto the seat within the wellbore below a subsurface zone of interest. Treatment fluids are then injected into the wellbore, where they are diverted through perforations and into a formation. The plug and/or seat is then optionally broken into a plurality of pieces through use of a downward mechanical force.
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公开(公告)号：US20170096878A1
公开(公告)日：2017-04-06
申请号：US15287990
申请日：2016-10-07
申请人： TEAM OIL TOOLS LP
CPC分类号： E21B34/10 , E21B33/13 , E21B34/063 , E21B34/102 , E21B34/108 , E21B2034/007
摘要： A smooth bore toe valve includes a first sub defining a through bore and a fluid flow path through a wall thereof; a second sub; a housing mechanically engaged with the first and second subs to define a valve cavity axially between the first and second subs and to define a chamber radially between the first and second subs and the housing, the housing further defining a plurality of openings in a wall thereof; and a sleeve disposed within the chamber between the housing and the first and second subs to close the openings and, upon application of fluid pressure horn the through bore through the fluid flow path, open the openings to fluid flow from the valve cavity to the exterior of the housing. A method for using such a valve is also disclosed.
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公开(公告)号：US09593542B2
公开(公告)日：2017-03-14
申请号：US13930683
申请日：2013-06-28
发明人： Donald Getzlaf , Marty Stromquist , John Ravensbergen , David Devlin , Doulgas Braden , Travis Harris
CPC分类号： E21B34/063 , E21B17/08 , E21B21/10 , E21B33/14
摘要： A rupture disc assembly and a float tool incorporating the rupture disc assembly is disclosed. The rupture disc assembly may include a rupture disc assembly comprising a rupture disc, an upper tubular portion and a lower tubular portion, and a securing mechanism for holding the rupture disc between the upper and lower tubular portions. A float tool for creating a buoyant chamber in a casing string may include the rupture disc assembly and a sealing device for sealing the lower end of the casing string, the buoyant, sealed chamber may be created there between. In operation, applied fluid pressure causes the rupture disc to move downward. The rupture disc may be shattered by contact with a surface on the lower tubular portion. Full casing internal diameter may be restored in the region where the rupture disc formerly sealed the casing.
摘要翻译： 公开了一种破裂盘组件和结合有破裂盘组件的浮动工具。 破裂盘组件可以包括破裂盘组件，其包括破裂盘，上部管状部分和下部管状部分，以及用于将破裂盘保持在上部和下部管状部分之间的固定机构。 用于在套管柱中产生浮力室的浮动工具可以包括破裂盘组件和用于密封套管柱的下端的密封装置，可以在其间形成浮力密封室。 在操作中，施加的流体压力导致破裂盘向下移动。 破裂盘可能通过与下管状部分上的表面的接触而破碎。 破裂盘以前密封外壳的区域可以恢复全套内径。
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公开(公告)号：US09580991B2
公开(公告)日：2017-02-28
申请号：US14116134
申请日：2012-03-15
申请人： Kristian Harestad , Helge Skorve , Magnar Tveiten
发明人： Kristian Harestad , Helge Skorve , Magnar Tveiten
CPC分类号： E21B34/06 , E21B34/063 , E21B34/102 , F16K3/0281 , Y10T137/1632
摘要： A shear valve (1) for use in a downhole tool between the annulus and tubing in a well comprises an outer housing (11) and an internal body (13) movable in a longitudinal direction within the housing when the valve is activated, and at least one obstruction device (16, 10) which can be arranged to obstruct the internal body from moving. The obstruction device is capable of being deactivated by pressure from the tubing side of the valve.
摘要翻译： 在井中的环形空间和管道之间的井下工具中使用的剪切阀（1）包括外部壳体（11）和内部主体（13），当阀门被启动时，可以在壳体内沿纵向方向移动，并且在 至少一个阻塞装置（16,10），其可被布置成阻碍内部体移动。 阻塞装置能够通过来自阀的管侧的压力而失活。
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