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1. 发明授权

US06789627B2 Control line cutting tool and method 有权
标题翻译：控制线切割工具及方法
公开(公告)号：US06789627B2
公开(公告)日：2004-09-14
申请号：US09839187
申请日：2001-04-19
申请人： Dwayne D. Leismer
发明人： Dwayne D. Leismer
IPC分类号： E21B1706
CPC分类号： E21B29/04
摘要： An apparatus includes a first member, a second member releasably attached to the first member, and a control line shear mechanism disposed proximate an interface between the first member and the second member. The first and second members can each have a longitudinal bore therethrough and can be moveable in an axial direction to release from one another. The control line shear mechanism may comprise a first shear member attached to the first number and a second shear member attached to the second member, wherein the first and second shear members are adapted to cooperatively shear a control line as the first and second members separate. A method includes separating a first member from a second member and, before or during the separating step, cutting a control line proximal to the paint of separation of the first and second members.
摘要翻译：一种装置包括第一构件，可释放地附接到第一构件的第二构件以及设置在第一构件和第二构件之间的界面附近的控制线剪切机构。第一和第二构件各自可以具有穿过其中的纵向孔，并且可沿轴向方向移动以彼此释放。控制线剪切机构可以包括附接到第一编号的第一剪切构件和附接到第二构件的第二剪切构件，其中第一和第二剪切构件适于在第一和第二构件分离时协同地剪切控制线。一种方法包括将第一构件与第二构件分离，并且在分离步骤之前或期间，切割靠近第一和第二构件的分离涂料的控制线。

2. 发明授权

US06497295B1 Torque limiting tool 有权
标题翻译：扭矩限制工具
公开(公告)号：US06497295B1
公开(公告)日：2002-12-24
申请号：US09494760
申请日：2000-01-31
申请人： Mark Carmichael , Paul Howlett
发明人： Mark Carmichael , Paul Howlett
IPC分类号： E21B1706
CPC分类号： E21B34/14 , E21B17/06 , E21B21/103 , E21B47/091
摘要： A down-hole tool comprises a generally tubular body for connection in a drill string, the body typically having an upper tubular member and a lower tubular member interconnected to be axially secured and relatively rotatable, and a frangible element securing the upper and lower members together rotationally and adapted to rupture at a predetermined load
摘要翻译：井下工具包括用于在钻柱中连接的大体管状体，所述主体通常具有上部管状构件和互连以被轴向固定和相对旋转的下部管状构件，以及将上部构件和下部构件固定在一起的易碎元件旋转并适于在预定负载下破裂

3. 发明授权

US06772835B2 Apparatus and method for disconnecting a tail pipe and maintaining fluid inside a workstring 有权
标题翻译：用于断开尾管并保持工作系统内的流体的装置和方法
公开(公告)号：US06772835B2
公开(公告)日：2004-08-10
申请号：US10230701
申请日：2002-08-29
申请人： Henry E. Rogers , Michael Dodson , Earl D. Webb , David D. Szarka , Frank Acosta
发明人： Henry E. Rogers , Michael Dodson , Earl D. Webb , David D. Szarka , Frank Acosta
IPC分类号： E21B1706
CPC分类号： E21B17/06 , E21B33/134
摘要： An embodiment of a downhole tool for use with a workstring in a wellbore includes a first section, a second section, and a coupling mechanism adapted such that in a first configuration the coupling mechanism couples the first section to the second section. In a second configuration, the coupling mechanism does not couple the first section to the second section. Also disclosed is a method for creating a plug in a wellbore, the method comprising: injecting a slurry into the workstring to form a plug in the wellbore, positioning a flow preventing mechanism into the workstring to prevent fluid flow from exiting the workstring, inducing a coupling mechanism to uncouple a portion of the workstring such that the portion remains with the slurry to create the plug in the wellbore, and removing the first section from the wellbore.
摘要翻译：用于井眼中的工作绳的井下工具的实施例包括第一部分，第二部分和联接机构，其适于使得在第一构造中，联接机构将第一部分联接到第二部分。在第二构造中，联接机构不将第一部分耦合到第二部分。还公开了一种用于在井眼中产生塞子的方法，所述方法包括：将浆料注入到所述工作柱中以在所述井眼中形成塞子，将流动防止机构定位到所述工作绳中以防止流体流出所述工作绳，从而引起耦合机构以使一部分工作串脱开，使得该部分保留在浆料中以在井筒中产生塞子，以及从井筒中移除第一部分。

4. 发明授权

US06186249B1 Release equipment for a drill string 有权
标题翻译：释放钻柱的设备
公开(公告)号：US06186249B1
公开(公告)日：2001-02-13
申请号：US09355290
申请日：1999-07-26
申请人： Thor Bjornstad
发明人： Thor Bjornstad
IPC分类号： E21B1706
CPC分类号： E21B17/06
摘要： A release piece for a drill string is adapted to disengage upon activation in connection with a bit stuck in the lower portion of the bore hole during drilling. An elongated tubular release piece (10a, 10b) is, at the ends (12a, 12b) thereof, formed to be coupled into the drill string, upstream the bit. The drill string release piece comprises two substantially coaxial sleeve parts (10a, 10b) disposed in the continuation of each other and screwable together, the sleeve parts (10a, 10b) internally being provided with axially directed locking device (16a, 16a′, 16b, 16b′). An internal, axially displaceable locking device (18) has locking device (28′, 28″) capable of cooperating lockingly with the locking device (16a, 16a′, 16b, 16b′) of both sleeve parts (10a, 10b), the locking position being maintained by a spring (22). In a drill string release situation, the spring action is neutralized, the drill string, thereafter, being rotated in order to unscrew the two sleeve parts (10a, 10b) from each other, whereafter the drill string can be hauled up.
摘要翻译：用于钻柱的释放件适于在钻孔期间与在钻孔的下部中粘附的钻头相关联地致动时脱离。细长的管状释放片（10a，10b）在其端部（12a，12b）处形成为在钻头的上游连接到钻柱中。钻柱释放件包括两个基本上同轴的套筒部分（10a，10b），它们彼此连续并且可旋转地连接在一起，套筒部分（10a，10b）内部设置有轴向定向的锁定装置（16a，16a'，16b ，16b'）。内部可轴向移动的锁定装置（18）具有能够与两个套筒部分（10a，10b）的锁定装置（16a，16a'，16b，16b'）锁定配合的锁定装置（28'，28“），锁定位置由弹簧（22）保持。在钻柱释放情况下，弹簧作用被中和，此后，钻柱被旋转以便将两个套筒部分（10a，10b）彼此拧下，之后钻柱可以被拉出。

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