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613 条记录 (耗时 0.019 秒)

    Multimodal tool jar
    11.
    发明授权
    Multimodal tool jar 有权

    公开(公告)号：US10655415B2

    公开(公告)日：2020-05-19

    申请号：US14730203

    申请日：2015-06-03

    申请人： BAKER HUGHES INCORPORATED

    发明人： Homero C. Castillo ,  Otto N. Fanini

    IPC分类号： E21B31/107 ,  E21B31/113

    摘要： Methods and apparatus for alleviating a stuck condition of a tool string, including using a jarring assembly to collide a plurality of impact surfaces together. The collision results in at least a shock wave inducing i) translational motion along the longitudinal axis of the tool string, and ii) motion in at least one other degree of freedom sufficient to alleviate the stuck condition of the tool string, which may be at least one of: i) translational motion along an axis substantially normal to the longitudinal axis, and ii) rotational motion. Methods may include generating at least one test impact load using a jarring assembly; generating movement information from a sensor responsive to the at least one test impact load; and generating further impact loads using the jarring assembly in dependence upon the movement information.

    REACTION VALVE DRILLING JAR SYSTEM
    12.
    发明申请
    REACTION VALVE DRILLING JAR SYSTEM 审中-公开

    公开(公告)号：US20190234166A1

    公开(公告)日：2019-08-01

    申请号：US16379586

    申请日：2019-04-09

    申请人： HALLIBURTON ENERGY SERVICES, INC.

    发明人： Michael J. Strachan

    IPC分类号： E21B31/113 ,  F16K31/04 ,  F16K3/08 ,  E21B31/107 ,  E21B21/10 ,  E21B34/06

    CPC分类号： E21B31/1135 ,  E21B21/10 ,  E21B31/107 ,  E21B31/113 ,  E21B34/066 ,  F16K3/085 ,  F16K31/041

    摘要： An apparatus and method for drilling is disclosed, including a drill string with at least one jar and one reaction valve. Drilling fluid flows through the reaction valve. The reaction valve is selectively throttled, which creates a differential pressure across the valve seat. The differential pressure creates an axial force that is transferred to the jar, which aids in cocking or firing the jar. In an embodiment, a reaction valve throttles downward fluid flow to create a downward compressional force on the jar, while in another embodiment, a reaction valve throttles upward fluid flow to create an upward tensile force on the jar. Upward and downward fluid flow may be alternatively throttled for alternately firing the jar upwards and downwards. A bypass valve may be included in the drill string for establishing a drilling fluid flow path when such may be otherwise obstructed by foreign matter in the wellbore.

    Drilling jar
    13.
    发明授权
    Drilling jar 有权

    公开(公告)号：US10352122B2

    公开(公告)日：2019-07-16

    申请号：US14987082

    申请日：2016-01-04

    申请人： Jason Swinford

    发明人： Jason Swinford

    IPC分类号： E21B31/107 ,  E21B31/18 ,  C22C9/01

    摘要： A jarring device for a coiled tubing of an oil well-bore is disclosed. A sliding assembly of the jarring device which is slideable within a barrel assembly includes a mandrel and a knocker. The barrel assembly comprises a fluid chamber. The fluid chamber includes an upper chamber, a restricted segment and a lower chamber. Further, a braking assembly is attached to the sliding assembly. The braking assembly includes a ring valve made of an alloy belonging to Aluminum-Bronze family of copper alloys, and which is capable of expanding when exposed to pressure. When the braking assembly is moved into restricted segment, and the fluid within the fluid chamber is compressed, flow of fluid through the restricted segment gets blocked due to expansion of the ring. When the braking assembly exits the restricted chamber, a sudden drop in pressure causes the knocker and/or the mandrel to strike the barrel assembly and generate a powerful jarring impact and shock wave.

    Jarring Apparatus
    16.
    发明申请
    Jarring Apparatus 审中-公开

    公开(公告)号：US20190071945A1

    公开(公告)日：2019-03-07

    申请号：US16180676

    申请日：2018-11-05

    申请人： Rotojar Limited

    发明人： Peter Barnes Moyes

    IPC分类号： E21B31/107

    摘要： A downhole jarring apparatus for use in jarring an object in a bore comprises a first jarring portion including a first impact surface and a second jarring portion including a second impact surface. The apparatus includes a rotatable jarring arrangement operable to translate a rotational drive movement to cause relative axial movement of the first and second impact surfaces to establish axial impact therebetween.

    Mechanical hammering tool for use in oil wells
    19.
    发明授权
    Mechanical hammering tool for use in oil wells 有权

    公开(公告)号：US10214983B2

    公开(公告)日：2019-02-26

    申请号：US15128329

    申请日：2015-04-10

    申请人： Loxley Holding AS

    发明人： John Robert Loxley Wood

    IPC分类号： E21B31/107 ,  E21B23/00 ,  E21B23/10 ,  E21B31/00

    摘要： The invention relates to a cable-operated hammering tool (20) for downhole operations, comprising an extended cylinder (3) with an axially through-going internal opening in the cylinder (3), a hammering part (10) is arranged in a lower section of the cylinder (3) and is fitted with a detachable coupling for the connection with downhole equipment, a release strut (1) is arranged in the upper section of the cylinder (3) that is connected to a cable which is connected to a surface installation, the hammering part is detachably fastened to the cylinder (3) with the help of, at least, one locking body (4). The release strut (1) is functionally connected to a force spring (2) for prestressing of this by moving in a first direction, and also functionally coupled to the, at least, one locking body (4) to be released from this by moving in an opposite direction.

    Predetermined load release device for a jar
    20.
    发明授权
    Predetermined load release device for a jar 有权

    公开(公告)号：US10208554B2

    公开(公告)日：2019-02-19

    申请号：US14618074

    申请日：2015-02-10

    申请人： Evans Engineering & Manufacturing, Inc.

    发明人： Robert W. Evans

    IPC分类号： E21B31/107

    摘要： A release device for a jarring tool includes a collet positioned between the mandrel of the jarring tool and a trigger sleeve. At least one end of the collet is in contact with a precompressed spring via a bushing. In order for the jarring tool to operate, a force greater than the precompressed force of the spring must be applied to the mandrel so that the collet can move in axial direction against the spring thereby releasing the mandrel.