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    • 1. 发明授权
    • Zone isolation tools
    • 区隔离工具
    • US6102120A
    • 2000-08-15
    • US98280
    • 1998-06-16
    • Kuo-Chiang ChenHaoshi SongJack F. Lands, Jr.Wallace E. VoreckDinesh R. Patel
    • Kuo-Chiang ChenHaoshi SongJack F. Lands, Jr.Wallace E. VoreckDinesh R. Patel
    • E21B29/10E21B33/127E21B33/13E21B36/00E21B43/10
    • E21B43/105E21B29/10E21B33/1275E21B33/13E21B36/008
    • An apparatus and method for sealing an inner wall of a portion of a casing positioned in a well employs an inflatable sleeve having an outer surface and a conformable composite sleeve of curable composition extending around the outer surface of the inflatable sleeve. The inflatable sleeve is inflated to compress the composite sleeve against the surface of the inner casing wall. A local, activatable energy source, positioned downhole to deliver heat to the composite sleeve, is activated to cure the composite sleeve to form a hardened sleeve. The hardened sleeve presses against the inner wall of the casing portion to create a fluid seal. The embodiments shown have a number of preferred features. The local energy source includes an exothermic heat energy source for generating heat energy to cure the composite sleeve. The composite sleeve includes a mixture of resin and a curing agent, and the exothermic heat source includes thermite. The thermite includes a composition having a metal oxide and a reductant. A starter mix is positioned adjacent the exothermic heat energy source, and the starter mix is ignited to start an exothermic reaction in the heat energy source. A conformable layer extends around the composite sleeve, with the layer serving to form a seal between the composite sleeve and the inner wall of the casing portion.
    • 用于密封定位在井中的壳体的一部分的内壁的装置和方法采用具有可膨胀套筒的可膨胀套筒,所述可充气套管具有围绕可充气套筒的外表面延伸的可固化组合物的外表面和适形复合套筒。 充气套筒被充气以将复合套筒压靠在内壳壁的表面上。 激活能够定位在井下以将热传递到复合套筒的局部可活化能量源,以固化复合套筒以形成硬化套筒。 硬化的套筒压靠壳体部分的内壁以产生流体密封。 所示的实施例具有多个优选特征。 局部能量源包括用于产生热能以固化复合套筒的放热热能源。 复合套筒包括树脂和固化剂的混合物,放热热源包括热铝。 所述热铝包括具有金属氧化物和还原剂的组合物。 起动器混合物位于放热热能源附近,并且起动器混合物被点燃以在热能源中开始放热反应。 适形层围绕复合套筒延伸,该层用于在复合套筒和壳体部分的内壁之间形成密封。
    • 2. 发明授权
    • Sealing well casings
    • 密封套管
    • US5833001A
    • 1998-11-10
    • US768027
    • 1996-12-13
    • Haoshi SongJack F. Lands, Jr.Wallace E. Voreck
    • Haoshi SongJack F. Lands, Jr.Wallace E. Voreck
    • E21B29/10E21B33/127E21B33/13E21B36/00E21B43/10
    • E21B43/105E21B29/10E21B33/1275E21B33/13E21B36/008
    • An apparatus and method for sealing an inner wall of a portion of a casing positioned in a well employs an inflatable sleeve having an outer surface and a conformable composite sleeve of curable composition extending around the outer surface of the inflatable sleeve. The inflatable sleeve is inflated to compress the composite sleeve against the surface of the inner casing wall. A local, activatable energy source, positioned downhole to deliver heat to the composite sleeve, is activated to cure the composite sleeve to form a hardened sleeve. The hardened sleeve presses against the inner wall of the casing portion to create a fluid seal. The embodiments shown have a number of preferred features. The local energy source includes an exothermic heat energy source for generating heat energy to cure the composite sleeve. The composite sleeve includes a mixture of resin and a curing agent, and the exothermic heat source includes thermite. The thermite includes a composition having a metal oxide and a reductant. A starter mix is positioned adjacent the exothermic heat energy source, and the starter mix is ignited to start an exothermic reaction in the heat energy source. A conformable layer extends around the composite sleeve, with the layer serving to form a seal between the composite sleeve and the inner wall of the casing portion.
    • 用于密封定位在井中的壳体的一部分的内壁的装置和方法采用具有可膨胀套筒的可膨胀套筒,所述可充气套管具有围绕可充气套筒的外表面延伸的可固化组合物的外表面和适形复合套筒。 充气套筒被充气以将复合套筒压靠在内壳壁的表面上。 激活能够定位在井下以将热传递到复合套筒的局部可活化能量源,以固化复合套筒以形成硬化套筒。 硬化的套筒压靠壳体部分的内壁以产生流体密封。 所示的实施例具有多个优选特征。 局部能量源包括用于产生热能以固化复合套筒的放热热能源。 复合套筒包括树脂和固化剂的混合物,放热热源包括热铝。 所述热铝包括具有金属氧化物和还原剂的组合物。 起动器混合物位于放热热能源附近,并且起动器混合物被点燃以在热能源中开始放热反应。 适形层围绕复合套筒延伸,该层用于在复合套筒和壳体部分的内壁之间形成密封。
    • 3. 发明授权
    • Cooling system for downhole tools
    • 井下工具冷却系统
    • US06336408B1
    • 2002-01-08
    • US09240955
    • 1999-01-29
    • Robert A. ParrottHaoshi SongKuo-Chiang Chen
    • Robert A. ParrottHaoshi SongKuo-Chiang Chen
    • F42B300
    • E21B47/011E21B36/001Y10S102/704Y10S102/705
    • Apparatus and method for cooling a component inside a tool includes a container and a plurality of heat sinks positioned in the container. The components are positioned in the container with the heat sinks for maintaining a reduced temperature inside the container. Further, an insulating layer and a reflective layer surround the heat sinks and components to reduce heat transfer. Alternatively, the container can have a hollow wall that encloses the space in which a heat sink material (such as an eutectic material) is disposed. The components to be protected are located in the container. The eutectic material includes a composition having tin and zinc. The insulating layer includes a container that stores a vacuum layer, such as a dewar flask.
    • 用于冷却工具内的部件的装置和方法包括容器和位于容器中的多个散热器。 这些部件定位在具有散热器的容器中,以保持容器内的降低的温度。 此外,绝缘层和反射层围绕散热器和部件以减少热传递。 或者,容器可以具有封闭其中设置有散热材料(例如共晶材料)的空间的中空壁。 待保护的部件位于容器中。 共晶材料包括具有锡和锌的组合物。 绝缘层包括容纳真空层的容器,例如杜瓦瓶。
    • 4. 发明申请
    • Wide Bandwidth Borehole Dipole Source
    • 宽带宽钻孔偶极子源
    • US20150143888A1
    • 2015-05-28
    • US14406502
    • 2012-06-11
    • Chung ChangHaoshi SongWei Zhang
    • Chung ChangHaoshi SongWei Zhang
    • G01V1/52E21B47/14G01V1/04
    • G01V1/52E21B47/14G01V1/04G01V1/053G01V1/147G01V1/155G01V1/40G01V1/44G01V2210/121G01V2210/1299G01V2210/1429Y10S181/401
    • A dipole source for borehole acoustic logging is provided, including a cylindrical shell, a center beam coupled to the cylindrical shell and a movable projector inside the cylindrical shell to impact the center beam. The dipole source includes a cavity acoustically insulating the interior of the cylindrical shell from the exterior of the cylindrical shell. An acoustic logging tool for making measurements of a substrate surrounding a borehole with a body insertable in the borehole is also provided. The body includes an acoustic detector and a dipole source as above, along the axial length. The acoustic logging tool may include a control unit to process data collected from the acoustic detector and obtain information about the substrate surrounding the borehole. According to embodiments disclosed herein, a method for operating a dipole source and an acoustic logging tool as above is provided.
    • 提供了一种用于井眼声学测井的偶极源,包括圆柱形壳体,耦合到圆柱形壳体的中心梁和圆柱形壳体内的可移动投影仪以撞击中心梁。 偶极源包括将圆柱形壳体的内部与圆柱形壳体的外部隔离的腔体。 还提供了一种声学测井工具,用于利用可插入钻孔中的主体来测量钻孔周围的基底。 身体沿轴向长度包括如上所述的声检测器和偶极源。 声学测井工具可以包括控制单元,用于处理从声学检测器收集的数据,并获得有关围绕钻孔的基底的信息。 根据本文公开的实施例,提供了如上所述的用于操作偶极源和声学测井工具的方法。
    • 6. 发明授权
    • Mulitiple spacing resistivity measurements with receiver arrays
    • 接收器阵列的多空间电阻率测量
    • US06184685B2
    • 2001-02-06
    • US09255302
    • 1999-02-22
    • Martin D. PaulkHaoshi Song
    • Martin D. PaulkHaoshi Song
    • G01V318
    • G01V3/30
    • A wireline, coiled tubing, and measurement while drilling resistivity tool having three or more receivers is disclosed. This results in a tool capable of gathering substantial resistivity data about a subterranean formation while being drawn quickly past a borehole wall. One embodiment of this resistivity tool includes four receivers and a pair of transmitters, resulting in six resistivity measurements from each firing of a transmitter. The transmitters are arranged to obtain a regularly spaced series of resistivity measurements. The transmitters may be fired at two or more frequencies to result in further information about the formation. Another embodiment of this resistivity tool places its transmitters and receivers to obtain a number of redundant resistivity readings, resulting in error checking and increased reliability. For enhanced performance, transceivers may also be used. An analogous method is also disclosed.
    • 公开了一种电缆,连续油管和测量,同时具有三个或更多个接收器的钻井电阻率工具。 这导致一种工具能够在被快速地穿过井眼壁的同时收集关于地下地层的实质电阻率数据。 该电阻率工具的一个实施例包括四个接收器和一对发射器,其导致来自发射器的每次点火的六个电阻率测量。 发射器被布置成获得规则间隔的一系列电阻率测量。 发射机可以以两个或更多个频率发射,以产生关于地层的更多信息。 该电阻率工具的另一个实施例使其发射器和接收器获得多个冗余电阻率读数,导致错误检查和增加的可靠性。 为了增强性能,还可以使用收发器。 还公开了类似的方法。
    • 7. 发明授权
    • Load cells for sensing weight and torque on a drill bit while drilling a
well bore
    • 称重传感器用于在钻孔时感测钻头上的重量和扭矩
    • US5386724A
    • 1995-02-07
    • US115285
    • 1993-08-31
    • Pralay K. DasHaoshi Song
    • Pralay K. DasHaoshi Song
    • E21B47/00G01L5/00G01L5/16
    • G01L5/161E21B47/0006G01L5/0042
    • A load cell for sensing weight and torque on a drill bit during a drilling operation includes a cylindrical load cell made from a material with minimum residual stress. A plurality of strain gages are arranged symmetrically on each load cell and electrically coupled to form two Wheatstone bridges. The load cells are mounted 180 degrees apart in radial pockets drilled in a drill collar wall. A half Wheatstone bridge from one load cell is electrically coupled with a half Wheatstone bridge from the other load cell to form a Wheatstone bridge for measuring WOB and a similar coupling is made to form another Wheatstone bridge for measuring TOB. In another embodiment, additional strain gages in another Wheatstone bridge measure differential pressure. The output of the pressure and weight bridges are electrically combined to provide a weight signal unaffected by differential pressure fluctuations. The load cells are force fit in the radial pockets in the drill collar and a cap is installed on each pocket housing a load cell to protect the load cell from drilling fluid. The strain gages in each load cell are placed to minimize the effects of bending, hydrostatic pressure, temperature, differential pressure and cross talk between WOB and TOB measurements. The load cells can be replaced easily and drill collar gauging is not required. Since the strain gages are not directly attached to the drill collar, the high residual stress in the drill collar does not cause the strain gages to drift.
    • 用于在钻孔操作期间感测钻头上的重量和扭矩的测力传感器包括由具有最小残余应力的材料制成的圆柱形测力传感器。 多个应变计对称地布置在每个测力传感器上并电耦合以形成两个惠斯登电桥。 称重传感器在钻铤壁上钻出的径向凹槽中180度分开安装。 来自一个称重传感器的一个惠斯登电桥与另一个称重传感器的一半惠斯通电桥电耦合,形成用于测量WOB的惠斯登电桥,并形成一个类似的耦合,形成用于测量TOB的另一个惠斯通电桥。 在另一个实施例中,另一惠斯通电桥中的附加应变计测量差压。 压力和重量桥梁的输出电气组合以提供不受压差波动影响的重量信号。 称重传感器强制配合在钻铤中的径向凹穴中,并且在每个容纳有负载传感器的口袋上安装盖,以保护测力传感器免受钻井液体的影响。 放置每个称重传感器中的应变计以最小化WOB和TOB测量之间的弯曲,静水压力,温度,压差和串扰的影响。 可以轻松更换称重传感器,不需要钻铤测量。 由于应变计不直接附着在钻铤上,钻铤中的高残余应力不会导致应变计漂移。