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1. 发明授权

US06481497B2 High temperature high pressure retrievable packer with barrel slip 有权
公开(公告)号：US06481497B2
公开(公告)日：2002-11-19
申请号：US10091753
申请日：2002-03-06
申请人： Loren C. Swor , Donald W. Winslow , Lee Wayne Stepp , Kenneth G. Neal , Phillip M. Starr
发明人： Loren C. Swor , Donald W. Winslow , Lee Wayne Stepp , Kenneth G. Neal , Phillip M. Starr
IPC分类号： E21B33129
CPC分类号： E21B23/01 , E21B33/1292
摘要： A high temperature, high pressure retrievable packer adapted for service under extreme operating conditions when the packer apparatus is held in the wellbore with a mechanical slip and a barrel slip. The barrel slip has a barrel slip body with a plurality of openings defined in the outer surface of the body. Cylindrical inserts are received in the openings. The cylindrical inserts define upward facing and downward facing gripping edges that will engage casing when the barrel slip body is radially expanded. The inserts are preferably tungsten carbide inserts. A sufficient number of inserts are included along the length and around the circumference of the barrel slip so that the barrel slip can get a good grip in the casing wall. Separate metals may be used for the barrel slip body and the inserts so that a higher yield strength alloy steel may be utilized than is possible with other barrel slip arrangements.

2. 发明授权

US06378606B1 High temperature high pressure retrievable packer with barrel slip 有权
公开(公告)号：US06378606B1
公开(公告)日：2002-04-30
申请号：US09613857
申请日：2000-07-11
申请人： Loren C. Swor , Donald W. Winslow , Lee Wayne Stepp , Kenneth G. Neal , Phillip M. Starr
发明人： Loren C. Swor , Donald W. Winslow , Lee Wayne Stepp , Kenneth G. Neal , Phillip M. Starr
IPC分类号： E21B2301
CPC分类号： E21B23/01 , E21B33/1292
摘要： A high temperature, high pressure retrievable packer adapted for service under extreme operating conditions when the packer apparatus is held in the wellbore with a mechanical slip and a barrel slip. The barrel slip has a barrel slip body with a plurality of openings defined in the outer surface of the body. Cylindrical inserts are received in the openings. The cylindrical inserts define upward facing and downward facing gripping edges that will engage casing when the barrel slip body is radially expanded. The inserts are preferably tungsten carbide inserts. A sufficient number of inserts are included along the length and around the circumference of the barrel slip so that the barrel slip can get a good grip in the casing wall. Separate metals may be used for the barrel slip body and the inserts so that a higher yield strength alloy steel may be utilized than is possible with other barrel slip arrangements.

3. 发明授权

US06318460B1 Retrievable high pressure, high temperature packer apparatus with anti-extrusion system and method 有权
标题翻译：可回收的高压，高温封隔器设备，具有抗挤压系统和方法
公开(公告)号：US06318460B1
公开(公告)日：2001-11-20
申请号：US09574809
申请日：2000-05-19
申请人： Loren C. Swor , Lee Wayne Stepp , Donald W. Winslow
发明人： Loren C. Swor , Lee Wayne Stepp , Donald W. Winslow
IPC分类号： E21B331295
CPC分类号： E21B33/1216 , E21B33/1293
摘要： A packer apparatus for sealing between a tubing string and a casing in a wellbore is disclosed. The packer apparatus includes a seal assembly disposed about a packer mandrel. Upper and lower seal wedges are disposed about the packer mandrel above and below the seal assembly and may be inserted between the seal assembly and the packer mandrel to radially expand the seal assembly into engagement with the casing. The seal assembly includes an expandable elastomeric seal element having anti-extrusion bridge elements disposed in recesses at the upper and lower ends thereof. The anti-extrusion elements form an almost complete circle and thus are arcuately shaped having first and second ends with a gap therebetween. The anti-extrusion bridge elements are preferably automatically radially retractable elements so that when the seal wedges are removed from between the seal assembly and the packer mandrel, the automatically radially retractable anti-extrusion elements will apply a radially inwardly directed force sufficient to cause the seal assembly to radially retract and close around the packer mandrel.
摘要翻译：公开了一种用于在井眼中的油管柱和壳体之间进行密封的封隔器。封隔器装置包括围绕封隔器心轴设置的密封组件。上密封楔和下密封楔设置在密封组件上方和下方的封隔器心轴周围，并且可以插入在密封组件和封隔器心轴之间，以将密封组件径向扩张以与壳体接合。密封组件包括可膨胀弹性体密封元件，其具有设置在其上端和下端的凹部中的抗挤压桥接元件。抗挤压元件形成几乎完整的圆形，因此是弧形的，其具有第一和第二端之间的间隙。抗挤压桥接元件优选地是自动径向缩回元件，使得当密封楔从密封组件和封隔器芯轴之间移除时，自动径向可缩回的抗挤压元件将施加足以引起密封的径向向内的力组件围绕封隔器心轴径向缩回和关闭。

4. 发明授权

US6102117A Retrievable high pressure, high temperature packer apparatus with anti-extrusion system 失效
标题翻译：可回收高压，高温封隔器设备，具有抗挤压系统
公开(公告)号：US6102117A
公开(公告)日：2000-08-15
申请号：US83304
申请日：1998-05-22
申请人： Loren C. Swor , Lee Wayne Stepp , Donald W. Winslow
发明人： Loren C. Swor , Lee Wayne Stepp , Donald W. Winslow
IPC分类号： E21B33/12 , E21B33/129
CPC分类号： E21B33/1216 , E21B33/1293
摘要： A packer apparatus for sealing between a tubing string and a casing in a wellbore is disclosed. The packer apparatus includes a seal assembly disposed about a packer mandrel. Upper and lower seal wedges are disposed about the packer mandrel above and below the seal assembly and may be inserted between the seal assembly and the packer mandrel to radially expand the seal assembly into engagement with the casing. The seal assembly includes an expandable elastomeric seal element having anti-extrusion bridge elements disposed in recesses at the upper and lower ends thereof. The anti-extrusion elements form an almost complete circle and thus are arcuately shaped having first and second ends with a gap therebetween. The anti-extrusion bridge elements are preferably automatically radially retractable elements so that when the seal wedges are removed from between the seal assembly and the packer mandrel, the automatically radially retractable anti-extrusion elements will apply a radially inwardly directed force sufficient to cause the seal assembly to radially retract and close around the packer mandrel.
摘要翻译：公开了一种用于在井眼中的油管柱和壳体之间进行密封的封隔器。封隔器装置包括围绕封隔器心轴设置的密封组件。上密封楔和下密封楔设置在密封组件上方和下方的封隔器心轴周围，并且可以插入在密封组件和封隔器心轴之间，以将密封组件径向扩张以与壳体接合。密封组件包括可膨胀弹性体密封元件，其具有设置在其上端和下端的凹部中的抗挤压桥接元件。抗挤压元件形成几乎完整的圆形，因此是弧形的，其具有第一和第二端之间的间隙。抗挤压桥接元件优选地是自动径向缩回元件，使得当密封楔从密封组件和封隔器芯轴之间移除时，自动径向可缩回的抗挤压元件将施加足以引起密封的径向向内的力组件围绕封隔器心轴径向缩回和关闭。

5. 发明授权

US07048066B2 Downhole sealing tools and method of use 失效
标题翻译：井下密封工具及使用方法
公开(公告)号：US07048066B2
公开(公告)日：2006-05-23
申请号：US10268439
申请日：2002-10-09
申请人： Paul D. Ringgenberg , Gregory W. Vargus , Lee Wayne Stepp , Donald R. Smith , Ronald L. Hinkie , Don S. Folds
发明人： Paul D. Ringgenberg , Gregory W. Vargus , Lee Wayne Stepp , Donald R. Smith , Ronald L. Hinkie , Don S. Folds
IPC分类号： E21B33/12
CPC分类号： E21B33/1294 , E21B33/1285
摘要： A downhole tool apparatus for insertion into and sealing engagement with a wellbore. The downhole tool includes upper and lower casing engaging members and an intervening sealing member. In one aspect the intervening sealing member may be a deformable material. In another aspect, the intervening sealing member may be a flowable material cured in the well bore.
摘要翻译：一种井下工具装置，用于插入和密封与井眼接合。井下工具包括上下壳体接合构件和中间密封构件。在一个方面，中间密封构件可以是可变形材料。在另一方面，中间密封构件可以是在井眼中固化的可流动材料。

6. 发明授权

US07234517B2 System and method for sensing load on a downhole tool 失效
标题翻译：用于感测井下工具上的载荷的系统和方法
公开(公告)号：US07234517B2
公开(公告)日：2007-06-26
申请号：US10769121
申请日：2004-01-30
申请人： Steven G. Streich , Roger L. Schultz , James C. Tucker , Lee Wayne Stepp , Phillip M. Starr
发明人： Steven G. Streich , Roger L. Schultz , James C. Tucker , Lee Wayne Stepp , Phillip M. Starr
IPC分类号： E21B47/00 , E21B43/00
CPC分类号： E21B33/12 , E21B47/0006
摘要： A system and method for determining load on a downhole tool according to which one or more sensors are embedded in one or more components of the tool or in a material on one or more of the components. The sensors are adapted to sense load on the components.
摘要翻译：一种用于确定井下工具上的载荷的系统和方法，根据该负载，一个或多个传感器嵌入在所述工具的一个或多个部件中或者在一个或多个部件上的材料中。传感器适用于感测组件上的负载。

7. 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。

8. 发明授权

US06966386B2 Downhole sealing tools and method of use 失效
标题翻译：井下密封工具及使用方法
公开(公告)号：US06966386B2
公开(公告)日：2005-11-22
申请号：US10268531
申请日：2002-10-09
申请人： Paul D. Ringgenberg , Gregory W. Vargus , Lee Wayne Stepp , Donald R. Smith , Ronald L. Hinkie , Don S. Folds
发明人： Paul D. Ringgenberg , Gregory W. Vargus , Lee Wayne Stepp , Donald R. Smith , Ronald L. Hinkie , Don S. Folds
IPC分类号： E21B33/128 , E21B33/1295 , E21B33/134 , E21B33/127
CPC分类号： E21B33/1285 , E21B33/12 , E21B33/128 , E21B33/1295 , E21B33/134 , E21B43/103
摘要： A downhole tool apparatus for insertion into and sealing engagement with a wellbore. The apparatus comprises a tube having an expandable diameter, and a gripping member joined to the tube adapted to engage a portion of the wellbore to limit movement of the tube within the wellbore. The tube may also include a sealing member adapted to mate with the wellbore to form a sealing engagement.
摘要翻译：一种井下工具装置，用于插入和密封与井眼接合。该装置包括具有可扩张直径的管，以及连接到管的夹紧构件，其适于接合井眼的一部分以限制管在井筒内的运动。管还可以包括适于与井筒配合以形成密封接合的密封构件。

9. 发明授权

US06666266B2 Screw-driven wellhead isolation tool 失效
标题翻译：螺杆驱动井口隔离工具
公开(公告)号：US06666266B2
公开(公告)日：2003-12-23
申请号：US10138544
申请日：2002-05-03
申请人： Phillip M. Starr , Don S. Folds , Lee Wayne Stepp
发明人： Phillip M. Starr , Don S. Folds , Lee Wayne Stepp
IPC分类号： E21B1900
CPC分类号： E21B33/02
摘要： A wellhead isolation tool comprises a threaded drive rod coaxially aligned with a tubular mandrel having a smooth outer surface. A motor displaces the threaded drive rod vertically without rotating the drive rod to move the tubular mandrel through a wellhead into a tubular element in a well. The lower end of the tubular mandrel will sealingly engage the tubular element in the well so that treating fluids or other substances such as, but not limited to, chemicals and erosive flows, can be displaced therethrough at high pressures into the well to fracture or otherwise treat the well without damaging the wellhead.
摘要翻译：井口隔离工具包括与具有光滑外表面的管状心轴同轴对准的螺纹驱动杆。电动机垂直地移动螺纹驱动杆而不旋转驱动杆，以将管状心轴通过井口移动到井中的管状元件中。管状心轴的下端将密封地接合井中的管状元件，使得处理流体或其它物质，例如但不限于化学物质和侵蚀性流动，可以在高压下穿过其中进入孔以破裂或以其他方式治疗井而不破坏井口。

10. 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.

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