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1.发明授权Method and apparatus for electromagnetic logging with two dimensional antenna array 失效用二维天线阵列进行电磁记录的方法和装置
公开(公告)号：US5434507A
公开(公告)日：1995-07-18
申请号：US890049
申请日：1992-05-27
申请人： Jeffrey A. Beren , Tarek M. Habashy , Yupai P. Hsu , David R. Mariani , Kambiz A. Safinya , M. Reza Taherian
发明人： Jeffrey A. Beren , Tarek M. Habashy , Yupai P. Hsu , David R. Mariani , Kambiz A. Safinya , M. Reza Taherian
CPC分类号： E21B47/0002 , G01V3/30
摘要： A two-dimensional array of slot antennas which can provide two-dimensional quantitative dielectric and conductivity images of formations in the region surrounding an earth borehole. The antennas are mounted in a wall-engaging member of a logging device that is moveable through the borehole. Selected ones of the antennas are energized at given times to transmit electromagnetic energy into the formations, the electromagnetic energy being received at other antennas for processing to obtain formation properties.
摘要翻译： 缝隙天线的二维阵列，其可以在围绕地球钻孔的区域中提供地层的二维定量介电和导电图像。 天线安装在可移动通过钻孔的测井装置的壁接合构件中。 在给定的时间，选定的天线被激励以将电磁能传输到地层中，电磁能在其他天线处被接收以进行处理以获得地层特性。
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2.发明授权Apparatus and method of logging using slot antenna having two nonparallel elements 失效使用具有两个非弹性元素的槽天线进行记录的装置和方法
公开(公告)号：US5243290A
公开(公告)日：1993-09-07
申请号：US916
申请日：1993-01-06
CPC分类号： H01Q21/245 , G01V3/30
摘要： A slot antenna has a square aperture and two current probes at angles to each other in the aperture. The two current probes are excited simultaneously or separately with different signals. By adjusting the amplitude or phase of the signals in the current probes, the angle of the magnetic moment of the antenna can be adjusted. An array of such antennas in an electromagnetic propagation tool for a well-logging device simultaneously provides better standoff performance by adjusting the magnetic moment to be parallel to a borehole axis, and better image response by adjusting the magnetic moment to be perpendicular to the formation bed. The array can be excited to function as an endfire and broadside array of an electromagnetic propagation tool.
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3.发明授权Method of evaluating a geological formation using a logging tool including slot antenna having two nonparallel elements 失效使用包括具有两个不平行元件的缝隙天线的测井工具评估地质构造的方法
公开(公告)号：US5406206A
公开(公告)日：1995-04-11
申请号：US98018
申请日：1993-07-27
CPC分类号： H01Q21/245 , G01V3/30
摘要： A slot antenna has a square aperture and two current probes at angles to each other in the aperture. The two current probes are excited simultaneously or separately with different signals. By adjusting the amplitude or phase of the signals in the current probes, the angle of the magnetic moment of the antenna can be adjusted. An array of such antennas in an electromagnetic propagation tool for a well-logging device simultaneously provides better standoff performance by adjusting tile magnetic moment to be parallel to a borehole axis, and better image response by adjusting the magnetic moment to be perpendicular to the formation bed. The array can be excited to function as an endfire and broadside array of an electromagnetic propagation tool.
摘要翻译： 缝隙天线具有方孔和两个在孔中彼此成角度的电流探针。 两个电流探头同时或分开激发不同的信号。 通过调整电流探头中信号的幅度或相位，可以调节天线的磁矩角度。 用于测井装置的电磁传播工具中的这种天线阵列同时通过调节平行于钻孔轴的瓦片磁矩提供更好的隔离性能，并且通过调节垂直于地层床的磁矩来获得更好的图像响应 。 该阵列可以被激发用作电磁传播工具的端射和宽边阵列。
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4.发明授权
公开(公告)号：US5345179A
公开(公告)日：1994-09-06
申请号：US848621
申请日：1992-03-09
IPC分类号： G01V3/30
CPC分类号： G01V3/30
摘要： A form of the disclosure is directed to determining properties of formations surrounding an earth borehole having a standoff layer. A method is disclosed for determining the conductivity and permittivity of the standoff layer and the conductivity and permittivity of the formations adjacent the standoff layer. A further form of the disclosure is directed to an electromagnetic logging apparatus having transmitting and receiving antennas in RTTR, RRTTRR or TTRRTT arrangements.
摘要翻译： 本公开的一种形式涉及确定具有隔离层的地球钻孔周围的地层的性质。 公开了一种用于确定隔离层的导电性和介电常数以及邻近隔离层的地层的导电率和介电常数的方法。 本公开的另一形式涉及具有RTTR，RRTTRR或TTRRTT布置的发射和接收天线的电磁测井装置。
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5.发明授权
公开(公告)号：US5210495A
公开(公告)日：1993-05-11
申请号：US848576
申请日：1992-03-09
CPC分类号： H01Q21/245 , G01V3/30
摘要： In a form of the disclosure, electromagnetic propagation logging measurements are made for several magnetic moment directions of the electromagnetic energy, and can be examined and/or processed retrospectively in order to select the logging information which has a particular desired characteristic, such as the sharpest imaging of bed boundaries. By scanning the magnetic moment over a wide range of angles, one is assured of obtaining logging information that has a desired attribute, such as image sharpness. This can be determined by viewing a recorded log and/or by automatically processing the log data. Information from other ones of the several logs may be useful in optimizing other attributes, such as standoff immunity or signal-to-noise ratio.
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