公开(公告)号：US4476924A

公开(公告)日：1984-10-16

申请号：US472827

申请日：1983-03-07

申请人： Carl E. Winders ,  Fred E. Watkins

发明人： Carl E. Winders ,  Fred E. Watkins

IPC分类号： E21B33/072 ,  E21B33/08

CPC分类号： E21B33/072

摘要： A grease injection control head for maintaining a seal about a wire performing wireline operations in a well. A tubular body includes a grease injection port for injecting grease for counteracting pressure in the well with a vent port above the injection port for venting fluids. A plurality of tubular members are provided in the body positioned between the injection port and the vent port. Each member includes a close fitting longitudinal bore for passage of a wireline for providing a grease pressure seal. The members are telescopically and sealably joined to adjacent members. The members include an enlarged cavity about the bore at each end for providing a turbulent grease chamber between adjacent members for distributing the pressure drop along the body for reducing loading on the wire and friction with a minimum length body. The length of a longitudinal bore relative to the longitudinal length of a chamber is no greater than 5:1. The body includes a second vent port above the first vent port for acting as a wiper vent port with one or more tubular members between the vent ports. A gas trap may be provided in the body below the injection port for trapping gas from the well. The trap includes means for diverting rising gas from the bore.

摘要翻译： 润滑脂注入控制头，用于在井中保持围绕在井中执行有线操作的线的密封。 管状体包括用​​于喷射用于抵消井中的压力的​​油脂注入口，其具有用于排出流体的喷射口上方的排气口。 多个管状构件设置在位于注入口和通气口之间的主体中。 每个构件包括用于通过电缆以提供油脂压力密封的紧密配合的纵向孔。 这些构件可伸缩地密封地连接到相邻的构件。 构件包括在每个端部处围绕孔的扩大的腔，用于在相邻构件之间提供湍流润滑脂室，用于沿着主体分配压降以减少线上的负载并与最小长度的主体摩擦。 纵向孔相对于腔的纵向长度的长度不大于5:1。 主体包括位于第一通气口上方的第二通气口，用作在排气口之间具有一个或多个管状构件的刮水器排气口。 气体收集器可以设置在注入口下方的主体中，用于从井中捕集气体。 捕集阱包括用于从井眼转向上升气体的装置。

公开(公告)号：US4415028A

公开(公告)日：1983-11-15

申请号：US300087

申请日：1981-09-08

申请人： Fred E. Watkins

发明人： Fred E. Watkins

IPC分类号： E21B33/129 ,  E21B34/14 ,  E21B47/06 ,  E21B23/00 ,  E21B34/06

CPC分类号： E21B34/14 ,  E21B33/1294 ,  E21B47/06

摘要： An apparatus for measuring bottom hole conditions such as pressure in the tubing of a well including a locking and sealing sub to lock into and seal against the interior of the tubing, an isolation valve connected in the sub and a measuring instrument connected to the valve for measuring conditions in the tubing. The isolation valve has a bore with an annular seat in the bore and side ports leading into the bore below the seat. A valve element is longitudinally movable in the valve between an open position below the ports and a closed position against the seat and includes an elongate mandrel having a backup shoulder. A latch mechanism initially holds the valve in the open position and includes a collet member initially engaging the mandrel and holding the valve element in the open position and the collet is held in a latched position by a spring loaded backup shoulder. Spring means yieldably urge the collet out of engagement with the mandrel and close the valve when the backup shoulder is moved out of engagement with a collet. The valve flow passageway is as large as the bore through the locking sub. A closing prong which actuates the valve to the closed position has a cross-sectional area substantially smaller than the valve passageway.

摘要翻译： 一种用于测量井底条件的装置，例如井的管道中的压力，其包括锁定和密封子，以锁定并密封管道的内部，连接在子系统中的隔离阀和连接到阀的测量仪器 测量管道中的条件。 隔离阀具有孔，该孔在孔中具有环形座，并且侧孔通向座下方的孔。 阀元件可以在阀门之间纵向移动，位于端口下方的打开位置和抵靠座椅的关闭位置之间，并且包括具有备用肩部的细长心轴。 闩锁机构最初将阀保持在打开位置，并且包括最初接合心轴并将阀元件保持在打开位置的夹头构件，并且夹头由弹簧加载的后备肩部保持在闩锁位置。 弹簧意味着可靠地促使夹头脱离与心轴的接合，并且当备用肩部脱离与夹头接合时闭合该阀。 阀门流通通道与通过锁定子孔的孔一样大。 将阀致动到关闭位置的闭合尖端具有基本上小于阀通道的横截面面积。

公开(公告)号：US4160484A

公开(公告)日：1979-07-10

申请号：US869556

申请日：1978-01-16

申请人： Fred E. Watkins

发明人： Fred E. Watkins

IPC分类号： E21B34/00 ,  E21B34/10 ,  E21B43/12

CPC分类号： E21B34/105 ,  E21B2034/005

摘要： A well safety valve for controlling the fluid flow through a well tubing in which the valve is biased closed. When fluid control pressure is supplied from the well surface, the valve is opened, but the valve closes when the control pressure exceeds a predetermined value. The tubular member controlling the actuation of the valve member includes a first upper and a second lower telescoping section with releasable locking means normally securing the telescoping sections together. A stop shoulder is positioned in the path of movement of the second section in the opening direction for actuating the release of the locking means when the control fluid force exceeds said predetermined value, and the second telescoping section is moved in a closing direction for closing the valve member when the locking means is released. The locking means may be either a shear pin or a resettable lock.

摘要翻译： 用于控制通过其中阀被偏置关闭的井管的流体流动的井安全阀。 当从井表面供给流体控制压力时，阀打开，但是当控制压力超过预定值时，阀关闭。 控制阀构件的致动的管状构件包括第一上部和第二下部伸缩部分，其具有通常将伸缩部分固定在一起的可释放的锁定装置。 止动肩部位于打开方向上的第二部分的运动路径中，以在控制流体力超过所述预定值时致动释放锁定装置，并且第二伸缩部分在关闭方向上移动以关闭 当锁定装置被释放时，阀构件。 锁定装置可以是剪切销或可复位的锁。

公开(公告)号：US4106563A

公开(公告)日：1978-08-15

申请号：US848008

申请日：1977-11-03

申请人： Alvin O. Gatlin ,  Gilbert H. Tausch ,  Fred E. Watkins

发明人： Alvin O. Gatlin ,  Gilbert H. Tausch ,  Fred E. Watkins

IPC分类号： E21B23/03 ,  E21B23/02

CPC分类号： E21B23/03

摘要： A mandrel for use in a well tubing in which the mandrel body has an open bore for alignment with the well tubing and a sidepocket offset from the open bore for receiving flow control devices. An integrally forged sub is welded to the top of the body and includes an actuating shoulder angularly spaced from the axis of the offset pocket a predetermined amount and a guide surface is positioned below the shoulder and directed upwardly towards the shoulder. A deflector guide is positioned in the offset bore above the pocket and includes a pair of rails forming a guide path which allows the entrance of flow control devices in the pocket but prevents the entrance of open bore tools into the guide path. The deflector guide and the pocket are telescopically secured to each other by coacting flat surfaces for insuring transverse alignment therebetween and include abutting coacting shoulders for maintaining proper axial spacing between the locking lug and the pocket.

摘要翻译： 用于井管中的心轴，其中心轴本体具有用于与井管对准的开口孔，以及与开口孔偏移以用于接收流量控制装置的侧口。 整体锻造的子焊接到主体的顶部并且包括与偏移袋的轴线成角度地间隔开预定量的致动肩部，并且引导表面位于肩部下方并且向上指向肩部。 偏转器引导件定位在口袋上方的偏移孔中，并且包括一对轨道，其形成导向路径，该引导路径允许流量控制装置进入口袋内，但是防止开孔工具进入引导路径。 偏转器引导件和凹槽通过共同作用的平坦表面彼此可伸缩地固定，以确保其间的横向对准，并且包括邻接的共同作用的肩部，用于在锁定凸耳和口袋之间保持适当的轴向间隔。

公开(公告)号：US998572A

公开(公告)日：1911-07-18

申请号：US1910587894

申请日：1910-10-19

申请人： ROBERT TOOMER ,  WM F SCHUERMEYER ,  WESLEY Y DILLEY ,  THOMAS O HAYES ,  FRED E WATKINS ,  GAMBILL JOHN F ,  WOODS FRED M

发明人： GAMBILL JOHN F ,  WOODS FRED M

CPC分类号： E05D13/00 ,  Y10T16/767

公开(公告)号：US4077473A

公开(公告)日：1978-03-07

申请号：US788190

申请日：1977-04-18

申请人： Fred E. Watkins

发明人： Fred E. Watkins

IPC分类号： E21B34/00 ,  E21B34/10 ,  E21B43/12

CPC分类号： E21B34/102 ,  E21B2034/005

摘要： A well safety valve for controlling the fluid flow through a well tubing in which the valve closure member is controlled by a longitudinal movable tubular member which opens and closes the valve, can lock the valve in an open position, can telescopically collapse to avoid damage to the valve, and can be reset either manually or automatically. The tubular member includes first and second telescoping sections which are releasably locked together in an intermediate extended position for normally opening and closing the valve on movement of the tubular member. The releasable locking means is constructed to release upon the application of a predetermined force less than a force sufficient to cause damage to the valve whereby on application of an excessive force the sections will telescope towards each other preventing damage to the valve. Coacting shoulder means are provided between the valve body and lower telescoping member to automatically extend the telescoping sections on upward movement of the tubular member.

摘要翻译： 用于控制通过井管的流体流动的井安全阀，其中阀闭合构件由打开和关闭阀的纵向可移动管状构件控制，可以将阀锁定在打开位置，可以可伸缩地折叠以避免损坏 阀门，可手动或自动复位。 管状构件包括第一和第二伸缩部分，该第一和第二伸缩部分可释放地锁定在一起处于中间延伸位置，用于在管状部件运动时常开和关闭阀。 可释放的锁定装置被构造成在施加小于足以导致阀损坏的力的预定力的作用下释放，由此施加过大的力时，这些部分将朝向彼此望远镜防止对阀的损坏。 在阀体和下伸缩构件之间提供共同作用的肩部装置，以在管状构件向上运动时自动延伸伸缩部分。

公开(公告)号：US5257665A

公开(公告)日：1993-11-02

申请号：US936606

申请日：1992-08-27

申请人： Fred E. Watkins

发明人： Fred E. Watkins

IPC分类号： E21B43/12 ,  E21B43/00

CPC分类号： E21B43/122

摘要： A method and system for recovering fluids from a hydrocarbon-bearing subsurface formation includes a first tubing string run into the well and a second tubing string run within the first tubing string. The annulus between the first and second tubing strings is sealed above a liquid level in the well and at least one fluid passageway is provided between the first and second tubing strings at a location between the liquid level and adjacent the annulus seal. The difference of the liquid head between the inside of the second tubing string opposite the at least one fluid passageway and the outside of the second tubing string (i.e. the first and second tubing string annulus) provides the casing annulus-to-tubing differential pressure that forces gas above the annulus fluid level to pass through the at least one fluid passageway and re-enter the fluid stream in the second tubing string. As less gas or more liquid is produced, the liquid level in the annulus rises and less pressure differential is available to force the gas through the at least one fluid passageway; therefore, less gas will flow into the second tubing string fluid. If more gas or less liquid is produced, the liquid level in the annulus will drop; thereby, creating more pressure differential and more gas will pass into the second tubing string. In this manner, a self regulating system is created that prevents liquid loading of the well.

摘要翻译： 用于从含烃地下地层回收流体的方法和系统包括进入井的第一管柱和在第一管柱内运行的第二管柱。 第一和第二管柱之间的环形空间被密封在井的液面之上，并且至少一个流体通道设置在第一和第二管柱之间，位于液位和邻近环形密封之间的位置处。 在第二管柱的与至少一个流体通道相对的内部和第二管柱的外部（即，第一和第二管柱环）之间的液体头的差异提供了套管环到管的差压， 迫使气体高于环形液面以通过至少一个流体通道并且重新进入第二管道管道中的流体流。 随着产生更少的气体或更多的液体，环形空间中的液面升高，并且较小的压力差可用于迫使气体通过至少一个流体通道; 因此，较少的气体将流入第二管柱流体。 如果产生更多的气体或更少的液体，则环空中的液面将下降; 从而产生更多的压差，并且更多的气体将进入第二管柱。 以这种方式，产生防止井的液体装载的自调节系统。

公开(公告)号：US4360064A

公开(公告)日：1982-11-23

申请号：US206220

申请日：1980-11-12

申请人： John A. O'Connor, III ,  Warren E. Holland ,  James D. Burley ,  Ronald D. Rogers ,  Fred E. Watkins ,  Ben D. Terral

发明人： John A. O'Connor, III ,  Warren E. Holland ,  James D. Burley ,  Ronald D. Rogers ,  Fred E. Watkins ,  Ben D. Terral

IPC分类号： E21B34/06 ,  E21B34/10 ,  E21B43/12 ,  E21B34/08

CPC分类号： E21B34/10 ,  E21B21/103

摘要： A circulating (kill) valve for hot, high pressure wells includes a valve assembly to be positioned in an open-ended tubular-shaped side-pocket housing of a mandrel connected into a well tubing string. The valve assembly includes an open-ended cylindrical valve body provided with an interior sealing seat and spaced-apart side openings. A valve element is arranged within the valve body and is urged by unbalanced pressures to the open or closed position depending on the direction of the pressure imbalance. In the closed position a sealing surface on the exterior of the valve element engages and seals with the lower interior sealing seat of the valve body. A ported access to the inner well string pressure permits that pressure to urge the valve element to the closed position. Such pressure may be overcome by pressure imbalance when fluid pressure exterior of the tubing string forces the valve element upwardly from its seat. A wiper seal is arranged on the interior of the valve body and engages the outer surface of the valve element. A ported access to inner tube pressure urges the valve element to the closed position which may be overcome by pressure imbalance when exterior pressure forces the valve element from its seat.

摘要翻译： 用于热的高压井的循环（杀死）阀包括阀组件，其被定位在连接到井管柱中的心轴的开口管状侧袋壳体中。 阀组件包括一个开口的圆柱形阀体，它设有内部密封座和间隔开的侧面开口。 阀元件设置在阀体内，并根据压力不平衡的方向被不平衡的压力推到打开或关闭位置。 在关闭位置，阀元件的外部上的密封表面与阀体的下部内部密封座接合并密封。 通过进入内部井筒压力的方式允许压力将阀元件推到关闭位置。 当管柱外部的流体压力迫使阀元件从其座位向上时，压力不平衡可以克服这种压力。 在阀体的内部布置有擦拭器密封件，并与阀元件的外表面接合。 对内管压力的移动通道促使阀元件处于关闭位置，当外部压力迫使阀元件从其座位时，该位置可能被压力不平衡所克服。

公开(公告)号：US4161984A

公开(公告)日：1979-07-24

申请号：US940819

申请日：1978-09-11

申请人： Fred E. Watkins

发明人： Fred E. Watkins

IPC分类号： E21B23/02

CPC分类号： E21B23/02

摘要： A well locking device and method of operation including a well lock and a landing nipple for locking well equipment in the production string of oil and/or gas wells. The well lock includes two sets of locking dogs, one of which locks the well lock in the landing nipple and holds against loads either from above or below the lock. The second set of locking dogs prevents the release of the well lock from the nipple when a pressure differential exists across the lock. A locking nipple includes first and second recesses and a stop shoulder and the coacting well lock includes a housing carrying first and second locking dogs in which the vertical spacing of the first and second locking dogs is less than the vertical distance between the tops of the first and second recesses. A seal is positioned on the exterior of the well lock housing and adapted to seal in the locking nipple, and locating means are provided on the housing for engaging the stop shoulder of the nipple. The lock can be released only by moving it downwardly and then upwardly, but any pressure below the lock sufficient to lift the lock back up after being moved downwardly will not allow the lock to be released.

摘要翻译： 井锁装置和操作方法，包括井锁和用于将井设备锁定在油井和/或气井的生产线中的着陆接头。 井锁包括两套锁定锁，其中一个锁定锁定在着陆接头中的井锁，并且从锁的上方或下方抵抗负载。 第二组锁定锁在锁上存在压力差时，可以防止油井锁从奶嘴中释放出来。 锁定接头包括第一和第二凹部和止动肩部，并且共同作用井锁包括承载第一和第二锁定爪的壳体，其中第一和第二锁定爪的垂直间距小于第一和第二锁定爪的顶部之间的垂直距离 和第二凹槽。 密封件位于井锁壳体的外部并且适于密封在锁定接头中，并且定位装置设置在壳体上用于接合乳头的止动肩部。 只有通过将其向下移动然后向上移动才可以释放锁，但是在锁定之后的任何压力足以在向下移动之后提升锁定将不允许释放锁定。

公开(公告)号：US4161960A

公开(公告)日：1979-07-24

申请号：US880532

申请日：1978-02-23

申请人： Fred E. Watkins

发明人： Fred E. Watkins

IPC分类号： E21B34/00 ,  E21B34/08 ,  F16K17/00

CPC分类号： E21B34/08 ,  E21B2034/005 ,  Y10T137/7725 ,  Y10T137/7728 ,  Y10T137/773 ,  Y10T137/7733

摘要： A well safety valve adapted to be positioned in a well tubing and close on either a predetermined high tubing pressure or a predetermined low tubing pressure. The valve closure member in the valve body moves between an open and closed position in response to longitudinal movement of a tubular member. The tubular member has an open bore for alignment with the bore of the well tubing to provide straight through flow through the safety valve. In addition, the tubular member has a plurality of telescoping sections and releasable and resettable locking means normally securing the plurality of sections together. A predetermined high tubing pressure or a predetermined low tubing pressure acting on the tubular member causes the valve to close.

摘要翻译： 一种安全阀，其适于定位在井管中并且在预定的高管道压力或预定的低管道压力下闭合。 阀体中的阀关闭构件响应于管状构件的纵向移动而在打开和关闭位置之间移动。 管状构件具有用于与井管的孔对准的开孔，以提供穿过安全阀的直通流。 此外，管状构件具有多个伸缩部分和通常将多个部分固定在一起的可释放和可重置的锁定装置。 作用在管状构件上的预定的高管道压力或预定的低管道压力导致阀门关闭。