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    Downhole tool for determination of formation properties
    2.
    发明公开
    Downhole tool for determination of formation properties 失效
    Bohrlochwerkzeug zur Bestimmung von Gesteinseigenschaften

    公开(公告)号：EP0697502A1

    公开(公告)日：1996-02-21

    申请号：EP95115286.7

    申请日：1989-09-14

    申请人： SCHLUMBERGER LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER HOLDINGS LIMITED ,  SCHLUMBERGER TECHNOLOGY B.V.

    发明人： Zimmerman, Thomas ,  Pop, Julian ,  Perkins, Joseph

    IPC分类号： E21B49/10 ,  E21B49/00

    CPC分类号： E21B49/10 ,  E21B49/081 ,  E21B49/088

    摘要： The apparatus of the present invention relates to a down hole tool capable of extraction of valid samples and making pressure measurements useful in calculating formation permeability. The tool incorporates the features of a straddle packer to allow formation fluid specimens to be taken at large flow rates without depressing the pressure below the formation fluid bubble point. When used in combination with a pressure probe the tool is used to obtain meaningful permeability readings in a larger radius area than previously permitted with known designs. Additionally, the apparatus of the present invention allows flow control during the creation of the pressure pulse which enhances extraction of valid samples and the permeability determination. The apparatus is modularly constructed so that in a single descent of the tool, a pressure profile of the zone of interest can be made, a fluid analysis can be made at each station, multiple uncontaminated fluid samples can be withdrawn at pressures above the bubble point, local vertical and horizontal permeability measurements can be made at each station, a packer module can be set at a location dictated by previous measurements and a large scale pressure build up test can be performed.

    摘要翻译： 本发明的装置涉及一种井下工具，能够提取有效的样品并使压力测量可用于计算地层渗透率。 该工具结合了跨越式封隔器的特征，以允许地层流体样品在大流量下被采集，而不会压低地层流体泡点以下的压力。 当与压力探头组合使用时，该工具用于获得比以前允许的已知设计更大的半径面积内的有意义的磁导率读数。 此外，本发明的装置允许在创建压力脉冲期间的流量控制，这增强了有效样品的提取和渗透性测定。 该装置是模块化构造的，使得在工具的单一下降中，可以制造感兴趣区域的压力分布，可以在每个站点进行流体分析，可以在高于起泡点的压力下取出多个未受污染的流体样品 可以在每个站点进行局部垂直和水平磁导率测量，封隔器模块可以设置在由先前测量指定的位置，并且可以执行大规模的压力建立测试。

    Downhole tool and method for determination of formation properties
    3.
    发明公开
    Downhole tool and method for determination of formation properties 失效
    井下工具和确定形成特性的方法

    公开(公告)号：EP0362010A3

    公开(公告)日：1991-08-14

    申请号：EP89402511.3

    申请日：1989-09-14

    申请人： SCHLUMBERGER LIMITED ,  SOCIETE DE PROSPECTION ELECTRIQUE SCHLUMBERGER

    发明人： Zimmerman, Thomas ,  Pop,, Julian ,  Perkins, Joseph

    IPC分类号： E21B49/08 ,  E21B47/06

    CPC分类号： E21B49/10 ,  E21B49/081 ,  E21B49/088

    摘要： The apparatus of the present invention relates to a down hole tool (A) capable of extraction of valid samples and making pressure measurements useful in calculating formation permeability. The tool incorporates the features of a straddle packer (P) to allow formation fluid specimens to be taken at large flow rates without depressing the pressure below the formation fluid bubble point. When used in combination with a pressure probe (46) the tool is used to obtain meaningful permeability readings in a larger radius area than previously permitted with known designs. Additionally, the apparatus of the present invention allows flow control during the creation of the pressure pulse which enhances extraction of valid samples and the permeability determination. The apparatus may be modularly constructed so that in a single descent of the tool, a pressure profile of the zone of interest can be made, a fluid analysis can be made at each station, multiple uncontaminated fluid samples can be withdrawn at pressures above the bubble point, local vertical and horizontal permeability measurements can be made at each station, a packer module can be set at a location dictated by previous measurements and a large scale pressure build up test can be performed.

    Downhole tool and method for determination of formation properties
    4.
    发明公开
    Downhole tool and method for determination of formation properties 失效
    设备在井眼和方法用于确定地层的性质。

    公开(公告)号：EP0362010A2

    公开(公告)日：1990-04-04

    申请号：EP89402511.3

    申请日：1989-09-14

    申请人： SCHLUMBERGER LIMITED ,  SOCIETE DE PROSPECTION ELECTRIQUE SCHLUMBERGER

    发明人： Zimmerman, Thomas ,  Pop,, Julian ,  Perkins, Joseph

    IPC分类号： E21B49/08 ,  E21B47/06

    CPC分类号： E21B49/10 ,  E21B49/081 ,  E21B49/088

    摘要： The apparatus of the present invention relates to a down hole tool (A) capable of extraction of valid samples and making pressure measurements useful in calculating formation permeability. The tool incorporates the features of a straddle packer (P) to allow formation fluid specimens to be taken at large flow rates without depressing the pressure below the formation fluid bubble point. When used in combination with a pressure probe (46) the tool is used to obtain meaningful permeability readings in a larger radius area than previously permitted with known designs. Additionally, the apparatus of the present invention allows flow control during the creation of the pressure pulse which enhances extraction of valid samples and the permeability determination. The apparatus may be modularly constructed so that in a single descent of the tool, a pressure profile of the zone of interest can be made, a fluid analysis can be made at each station, multiple uncontaminated fluid samples can be withdrawn at pressures above the bubble point, local vertical and horizontal permeability measurements can be made at each station, a packer module can be set at a location dictated by previous measurements and a large scale pressure build up test can be performed.

    摘要翻译： 本发明的装置涉及一种井下工具（A），其能够有效样本的提取，使压力测量在计算地层渗透率是有用的。 所述工具包含一个跨立式封隔（P）的特征，以允许在大的流率将要采取的地层流体样品而不压下地层流体始沸点以下的压力。 当结合使用的压力测试（46）中使用的工具被用于获得有意义的渗透性读数更大的半径区域比已知设计以前允许的。 另外，本发明的装置允许创建压力脉冲的这增强有效样品和渗透性的测定提取过程中的流量控制。 该装置可以被模块化构造在工具的单个下降这样做，可以使感兴趣的区域的压力分布，流体分析可以在每个站制成，多个未被污染的流体样品可以在气泡以上的压力下抽出 点，局部的垂直和水平渗透率测量可以在每个站制成，封隔器模块可以在由以前的测量值和一个大规模压力可以执行建立测试所指示的位置来设置。