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    • 3. 发明申请
    • DOWNHOLE IMPACT APPARATUS
    • 井下冲击装置
    • WO2017087504A1
    • 2017-05-26
    • PCT/US2016/062249
    • 2016-11-16
    • IMPACT SELECTOR INTERNATIONAL, LLC
    • MASSEY, PaulWILSON, ThomasSAVILLE, Edward
    • E21B31/113E21B17/06
    • E21B31/113E21B17/06
    • An apparatus and method for performing a downhole impact operation. The apparatus comprising: an impact tool (200) operable to be coupled between opposing first (206) and second (210) portions of a downhole tool string and conveyed within a wellbore, wherein the impact tool comprises: a housing (202); a chamber (214) within the housing (202); a piston (220) slidably disposed within the chamber (214) and dividing the chamber into a first chamber volume (222) and a second chamber volume (224), wherein the first chamber volume (222) is open to a space external to the housing (202), and wherein the second chamber volume (224) is fluidly isolated from the space external to the housing (202); and a shaft (240) connected with the piston (220) and axially movable with respect to the housing (202).
    • 用于执行井下冲击操作的装置和方法。 所述设备包括:冲击工具(200),所述冲击工具可操作以联接在井下工具管柱的相对的第一部分(206)和第二部分(210)之间并在井筒内输送,其中所述冲击工具包括:壳体(202); 在壳体(202)内的腔室(214); 可滑动地设置在腔室(214)内并将腔室分成第一腔室容积(222)和第二腔室容积(224)的活塞(220),其中第一腔室容积(222)通向第二腔室容积 (202),并且其中所述第二腔室容积(224)与所述壳体(202)外部的所述空间流体隔离; 和与活塞(220)连接并且可相对于壳体(202)轴向移动的轴(240)。
    • 4. 发明申请
    • SEALED JAR
    • 密封罐
    • WO2013040578A3
    • 2014-01-03
    • PCT/US2012055792
    • 2012-09-17
    • IMPACT SELECTOR INC
    • HRADECKY JASON ASAVILLE JOHN EDWARD
    • E21B31/113E21B31/107
    • E21B31/107E21B31/113
    • A device (500) has a first, lower sub housing (112), a second, upper sub housing (102), and an extensible joint (110) connecting the lower sub housing (112) to the upper sub housing (102). A pressure equalization chamber (502) is attached to the upper sub housing (102) and demarcates an inner zone (508) including an internal mechanism of the extensible joint, and an outer zone (510) open to well bore fluids and pressure. A fluid barrier (506) moves within the pressure equalization chamber (502) in response to changes in well bore pressure to alter a volume of the inner zone (508) to equalize a pressure of the inner zone.
    • 装置(500)具有第一下部副壳体(112),第二上部副壳体(102)和将下部副壳体(112)连接到上部副壳体(102)的可伸缩接头(110)。 压力平衡室(502)附接到上副壳体(102)并且限定包括可伸缩接头的内部机构的内部区域(508)以及开放以容纳流体和压力的外部区域(510)。 响应于井筒压力的变化,流体屏障(506)在压力平衡室(502)内移动,以改变内部区域(508)的体积以均衡内部区域的压力。
    • 7. 发明申请
    • DOUBLE ACTING HYDRAULIC JAR
    • 双作用液压缸
    • WO1998012414A2
    • 1998-03-26
    • PCT/GB1997002531
    • 1997-09-18
    • INTERNATIONAL PETROLEUM EQUIPMENT LIMITEDFRIIS, Niels, Christian, Olaf
    • INTERNATIONAL PETROLEUM EQUIPMENT LIMITED
    • E21B31/113
    • E21B31/1135
    • A jar mechanism is described as comprising an outer body member (2, 4, 9, 10, 14, 17), an inner body member (1, 5, 11) which is movably mounted on the outer body member (2, 4, 9, 10, 14, 17), and a fluid chamber (35, 37, 42) which is defined by the inner (1, 5, 11) and outer body members (2, 4, 9, 10, 14, 17). Firstly, a resistance mechanism (12, 13, 48, 50) is described which is in fluid communication with the fluid chamber (35, 37, 42). The inner (1, 5, 11) and outer body members (2, 4, 9, 10, 14, 17) are moveable relative to each other between a first configuration in which the resistance mechanism (12, 13, 48, 50) resists relative movement therebetween, and a second configuration in which the resistance mechanism (12, 13, 48, 50) substantially does not resist relative movement therebetween. The resistance mechanism (12, 13, 48, 50) comprises two valve devices (58), where each valve device (58) resists movement of fluid within the fluid chamber (35, 37, 42) in one direction and the valve devices (58) are arranged to resist the movement of fluid in opposite directions. A releasable locking mechanism (5, 8) is secondly described for locking the inner body member (1, 5, 11) with respect to the outer body member (2, 4, 9, 10, 14, 17), where a piston section (48, 50) permits a load to be applied between the body members after the locking mechanism (5, 8) has released. Optionally, there is at least one flow passage to permit fluid located in the annulus between the body members to flow from one side of the locking mechanism (5, 8) to the other.
    • 一种罐机构被描述为包括一个外部主体部件(2,4,9,10,14,17),一个可移动地安装在外部主体部件(2,4)上的内部主体部件(1,5,11) 9,10,14,17)和由内侧(1,5,11)和外部本体构件(2,4,9,10,14,17)限定的流体室(35,37,42) 。 首先,描述与流体室(35,37,42)流体连通的阻力机构(12,13,48,50)。 内部(1,5,11)和外部本体构件(2,4,9,10,14,17)可以在其中电阻机构(12,13,48,50)的第一构造相对于彼此移动, 抵抗它们之间的相对运动,并且其中阻力机构(12,13,48,50)基本上不抵抗它们之间的相对运动的第二构造。 电阻机构(12,13,48,50)包括两个阀装置(58),其中每个阀装置(58)阻止在一个方向上的流体室(35,37,42)内的流体的运动和阀装置 58)布置成抵抗流体沿相反方向的运动。 第二次描述了可释放的锁定机构(5,8),用于相对于外部本体构件(2,4,9,10,14,17)锁定内部本体构件(5,5,11),其中活塞部分 (48,50)允许在所述锁定机构(5,8)释放之后在所述主体构件之间施加负载。 可选地,存在至少一个流动通道,以允许位于主体构件之间的环空中的流体从锁定机构(5,8)的一侧流动到另一个。
    • 8. 发明申请
    • JAR APPARATUS AND METHOD OF JARRING
    • JAR装置和JARRING方法
    • WO1996018021A1
    • 1996-06-13
    • PCT/US1995013991
    • 1995-10-30
    • ANDERSON, Edwin, A.
    • E21B31/113
    • E21B31/1135
    • A jar (10) includes a plurality of pistons (16) secured together to form a piston assembly (23). Piston assembly (23) is movable axially in response to an actuating pressure differential between the jar bore (17) and the borehole (19). Biasing spring (28) biases piston assembly (23) to return to a closed position when the actuating pressure differential is reduced by a predetermined amount. Piston assembly (23) forces a hammer member (32) and a movable anvil portion (30A) axially to cock the jar in response to the applied actuating pressure differential. When the pressure differential is reduced, biasing spring (28) moves anvil portion (30A) against anvil support portion (30B). Detent assembly (47) temporarily limits the velocity of hammer member (32) towards movable anvil portion (30A) after the pressure differential is reduced. Compressed nitrogen (64) in nitrogen chamber (31) biases hammer member (32) towards anvil portion (30A) to deliver a jar impact.
    • 罐(10)包括固定在一起以形成活塞组件(23)的多个活塞(16)。 活塞组件(23)响应于缸孔(17)和钻孔(19)之间的致动压差而轴向移动。 当致动压差减小预定量时,偏置弹簧(28)偏压活塞组件(23)以返回到关闭位置。 活塞组件(23)响应于所施加的致动压差,迫使锤构件(32)和可动砧部分(30A)轴向地使罐旋转。 当压力差减小时,偏置弹簧(28)将砧座部分(30A)移动到砧座支撑部分(30B)上。 在差压减小之后,止动组件(47)临时限制锤构件(32)朝向可动砧座部分(30A)的速度。 氮气室(31)中的压缩氮(64)将锤构件(32)朝向砧座部分(30A)偏置以传递罐冲击。
    • 9. 发明申请
    • BIDIRECTIONAL HYDRAULIC JAR
    • 双向液压罐
    • WO1994018428A1
    • 1994-08-18
    • PCT/NO1994000035
    • 1994-02-09
    • BAKKE OIL TOOLS ASBAKKE, Stig, Erling
    • BAKKE OIL TOOLS AS
    • E21B31/113
    • E21B31/113
    • A double-acting hydraulic striking tool, wherein a hammer's (8) upper end (9) is rigidly connected to an upper piston (10), and wherein the hammer's (8) lower end (26) is rigidly connected to a lower piston (26). The pistons (10, 27), which can be displaced within a tubular housing (11), are adapted to open and close for a forced flow of liquid from the upper end (9) of the hammer (8) towards the lower end (26). The hammer (8) is activated for downwardly directed blows by pressing against the hammer's (8) upper end (9) with a resilient force, causing the lower piston (27) to close the liquid flow, whereby the housing (11) is lifted hydraulically until the piston (27) opens for the liquid flow, and the forced spring force drives the housing (11) downwardly to impinge on the hammer's (8) lower end (26) through impact faces (34, 36). The hammer (8) is activated for upwardly directed strokes by lifting the upper end (9) of the hammer (8) as well as the housing (11) with a resilient force, so that the upper piston (10) closes for liquid, whereby the piston (10) drives the hammer's (8) upper end (9) downwardly until the piston (10) opens for liquid, whereafter the upwardly acting resilient force drives the hammer's (8) upper end (9) upwards to impinge on the housing (11) through impact faces (33, 35).
    • 一种双作用液压打击工具,其中锤(8)的上端(9)刚性地连接到上活塞(10),并且其中锤(8)的下端(26)刚性地连接到下活塞 26)。 可以在管状壳体(11)内移动的活塞(10,27)适于打开和关闭液体从锤(8)的上端(9)向下端的强制流动( 26)。 锤子(8)通过以弹性力压靠锤(8)上端(9)而被激活以进行向下定向的吹塑,使下活塞(27)封闭液体流动,从而使壳体(11)被提升 液压地直到活塞(27)打开用于液体流动,并且强制弹簧力向下驱动壳体(11),以通过冲击面(34,36)撞击锤的(8)下端(26)。 通过以弹性力提升锤子(8)的上端(9)和壳体(11),锤(8)被激活用于向上定向的冲程,使得上活塞(10)关闭液体, 由此活塞(10)向下驱动锤(8)上端(9)直到活塞(10)打开用于液体,此后向上作用的弹性力将锤(8)上端(9)向上驱动以撞击在 壳体(11)穿过冲击面(33,35)。