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1. 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.

2. 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。

3. 发明授权

US07168494B2 Dissolvable downhole tools 有权
标题翻译：可溶性井下工具
公开(公告)号：US07168494B2
公开(公告)日：2007-01-30
申请号：US10803662
申请日：2004-03-18
申请人： Philip M. Starr , Loren C. Swor , Don S. Folds
发明人： Philip M. Starr , Loren C. Swor , Don S. Folds
IPC分类号： E21B37/00
CPC分类号： E21B33/12 , E21B33/134
摘要： A disposable downhole tool comprises a material that dissolves when exposed to a chemical solution, an ultraviolet light, a nuclear source, or a combination thereof. In an embodiment, the material comprises an epoxy resin, a fiberglass, or a combination thereof. In another embodiment, the material comprises a fiberglass and a binding agent. The material may also be customized to achieve a desired dissolution rate of the tool. In an embodiment, the disposable downhole tool further comprises an enclosure for storing the chemical solution. The tool may also comprise an activation mechanism for releasing the chemical solution from the enclosure. In an embodiment, the disposable downhole tool is a frac plug. In another embodiment, the tool is a bridge plug. In yet another embodiment, the tool is a packer.
摘要翻译：一次性井下工具包括当暴露于化学溶液，紫外光，核源或其组合时溶解的材料。在一个实施方案中，该材料包括环氧树脂，玻璃纤维或其组合。在另一个实施方案中，该材料包括玻璃纤维和粘合剂。材料也可以被定制以实现所需工具的溶解速率。在一个实施例中，一次性井下工具还包括用于存储化学溶液的外壳。工具还可以包括用于将化学溶液从外壳释放的激活机构。在一个实施例中，一次性井下工具是压裂塞。在另一个实施例中，该工具是桥塞。在另一个实施例中，该工具是封隔器。

4. 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。

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

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。

7. 发明授权

US07195067B2 Method and apparatus for well perforating 有权
标题翻译：井眼穿孔的方法和装置
公开(公告)号：US07195067B2
公开(公告)日：2007-03-27
申请号：US10910058
申请日：2004-08-03
申请人： Kevin R. Manke , Matthew T. Howell , Don S. Folds
发明人： Kevin R. Manke , Matthew T. Howell , Don S. Folds
IPC分类号： E21B43/11
CPC分类号： E21B43/114 , E21B29/00
摘要： Apparatus for cutting openings in a wall of a well. The apparatus includes a mandrel with a jetting sleeve slidably disposed about the mandrel. The mandrel has a plurality of slots defined therein and the jetting sleeve has a plurality of jetting openings aligned with the slots so that fluid will pass through the mandrel, the slots in the mandrel, and the jetting openings. The jetting nozzles are received in the jetting openings and travel in the slots in the mandrel. The flow of jetting fluid through the mandrel causes the jetting sleeve to move on the mandrel so that slots may be cut in the wall of the well.
摘要翻译：用于在井壁上切割开口的装置。该设备包括具有可围绕心轴可滑动地设置的喷射套筒的心轴。心轴具有限定在其中的多个槽，并且喷射套筒具有与槽对准的多个喷射孔，使得流体将穿过心轴，心轴中的槽和喷射孔。喷射喷嘴被容纳在喷射开口中并且在心轴中的狭槽中移动。喷射流体通过心轴的流动导致喷射套筒在心轴上移动，使得槽可以在井的壁中切割。

8. 发明授权

US06896061B2 Multiple zones frac tool 失效
$Multiple zones frac tool$
标题翻译：多区域压裂工具
公开(公告)号：US06896061B2
公开(公告)日：2005-05-24
申请号：US10116572
申请日：2002-04-02
申请人： Iosif J. Hriscu , Don S. Folds , Gregory W. Vargus , Thomas W. Hawkins , John T. Brandell
发明人： Iosif J. Hriscu , Don S. Folds , Gregory W. Vargus , Thomas W. Hawkins , John T. Brandell
IPC分类号： E21B23/06 , E21B33/124 , E21B43/12
CPC分类号： E21B23/06 , E21B33/124
摘要： A device and a method are provided for the hydraulic fracturing of multiple zones in a well bore. A stinger carries a plurality of packers into a well bore. Each packer is separably connected to each adjacent packer. As each packer is sequentially secured in the well bore, the stinger is withdrawn from the secured packer and the process is repeated as the remaining packers are sequentially secured and separated.
摘要翻译：提供了一种用于井筒中多个区域的水力压裂的装置和方法。托管架将多个封隔器运送到井眼中。每个封隔器可分离地连接到每个相邻的封隔器。当每个封隔器依次固定在井眼中时，将托管架从安全的封隔器中取出，并且重复该过程，因为依次固定和分离剩余的封隔器。

9. 发明授权

US06976534B2 Slip element for use with a downhole tool and a method of manufacturing same 有权
公开(公告)号：US06976534B2
公开(公告)日：2005-12-20
申请号：US10673818
申请日：2003-09-29
申请人： Mike H. Sutton , Donald W. Winslow , Donald R. Smith , Don S. Folds
发明人： Mike H. Sutton , Donald W. Winslow , Donald R. Smith , Don S. Folds
IPC分类号： E21B33/129 , E21B23/00
CPC分类号： E21B33/129 , Y10T428/24994
摘要： A slip element and a method of manufacturing same according to which two or more inserts are placed in corresponding openings formed in a body member. The material forming the insert in one of the openings is stronger than the material forming the insert in another of the openings.

10. 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。

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