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1. 发明授权

US5207274A Apparatus and method of anchoring and releasing from a packer 失效
标题翻译：从封隔器固定和释放的装置和方法
公开(公告)号：US5207274A
公开(公告)日：1993-05-04
申请号：US744192
申请日：1991-08-12
申请人： Steven G. Streich , Kevin T. Berscheidt
发明人： Steven G. Streich , Kevin T. Berscheidt
IPC分类号： E21B17/06 , E21B23/06
CPC分类号： E21B17/06 , E21B23/06
摘要： An apparatus and method of anchoring into a packer with a stinger assembly is disclosed. Further, an apparatus and method of releasing from a packer is also disclosed. The apparatus includes an elongated stinger member, a plurality of collet finger members slidably attached to the stinger, a shear ring member with a chamfered shoulder containing a plurality of splined extensions, with a plurality of shear pins contained through the shear ring member. Further, the apparatus includes a load ring attached to the elongated stinger for transferring the load of the downhole tool from the collet finger members to the load ring.
摘要翻译：公开了一种用托管架组件固定到封隔器中的装置和方法。此外，还公开了一种从封隔器释放的装置和方法。该装置包括细长的托管构件，可滑动地附接到托管架的多个夹头构件，具有包含多个花键延伸部的倒角肩部的剪切环构件，多个剪切销通过剪切环构件包含。此外，该装置包括附接到细长托管架的负载环，用于将井下工具的负载从夹头构件传递到负载环。

2. 发明授权

US5224540A Downhole tool apparatus with non-metallic components and methods of drilling thereof 失效
标题翻译：具有非金属部件的井下工具装置及其钻孔方法
公开(公告)号：US5224540A
公开(公告)日：1993-07-06
申请号：US883619
申请日：1992-05-12
申请人： Steven G. Streich , Donald F. Hushbeck , Kevin T. Berscheidt , Rick D. Jacobi
发明人： Steven G. Streich , Donald F. Hushbeck , Kevin T. Berscheidt , Rick D. Jacobi
IPC分类号： E21B29/00 , E21B33/12 , E21B33/129
CPC分类号： E21B29/00 , E21B33/1204 , E21B33/1293 , E21B33/1294
摘要： A downhole tool apparatus and methods of drilling the apparatus. The apparatus may include, but is not limited to, packers and bridge plugs utilizing non-metallic slip components. The non-metallic material may include engineering grade plastics. In one embodiment, the slips are separate and held in place in an initial position around the slip wedge by a retainer ring. In another embodiment, the slips are integrally formed with a ring portion which holds the slips in the initial position around the wedge; in this embodiment, the ring portion is made of a fracturable non-metallic material which fractures during a setting operation to separate the slips. Methods of drilling out the apparatus without significant variations in the drilling speed and weight applied to the drill bit may be employed. Alternative drill bit types, such as polycrystalline diamond compact (PDC) bits may also be used.
摘要翻译：井下工具装置及其钻孔方法。该设备可以包括但不限于使用非金属滑动部件的封隔器和桥塞。非金属材料可以包括工程级塑料。在一个实施例中，滑块是分离的，并通过保持环在起始位置处保持在初始位置。在另一个实施例中，滑块一体地形成有将滑块保持在围绕楔的初始位置的环部分; 在该实施例中，环形部分由可分解的非金属材料制成，在设置操作期间，在分离滑动件时，该非金属材料会断裂。可以采用钻孔设备的方法，而不会对施加在钻头上的钻孔速度和重量有显着变化。还可以使用替代的钻头类型，例如多晶金刚石（PDC）钻头。

3. 发明授权

US5271468A Downhole tool apparatus with non-metallic components and methods of drilling thereof 失效
标题翻译：具有非金属部件的井下工具装置及其钻孔方法
公开(公告)号：US5271468A
公开(公告)日：1993-12-21
申请号：US719740
申请日：1991-06-21
申请人： Steven G. Streich , Donald F. Hushbeck , Kevin T. Berscheidt , Rick D. Jacobi
发明人： Steven G. Streich , Donald F. Hushbeck , Kevin T. Berscheidt , Rick D. Jacobi
IPC分类号： E21B29/00 , E21B33/12 , E21B33/129
CPC分类号： E21B29/00 , E21B33/1204 , E21B33/1293 , E21B33/1294
摘要： A downhole tool apparatus and methods of drilling the apparatus. The apparatus may include, but is not limited to, packers and bridge plugs utilizing non-metallic components. The material may include engineering grade plastics. The nonmetallic components may include but are not limited to the center mandrel, slips, slip wedges, slip supports and housings, spacer rings, valve housings and valve components. Methods of drilling out the apparatus without significant variations in the drilling speed and weight applied to the drill bit may be employed. Alternative drill bit types, such as polycrystalline diamond compact (PDC) bits may also be used.
摘要翻译：井下工具装置及其钻孔方法。该装置可以包括但不限于使用非金属部件的封隔器和桥塞。该材料可能包括工程级塑料。非金属部件可以包括但不限于中心心轴，滑动件，滑动楔形件，滑动支撑件和壳体，间隔环，阀壳体和阀部件。可以采用钻孔设备的方法，而不会对施加在钻头上的钻孔速度和重量有显着变化。还可以使用替代的钻头类型，例如多晶金刚石（PDC）钻头。

4. 发明授权

US06666275B2 Bridge plug 失效
公开(公告)号：US06666275B2
公开(公告)日：2003-12-23
申请号：US09922179
申请日：2001-08-02
申请人： Kenneth G. Neal , Kevin T. Berscheidt , Don S. Folds , Ronald L. Hinkie , Loren C. Swor , Brian K. Wilkinson
发明人： Kenneth G. Neal , Kevin T. Berscheidt , Don S. Folds , Ronald L. Hinkie , Loren C. Swor , Brian K. Wilkinson
IPC分类号： E21B4312
CPC分类号： E21B33/134 , E21B34/12
摘要： A retrievable bridge plug assembly having an internal “pump through” bypass passage and a wedge assembly, slips and seals disposed thereon. A retrieving tool is provided for running, setting, releasing and retrieving the bridge plug assembly. A tubing sensor is included to prevent setting of the bridge plug assembly in improper size tubing. When the bridge plug is properly located, the wedge assembly can actuated by manipulation of the retrieving tool to force the slips radially outward into gripping engagement with the well tubular and to force the seals into sealing engagement with the well tubular. A ball valve on the bridge plug assembly is movable to selectively open and close the bypass passage. The retrieving tool can maintain the valve and passageway open to facilitate circulation during run in and setting and also open during retrieving for pressure equalization. A service packer can be connected to and run with the bridge plug assembly.

5. 发明授权

US06394180B1 Frac plug with caged ball 有权
公开(公告)号：US06394180B1
公开(公告)日：2002-05-28
申请号：US09614897
申请日：2000-07-12
申请人： Kevin T. Berscheidt , Donald R. Smith , Lee Wayne Stepp , Don S. Folds , Gregory W. Vargus
发明人： Kevin T. Berscheidt , Donald R. Smith , Lee Wayne Stepp , Don S. Folds , Gregory W. Vargus
IPC分类号： E21B3312
CPC分类号： E21B33/12 , E21B33/128 , E21B33/1294
摘要： A downhole tool for sealing a wellbore. The downhole tool includes a packer with a ball seat defined therein. A sealing ball is carried with the packer into the well. The movement of the sealing ball away from the ball seat is limited by a ball cage which is attached to the upper end of the packer. The ball cage has a plurality of ports therethrough for allowing flow into the ball cage and through the packer at certain flow rates. A spring is disposed in a longitudinal opening of the packer and engages the sealing ball to prevent the sealing ball from engaging the ball seat until a predetermined flow rate is reached. When the packer is set in the hole, flow through the frac plug below a predetermined flow rate is permitted. Once a predetermined flow rate in the well is reached, a spring force of the spring will be overcome and the sealing ball will engage the ball seat so that no flow through the frac plug is permitted.

6. 发明授权

US5984007A Chip resistant buttons for downhole tools having slip elements 失效
标题翻译：具有滑动元件的井下工具的耐芯片按钮
公开(公告)号：US5984007A
公开(公告)日：1999-11-16
申请号：US5635
申请日：1998-01-09
申请人： Yusheng Yuan , Douglas W. Davison , Kevin T. Berscheidt
发明人： Yusheng Yuan , Douglas W. Davison , Kevin T. Berscheidt
IPC分类号： E21B33/12 , E21B33/129 , E21B23/00
CPC分类号： E21B33/1208 , E21B33/1204 , E21B33/1293
摘要： A slip element installable about a downhole tool apparatus for use in anchoring a downhole tool in a wellbore. The slip element has at least one slip button made of a metallic-ceramic composite material comprising an effective percentage by weight of a preselected titanium compound. The composite makes the slip button resistant to chipping upon setting but has favorable drillability characteristics upon drilling the downhole tool from a wellbore. The slip element may include at least one slip element made of a non-metallic material such as a laminated nonmetallic composite material. Preferably at least one slip button is made of a metallic-ceramic composite material comprising less than about 75 percent by weight of titanium carbide having a density ranging between about 5 to 7 grams per cubic centimeter. Preferably, the slip button is cylindrically shaped and is installed in at least one slip element at a preselected angle and extends outwardly at a preselected distance from a face of the slip element.
摘要翻译：围绕井下工具装置安装的滑动元件，用于将井下工具锚定在井眼中。滑动元件具有由金属 - 陶瓷复合材料制成的至少一个滑动按钮，其包含有效重量的预选钛化合物。复合材料使得滑动按钮在设置时耐碎裂，但是在从井筒钻井下工具时具有良好的钻孔特性。滑动元件可以包括由诸如层压的非金属复合材料之类的非金属材料制成的至少一个滑动元件。优选地，至少一个滑扣由金属陶瓷复合材料制成，其包含小于约75重量％的密度在约5至7克/立方厘米之间的碳化钛。优选地，滑动按钮是圆柱形的，并且以预定角度安装在至少一个滑动元件中，并且以与滑动元件的表面预选的距离向外延伸。

7. 发明授权

US5669448A Overbalance perforating and stimulation method for wells 失效
标题翻译：井的平衡穿孔和刺激方法
公开(公告)号：US5669448A
公开(公告)日：1997-09-23
申请号：US569822
申请日：1995-12-08
申请人： James W. Minthorn , Kevin T. Berscheidt , Brian R. White , Ronald E. Savage , Merlin F. Anderson , Dudley Vann , Flint Raymond George , Joseph A. Henke , Joseph M. Prudhomme
发明人： James W. Minthorn , Kevin T. Berscheidt , Brian R. White , Ronald E. Savage , Merlin F. Anderson , Dudley Vann , Flint Raymond George , Joseph A. Henke , Joseph M. Prudhomme
IPC分类号： E21B33/12 , E21B33/129 , E21B34/06 , E21B43/116 , E21B43/26
CPC分类号： E21B43/116 , E21B33/12 , E21B33/1293 , E21B33/1294 , E21B34/063 , E21B43/26
摘要： A method of stimulating a well subsequent to the formation of perforations whereby, subsequent to the perforating, pressure is suddenly applied to the perforations at a pressure above the fracturing pressure to extend created fractures in the formation. A bridging means is utilized to isolate the upper portion of the casing from a lower portion having perforations. The casing above the bridging means is charged with a stimulation fluid. At a predetermined pressure the bridging means releases the stimulation fluid into contact with the perforations to substantially simultaneously create or initiate a fracture into the formation from each perforation.
摘要翻译：在形成穿孔之后刺激井的方法，由此在穿孔之后，在压力高于压裂压力的压力下突然施加压力以延长地层中产生的裂缝。桥接装置用于将壳体的上部与具有穿孔的下部分离。在桥接装置上方的壳体装有刺激流体。在预定压力下，桥接装置释放刺激流体与穿孔接触，以基本上同时从每个穿孔产生或引发到地层的破裂。

8. 发明授权

US5390737A Downhole tool with sliding valve 失效
标题翻译：带滑阀的井下工具
公开(公告)号：US5390737A
公开(公告)日：1995-02-21
申请号：US99690
申请日：1993-07-29
申请人： Ricky D. Jacobi , Kevin T. Berscheidt , Donald F. Hushbeck
发明人： Ricky D. Jacobi , Kevin T. Berscheidt , Donald F. Hushbeck
IPC分类号： E21B29/00 , E21B33/12 , E21B33/129 , E21B23/00 , E21B33/128 , E21B34/14
CPC分类号： E21B29/00 , E21B33/1204 , E21B33/1293 , E21B33/1294
摘要： A downhole tool apparatus and methods of drilling the apparatus. The apparatus may include, but is not limited to, packers and bridge plugs utilizing non-metallic components. The non-metallic components may include but are not limited to the center mandrel having an unmachined, molded central opening therethrough. In a preferred embodiment, a sliding valve is disposed on an outer surface of the center mandrel for opening and closing a valve port. An overshot is used to selectively actuate the sliding valve. Methods of installation and drilling out of the apparatus are also disclosed.
摘要翻译：井下工具装置及其钻孔方法。该装置可以包括但不限于使用非金属部件的封隔器和桥塞。非金属部件可以包括但不限于具有未加工的模制的中心开口的中心心轴。在优选实施例中，滑阀设置在中心心轴的外表面上，用于打开和关闭阀口。使用过冲来选择性地致动滑阀。还公开了安装和钻出设备的方法。

9. 发明授权

US5343954A Apparatus and method of anchoring and releasing from a packer 失效
标题翻译：从封隔器固定和释放的装置和方法
公开(公告)号：US5343954A
公开(公告)日：1994-09-06
申请号：US971185
申请日：1992-11-03
申请人： J. Tad Bohlen , Donald R. Smith , Kevin T. Berscheidt
发明人： J. Tad Bohlen , Donald R. Smith , Kevin T. Berscheidt
IPC分类号： E21B23/06 , E21B33/129 , E21B23/00
CPC分类号： E21B33/1293 , E21B23/06
摘要： An apparatus and method of anchoring a work string to a packer set in a wellbore and releasing therefrom. The apparatus includes a stinger, a collet slidably disposed on the stinger and having a plurality of collet fingers adapted for engaging the packer, a shear ring member shearably attached to the stringer and adapted for holding the collet fingers into engagement with the packer. The packer may be normally released by applying torque to the work string such that the collet fingers are unthreaded from the packer. Torque is applied from the stinger to the collet fingers by a load ring attached to the stinger and having splines extending between the collet fingers so that torque may be applied to the collet without applying torque to the shear ring member. In the event that rotation is not possible, tension applied to the work string and the stinger will cause the shear ring member to be shearably released from the stinger so that the collet fingers may be pulled longitudinally and thereby disengaged from the packer. A method of use of the apparatus is also disclosed.
摘要翻译：将工作串固定在井筒中的封隔器上并将其释放的装置和方法。该装置包括一个托管架，一个可滑动地设置在托管架上并具有适于接合封隔器的多个夹头的夹头，一个剪切环构件，可剪切地连接到纵梁上，并适于夹紧夹头与封隔器接合。打包机通常可以通过向工作串施加扭矩来松开，使得夹头从封隔器上脱开。通过安装在托管架上的负载环将锭子施加到夹头上，并且具有在夹头之间延伸的花键，使得可以在不向剪切环构件施加扭矩的情况下将扭矩施加到夹头。在无法旋转的情况下，施加到工作线和托管架上的张力将导致剪切环构件从托管架上被可剪切地释放，使得夹头可以被纵向拉伸，从而与封隔器脱离接合。还公开了该装置的使用方法。

10. 发明授权

US06491116B2 Frac plug with caged ball 有权
标题翻译： Frac插头与笼子球
公开(公告)号：US06491116B2
公开(公告)日：2002-12-10
申请号：US10104547
申请日：2002-03-23
申请人： Kevin T. Berscheidt , Donald R. Smith , Lee Wayne Stepp , Don S. Folds , Gregory W. Vargus
发明人： Kevin T. Berscheidt , Donald R. Smith , Lee Wayne Stepp , Don S. Folds , Gregory W. Vargus
IPC分类号： E21B1104
CPC分类号： E21B33/12 , E21B33/128 , E21B33/1294
摘要： A downhole tool for sealing a wellbore. The downhole tool includes a packer with a ball seat defined therein. A sealing ball is carried with the packer into the well. The movement of the sealing ball away from the ball seat is limited by a ball cage which is attached to the upper end of the packer. The ball cage has a plurality of ports therethrough for allowing flow into the ball cage and through the packer at certain flow rates. A spring is disposed in a longitudinal opening of the packer and engages the sealing ball to prevent the sealing ball from engaging the ball seat until a predetermined flow rate is reached. When the packer is set in the hole, flow through the frac plug below a predetermined flow rate is permitted. Once a predetermined flow rate in the well is reached, a spring force of the spring will be overcome and the sealing ball will engage the ball seat so that no flow through the frac plug is permitted.
摘要翻译：用于密封井筒的井下工具。井下工具包括限定在其中的球座的封隔器。密封球与封隔器携带进井中。密封球远离球座的运动受到安装在封隔器上端的球笼的限制。球笼具有多个通过其的孔口，用于允许以一定的流量流入球笼并通过封隔器。弹簧设置在封隔器的纵向开口中并与密封球接合，以防止密封球与球座接合直到达到预定的流量。当封隔器设置在孔中时，允许以预定的流量流过压裂塞。一旦达到井中的预定流量，弹簧的弹簧力将被克服，并且密封球将接合球座，使得不允许通过压裂塞的流动。

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