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    • 3. 发明授权
    • Temporary plug system
    • 临时插头系统
    • US5479986A
    • 1996-01-02
    • US236436
    • 1994-05-02
    • John C. GanoJim LongbottomBill W. LoughridgeLance E. Brothers
    • John C. GanoJim LongbottomBill W. LoughridgeLance E. Brothers
    • E21B23/00E21B23/04E21B33/12E21B33/134E21B34/06E21B34/10E21B33/13
    • E21B23/006E21B23/00E21B23/04E21B33/12E21B33/134E21B34/063E21B34/10E21B34/102
    • A method and apparatus for establishing a fluid plug within a well bore which can then be substantially destroyed upon demand to permit reestablishment of the well within a short period of time thereafter. Increased pressure actuates a plug rupture mechanism which destroys the integrity of the plug and allows the plug to be substantially eliminated from the wellbore within a short period of time thereafter. In described preferred embodiments, the plug is comprised of a salt and sand mixture which is highly resistant to fluid compressive forces but is subject to destruction under shear tension forces. The plug may be encased within a plug sleeve which is, in turn, encased within a plug housing which may be disposed within the well bore. The sleeve is associated within the housing so that fluid may be displaced about the plug sleeve as the housing is disposed into the well bore. When the plug has reached the proper position within the well bore, the plug sleeve may be set within the housing such that fluid flow is stopped. A shear member is contained within the plug sleeve and detachably connected thereto. When required, the shear member may be released from the surrounding plug sleeve and forced against the plug to substantially destroy the integrity of the plug through introduction of shear tension forces within the plug structure and reestablish fluid flow through the housing. The plug is further dissolved into well bore fluids to substantially destroy it.
    • 一种用于在井眼内建立流体塞的方法和装置,其随后可以在需要时基本上被破坏以允许在其后的短时间内重新建立井。 增加的压力致动塞子破裂机构,其破坏塞子的完整性,并允许塞子在此后的短时间内基本上从井筒中消除。 在所描述的优选实施例中,塞子由盐和砂混合物组成,其对流体压缩力具有高度抵抗力,但是在剪切张力下被破坏。 塞子可以封装在塞子套筒内,该塞子套筒又被封装在可以设置在井眼内的塞子壳体内。 套筒连接在壳体内,使得当壳体设置在井眼中时,流体可围绕塞子套筒移动。 当塞子已经到达井眼内的适当位置时,塞子套筒可以设置在壳体内,使得流体流动停止。 剪切构件容纳在插塞套筒内并可拆卸地连接到其上。 当需要时,剪切构件可以从周围的塞子套筒释放并且通过在塞子结构内引入剪切张力并且重新建立通过壳体的流体流动而迫使其抵靠塞子来基本上破坏塞子的完整性。 塞子进一步溶解到井筒流体中以基本上破坏它。
    • 5. 发明授权
    • Decentralizing centralizing locating and orienting subsystems and
methods for subterranean multilateral well drilling and completion
    • 集权定位和定向子系统的分散和地下多孔钻井和完井的方法
    • US5613559A
    • 1997-03-25
    • US513149
    • 1995-08-09
    • Jimmie R. WilliamsonJohn C. GanoDavid L. Reesing
    • Jimmie R. WilliamsonJohn C. GanoDavid L. Reesing
    • E21B7/06E21B17/10E21B17/22E21B23/00E21B23/02E21B23/03E21B23/12E21B33/1295E21B41/00F16L7/00F16L9/16E21B17/02
    • E21B17/1085E21B17/10E21B17/1007E21B17/22E21B23/00E21B23/002E21B23/02E21B23/03E21B33/1295E21B41/0042E21B7/061F16L7/00F16L9/16
    • A decentralizer for a diverter, a centralizing guide bushing and a downhole-deployable locating and orienting subsystem. The subsystem is capable of three modes of operation: (a) a running mode in which an actuating mandrel is in a first axial limit position with respect to a common mandrel, the actuating mandrel placing first and second double-acting springs in a stowed position wherein locating and orienting keys are retracted radially inwardly with respect to the common mandrel to shield the locating and orienting keys from substantial contact with a surrounding well flow conductor as the common mandrel traverses therethrough, (b) a locating mode in which the actuating mandrel is in an intermediate axial position with respect to the common mandrel, the actuating mandrel placing the first and second double-acting springs in a deployed position resiliently to bias the locating and orienting keys radially outwardly with respect to the common mandrel to seek a locating and orienting profile on an inner surface of a surrounding honed bore within the surrounding well flow conductor, and (c) a set mode in which the actuating mandrel is in a second axial limit position with respect to the common mandrel, the actuating mandrel directly engaging and stiffly retaining the locating and orienting keys in engagement with the locating and orienting profile thereby to fix the common mandrel in a desired location and orientation with respect to the honed bore.
    • 用于分流器的分散器,集中导向套管和井下可部署的定位和定向子系统。 子系统能够有三种操作模式:(a)运行模式,其中致动心轴相对于公共心轴处于第一轴向极限位置,致动心轴将第一和第二双作用弹簧放置在收起位置 其中定位和定向键相对于公共心轴径向向内缩回,以在公共心轴穿过其时屏蔽定位和定向键与周围井流导体的实质接触,(b)定位模式,其中致动心轴是 在相对于公共心轴的中间轴向位置处,致动心轴将弹性地将第一和第二双作用弹簧放置在展开位置中,以相对于公共心轴径向向外偏置定位和定向键,以寻找定位和定向 在周围的井流导体内的周围的珩磨孔的内表面上形成轮廓,以及(c)设置模式 致动心轴相对于公共心轴处于第二轴向极限位置,致动心轴直接接合并且刚性地保持定位和定向键与定位和定向轮廓接合,从而将公共心轴固定在期望的位置, 相对于珩磨孔的取向。
    • 7. 发明授权
    • Decentralizing, centralizing, locating and orienting subsystems and
methods for subterranean multilateral well drilling and completion
    • 地下多层钻井和完井的分散化,集中化,定位和定向子系统和方法
    • US5566763A
    • 1996-10-22
    • US488586
    • 1995-06-08
    • Jimmie R. WilliamsonJohn C. GanoDavid L. Reesing
    • Jimmie R. WilliamsonJohn C. GanoDavid L. Reesing
    • E21B7/06E21B17/10E21B17/22E21B23/00E21B23/02E21B23/03E21B23/12E21B33/1295E21B41/00F16L7/00F16L9/16E21B33/10
    • E21B17/1085E21B17/10E21B17/1007E21B17/22E21B23/00E21B23/002E21B23/02E21B23/03E21B33/1295E21B41/0042E21B7/061F16L7/00F16L9/16
    • A decentralizer for a diverter, a centralizing guide bushing and a downhole-deployable locating and orienting subsystem. The subsystem is capable of three modes of operation: (a) a running mode in which an actuating mandrel is in a first axial limit position with respect to a common mandrel, the actuating mandrel placing first and second double-acting springs in a stowed position wherein locating and orienting keys are retracted radially inwardly with respect to the common mandrel to shield the locating and orienting keys from substantial contact with a surrounding well flow conductor as the common mandrel traverses therethrough, (b) a locating mode in which the actuating mandrel is in an intermediate axial position with respect to the common mandrel, the actuating mandrel placing the first and second double-acting springs in a deployed position resiliently to bias the locating and orienting keys radially outwardly with respect to the common mandrel to seek a locating and orienting profile on an inner surface of a surrounding honed bore within the surrounding well flow conductor, and (c) a set mode in which the actuating mandrel is in a second axial limit position with respect to the common mandrel, the actuating mandrel directly engaging and stiffly retaining the locating and orienting keys in engagement with the locating and orienting profile thereby to fix the common mandrel in a desired location and orientation with respect to the honed bore.
    • 用于分流器的分散器,集中导向套管和井下可部署的定位和定向子系统。 子系统能够有三种操作模式:(a)运行模式,其中致动心轴相对于公共心轴处于第一轴向极限位置,致动心轴将第一和第二双作用弹簧放置在收起位置 其中定位和定向键相对于公共心轴径向向内缩回,以在公共心轴穿过其时屏蔽定位和定向键与周围井流导体的实质接触,(b)定位模式,其中致动心轴是 在相对于公共心轴的中间轴向位置处,致动心轴将弹性地将第一和第二双作用弹簧放置在展开位置中,以相对于公共心轴径向向外偏置定位和定向键,以寻找定位和定向 在周围的井流导体内的周围的珩磨孔的内表面上形成轮廓,以及(c)设置模式 致动心轴相对于公共心轴处于第二轴向极限位置,致动心轴直接接合并且刚性地保持定位和定向键与定位和定向轮廓接合,从而将公共心轴固定在期望的位置, 相对于珩磨孔的取向。