Down-hole transmitter system, method of inducing a transient electromagnetic field in an earth formation, method of obtaining a transient electromagnetic response signal, and method of producing a hydrocarbon fluid
    1.
    发明授权
    Down-hole transmitter system, method of inducing a transient electromagnetic field in an earth formation, method of obtaining a transient electromagnetic response signal, and method of producing a hydrocarbon fluid 失效
    井下发射机系统,在地层中诱发瞬时电磁场的方法,获得瞬时电磁响应信号的方法以及产生烃流体的方法

    公开(公告)号:US08356673B2

    公开(公告)日:2013-01-22

    申请号:US12666012

    申请日:2008-07-01

    IPC分类号: E21B47/00 G01V3/18

    CPC分类号: G01V3/28

    摘要: A down-hole tool provided with a transmitter system for inducing a transient electromagnetic field in an earth formation has an induction coil with a number of windings to generate essentially a magnetic dipole field. The number of windings is divided into two or more groups of windings arranged to cooperatively generate the essentially magnetic dipole field when energized. Switching means are arranged to essentially simultaneously terminate the energizing of the groups of windings. The groups of windings are electrically isolated from each other or connected in parallel to each other, at least when the energizing is terminated. A transient electromagnetic field may thus be induced in an earth formation by essentially simultaneously terminating energizing each group of windings by operating the switching means. A transient electromagnetic response signal may be recorded, and used in a method of producing a mineral hydrocarbon fluid.

    摘要翻译: 具有用于在地层中诱发瞬时电磁场的发射器系统的井下工具具有多个绕组的感应线圈,以产生基本上的磁偶极场。 绕组的数量被分成两组或更多组绕组,其被布置成在通电时协同地产生基本上磁偶极场。 开关装置布置成基本上同时终止绕组组的通电。 绕组组彼此电隔离或彼此并联连接,至少在通电结束时。 因此,可以通过基本上同时终止通过操作开关装置对每组绕组通电来在地层中感应出瞬态电磁场。 可以记录瞬时电磁响应信号,并用于生产矿物烃流体的方法。

    DOWN-HOLE TRANSMITTER SYSTEM, METHOD OF INDUCING A TRANSIENT ELECTROMAGNETIC FIELD IN AN EARTH FORMATION, METHOD OF OBTAINING A TRANSIENT ELECTROMAGNETIC RESPONSE SIGNAL, AND METHOD OF PRODUCING A HYDROCARBON FLUID
    2.
    发明申请
    DOWN-HOLE TRANSMITTER SYSTEM, METHOD OF INDUCING A TRANSIENT ELECTROMAGNETIC FIELD IN AN EARTH FORMATION, METHOD OF OBTAINING A TRANSIENT ELECTROMAGNETIC RESPONSE SIGNAL, AND METHOD OF PRODUCING A HYDROCARBON FLUID 失效
    下部发电机系统,在地球形成中诱导瞬态电磁场的方法,获得瞬时电磁响应信号的方法,以及生产烃类流体的方法

    公开(公告)号:US20110036569A1

    公开(公告)日:2011-02-17

    申请号:US12666012

    申请日:2008-07-01

    IPC分类号: E21B47/00 G01V3/18

    CPC分类号: G01V3/28

    摘要: A down-hole tool provided with a transmitter system for inducing a transient electromagnetic field in an earth formation has an induction coil with a number of windings to generate essentially a magnetic dipole field. The number of windings is divided into two or more groups of windings arranged to cooperatively generate the essentially magnetic dipole field when energized. Switching means are arranged to essentially simultaneously terminate the energizing of the groups of windings. The groups of windings are electrically isolated from each other or connected in parallel to each other, at least when the energizing is terminated. A transient electromagnetic field may thus be induced in an earth formation by essentially simultaneously terminating energizing each group of windings by operating the switching means. A transient electromagnetic response signal may be recorded, and used in a method of producing a mineral hydrocarbon fluid.

    摘要翻译: 具有用于在地层中诱发瞬时电磁场的发射器系统的井下工具具有多个绕组的感应线圈,以产生基本上的磁偶极场。 绕组的数量被分成两组或更多组绕组,其被布置成在通电时协同地产生基本上磁偶极场。 开关装置布置成基本上同时终止绕组组的通电。 绕组组彼此电隔离或彼此并联连接,至少在通电结束时。 因此,可以通过基本上同时终止通过操作开关装置对每组绕组通电来在地层中感应出瞬态电磁场。 可以记录瞬时电磁响应信号,并用于生产矿物烃流体的方法。

    System and method for measuring a time-varying magnetic field and method for production of a hydrocarbon fluid
    4.
    发明授权
    System and method for measuring a time-varying magnetic field and method for production of a hydrocarbon fluid 失效
    用于测量时变磁场的系统和方法以及用于生产烃流体的方法

    公开(公告)号:US08258784B2

    公开(公告)日:2012-09-04

    申请号:US12666821

    申请日:2008-07-01

    IPC分类号: G01R33/12 G01R33/02 G01B7/14

    CPC分类号: G01R33/12 G01R33/123

    摘要: In accordance with the present disclosure, a system and a method are disclosed for measuring a time varying magnetic field. In one aspect, a system comprises a plurality of induction coils arranged to measure the time varying magnetic field using at least one voltage induced in at least one of the induction coils in the plurality of induction coils, a plurality of snubber circuits connected to the plurality of induction coils, each of the snubber circuits of the plurality of snubber circuits arranged to suppress a resonance of a respective one of the induction coils of the plurality of induction coils, and a summing circuit connected to each of the snubber circuits of the plurality of snubber circuits, the summing circuit arranged to sum voltages induced in each of the induction coils in the plurality of induction coils.

    摘要翻译: 根据本公开,公开了一种用于测量时变磁场的系统和方法。 一方面,一种系统包括多个感应线圈,其布置成使用在多个感应线圈中的感应线圈中的至少一个感应的至少一个电压来测量时变磁场;多个缓冲电路,连接到多个感应线圈 感应线圈的多个缓冲电路的缓冲电路中的每一个布置成抑制多个感应线圈中的相应感应线圈的谐振,以及与多个感应线圈中的每个缓冲电路连接的求和电路 缓冲电路,所述求和电路被布置成对在所述多个感应线圈中的每个感应线圈中感应的电压求和。

    SYSTEM AND METHOD FOR MEASURING A TIME-VARYING MAGNETIC FIELD AND METHOD FOR PRODUCTION OF A HYDROCARBON FLUID
    5.
    发明申请
    SYSTEM AND METHOD FOR MEASURING A TIME-VARYING MAGNETIC FIELD AND METHOD FOR PRODUCTION OF A HYDROCARBON FLUID 失效
    用于测量时变磁场的系统和方法以及用于生产烃油的方法

    公开(公告)号:US20110006764A1

    公开(公告)日:2011-01-13

    申请号:US12666821

    申请日:2008-07-01

    IPC分类号: G01R33/02

    CPC分类号: G01R33/12 G01R33/123

    摘要: In accordance with the present disclosure, a system and a method are disclosed for measuring a time varying magnetic field. In one aspect, a system comprises a plurality of induction coils arranged to measure the time varying magnetic field using at least one voltage induced in at least one of the induction coils in the plurality of induction coils, a plurality of snubber circuits connected to the plurality of induction coils, each of the snubber circuits of the plurality of snubber circuits arranged to suppress a resonance of a respective one of the induction coils of the plurality of induction coils, and a summing circuit connected to each of the snubber circuits of the plurality of snubber circuits, the summing circuit arranged to sum voltages induced in each of the induction coils in the plurality of induction coils.

    摘要翻译: 根据本公开,公开了一种用于测量时变磁场的系统和方法。 一方面,一种系统包括多个感应线圈,其布置成使用在多个感应线圈中的感应线圈中的至少一个感应的至少一个电压来测量时变磁场;多个缓冲电路,连接到多个感应线圈 感应线圈的多个缓冲电路的缓冲电路中的每一个布置成抑制多个感应线圈中的相应感应线圈的谐振,以及与多个感应线圈中的每个缓冲电路连接的求和电路 缓冲电路,所述求和电路被布置成对在所述多个感应线圈中的每个感应线圈中感应的电压求和。

    Monitoring system for well casing
    9.
    发明授权
    Monitoring system for well casing 有权
    套管监控系统

    公开(公告)号:US08973434B2

    公开(公告)日:2015-03-10

    申请号:US13060465

    申请日:2009-08-26

    IPC分类号: E21B33/00 E21B47/00 E21B47/01

    CPC分类号: E21B47/0006 E21B47/01

    摘要: A system for use in a wellbore, comprises a length of casing, a structure that is configured to deform with deformation of the casing, said structure being affixed to the length of casing at substantially the same radial position along the length of casing, and a sensing device that is configured to measure deformation of the structure, said device comprising a plurality of sensors that are distributed with respect to at least one of the length of said structure and the periphery of said structure.

    摘要翻译: 一种在井眼中使用的系统,包括一定长度的套管,构造成随着壳体变形而变形的结构,所述结构沿着壳体的长度在基本上相同的径向位置处固定到壳体的长度,并且 感测装置,其被配置为测量所述结构的变形,所述装置包括相对于所述结构的长度和所述结构的周边中的至少一个分布的多个传感器。

    MONITORING SYSTEM FOR WELL CASING
    10.
    发明申请
    MONITORING SYSTEM FOR WELL CASING 有权
    监控系统

    公开(公告)号:US20110054808A1

    公开(公告)日:2011-03-03

    申请号:US12921968

    申请日:2009-03-10

    IPC分类号: G01B11/16

    摘要: A system (20) for monitoring deformation of a substantially cylindrical casing (14). The system (20) includes at least two strings (22) of interconnected sensors (24) that are wrapped around the casing (14) so as not to intersect one another. At least one of the strings (22) includes a series of at least two segments (S). The series of segments (S) includes a segment (S) arranged at one wrap angle (θ) and another segment (S) arranged at a different wrap angle (θ).

    摘要翻译: 一种用于监测大致圆柱形壳体(14)变形的系统(20)。 系统(20)包括互连传感器(24)的至少两个串(22),其缠绕在壳体(14)周围以便不彼此相交。 串(22)中的至少一个包括一系列至少两个段(S)。 一系列片段(S)包括以一个包角(& thetas。)布置的片段(S)和以不同包角(& thetas))排列的片段(S)。