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    • 3. 发明授权
    • Retrieving mechanism
    • 检索机制
    • US4648445A
    • 1987-03-10
    • US808586
    • 1985-12-13
    • Kenneth D. Caskey
    • Kenneth D. Caskey
    • E21B23/06E21B31/18
    • E21B31/18E21B23/06
    • A retrieving mechanism for subsurface releasing and retrieving of a downhole tool. The apparatus includes an overshot defining a central opening therethrough and an annular cavity therein and a mandrel positionable in the overshot central opening. A slotted C-ring with an internally threaded surface is annularly positioned in the cavity in the overshot. The mandrel includes an externally threaded portion. Longitudinal insertion of the mandrel in the overshot results in ratcheting expansion and contraction of the ring for threaded engagement with the mandrel. The threaded surfaces define a thread profile having a first surface, angled with respect to a central axis of the apparatus, which facilitates the longitudinal insertion of the mandrel in the ring, and a second surface, extending normally to the apparatus central axis, which prevents longitudinal disengagement. A seal is located above the ring for sealing engagement with a mandrel sealing surface. In a lower portion of the overshot, a rotation plug extends radially inwardly, and on a lower portion of the mandrel a corresponding lug extends radially outwardly. The lugs may be positioned adjacent one another for selectively preventing rotation of the overshot relative to the mandrel.
    • 用于井下工具的地下释放和回收的回收机构。 该装置包括限定穿过其中的中心开口和其中的环形腔的突出部,以及可定位在过冲中心开口中的心轴。 具有内螺纹表面的开槽C形环环形定位在过冲中的空腔中。 心轴包括外螺纹部分。 心轴在纵向上的纵向插入导致用于与心轴螺纹接合的环的棘轮膨胀和收缩。 螺纹表面限定了具有第一表面的螺纹轮廓,第一表面相对于设备的中心轴线成角度,这有助于心轴在环中的纵向插入,以及正常延伸到设备中心轴线的第二表面,其阻止 纵向脱离。 密封件位于环上方,用于与心轴密封表面密封接合。 在过冲的下部中,旋转塞径向向内延伸,并且在心轴的下部上,相应的凸耳径向向外延伸。 凸耳可以彼此相邻地定位,以选择性地防止相对于心轴的转动。
    • 4. 发明授权
    • Coiled tubing deployed inflatable stimulation tool
    • 螺旋管部署充气刺激工具
    • US5832998A
    • 1998-11-10
    • US433787
    • 1995-05-03
    • Kenneth L. DeckerJohn H. YonkerWallace G. Wilke, Jr.Jeffrey S. WalterJames C. TuckerKenneth W. McIntyreMichael L. ConnellKenneth D. Caskey
    • Kenneth L. DeckerJohn H. YonkerWallace G. Wilke, Jr.Jeffrey S. WalterJames C. TuckerKenneth W. McIntyreMichael L. ConnellKenneth D. Caskey
    • E21B23/00E21B33/127
    • E21B23/006E21B33/127
    • A resettable well stimulation tool is lowerable into a well bore on a length of tubing through which pressurized fluid may be forced into the tool to inflate a packer portion carried by the tool and then discharge a stimulation fluid into a portion of the well bore sealed off by the packer portion. During the inflation cycle of the tool pressurized fluid is forced downwardly into an annular tool body inflation chamber that communicates with an inflatable packer carried by the tool body. A perforated tube member coaxially carried in the inflation chamber serves to vertically distribute the inflation pressure along the length of the packer and assure its even inflation. In a straddle packer embodiment of the tool inflation and stimulation passages extend internally through the tool and are sealingly separated by an internal crossover structure, with the inflation passage being in communication with upper and lower packer members. The internal inflation passage eliminates the previous necessity of communicating the upper and lower packers with inflation tubing externally coiled around the tool body. A longitudinally intermediate portion of the tool body has a telescoping expansion joint portion to compensate for the longitudinal forces exerted on the body by inflation of the packers. The expansion joint is biased, by both mechanical spring pressure and internal fluid pressure, toward a retracted position thereof.
    • 可重置的井刺激工具可以降低到一段管道上的井眼中,加压流体可以通过该管道被迫进入工具中,以使由工具承载的封隔器部分膨胀,然后将刺激流体排放到密封的井筒的一部分中 通过封隔器部分。 在工具的充气循环期间,加压流体被迫向下进入与由工具主体承载的充气封隔器连通的环形工具体充气室。 同轴地承载在充气室中的穿孔管构件用于沿着封隔器的长度垂直分布充气压力并确保其均匀的充气。 在跨越打包器的实施例中,工具膨胀和刺激通道在内部延伸穿过工具,并且通过内部交叉结构密封地分开,充气通道与上部和下部封隔器构件连通。 内部充气通道消除了先前需要将上部和下部封隔器与外部盘绕在工具体上的充气管连通的需要。 工具主体的纵向中间部分具有伸缩式膨胀接头部分,以通过封隔器的充气来补偿作用在身体上的纵向力。 膨胀接头通过机械弹簧压力和内部流体压力被偏压到其缩回位置。
    • 5. 发明授权
    • Directionally oriented slotting method
    • 定向开槽方式
    • US5335724A
    • 1994-08-09
    • US98469
    • 1993-07-28
    • James J. VendittoKenneth D. Caskey
    • James J. VendittoKenneth D. Caskey
    • E21B23/00E21B43/114E21B43/119E21B43/26E21B47/02
    • E21B23/006E21B43/114E21B43/119E21B43/26E21B47/02
    • A method of fracturing a subterranean formation having a well bore extending thereinto. The method comprises the steps of: (a) placing a jetting tool in the well bore such that the jetting tool is positioned within the subterranean formation, the jetting tool including a jetting nozzle; (b) orienting, by rotating the jetting tool about a longitudinal axis, the jetting tool such that the directional orientation of the jetting nozzle substantially corresponds to a predetermined fracturing direction; and (c) cutting a slot in the subterranean formation (and/or casing) by substantially maintaining the jetting nozzle orientation established in step (b) while both (1) spraying a jetting fluid out of the first jetting nozzle and (2) moving the jetting tool longitudinally within the well bore along the longitudinal axis.
    • 一种破裂具有延伸到其中的井眼的地层的方法。 该方法包括以下步骤:(a)将喷射工具放置在井眼中,使得喷射工具位于地层内,喷射工具包括喷射喷嘴; (b)通过围绕纵向轴线旋转喷射工具来定向喷射工具,使得喷射喷嘴的方向取向基本上对应于预定的压裂方向; (c)通过基本上保持步骤(b)中确定的喷射喷嘴方向,同时(1)将喷射流体喷射出第一喷射喷嘴和(2)移动 所述喷射工具沿着所述纵向轴线纵向地在所述井眼内。
    • 6. 发明授权
    • Subsurface control valve
    • 地下控制阀
    • US4651829A
    • 1987-03-24
    • US808691
    • 1985-12-13
    • Donald F. HushbeckKenneth D. Caskey
    • Donald F. HushbeckKenneth D. Caskey
    • E21B34/00E21B34/12E21B34/14
    • E21B34/12E21B34/14E21B2034/002
    • A full opening subsurface control valve for use in subsurface closure of a well annulus. The valve includes a body with a sleeve reciprocably disposed in the valve body. The body is releasably attached to an upper tool string portion, and the sleeve is attached to a lower tool string portion. An actuator arm, mounted on the body and stationary with respect thereto, engages a ball valve element. When the body and sleeve are in a relatively converged position, the ball valve element is in a closed position. When the body and sleeve are in a relatively extended position, the ball valve is in an open position, such that the ball valve element, body and sleeve define a substantially unobstructed flow passage through the valve. A spring is utilized for relatively biasing the body and sleeve toward the converged position. The weight of the lower tool string portion overcomes the spring force such that the valve is maintained in an open position as it is longitudinally positioned in the well bore. A pressure balancing piston is provided for balancing forces exerted by test pressurization of the valve so that undesired opening of the valve is prevented.
    • 用于井环的地下封闭的全开式地下控制阀。 阀包括具有可往复运动地布置在阀体中的套筒的主体。 主体可释放地附接到上工具串部分,并且套筒附接到下工具串部分。 安装在本体上并相对于其固定的致动器臂接合球阀元件。 当主体和套筒处于相对会聚位置时,球阀元件处于关闭位置。 当主体和套筒处于相对延伸的位置时,球阀处于打开位置,使得球阀元件,主体和套筒限定通过该阀的基本无障碍的流动通道。 使用弹簧来使身体和套筒朝向会聚位置相对偏置。 下部工具串部分的重量克服弹簧力,使得阀在纵向定位在井眼中时保持在打开位置。 提供压力平衡活塞用于平衡通过阀的试验加压施加的力,从而防止阀的不期望的打开。
    • 8. 发明授权
    • Fluid control valve
    • 流体控制阀
    • US5168931A
    • 1992-12-08
    • US768055
    • 1991-09-30
    • Kenneth D. CaskeyTheron A. Scott
    • Kenneth D. CaskeyTheron A. Scott
    • E21B23/00E21B33/129E21B34/06E21B34/12
    • E21B23/006E21B33/1291E21B33/1294E21B34/06E21B34/12
    • A fluid control valve for use in retaining well treatment fluids above a circulating valve and packer in a tool string. The fluid control valve comprises a ball seat with a seating surface thereon, a sealing ball for sealingly engaging the sealing surface, and a push rod. The ball seat and push rod are relatively movable so that as the packer is set and the circulating valve is moved toward a closed position, the push rod is brought into engagement with the ball so that it is moved off the ball seat, allowing fluid flow thereby. A ball cage extends from the ball seat for guiding the ball and limiting radial movement thereof when the circulating valve is open. A retrieving neck may be connected to the fluid control valve so that the fluid control valve may be retrieved while leaving the rest of the tool string in the well bore.
    • 一种流体控制阀,用于将井处理流体保持在工具串中的循环阀和封隔器上方。 流体控制阀包括其上具有就座表面的球座,用于密封地接合密封表面的密封球和推杆。 球座和推杆是可相对移动的,因此当封隔器被固定并且循环阀向着关闭位置移动时,推杆与球接合,使得其移离球座,允许流体流动 从而。 球阀从球座延伸,用于引导球,并在循环阀打开时限制其径向运动。 检索颈部可以连接到流体控制阀,使得可以在将工具串的其余部分留在井眼中的同时取回流体控制阀。