公开(公告)号：US07234546B2

公开(公告)日：2007-06-26

申请号：US10405405

申请日：2003-04-02

申请人： Ray P. Vincent ,  Frank Koehrmann ,  George E. Givens ,  Christiaan D. Krauss ,  Edward T. Wood ,  Friedhelm Makohl ,  David B. Haughton

发明人： Ray P. Vincent ,  Frank Koehrmann ,  George E. Givens ,  Christiaan D. Krauss ,  Edward T. Wood ,  Friedhelm Makohl ,  David B. Haughton

IPC分类号： E21B7/20

CPC分类号： E21B33/14 ,  E21B7/208

摘要： A method and associated equipment are disclosed which allow drilling at least a portion of a well and subsequently cementing casing in a single trip. The method is particularly suited for deep-water offshore operations where the drill string can be run through a section of casing leaving a bit and an under-reamer extending out below. The casing is equipped with ports through which cement can be pumped as well as an external casing packer to prevent the uncured cement in the annulus from U-tubing. Several casing sections can be run in during drilling and cemented succession using the one trip method.

摘要翻译： 公开了一种方法和相关设备，其允许在单次行程中钻井和至少一个固井套管的至少一部分。 该方法特别适用于深水海上作业，其中钻柱可以穿过一部分套管留下一点，而下钻孔机延伸到下方。 外壳配备有可以泵送水泥的端口以及外部封隔器，以防止U型管中环形空隙中的未固化水泥。 使用一次行程方法可以在钻孔和粘结连续过程中运行几个套管段。

公开(公告)号：US06634428B2

公开(公告)日：2003-10-21

申请号：US09848532

申请日：2001-05-03

申请人： Christiaan D. Krauss ,  George Givens

发明人： Christiaan D. Krauss ,  George Givens

IPC分类号： E21B3414

CPC分类号： E21B34/108 ,  E21B34/14

摘要： A removable ball seat assembly is disclosed. It features a solid ball seat backed up by segmented dogs pinned to each other and mounted under the ball seat. Upon actuating a downhole tool with fluid pressure applied to a ball on the seat, the pressure is increased and the ball and seat move at a regulated rate. The dogs reach a recess and the ball moves through the seat. Subsequent, larger balls can pass through the seat, with the dogs in the recess, at much smaller pressure drops than the original ball.

公开(公告)号：US06241023B1

公开(公告)日：2001-06-05

申请号：US09439325

申请日：1999-11-12

申请人： Christiaan D. Krauss ,  David E. Hirth

发明人： Christiaan D. Krauss ,  David E. Hirth

IPC分类号： E21B2300

CPC分类号： E21B23/06

摘要： A dog sub is provided for use in an assembly for running liners with weight-set packers and/or other mechanically or hydraulically actuated devices that need to be located. The dogs are retained by a sleeve so that an applied pickup force to determine that the running string had released from the liner can be applied which even results in removal of the dog sub from the extension tube of the weight-set packer. The dogs are held in a retracted position, even if taken out of the extension tube initially. Thereafter, the dog sub is supported off the extension tube and the locking sleeve on the dogs is liberated, with the dogs inside the extension tube. A subsequent pickup force allows the dogs to move outwardly, whereupon a subsequent setdown force locates the dogs on the setting extension tube. A subsequent setdown force sets the packer and breaks a breakable member, such as a shear pin. Upon removal to the surface, surface personnel can see that a shear pin has broken to indicate that the requisite force has been applied to the weight-set packer.

摘要翻译： 提供了一种用于运行衬套的组件的配件，其具有重量定位封隔器和/或需要定位的其它机械或液压致动装置。 狗被套筒保持，从而可以应用施加的拾取力来确定运行的绳子已经从衬套释放，这甚至导致从配重封隔器的延伸管中去除狗。 即使从最初的延伸管中取出，狗也保持在收回位置。 此后，狗子从延伸管支撑，并且释放狗的锁定套筒，其中狗在延伸管内。 随后的拾取力允许狗向外移动，随后的下降力将狗定位在设定延伸管上。 随后的下放力设置封隔器并打破易碎构件，例如剪切销。 当拆卸到表面时，表面人员可以看到剪切销已经断裂，表明所需的力已经施加到重量组件封隔器。

公开(公告)号：US5477925A

公开(公告)日：1995-12-26

申请号：US351576

申请日：1994-12-06

申请人： Kevin O. Trahan ,  Rodney D. Bennett ,  John L. Baugh ,  Christiaan D. Krauss

发明人： Kevin O. Trahan ,  Rodney D. Bennett ,  John L. Baugh ,  Christiaan D. Krauss

IPC分类号： E21B33/14 ,  E21B41/00 ,  E21B43/14 ,  E21B7/04 ,  E21B29/06

CPC分类号： E21B41/0042 ,  E21B33/14 ,  E21B43/14

摘要： The present invention relates to art improved method for multilateral completion and cementing (e.g. sealing) the juncture between primary and lateral wellbores. The completion method of the present invention addresses the issue of cementation and sealing of junctures between vertical and lateral wellbores. It is desirable to have the ability to re-enter each lateral wellbore as well as maintain the option to perform any function that could be done in a single wellbore. For this reason, cemented and sealed lateral wellbores are desirable so that normal isolation, stimulation or any other operation can be achieved. The method allows sealing and reworking of either wellbores with single laterals or multiple laterals and provides safe durable junctions therebetween. The method of this invention utilizes a "hook" liner hanger system.

摘要翻译： 本发明涉及用于多边完井和固井（例如密封）初级和侧向井筒之间的接合处的改进方法。 本发明的完井方法解决了垂直和侧向井筒之间接合处的粘结和密封问题。 期望具有重新进入每个侧井筒的能力以及保持执行可以在单个井筒中进行的任何功能的选择。 因此，需要粘结和密封的侧面井眼，以便可以实现正常的隔离，刺激或任何其他操作。 该方法允许使用单个侧面或多个侧面的两个孔的密封和再加工，并且在它们之间提供安全的耐用接合。 本发明的方法利用了一种“挂钩”衬管系统。