Drilling formation tester, apparatus and methods of testing and monitoring status of tester
    1.
    发明授权
    Drilling formation tester, apparatus and methods of testing and monitoring status of tester 有权
    钻井成形试验机,试验台的试验和监测状态的装置及方法

    公开(公告)号:US07093674B2

    公开(公告)日:2006-08-22

    申请号:US10288794

    申请日:2002-11-04

    IPC分类号: E21B44/00 E21B49/08

    摘要: An integrated drilling and evaluation system includes a drill string having an interior portion and a drill bit, carried on a lower end, that includes ports for communicating fluid between the interior portion of the drill string and an uncased well bore. A packer, carried above the drill bit, is operable for sealingly closing a well annulus. A tester valve inserted in the drill string is operable for sealingly closing the drill string. The packer and tester valve are cooperatively operable for isolating a subsurface zone of interest. The system includes monitoring means inserted in the drill string for monitoring a parameter of well fluid from the subsurface zone. Once the subsurface zone is isolated, well fluid is communicated into the interior portion of the drill string through the ports of the drill bit, received by the monitoring means, and tested without removing the drill string form the well.

    摘要翻译: 集成的钻井和评估系统包括钻柱,其具有承载在下端的内部部分和钻头,其包括用于在钻柱的内部部分和未井井孔之间连通流体的端口。 承载在钻头上方的封隔器可操作用于密封地封闭井环。 插入钻柱中的测试器阀可操作以密封地关闭钻柱。 封隔器和测试器阀可协同操作以隔离感兴趣的地下区域。 该系统包括插入钻柱中的监测装置,用于监测来自地下区域的井液的参数。 一旦地下区域被隔离,则良好的流体通过钻头的端口传送到钻柱的内部,由监测装置接收,并且在不从井中移除钻柱的情况下测试。

    Sprung member and actuator for downhole tools
    2.
    发明授权
    Sprung member and actuator for downhole tools 有权
    用于井下工具的弹簧构件和执行器

    公开(公告)号:US06761232B2

    公开(公告)日:2004-07-13

    申请号:US10292301

    申请日:2002-11-11

    IPC分类号: E21B704

    CPC分类号: E21B17/1021 E21B7/06

    摘要: A downhole tool for use in a well bore is provided. The tool includes a tool body and at least one elongated sprung member deployed on an outer surface thereof. The sprung member is configured to lie in a rest position substantially parallel to the outer surface and further includes at least one movable end that is movable with respect to the tool body. The tool further includes an actuation module deployed on the tool body. The actuation module is operably engaged with the sprung member, and disposed, upon actuation, to deflect said movable end thereof away from the rest position. Displacement of the movable end of the sprung member causes elastic spring biasing of the sprung member via bending thereof. The biasing urges the sprung member to return to the rest position upon de-actuation of the actuation module.

    摘要翻译: 提供了一种用于井眼的井下工具。 该工具包括一个工具主体和一个展开在其外表面上的至少一个细长的簧上部件。 弹簧构件被构造成处于基本上平行于外表面的静止位置,并且还包括可相对于工具主体移动的至少一个可动端。 该工具还包括部署在工具主体上的致动模块。 致动模块与弹簧构件可操作地接合,并且在致动时设置成将其可移动端偏离远离静止位置。 弹簧构件的可动端的位移通过其弹簧弹簧弹簧弹簧偏置来弹簧弹簧。 当致动模块被解除驱动时,偏置件促使弹簧构件返回到静止位置。

    Downhole steering tool having a non-rotating bendable section
    3.
    发明授权
    Downhole steering tool having a non-rotating bendable section 有权
    井下转向工具具有不旋转的可弯曲部分

    公开(公告)号:US07383897B2

    公开(公告)日:2008-06-10

    申请号:US11155165

    申请日:2005-06-17

    IPC分类号: E21B7/08

    CPC分类号: E21B7/062 E21B17/20

    摘要: A downhole steering tool is disclosed. The steering tool includes a rotatable shaft, a substantially non-rotating tool body deployed about the shaft, and a plurality of force application members deployed on the steering tool body. The steering tool further includes a bendable section deployed in the steering tool body. The bendable section is disposed to bend preferentially relative to the steering tool body under an applied bending load. The use of a steering tool body having a bendable section tends to advantageously reduce bending stresses in the steering tool body during use. Moreover, tools embodying this invention may be suitable for higher dogleg severity applications.

    摘要翻译: 公开了井下转向工具。 所述转向工具包括可旋转的轴,围绕所述轴布置的基本不旋转的工具主体以及部署在所述转向工具主体上的多个施力部件。 所述转向工具还包括设置在所述转向工具主体中的可弯曲部分。 可弯曲部分设置成在施加的弯曲载荷下相对于转向工具主体优先弯曲。 使用具有可弯曲部分的转向工具主体倾向于有利地减少在使用期间转向工具主体中的弯曲应力。 此外,体现本发明的工具可适用于较高的狗腿严重性应用。

    Method and apparatus for measurement-while-drilling utilizing improved
antennas
    4.
    发明授权
    Method and apparatus for measurement-while-drilling utilizing improved antennas 失效
    利用改进的天线进行钻井测量的方法和装置

    公开(公告)号:US5530358A

    公开(公告)日:1996-06-25

    申请号:US187417

    申请日:1994-01-25

    CPC分类号: G01V3/30

    摘要: A method and apparatus is provided for measurement-while-drilling utilizing improved antennas. An elongated tubular member is provided with an outer peripheral surface having a contoured portion defining a plurality of discrete communication regions of reduced radial dimension. An antenna pathway is defined in the elongated member substantially transverse to the plurality of discrete communication regions. An antenna member is partially disposed in the antenna pathway with portions of the antenna member extending out of the elongated member at the plurality of discrete communication regions to facilitate communication of electromagnetic energy. In a reception mode of operation, the antenna member detects electromagnetic energy in the wellbore and generates a current corresponding thereto. If operated in a transmission mode of operation, the antenna member emits electromagnetic energy in the wellbore in response to an energizing current. Preferably, the plurality of discrete communication regions are circumferentially disposed about the elongated member. Means is provided for preferentially communicating electromagnetic energy with particular portions of the antenna member which are disposed in the plurality of discrete communication regions. In one particular embodiment, a plurality of electrically-operable magnetic circuit elements are provided for communicating with particular ones of the plurality of discrete communication regions of the antenna member, for altering antenna gain in response to at least one control signal.

    摘要翻译: 提供了一种利用改进的天线进行钻孔测量的方法和装置。 细长管状构件设置有外周表面,该外周表面具有限定径向尺寸减小的多个离散连通区域的轮廓部分。 天线通道被限定在基本横向于多个离散通信区域的细长构件中。 天线部件部分地设置在天线通道中,天线部件的部分在多个离散通信区域延伸出细长部件,以便于电磁能的通信。 在接收操作模式中,天线构件检测井眼中的电磁能量并产生与其对应的电流。 如果在传输操作模式下操作,天线部件响应于通电电流在井眼中发射电磁能。 优选地,多个离散的连通区域围绕细长构件周向设置。 提供了用于优先地将电磁能量与设置在多个离散通信区域中的天线部件的特定部分进行通信的装置。 在一个特定实施例中,提供了多个电动可操作的磁路元件,用于与天线构件的多个离散通信区域中的特定的一个通信区域通信,用于响应于至少一个控制信号改变天线增益。

    Spring mechanism for downhole steering tool blades
    5.
    发明授权
    Spring mechanism for downhole steering tool blades 有权
    井下转向工具刀片弹簧机构

    公开(公告)号:US07204325B2

    公开(公告)日:2007-04-17

    申请号:US11061339

    申请日:2005-02-18

    IPC分类号: E21B7/08

    CPC分类号: E21B17/1021 E21B7/06

    摘要: A steering tool for use in a well bore is disclosed. The tool includes at least one extendable and retractable blade deployed thereon. The blade is elastically spring biased radially inwards towards the tool such that upon removal of an actuating force, the blade retracts. In exemplary embodiments, the blade includes at least one spring-like, elastically deformable member disposed to elastically spring bias the blade. The spring-like member may include first and second elongated leg portions located on opposing sides of a sprung hairpin portion. Tools embodying this invention may be advantageous for small diameter applications.

    摘要翻译: 公开了一种用于井眼的转向工具。 该工具包括在其上部署的至少一个可伸缩刀片。 刀片被弹性弹簧偏压向工具偏置,使得当移除致动力时,刀片缩回。 在示例性实施例中,刀片包括设置成弹性地偏置刀片的至少一个类似弹性的弹性变形构件。 弹簧状构件可以包括位于弹簧发夹部分的相对侧上的第一和第二细长腿部。 实施本发明的工具对于小直径应用可能是有利的。

    Drilling formation tester, apparatus and methods of testing and monitoring status of tester
    6.
    发明授权
    Drilling formation tester, apparatus and methods of testing and monitoring status of tester 有权
    钻井成形试验机,试验台的试验和监测状态的装置及方法

    公开(公告)号:US07096976B2

    公开(公告)日:2006-08-29

    申请号:US10317319

    申请日:2002-12-12

    IPC分类号: E21B44/00 E21B49/08

    摘要: An integrated drilling and evaluation system includes a drill string having an interior portion and a drill bit, carried on a lower end, that includes ports for communicating fluid between the interior portion of the drill string and an uncased well bore. A packer, carried above the drill bit, is operable for sealingly closing a well annulus, A tester valve inserted in the drill string is operable for sealingly closing the drill string. The packer and tester valve are cooperatively operable for isolating a subsurface zone of interest. The system includes monitoring means inserted in the drill string for monitoring a parameter of well fluid from the subsurface zone. Once the subsurface zone is isolated, well fluid is communicated into the interior portion of the drill string through the ports of the drill bit, received by the monitoring means, and tested without removing the drill string form the well.

    摘要翻译: 集成的钻井和评估系统包括钻柱,其具有承载在下端的内部部分和钻头,其包括用于在钻柱的内部部分和未井井孔之间连通流体的端口。 承载在钻头上方的封隔器可操作用于密封地封闭井环。插入钻柱中的测试阀可操作以密封地关闭钻柱。 封隔器和测试器阀可协同操作以隔离感兴趣的地下区域。 该系统包括插入钻柱中的监测装置,用于监测来自地下区域的井液的参数。 一旦地下区域被隔离,则良好的流体通过钻头的端口传送到钻柱的内部,由监测装置接收,并且在不从井中移除钻柱的情况下测试。

    Pressure controlled fluid sampling apparatus and method
    7.
    发明授权
    Pressure controlled fluid sampling apparatus and method 有权
    压力控制流体取样装置及方法

    公开(公告)号:US07083009B2

    公开(公告)日:2006-08-01

    申请号:US10633853

    申请日:2003-08-04

    IPC分类号: E21B49/08 E21B36/04

    CPC分类号: E21B49/081

    摘要: A formation fluid sampling tool including at least one sample tank mounted in a tool collar. The tool collar includes a through bore and is disposed to be operatively coupled with a drill string such that each sample tank may receive a correspondingly preselected formation fluid sample without removing the drill string from a well bore. At least one of the sample tanks further includes an internal fluid separator movably disposed therein. The separator separates a sample chamber from a pressure balancing chamber in the sample tank. The pressure balancing chamber is disposed to be in fluid communication with drilling fluid exterior thereto. The sampling tool further includes a sample inlet port connected to the sample chamber by an inlet passageway.

    摘要翻译: 一种地层流体采样工具,其包括安装在工具套环中的至少一个样品罐。 工具套环包括通孔,并且设置成与钻柱可操作地联接,使得每个样品罐可以接收相应地预选的地层流体样品而不从井眼移除钻柱。 至少一个样品罐还包括可移动地设置在其中的内部流体分离器。 分离器将样品室与样品箱中的压力平衡室分开。 压力平衡室设置成与其外部的钻井液体流体连通。 采样工具还包括通过入口通道连接到样品室的样品入口。