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1. 发明公开

EP1505252A1 Multimode acoustic imaging in cased wells 有权转让
标题翻译：波多黎各的多式联运公司Bilderzeugung
公开(公告)号：EP1505252A1
公开(公告)日：2005-02-09
申请号：EP03291990.4
申请日：2003-08-08
申请人： SERVICES PETROLIERS SCHLUMBERGER , Schlumberger Technology B.V. , SCHLUMBERGER HOLDINGS LIMITED
发明人： Froelich, Benoît , Le Calvez, Jean-Luc , Legendre, Emmanuel , Zeroug, Smaine
IPC分类号： E21B47/00 , G01V1/46
CPC分类号： G01V1/50 , E21B47/0005
摘要： A method and device for imaging a description of a zone behind a casing of a well uses a logging tool provided with a plurality of acoustic transducers. The casing is insonified with a first acoustic wave using a first acoustic transducer for transmitting among the plurality of acoustic transducers. The first acoustic wave has a first mode that may be any mode of a set of modes defined as follows: extensional mode, thickness mode, flexural mode. A first acoustic transducer for receiving is selected among the plurality of transducers, a first echo is received at the first acoustic transducer for receiving, and a first signal is produced. A first measurement is extracted from the first signal. The method further comprises insonifying the casing with a second acoustic wave using a second transducer for transmitting, operating in a second mode that may be any mode of the set of modes but is distinct from the first mode. A second echo is received at a selected second acoustic transducer for receiving and a second signal is produced. A second measurement is extracted from the second signal. The description of the zone behind the casing of the well is evaluated from a combination of the first measurement and the second measurement.
摘要翻译：用于对井的壳体后面的区域进行成像的成像方法和装置使用具有多个声换能器的测井工具。使用第一声换能器在第一声波之间对多个声换能器之间进行发送的外壳进行增强。第一声波具有第一模式，其可以是以下定义的一组模式的任何模式：延伸模式，厚度模式，弯曲模式。在多个换能器中选择用于接收的第一声学换能器，在第一声换能器处接收第一回波用于接收，并且产生第一信号。从第一信号中提取第一测量。所述方法还包括使用第二换能器对具有第二声波的壳体进行声音化，所述第二换能器用于以第二模式进行操作，所述第二模式可以是所述一组模式中的任何模式，但与第一模式不同。在所选择的第二声换能器处接收第二回波用于接收，并且产生第二信号。从第二信号中提取第二测量。从第一测量和第二测量的组合评估井的壳体后面的区域的描述。

2. 发明公开

EP2985634A1 Method and apparatus for determining resistivity of a formation 有权
标题翻译： Verfahren und Vorrichtung zur Bestimmung des Widerstandes einer Formation
公开(公告)号：EP2985634A1
公开(公告)日：2016-02-17
申请号：EP14290248.5
申请日：2014-08-11
申请人： Services Petroliers Schlumberger , Schlumberger Technology B.V. , Schlumberger Holdings Limited
发明人： Legendre, Emmanuel , Abellan, Alexandre
IPC分类号： G01V3/24
CPC分类号： G01V3/20 , G01V3/24 , G01V3/38
摘要： Apparatus and methods operable to determine a resistivity of a subterranean formation surrounding a wellbore. One such method includes using an apparent impedance function depending on a frequency variable and a plurality of unknown parameters, at least one of the unknown parameters depending on a formation impedance of the subterranean formation. The method also includes applying a voltage, at each of a plurality of frequency values, between electrodes of a resistivity tool that is disposed in the wellbore. The method also includes measuring, across the electrodes, a plurality of apparent impedance values, each corresponding to a different one of the frequency values. The method still further includes determining the unknown parameters based on the frequency values and the apparent impedance values, and estimating the formation resistivity based on an expression that includes at least one of the unknown parameters.
摘要翻译：用于确定围绕井眼的地下地层的电阻率的装置和方法。一种这样的方法包括根据频率变量和多个未知参数使用视阻抗函数，至少一个未知参数取决于地下地层的地层阻抗。该方法还包括在布置在井眼中的电阻率工具的电极之间施加在多个频率值中的每一个处的电压。该方法还包括跨越电极测量多个视在阻抗值，每个视在阻抗值对应于不同的一个频率值。该方法还包括基于频率值和视在阻抗值来确定未知参数，并且基于包括至少一个未知参数的表达来估计地层电阻率。

3. 发明公开

EP1635193A1 Determining impedance of material behind a casing in a borehole 失效
标题翻译：一种用于确定井套管后面的材料的阻抗方法
公开(公告)号：EP1635193A1
公开(公告)日：2006-03-15
申请号：EP04292183.3
申请日：2004-09-13
申请人： SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER TECHNOLOGY B.V. , SCHLUMBERGER HOLDINGS LIMITED
发明人： Froehlich, Benoît , Legendre, Emmanuel
IPC分类号： G01V1/48
CPC分类号： G01V1/48
摘要： A method for estimating an impedance of a material behind a casing wall in a borehole, the method comprises exciting (602) the casing wall with an acoustic pulse, and measuring (603) an experimental acoustic waveform (W) reflected from the casing wall. The method further comprises initializing (600) an impedance parameter (Zin), computing (601) an inverse casing response ( R cas -1 ) as a function of the impedance parameter, and deconvoluting (604) the experimental acoustic waveform with the inverse casing response to obtain a transducer response (T). An iterative loop (605, 606, 607) is performed, comprising the computing of an inverse casing response and the deconvoluting of the experimental acoustic waveform by varying (607) the impedance parameter until the transducer response becomes compact (605, 606) in the time domain. The estimated impedance (Zcem) is obtained (606) from the impedance parameter when the transducer response is compact.
摘要翻译：一种用于在钻孔中的套管壁后面的材料的阻抗估计方法，该方法包括激励（602）的壳体壁与声脉冲，并测量（603），以实验性声波形（W）从壳体壁反射。该方法还包括初始化（600），以阻抗参数（寻），计算（601）进行逆壳体响应（R CAS -1）的阻抗参数的（604）的功能，并且与去卷积逆壳体实验声波形响应于获得的换能器的响应（T）。迭代循环（605，606，607）被执行，包括逆壳体响应的计算和实验声波形，直到换能器响应变得紧凑改变（607）的阻抗参数的解卷积（605，606）在时域。所估计的阻抗（Zcem）获得（606）从所述阻抗参数当换能器的响应是紧凑的。

4. 发明授权

EP1505252B1 Multimode acoustic imaging in cased wells 有权转让
标题翻译：在套管井中多式联运声学成像
公开(公告)号：EP1505252B1
公开(公告)日：2005-09-28
申请号：EP03291990.4
申请日：2003-08-08
申请人： SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER TECHNOLOGY B.V. , SCHLUMBERGER HOLDINGS LIMITED
发明人： Froelich, Benoît , Le Calvez, Jean-Luc , Legendre, Emmanuel , Zeroug, Smaine
IPC分类号： E21B47/00 , G01V1/46
CPC分类号： G01V1/50 , E21B47/0005

5. 发明授权

EP1635193B1 Determining impedance of material behind a casing in a borehole 失效
标题翻译：一种用于确定井套管后面的材料的阻抗方法
公开(公告)号：EP1635193B1
公开(公告)日：2010-01-06
申请号：EP04292183.3
申请日：2004-09-13
申请人： Services Petroliers Schlumberger , SCHLUMBERGER TECHNOLOGY B.V. , SCHLUMBERGER HOLDINGS LIMITED
发明人： Froehlich, Benoît , Legendre, Emmanuel
IPC分类号： G01V1/48
CPC分类号： G01V1/48

6. 发明公开

EP2792843A1 Measurement Compensation Using Multiple Electromagnetic Transmitters 审中-公开
标题翻译： Messkompensationsverfahren mithilfe mehrerer elektromagnetischer发件人
公开(公告)号：EP2792843A1
公开(公告)日：2014-10-22
申请号：EP13305497.3
申请日：2013-04-17
申请人： Services Pétroliers Schlumberger , SCHLUMBERGER TECHNOLOGY B.V. , Schlumberger Holdings Limited
发明人： Nichols, Edward , Legendre, Emmanuel , Le Calvez, Jean-Luc
IPC分类号： E21B47/09 , G01V3/28 , E21B47/00
CPC分类号： G01V3/28 , E21B47/00 , E21B47/0905 , G01V3/38
摘要： Systems, methods, and devices for compensating for environmental conditions on electromagnetic measurements are provided. For example, a downhole logging tool (26) may include a first transmitter coil (40), a second transmitter coil (46), and a first receiver coil (42). The first transmitter coil (40) may provide a first magnetic signal in a wellbore (16) having a conductive casing (22, 24). The second transmitter coil (46) may provide a second magnetic signal in the wellbore (16). The first receiver may obtain a first measurement relating to the first magnetic signal and a second measurement relating to the second magnetic signal. The first receiver coil (42) may be near enough to the first transmitter coil (40) and the second transmitter coil (46) to obtain measurements predominantly in the near field eddy current regime. A ratio of the first measurement and the second measurement may cancel environmental dependencies of the first receiver coil (42).
摘要翻译：提供了用于补偿电磁测量环境条件的系统，方法和设备。例如，井下测井工具（26）可以包括第一发射器线圈（40），第二发射器线圈（46）和第一接收器线圈（42）。第一发射器线圈（40）可以在具有导电壳体（22,24）的井筒（16）中提供第一磁信号。第二发射器线圈（46）可以在井筒（16）中提供第二磁信号。第一接收机可以获得与第一磁信号有关的第一测量和与第二磁信号有关的第二测量。第一接收器线圈（42）可以靠近第一发射器线圈（40）和第二发射器线圈（46），以主要在近场涡流状态下获得测量值。第一测量和第二测量的比率可以消除第一接收器线圈（42）的环境依赖性。

7. 发明公开

EP2677116A1 Method and apparatus to detect an oil/water contact 有权
标题翻译： Verfahren und Vorrichtung zur Detektion vonFlüssigkeitsverteilungen
公开(公告)号：EP2677116A1
公开(公告)日：2013-12-25
申请号：EP12290182.0
申请日：2012-06-01
申请人： Services Pétroliers Schlumberger , Schlumberger Technology B.V. , Schlumberger Holdings Limited (SHL) , PRAD Research and Development Limited
发明人： Jannin, Gaelle , Legendre, Emmanuel , Nichols, Edward
IPC分类号： E21B43/32 , E21B47/10 , G01V3/20
CPC分类号： E21B47/102 , E21B43/32 , E21B49/087 , E21B2049/085 , G01V3/20 , G01V3/34
摘要： A disclosed example method involves receiving a first signal transmitted into a reservoir from a production installation in a formation at a wellsite, and determining an apparent resistance of the reservoir based on the first signal. A distance between a fluid extraction tool and a water front is determined based on the apparent resistance.
摘要翻译：所公开的示例性方法包括从在井场的地层中的生产设备接收从储存器传送的第一信号，以及基于第一信号确定储层的表观电阻。基于表观电阻确定流体提取工具与水面之间的距离。

8. 发明公开

EP2551701A1 Apparatus and method for actively balancing impedance of a resistivity measuring tool 审中-公开
标题翻译：装置和方法用于电阻测量工具的阻抗的有源补偿
公开(公告)号：EP2551701A1
公开(公告)日：2013-01-30
申请号：EP11305752.5
申请日：2011-06-16
申请人： Services Pétroliers Schlumberger , Schlumberger Technology B.V. , Schlumberger Holdings Limited , PRAD Research and Development
发明人： Bloemenkamp, Richard , Legendre, Emmanuel , Dumont, Alain
IPC分类号： G01V3/24
CPC分类号： G01V3/24
摘要： An apparatus for making a resistivity measurement of an underground formation surrounding a borehole is provided. The apparatus includes a conductive tool body, at least one current injector electrode positioned between the tool body and a wall of the bore hole, at least one current return electrode positioned between the tool body and the wall of the bore hole, an electrical measurement device configured to monitor a voltage or a current signal indicative of an impedance imbalance, a regulator connected to the electrical measurement device, whereby the regulator is configured to receive the voltage or the current signal indicative of the impedance imbalance and is configured to generate an adjustment signal based on the voltage or the current signal indicative of the impedance imbalance. The apparatus also includes an adjustable electrical device connected to the regulator, whereby the adjustable electrical device is configured to receive the adjustment signal from the regulator.
摘要翻译：提供了用于制造钻孔周围的地下地层的电阻率测量的装置。该装置包括一导电工具主体，所述工具主体和所述钻孔的壁之间定位的至少一个电流注入电极，所述工具主体和所述钻孔的壁之间定位的至少一个电流返回电极，电气测量装置配置成监测电压或指示阻抗，连接到电测量装置的调节器，其中所述调节器被配置成接收指示所述阻抗不平衡的电压或电流信号，并且被配置的不平衡的电流信号在调整信号，以产生基于电压或指示所述阻抗不平衡的电流信号。所以，该设备包括在连接到调节器，由此可调节电气装置被构造成接收来自调节器的调节信号调节电子器件。

9. 发明公开

EP3147449A1 SYSTEMS AND METHODS FOR DETERMINING TOOL CENTER, BOREHOLE BOUNDARY, AND/OR MUD PARAMETER 审中-公开
标题翻译：系统和方法刀具中心，精心控制和/或污泥参数的测定
公开(公告)号：EP3147449A1
公开(公告)日：2017-03-29
申请号：EP15290243.3
申请日：2015-09-24
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V.
发明人： Jarret, Arnaud , Legendre, Emmanuel
IPC分类号： E21B47/08
CPC分类号： E21B47/08
摘要： Systems and methods are provided for estimating the tool center position of a downhole tool, the geometry of the borehole, and/or a mud parameter based on sensor measurements from the downhole tool, even when the downhole tool center is moving over time. At least one sensor may obtain a set of measurements that relates to distance-to-borehole in a borehole at a number of azimuths. A processor may estimate a set of values defining borehole boundary and a set of positions of a center of the downhole tool in the borehole, at least in part by estimating the borehole boundary based on the set of measurements assuming a previously estimated position of the center of the downhole tool is true and estimating the position of the center of the downhole tool based on the set of measurements assuming a previously estimated borehole boundary is true, and iterating at least until convergence.
摘要翻译：提供系统和方法用于估计井下工具的工具中心位置，钻孔的几何形状，和/或基于来自井下工具的传感器测量值，即使当井下工具中心移动随时间的泥浆参数。至少一个传感器可以获取一组测量值做了涉及在多个方位角为距离到井眼的钻孔。处理器可以值限定钻孔边界和一组在井眼中的井下工具的中心的位置，至少部分地通过基于所述组测量假设中心的先前估计的位置估计钻孔边界估计的一组井下工具的是真实的，并估计所述井下工具的基础上的一组测量值假设先前估计的钻孔边界是真实的，并且至少迭代直到收敛的中心的位置。

10. 发明授权

EP2270420B1 Method and apparatus for removal of the double indication of defects in remote eddy current inspection of pipes 有权
标题翻译：在管的远程涡流探伤去除缺陷的双指示的方法和设备
公开(公告)号：EP2270420B1
公开(公告)日：2014-11-12
申请号：EP09290508.2
申请日：2009-06-30
申请人： Services Pétroliers Schlumberger , Schlumberger Technology B.V. , Schlumberger Holdings Limited , Prad Research And Development Limited
发明人： Legendre, Emmanuel , Thilo, Brill , Rosthal, Richard , Minerbo, Gerald
IPC分类号： G01B7/06 , G01N27/90 , G01V3/28
CPC分类号： G01N27/902 , E21B47/082 , E21B49/003 , G01B7/10 , G01N27/9046 , G01N27/9073 , G01N27/9086

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