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    Hydraulic fishing jar having tandem piston arrangement
    81.
    发明授权
    Hydraulic fishing jar having tandem piston arrangement 失效
    具有串联活塞装置的液压渔具

    公开(公告)号：US4059167A

    公开(公告)日：1977-11-22

    申请号：US765766

    申请日：1977-02-04

    Applicant: William O. Berryman

    Inventor： William O. Berryman

    IPC: E21B31/113 ,  E21B1/10

    CPC classification number: E21B31/113

    Abstract: The present invention relates to a hydraulic fishing jar adapted to be run into a well on a fishing string and connected to a fishing tool in the well bore. The jar comprises inner and outer telescopically interengaged bodies. A plurality of diametrically defined pressure areas, each of said pressure areas having upper and lower sealed ends, are contained within the jar. Tandem piston means are immediate one of said upper and lower sealed ends of each of the pressure areas. Seal means are carried by one of the inner and outer interengagable bodies and are engagable by the other of the inner and outer interengagable bodies and define one of the upper and lower sealed ends of the pressure areas. Seal means are provided between the piston means and one of the inner and outer telescopically interengaged bodies and define one of the upper and lower sealed ends of the pressure areas. The pressure areas are in fluid communication with one another and define a chamber for receipt of lubricant therewithin.

    Abstract translation: 本发明涉及一种液压钓鱼罐，其适于穿过钓鱼绳上的井并连接到井眼中的钓鱼工具。 罐子包括内部和外部可伸缩的相互接合的物体。 多个直径限定的压力区域，每个所述压力区域都具有上密封端和下密封端，容纳在罐内。 串联活塞装置是每个压力区域的所述上密封端和下密封端之一。 密封装置由内部和外部可相互接合的主体中的一个承载，并且可由内部和外部可互相接合的本体中的另一个接合，并限定压力区域的上部和下部密封端中的一个。 密封装置设置在活塞装置和内部和外部可伸缩相互接合的主体中的一个之间并且限定压力区域的上部和下部密封端之一。 压力区域彼此流体连通并且限定用于在其中接收润滑剂的室。

    Combination jar and releasing tool
    82.
    发明授权
    Combination jar and releasing tool 失效
    组合工具和释放工具

    公开(公告)号：US3860076A

    公开(公告)日：1975-01-14

    申请号：US39220373

    申请日：1973-08-28

    Applicant: WHITE TRAVIS B

    Inventor： WHITE TRAVIS B

    IPC: E21B17/06 ,  E21B31/113 ,  E21B1/10

    CPC classification number: E21B23/006 ,  E21B17/06 ,  E21B23/004 ,  E21B31/113

    Abstract: A combination hydraulic jar and releasing tool for wire line operation. The releasing tool has a dog positioned with a ''''J'''', with part of the ''''J'''' forming a spline which is received within the groove of a piston. The piston reciprocates within a chamber, and has a lower face thereof made into a cam which can be brought to bear against the dog with a cam action, so that the dog is turned out of the ''''J'''' when the tool string is set down. The hydraulic jar comprises a mandrel attached to a piston with the piston being reciprocatingly received within a piston chamber. The chamber comprises adjacent large and small concentrically arranged axial passageways with a valve located therebetween so that the piston, when released from the small chamber, accelerates and impacts against the opposed end of the chamber with a jarring action.

    Abstract translation: 用于线路操作的组合液压罐和释放工具。 释放工具具有定位为“J”的狗，其中一部分“J”形成接收在活塞槽内的花键。 活塞在室内往复运动，并且其下表面制成凸轮，凸轮能够以凸轮动作抵靠在该凸轮上，使得当工具柱被放下时，狗被转过“J” 。

    Hydraulic jarring mechanism
    83.
    发明授权
    Hydraulic jarring mechanism 失效
    液压装载机

    公开(公告)号：US3729058A

    公开(公告)日：1973-04-24

    申请号：US3729058D

    申请日：1970-10-21

    Applicant: KAJAN SPECIALTY CO INC

    Inventor： ROBERTS P

    IPC: E21B31/113 ,  E21B1/10 ,  E21B23/00

    CPC classification number: E21B31/113

    Abstract: A bypass passage for displaced fluid in an hydraulic jarring device is equipped with a pressure responsive regulator sleeve which automatically moves axially within the fluid reservoir of the device to restrict fluid flow through the passage as required to maintain a relatively constant pressure in the compression chamber of the reservoir during an initial portion of the upstroke. An externally threaded plug is set within a threaded bore extending through the sleeve between the compression chamber and the bypass passage. The thread peaks on the plug are flattened which produces a helical orifice passage between the plug and bore which may be adjusted in length by rotating the plug which in turn establishes the high pressure value in the compression chamber. A thin wall segment supporting a portion of the plug threads moves radially in response to pressure changes to vary the cross-sectional dimensions of the orifice to assist in pressure regulation.

    Abstract translation: 用于液压振动装置中的位移流体的旁路通道配备有压力响应调节器套筒，该压力响应调节器套筒在装置的流体储存器内自动沿轴向移动，以限制流体通过通道的流体，以在压缩室中保持相对恒定的压力 在上行中的初始部分的水库。 外螺纹塞子被设置在螺纹孔内，该螺纹孔在压缩室和旁路通道之间延伸穿过套筒。 塞子上的螺纹峰值变平，其在塞和孔之间产生螺旋孔通道，其可以通过旋转塞子来调节长度，从而在压缩室中建立高压值。 支撑插塞螺纹的一部分的薄壁部分响应于压力变化而径向地移动，以改变孔口的横截面尺寸以辅助压力调节。

    Continuous feed head drill assembly
    84.
    发明授权
    Continuous feed head drill assembly 失效
    连续进料头钻机组

    公开(公告)号：US3708020A

    公开(公告)日：1973-01-02

    申请号：US3708020D

    申请日：1971-01-15

    Applicant: ADAMSON J

    Inventor： ADAMSON J

    IPC: E21B6/00 ,  E21B19/086 ,  E21B31/113 ,  E21B5/00 ,  E21B19/08

    CPC classification number: E21B19/086 ,  E21B6/00 ,  E21B31/113

    Abstract: Opposed pairs of piston and cylinder assemblies each have a drill stem chuck which can be engaged or disengaged from the drill stem. When drilling, the lower chuck engages the drill stem and the lower pair of pistons moves downwardly while the upper pair moves upwardly together with the upper chuck. When the pistons are fully extended, the lower chuck releases and the upper chuck engages the drill stem whereupon the piston movement is reversed. The chuck engaging the drill stem rotates so that continuous rotation and feed is accomplished. The reverse action withdraws the drill stem from the drill hole. The upper part of the tower is pivoted so that the lengths of drill pipe can be moved from the horizontal to the vertical and vice versa. Hold means are provided engageable with a length of drill stem to prevent same from dropping into the drill hole while raising and lowering the drill stem. Hydraulic means are provided to jar the string loose if it jams in the hole and a modulating valve assembly is provided to prevent excess pressure being applied to the rotating drill bit.

    Abstract translation: 相对的活塞和气缸组件对都具有可以与钻杆接合或分离的钻杆卡盘。 当钻孔时，下卡盘与钻杆接合，下一对活塞向下移动，同时上托架与上卡盘一起向上运动。 当活塞完全伸出时，下卡盘释放，上卡盘与钻杆接合，随后活塞运动相反。 接合钻杆的卡盘旋转，从而实现连续旋转和进给。 反向动作从钻孔中取出钻杆。 塔的上部枢转，使得钻杆的长度可以从水平移动到垂直，反之亦然。 提供与一定长度的钻杆接合的保持装置，以防止钻头在升高和降低钻杆杆时下降到钻孔中。 如果液压装置卡在孔中并提供调节阀组件以防止过大的压力施加到旋转的钻头上，则液压装置被设置成使其松动。

    Fluid accelerator for use with an hydraulic jar in a well
    85.
    发明授权
    Fluid accelerator for use with an hydraulic jar in a well 失效
    流体加速器与液压油缸一起使用

    公开(公告)号：US3570612A

    公开(公告)日：1971-03-16

    申请号：US3570612D

    申请日：1968-10-17

    Applicant: BOWEN TOOLS INC

    Inventor： SLATOR DAMON T

    IPC: E21B31/113 ,  E21B1/06

    CPC classification number: E21B31/113

    Abstract: An accelerator for use with an hydraulic jar in a well for storing energy immediately above the jar and drill collars, including piston means for compressing a fluid on one side thereof to develop stored energy on the jarring stroke, and means for transferring fluid from the other side of the piston means to said one side thereof upon the return stroke of the jar.

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