Method and apparatus to automatically recover well geometry from low frequency electromagnetic signal measurements
    2.
    发明授权
    Method and apparatus to automatically recover well geometry from low frequency electromagnetic signal measurements 有权
    从低频电磁信号测量自动恢复良好几何的方法和装置

    公开(公告)号:US08731987B2

    公开(公告)日:2014-05-20

    申请号:US11745181

    申请日:2007-05-07

    IPC分类号: G06Q10/00

    CPC分类号: G01V3/30

    摘要: A technique that is usable with a well includes providing a model so predict measurements that are received by receivers due to transmissions by sources based on estimated positions of the receivers relative to the sources. The estimated positions each have at least two dimensions. At least some of the receivers and the sources are located in the well. On a computer, the estimated positions are automatically refined based on a comparison of the predicted measurements and actual measurements that are obtained by the receivers.

    摘要翻译: 可用于井的技术包括提供模型,从而预测由于接收机相对于源的估计位置而由于源的传输而由接收器接收的测量。 估计的位置每个至少有两个维度。 至少一些接收器和源位于井中。 在计算机上,基于由接收器获得的预测测量值和实际测量值的比较,估计位置被自动地改进。

    Resistivity tool with selectable depths of investigation
    3.
    发明授权
    Resistivity tool with selectable depths of investigation 有权
    电阻率工具,可选择深度调查

    公开(公告)号:US07825664B2

    公开(公告)日:2010-11-02

    申请号:US11612881

    申请日:2006-12-19

    IPC分类号: G01V3/18 G01V3/30

    CPC分类号: G01V3/28

    摘要: A wireline tool string used in a wellbore to determine formation properties is disclosed which comprises one or more transmitter tools disposed within the tool string, each transmitter tool having three linearly independent coils; a receiver tool disposed within the tool string, wherein the receiver tool has three linearly independent coils; and a tool string component disposed between the one or mole transmitter tools and the receiver tool; wherein the one or more transmitter tools are selectably spatially separated from the receiver tool along the tool string to provide a desired depth of investigation and measurements made using the one or more transmitter tools and receiver tool are used to determine formation properties.

    摘要翻译: 公开了一种在井眼中用于确定地层特性的电缆工具串,其包括设置在工具串内的一个或多个发射器工具,每个发射器工具具有三个线性独立的线圈; 设置在所述工具串内的接收器工具,其中所述接收器工具具有三个线性独立的线圈; 以及设置在所述一个或多个发射器工具和所述接收器工具之间的工具串组件; 其中所述一个或多个发射器工具沿着所述工具串可选地在空间上与所述接收器工具分离以提供期望的调查深度,并且使用所述一个或多个发射器工具和接收器工具进行的测量被用于确定地层性质。

    Method and apparatus for the measurement of the electrical resistivity of geologic formations employing modeling data
    4.
    发明授权
    Method and apparatus for the measurement of the electrical resistivity of geologic formations employing modeling data 有权
    使用建模数据测量地质构造电阻率的方法和装置

    公开(公告)号:US06393363B1

    公开(公告)日:2002-05-21

    申请号:US09719788

    申请日:2000-12-15

    IPC分类号: G06F1900

    CPC分类号: G01V3/30

    摘要: Provided are a method, a computer program product and a system, to measure characteristics of a geologic formation, such as hydrocarbon reservoirs, that employs modeling data to remove unwanted information from a signal carrying information concerning the geologic formation. This allows obtaining accurate information concerning the resistivity of geologic formations in which a borehole has been formed and encased with a conductive liner, such as a steel casing. Specifically, it was recognized that a magnetic field produced within a borehole that has been cased is substantially similar to magnetic field produced from a borehole that was not cased, i.e., the spatial distribution and orientation to the two aforementioned magnetic fields are the same, differing only by a constant related to the casing attenuation factor. The magnetic field outside of the cased borehole is reduced in amplitude by an attenuation factor associated with the liner. Thus, the magnetic field produced at a point outside of the liner is a function of the product of term for the attenuation factor of the liner, ke and a term for the response of the geologic formation, ƒ. Both terms are independent of the other. Thus, by factoring and removing information concerning the attenuation factor, ke, accurate measurements of the geologic formation may be determined.

    摘要翻译: 提供了一种方法,计算机程序产品和系统,用于测量地质层的特征,例如碳氢化合物油藏,其采用模拟数据从携带有关地质构造的信息的信号中去除不需要的信息。 这允许获得关于地层的电阻率的准确信息,其中已经形成钻孔并且用诸如钢壳体的导电衬套包住。 具体地,已经认识到,已经套管的钻孔内产生的磁场基本上类似于从未套管的钻孔产生的磁场,即,到两个上述磁场的空间分布和取向是相同的,不同的 只有与套管衰减因子有关的常数。 套管钻孔外的磁场的幅度通过与衬套相关联的衰减因子而减小。 因此,在衬套外部产生的磁场是衬垫的衰减系数的项的乘积,ke和地质构造响应的项。 这两个术语独立于另一个。 因此,通过分解和去除关于衰减因子的信息,可以确定地质构造的精确测量。

    Resistivity Tool with Selectable Depths of Investigation
    5.
    发明申请
    Resistivity Tool with Selectable Depths of Investigation 有权
    具有可选深度调查的电阻率工具

    公开(公告)号:US20070137854A1

    公开(公告)日:2007-06-21

    申请号:US11612881

    申请日:2006-12-19

    IPC分类号: E21B47/00

    CPC分类号: G01V3/28

    摘要: A wireline tool string used in a wellbore to determine formation properties is disclosed which comprises one or more transmitter tools disposed within the tool string, each transmitter tool having three linearly independent coils; a receiver tool disposed within the tool string, wherein the receiver tool has three linearly independent coils; and a tool string component disposed between the one or mole transmitter tools and the receiver tool; wherein the one or more transmitter tools are selectably spatially separated from the receiver tool along the tool string to provide a desired depth of investigation and measurements made using the one or more transmitter tools and receiver tool are used to determine formation properties

    摘要翻译: 公开了一种在井眼中用于确定地层特性的电缆工具串,其包括设置在工具串内的一个或多个发射器工具,每个发射器工具具有三个线性独立的线圈; 设置在所述工具串内的接收器工具,其中所述接收器工具具有三个线性独立的线圈; 以及设置在所述一个或多个发射器工具和所述接收器工具之间的工具串组件; 其中所述一个或多个发射器工具沿着所述工具串可选地在空间上与所述接收器工具分离以提供期望的调查深度,并且使用所述一个或多个发射器工具和接收器工具进行的测量被用于确定地层特性

    SYSTEM AND METHOD FOR ELEVATED SOURCE TO BOREHOLE ELECTROMAGNETIC SURVEY
    6.
    发明申请
    SYSTEM AND METHOD FOR ELEVATED SOURCE TO BOREHOLE ELECTROMAGNETIC SURVEY 有权
    高压电源对井下电磁测量的系统与方法

    公开(公告)号:US20100225322A1

    公开(公告)日:2010-09-09

    申请号:US12696267

    申请日:2010-01-29

    IPC分类号: G01V3/18

    CPC分类号: G01V3/16 G01V3/15 G01V3/30

    摘要: Methods and systems are provided to determine a property of an earth formation, comprising a mobile transmitter disposed at a predetermined elevated height above a surface of the earth formation, and one or more receivers moveably disposed in a wellbore penetrating the earth formation. Electromagnetic energy is transmitted from the mobile transmitter into the formation from a plurality of locations; and at the one or more receivers a signal is measured. Using the signal received by the one or more receivers, a property of the formation, such as resistivity, can be determined and mapped.

    摘要翻译: 提供了方法和系统以确定地层的性质,包括设置在地球表面上方的预定高度的移动发射机以及可移动地设置在穿透地层的井眼中的一个或多个接收器。 电磁能从多个位置从移动发射机发射到地层中; 并且在一个或多个接收器处测量信号。 使用由一个或多个接收器接收的信号,可以确定和映射诸如电阻率的形成的性质。

    Method and Apparatus to Automatically Recover Well Geometry from Low Frequency Electromagnetic Signal Measurements
    7.
    发明申请
    Method and Apparatus to Automatically Recover Well Geometry from Low Frequency Electromagnetic Signal Measurements 有权
    从低频电磁信号测量自动恢复井几何的方法和装置

    公开(公告)号:US20080281667A1

    公开(公告)日:2008-11-13

    申请号:US11745181

    申请日:2007-05-07

    IPC分类号: G06F17/30

    CPC分类号: G01V3/30

    摘要: A technique that is usable with a well includes providing a model so predict measurements that are received by receivers due to transmission by sources baaed on estimated positions of the receivers relative to sources. The estimated positions each have at least two dimensions. At least some of the receivers and the sources are located in the well. On a computer, the estimated positions are automatically refined based on a comparison of the predicted measurements and actual measurements that are obtained by the receivers.

    摘要翻译: 可用于井的技术包括提供模型,以便预测由于接收器相对于源的估计位置的源的传输而由接收器接收的测量。 估计的位置每个至少有两个维度。 至少一些接收器和源位于井中。 在计算机上,基于由接收器获得的预测测量值和实际测量值的比较,估计位置被自动地改进。

    SINGLE WELL RESERVOIR CHARACTERIZATION APPARATUS AND METHODS
    8.
    发明申请
    SINGLE WELL RESERVOIR CHARACTERIZATION APPARATUS AND METHODS 有权
    单井储层特征装置及方法

    公开(公告)号:US20100238763A1

    公开(公告)日:2010-09-23

    申请号:US12405365

    申请日:2009-03-17

    IPC分类号: G01V1/40

    CPC分类号: G01V1/44 G01V1/40 G01V1/52

    摘要: An apparatus and a method for characterizing parts of a reservoir surrounding a borehole are provided including using at least one transmitter to emit a probing signal into the borehole and at least one receiver to receive a signal representing a response of the formation to the probing signal, with the distance separating the transmitter and the receiver being variable while suspended in the borehole using for example an apparatus which can be decoupled in the borehole into a stationary and a mobile section, carrying transmitter and receiver.

    摘要翻译: 提供了用于表征围绕钻孔的储存器的部件的装置和方法,包括使用至少一个发射器将探测信号发射到钻孔中,以及至少一个接收器接收表示地层对探测信号的响应的信号, 在使用例如可以在钻孔中去耦合到静止和移动部分中的装置的情况下,发射器和接收器分离的距离在悬挂在钻孔中是可变的,承载发射器和接收器。

    DEEP-READING ELECTROMAGNETIC DATA ACQUISITION METHOD
    9.
    发明申请
    DEEP-READING ELECTROMAGNETIC DATA ACQUISITION METHOD 有权
    深度读数电磁数据采集方法

    公开(公告)号:US20100198519A1

    公开(公告)日:2010-08-05

    申请号:US12366102

    申请日:2009-02-05

    IPC分类号: G01V3/12 G06F19/00

    CPC分类号: G01V3/30

    摘要: A method of measuring a parameter characteristic of a rock formation is provided, the method including the steps of obtaining crosswell electromagnetic signals between two wells and using an inversion of said signals to investigate or delineate the presence of a resistivity anomaly, such as brine in a low resistivity background, wherein the resistivity anomaly is assumed to be distributed as one or more bodies characterized by a limited number of geometrical parameters and the inversion is used to determine said geometrical parameters. The method can also be applied to determine the trajectory of an in-fill well to be drilled.

    摘要翻译: 提供了一种测量岩层参数特征的方法,该方法包括以下步骤:在两个井之间获得井间电磁信号,并使用所述信号的反演来研究或描绘电阻率异常的存在,例如在 低电阻率背景,其中假定电阻率异常作为由有限数量的几何参数表征的一个或多个主体分布,并且反演用于确定所述几何参数。 该方法还可以用于确定要钻探的填充井的轨迹。

    Deep-reading electromagnetic data acquisition method
    10.
    发明授权
    Deep-reading electromagnetic data acquisition method 有权
    深度电磁数据采集方法

    公开(公告)号:US08812237B2

    公开(公告)日:2014-08-19

    申请号:US12366102

    申请日:2009-02-05

    IPC分类号: G01V1/40 G01V3/30

    CPC分类号: G01V3/30

    摘要: A method of measuring a parameter characteristic of a rock formation is provided, the method including the steps of obtaining crosswell electromagnetic signals between two wells and using an inversion of said signals to investigate or delineate the presence of a resistivity anomaly, such as brine in a low resistivity background, wherein the resistivity anomaly is assumed to be distributed as one or more bodies characterized by a limited number of geometrical parameters and the inversion is used to determine said geometrical parameters. The method can also be applied to determine the trajectory of an in-fill well to be drilled.

    摘要翻译: 提供了一种测量岩层参数特征的方法,该方法包括以下步骤:在两个井之间获得井间电磁信号,并使用所述信号的反演来研究或描绘电阻率异常的存在,例如在 低电阻率背景,其中假定电阻率异常作为由有限数量的几何参数表征的一个或多个主体分布,并且反演用于确定所述几何参数。 该方法还可以用于确定要钻探的填充井的轨迹。