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    • 113. 发明授权
    • Open-hole test method and apparatus for subterranean wells
    • 地下井的露天试验方法和装置
    • US06491104B1
    • 2002-12-10
    • US09685920
    • 2000-10-10
    • Curtis L. WilieJackie M. LaFontaineTommy F. Grigsby
    • Curtis L. WilieJackie M. LaFontaineTommy F. Grigsby
    • E21B3312
    • E21B49/088E21B33/124E21B43/08
    • The invention comprises a tubing assembly for use in testing an unconsolidated open-hole portion of a well bore located below a cased portion of the well bore and a method of using the assembly. The tubing assembly comprises an elongated tubing string extending from a well surface into the unconsolidated open-hole portion of the open hole, an open-hole packer mounted on the tubing string for use in sealingly engaging the unconsolidated open-hole portion of the well bore, a casing packer mounted on the tubing string between the open-hole packer and the well surface for sealingly engaging the cased portion of the well bore and a sand control device connected to the tubing string below the openhole packer. The assembly may further comprise additional open-hole packers and sand control devices mounted on the tubing string. Segments of the tubing string may be retrievable. The assembly may have one or more tubing disconnects mounted to the tubing string to disconnect segments of the tubing assembly. The tubing string may further comprise a selective flow device for selectively controlling the flow of well fluids from the well bore into the tubing string.
    • 本发明包括用于测试位于井筒的套管部分下方的井眼的未固结的开孔部分的管道组件和使用该组件的方法。 管道组件包括从井表面延伸到开孔的未合并的开孔部分的细长管柱,安装在油管柱上的开孔封隔器,用于密封地接合井眼的未固结的开孔部分 安装在开孔封隔器和井表面之间的管柱上的套管封隔器,用于密封地接合井筒的套管部分,以及连接到开孔封隔器下方的管柱的防砂装置。 组件还可以包括安装在管柱上的附加的开孔封隔器和防砂装置。 油管柱的分段可以是可回收的。 组件可以具有安装到油管柱的一个或多个油管断开件,以断开油管组件的段。 油管柱还可包括选择性流动装置,用于选择性地控制井井流体从井眼进入油管柱的流动。
    • 115. 发明授权
    • Downholed system and method for determining formation properties
    • 下钻系统和确定地层特性的方法
    • US6092416A
    • 2000-07-25
    • US834336
    • 1997-04-16
    • Frank R. HalfordWalter R. BensonClive P. EckersleyAndrew L. Kurkjian
    • Frank R. HalfordWalter R. BensonClive P. EckersleyAndrew L. Kurkjian
    • E21B49/08E21B49/10E21B7/04
    • E21B49/088E21B49/10
    • In this invention, drill pipe or tubing is attached to a sampling tool that is suspended in a borehole. A wireline cable also connects the tool to surface equipment and establishes electrical communication between the tool and the surface equipment. A valve located in the docking head assembly controls fluid flow between the borehole and the drill pipe through a port located within the drill pipe assembly which is opened and closed as required. During operations, the tool takes fluid samples from the formation and analyzes them for contamination levels. Unacceptable fluid is pumped or flowed through the tool via a flowline and into the drill pipe where it is stored until it is disposed of at the surface. Once the flowing fluid reaches acceptable levels of contamination, this fluid is pumped or flowed into a sample chamber(s) in the tool. Once sampling is completed the contaminated fluid is forced to the surface by opening the port and pumping a different fluid down the borehole annulus, through the port and into the tool below the contaminated fluid and thereby filling the drill pipe and forcing the contaminated fluid up the drill pipe and to the surface, instead of discarding the fluid into the borehole or storing the fluid in the tool. This invention allows for larger amounts of fluid to be retrieved from the formation which results in cleaner fluid samples and better information about the formation. Moreover the nature of the pressure data acquired both during periods of flow and shut-in can be used to deduce formation permeability and permeability anisotropy.
    • 在本发明中,钻杆或管道连接到悬挂在钻孔中的采样工具。 有线电缆还将工具连接到地面设备,并建立工具和地面设备之间的电气连通。 位于对接头组件中的阀门通过位于钻管组件内的端口控制钻孔和钻杆之间的流体流动,所述端口根据需要打开和关闭。 在操作过程中,该工具从地层采集流体样品,并对其进行污染水平分析。 不可接受的流体通过流线被泵送或流过工具,并进入钻管,在那里存储,直到其被放置在表面处。 一旦流体流体达到可接受的污染水平,该流体被泵送或流入工具中的样品室。 一旦采样完成,通过打开端口并将不同的流体从钻孔环通过端口并进入工具下方的被污染的流体,从而将受污染的流体压在表面上,从而填充钻杆并迫使污染的流体向上 钻杆和表面,而不是将流体丢弃到钻孔中或将流体存储在工具中。 本发明允许从地层中取出较大量的流体,这导致清洁的流体样品和关于地层的更好的信息。 此外,在流动和关闭期间获得的压力数据的性质可用于推导地层渗透率和渗透率各向异性。
    • 118. 发明授权
    • Drill stem testing system
    • 钻杆测试系统
    • US4898236A
    • 1990-02-06
    • US22128
    • 1987-03-05
    • David Sask
    • David Sask
    • E21B17/00E21B33/124E21B33/127E21B34/06E21B47/06E21B49/08
    • E21B49/088E21B17/003E21B33/1243E21B33/1275E21B34/06E21B34/066E21B47/06E21B49/084
    • A drill stem testing system which does not require rotation or axial displacement of an associated drill string to actuate valves and pumps is described. The system includes a drill stem constructed in a number of sections which are interconnected with screw-type connections. The housing contains test-related devices such as a pump for inflating packers with wellbore fluids to isolate a test region, a packer deflation valve for exhausting fluids from the packers when testing is complete, a test flow valve for introducing wellbore test flows into the housing, and a pressure equalization valve for placing the test region in communication with external wellbore regions prior to packer deflation. Each of these devices is adapted for electric actuation and contacts an internal power line extending centrally through the interior of the housing. The power line is construced in line segments which mate with one another when their associated drill stem housing sections are joined to provide a continuous power flow path. An external power line is extended from the surface through a supporting drill string to engage the internal power line. Power switching devices permit an operator to apply power selectively to each of the test-related devices to effect a testing procedure.
    • 描述了不需要旋转或轴向移动相关联的钻柱以致动阀和泵的钻杆测试系统。 该系统包括由多个部分构成的钻杆,其与螺旋型连接件相互连接。 壳体包含测试相关设备,例如用于充气封隔器的泵,其具有用于隔离测试区域的井眼流体​​,用于在测试完成时从封隔器排出流体的封隔器放气阀,用于将井筒测试流引入壳体 以及用于在封隔器通气之前将测试区域与外部井筒区域连通的压力平衡阀。 这些设备中的每一个适于电动致动并且接触内部电力线,其中心地延伸穿过壳体的内部。 当它们相关联的钻杆壳体部分连接以提供连续的动力流动路径时,电力线被构造成彼此配合的线段。 外部电源线从表面延伸穿过支撑钻柱以接合内部电力线。 电力交换设备允许操作者选择性地对每个测试相关设备施加电力以实现测试过程。
    • 120. 发明授权
    • Bottom hole sampler and safety valve and valve therefor
    • 底孔取样器及安全阀及阀门
    • US4610308A
    • 1986-09-09
    • US686576
    • 1984-12-27
    • Dale E. Meek
    • Dale E. Meek
    • E21B34/00E21B34/10E21B49/08
    • E21B49/088E21B34/10E21B2034/002
    • In the representative embodiment of the invention disclosed herein, upper and lower valve means including rotatable ball members cooperatively seated on axially-movable annular seats are spatially arranged within a tubular housing and independently controlled by upper and lower valve-actuator means. Pressure-responsive means maintain the valve seats sealingly engaged with the ball members regardless of whether the pressure within the sample chamber is greater than or less than the exterior pressure. Reset means coupled to the valve-actuator means allow the valve means to be manually opened and closed while the new and improved sample-collecting tool is at the surface without having to disassemble the tool.
    • 在本文公开的本发明的代表性实施例中,包括可旋转的球形构件的协同地安置在可轴向移动的环形座上的上部和下部阀装置在空间上布置在管状壳体内并且由上部和下部阀致动器装置独立地控制。 压力响应装置保持阀座与球体密封地接合,而不管样品室内的压力是否大于或小于外部压力。 联接到阀致动器装置的复位装置允许手动打开和关闭阀装置,同时新的和改进的样品收集工具在表面而不必拆卸工具。