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1. 发明授权

US6016880A Rotating drilling head with spaced apart seals 失效
标题翻译：旋转钻头与间隔开的密封
公开(公告)号：US6016880A
公开(公告)日：2000-01-25
申请号：US942888
申请日：1997-10-02
申请人： Douglas D. Hall , Paul E. Helfer
发明人： Douglas D. Hall , Paul E. Helfer
IPC分类号： E21B33/08 , E21B33/06
CPC分类号： E21B33/085
摘要： A drilling head has a body which lands in an external housing. The body is removably secured to the housing with an annular split ring which is moveable in response to a cam member. The body has an outer body and a rotatable inner body with an axial bore. An annulus extends between the inner and outer bodies. Inlet and outlet ports communicate hydraulic fluid to the annulus which is sealed. The inner body has a gripping member with inner and outer portions. The inner portion has a solid annular elastomer which is free to slide radially relative to the inner body. The outer diameter of the inner portion abuts the outer portion. The outer portion has an energizable elastomer with an annular cavity. The cavity communicates with the annulus through a passage. A primary seal extends from a lower end of the inner body. The seal has a conical elastomer and reinforcement webs to give the elastomer greater rigidity in the upward direction. Drill pipe having a plurality of tool joints is lowered through the bore of the drill head. As tool joints are lowered through the primary seal, the elastomer and ribs flex outward. As the tool joints exit the primary seal, it snaps back and seals around the drill pipe. During drilling, the gripping member is energized to grip and provide a secondary seal around the drill pipe, thereby causing the inner body to rotate with the drill pipe.
摘要翻译：钻头具有一个位于外壳中的主体。主体可拆卸地固定到壳体上，该环形开口环可响应于凸轮构件而移动。主体具有外部主体和具有轴向孔的可旋转内部主体。环形体在内部和外部主体之间延伸。入口和出口将液压油传送到被密封的环形空间。内体具有内部和外部的夹持构件。内部具有固体环形弹性体，其相对于内体自由地径向滑动。内部的外径与外部部分抵接。外部具有带有环形空腔的可激发弹性体。空腔通过通道与环带连通。主密封件从内体的下端延伸。密封件具有锥形弹性体和加强筋，以使弹性体在向上方向上具有更大的刚性。具有多个工具接头的钻管通过钻头的孔下降。当工具接头通过主密封件降低时，弹性体和肋条向外弯曲。当工具接头离开主密封件时，它将卡扣并密封在钻杆周围。在钻孔期间，夹持构件被通电以夹紧并且提供围绕钻杆的次级密封，从而使内部主体与钻杆一起旋转。

2. 发明授权

US4655431A Ram-type blowout preventer 失效
标题翻译：拉姆式防喷器
公开(公告)号：US4655431A
公开(公告)日：1987-04-07
申请号：US798135
申请日：1985-11-13
申请人： Paul E. Helfer , Marvin R. Jones
发明人： Paul E. Helfer , Marvin R. Jones
IPC分类号： E21B33/06
CPC分类号： E21B33/062
摘要： An improved blowout preventer having a body with a central bore and aligned opposed passages extending out from the central bore, a ram assembly in each of the passsages and including a ram body with a face seal, a rear slot, a first passage through the body from above the face seal into the slot, a second passage through said body from below the face seal into the slot, a pressure responsive actuator, a connector extending from the actuator to the ram body and having a disc end positioned in and movable axially in said slot to close and open flow through said ram body passages, a third passage through said ram body from above said face seal to the rear of the ram body, a fourth passage through said ram body from below said face seal to the rear of the ram body and means coacting with said third and fourth passages to allow fluid flow to the rear of said ram body and to prevent fluid flow to the front of said ram body.
摘要翻译：一种改进的防喷器，具有具有中心孔的本体和从中心孔延伸出的对准的相对通道，每个传递部分中的冲头组件，并且包括具有面密封件的冲头主体，后槽，穿过本体的第一通道从表面密封件的上方进入槽中，从表面密封件下面通过所述主体的第二通道进入槽，压力响应致动器，从致动器延伸到冲头主体的连接器，并且具有定位在轴向并可轴向移动的盘端所述狭槽关闭并打开流过所述冲头本体通道的流动，从所述表面密封件上方穿过所述冲压体的第三通道到冲头主体的后部，从所述面密封件的下方穿过所述冲头主体的第四通道冲头主体和装置与所述第三和第四通道共同作用以允许流体流到所述冲头主体的后部并且防止流体流动到所述冲头主体的前部。

3. 发明授权

US4152015A Casing hanger 失效
标题翻译：套管衣架
公开(公告)号：US4152015A
公开(公告)日：1979-05-01
申请号：US808682
申请日：1977-06-21
申请人： Marvin R. Jones , Paul E. Helfer , John H. Cohen
发明人： Marvin R. Jones , Paul E. Helfer , John H. Cohen
IPC分类号： E21B33/04 , E21B19/10
CPC分类号： E21B33/0422
摘要： A casing hanger for supporting a casing from a casing head within a well bore having a split ring with sealing means attached thereto, a plurality of gripping assemblies supported from the split ring and each of said assemblies including a body with an inwardly facing recess and an exterior surface which tapers downward and inward, to seat in the casing head bowl a plurality of gripping dogs having a generally horizontal gripping edge extending radially inward from the body, and a deformable backing positioned within the space between the outer edge of said dogs and the body recess, the backing partially filling the space behind the dogs and having space into which the backing may move on deformation, the backing providing varying areas in support of each gripping dog and being relatively yieldable.
摘要翻译：一种套管悬挂器，用于在井眼内的壳体头部中支撑壳体，所述套管头具有连接到其上的密封装置的开口环，从所述开口环支撑的多个夹持组件，每个所述组件包括具有向内的凹部和外表面向下和向内变细，以便在套管头碗中安置多个夹持爪，其具有从主体径向向内延伸的大致水平的夹持边缘，以及位于所述狗的外缘之间的空间内的可变形背衬，背部部分地填充狗后面的空间，并且具有背衬可以在变形时移动的空间，背衬提供支撑每个夹爪的不同区域并且相对屈服。

4. 发明授权

US4057887A Pipe disconnecting apparatus 失效
标题翻译：管道切断装置
公开(公告)号：US4057887A
公开(公告)日：1977-11-15
申请号：US646247
申请日：1976-01-02
申请人： Marvin R. Jones , Paul E. Helfer
发明人： Marvin R. Jones , Paul E. Helfer
IPC分类号： E21B19/16 , B25B17/00
CPC分类号： E21B19/164 , Y10T29/53687
摘要： Apparatus for disconnecting the lower threaded end of an upper section from the upper threaded end of a lower section of pipe string extending through the bore of an underwater wellhead.
摘要翻译：用于将上部的下部螺纹端部与从水下井口的孔延伸的管柱下部的上部螺纹端部分断开的装置。

5. 发明授权

US3957113A Pipe disconnecting apparatus 失效
标题翻译：管道切断装置
公开(公告)号：US3957113A
公开(公告)日：1976-05-18
申请号：US467158
申请日：1974-05-06
申请人： Marvin R. Jones , Paul E. Helfer
发明人： Marvin R. Jones , Paul E. Helfer
IPC分类号： F16L15/00 , E21B19/16 , F16L37/00 , F16L37/48 , E21B33/03 , B25B17/00
CPC分类号： E21B19/164
摘要： Apparatus for disconnecting the lower threaded end of an upper section from the upper threaded end of a lower section of pipe string extending through the bore of an underwater wellhead.
摘要翻译：用于将上部的下部螺纹端部与从水下井口的孔延伸的管柱下部的上部螺纹端部分断开的装置。

6. 发明授权

US4638972A Valve apparatus 失效
标题翻译：阀门装置
公开(公告)号：US4638972A
公开(公告)日：1987-01-27
申请号：US756187
申请日：1985-07-18
申请人： Marvin R. Jones , Paul E. Helfer
发明人： Marvin R. Jones , Paul E. Helfer
IPC分类号： E21B33/06 , F16J15/48
CPC分类号： F16J15/48 , E21B33/062
摘要： There is disclosed a blowout preventer used in the drilling and completion of oil and gas wells and having rams which are moved within chambers in a housing which intersect a bore therethrough between positions opening and closing the bore. The zones of the bore above and below the closed rams are respectively connected by first and second passageway means with the outer side of the rams, with one of the passageway means extending through each ram. Each ram is moved by operating means which includes a rod having a lost motion therewith and a packing assembly on its inner end which sealably engages an end surface of the ram which surrounds the opening of the one passageway means to the chamber, as the rod moves inwardly to close the rams, and disengages therefrom, as the rod moves outwardly to open the rams.
摘要翻译：公开了一种用于钻井和完井油气井的防喷器，并且具有在室内移动的柱塞，所述柱塞在壳体内移动，所述壳体与打开和关闭孔的位置相交。密封的柱塞上方和下方的孔的区域分别通过第一和第二通道装置与公柱的外侧连接，其中一个通道装置延伸穿过每个压头。每个压头通过操作装置移动，操作装置包括一个具有空动作的杆和在其内端上的一个包装组件，当该杆移动时，该密封组件可密封地接合一个通道装置的开口的一个端部表面当杆向外移动以打开公柱时，向内关闭柱塞，并从中脱离。

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