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1. 发明授权

US5467018A Method of processing transient electromagnetic measurements in geophysical analysis 失效
标题翻译：地球物理分析中瞬态电磁测量的处理方法
公开(公告)号：US5467018A
公开(公告)日：1995-11-14
申请号：US927417
申请日：1992-11-12
申请人： Horst Ruter , Kurt-Martin Strack
发明人： Horst Ruter , Kurt-Martin Strack
IPC分类号： G01V3/02 , G01V3/08
CPC分类号： G01V3/02
摘要： A method of geophysical analysis includes transmitting an electromagnetic signal into the earth and measuring the resulting transmission of that signal through the earth to a plurality of spaced recording units. The values of the transmitted signal are locally digitized and stored at each recording unit. The stored data from each recording unit is subsequently transmitted through a telemetric link to a central processing or analyzing unit, the stored data being transmitted from one recording unit at a time and in a preselected sequence. The data may be transmitted from each recording unit in a block and stored in the central processing unit. The digitizing and storing of the measured values at each unit is accomplished through a yield point amplifier. Automatic drift correction processing may also be applied to the measured values obtained from each recording unit. A microprocessor is installed at each recording unit to process, store, and relay the data measured and to test and control the status of the receiving unit.
摘要翻译： PCT No.PCT / DE91 / 00238 Sec。 371日期：1992年11月12日 102（e）日期1992年11月12日PCT 1991年3月20日PCT公布。出版物WO91 / 14954 日期：1991年10月3日。地球物理分析方法包括将电磁信号发射到地球中，并测量通过地球将该信号的所得传输测量到多个间隔的记录单元。发送信号的值被本地数字化并存储在每个记录单元处。来自每个记录单元的存储的数据随后通过遥测链路发送到中央处理或分析单元，所存储的数据一次一个地以预选序列从一个记录单元发送。数据可以从块中的每个记录单元发送并存储在中央处理单元中。通过屈服点放大器实现每个单元测量值的数字化和存储。自动漂移校正处理也可以应用于从每个记录单元获得的测量值。在每个记录单元处安装微处理器以处理，存储和中继测量的数据，并测试和控制接收单元的状态。

2. 发明授权

US06541975B2 Integrated borehole system for reservoir detection and monitoring 有权
公开(公告)号：US06541975B2
公开(公告)日：2003-04-01
申请号：US09938355
申请日：2001-08-23
申请人： Kurt-Martin Strack
发明人： Kurt-Martin Strack
IPC分类号： G01V140
CPC分类号： G01V11/00 , G01V2210/6163
摘要： In one embodiment the invention comprises a system for generating an image of an Earth formation surrounding a borehole penetrating the formation. Resistivity of the formation is measured using a DC measurement, and conductivity and resistivity of the formations is measured with a time domain signal or AC measurement. Acoustic velocity of the formation is also measured. The DC resistivity measurement, the conductivity measurement made with a time domain electromagnetic signal, the resistivity measurement made with a time domain electromagnetic signal and the acoustic velocity measurements are combined to generate the image of the Earth formation.

3. 发明授权

US6147496A Determining electrical conductivity of a laminated earth formation using induction logging 失效
标题翻译：使用感应测井确定层压地层的导电性
公开(公告)号：US6147496A
公开(公告)日：2000-11-14
申请号：US886725
申请日：1997-07-01
申请人： Kurt-Martin Strack , Leonty Abraham Tabarovsky , David Ronald Bear , Melis van der Horst
发明人： Kurt-Martin Strack , Leonty Abraham Tabarovsky , David Ronald Bear , Melis van der Horst
IPC分类号： G01V3/28 , G01V3/10 , G01V3/18 , G06F19/00
CPC分类号： G01V3/28
摘要： A method is provided for determining an electric conductivity of an earth formation formed of different earth layers, which earth formation is penetrated by a wellbore containing a wellbore fluid, is provided. The method includes the steps of: lowering an induction logging tool into the wellbore to a location surrounded by a selected one of the earth layers, the tool having a magnetic field transmitter effective to induce magnetic fields of different frequencies in the earth formation, and a magnetic field receiver effective to receive response magnetic fields and to provide a signal representative of each response magnetic field, at least one of the transmitter and the receiver having a plurality of magnetic dipole moments in mutually orthogonal directions. At least two of the different frequencies are selected, and for each selected frequency, the transmitter is operated so as to induce a magnetic field in the earth formation and the receiver is operated so as to provide a signal representing a response magnetic field, wherein the at least one of the transmitter and receiver is operated in the mutually orthogonal directions. The signals are combined in a manner so as to create a combined signal having a reduced dependency on the electric conductivity in the wellbore region. The formation resistivity and the relative orientation of the logging tool with respect to the formation layering is determined from the combined signal.
摘要翻译：提供了一种用于确定由不同的地层形成的地层的电导率的方法，所述地层由包含井筒流体的井筒穿透而形成。该方法包括以下步骤：将感应测井工具降低到井眼中到由所选择的一个接地层围绕的位置，所述工具具有有效地诱导地层中不同频率的磁场的磁场发射器，以及磁场接收器有效地接收响应磁场并提供表示每个响应磁场的信号，发射器和接收器中的至少一个具有在相互正交的方向上的多个磁偶极矩。选择不同频率中的至少两个，并且对于每个选定的频率，发射机被操作以在地球形成中感应出磁场，并且操作接收机以提供表示响应磁场的信号，其中发射机和接收机中的至少一个在相互正交的方向上操作。以这样的方式组合信号，以产生对井眼区域的电导率的依赖性降低的组合信号。根据组合信号确定测井工具相对于地层分层的地层电阻率和相对取向。

4. 发明授权

US5841280A Apparatus and method for combined acoustic and seismoelectric logging measurements 失效
标题翻译：用于组合声学和地震测井测量的装置和方法
公开(公告)号：US5841280A
公开(公告)日：1998-11-24
申请号：US881304
申请日：1997-06-24
申请人： Gang Yu , Xiaoming Tang , Kurt-Martin Strack , Arthur Chuen Hon Cheng
发明人： Gang Yu , Xiaoming Tang , Kurt-Martin Strack , Arthur Chuen Hon Cheng
IPC分类号： G01V3/26 , G01V11/00 , G01V1/40 , G01V3/18
CPC分类号： G01V11/00 , G01V3/265
摘要： A method for estimating porosity of an earth formation from measurements of acoustic energy traversing the earth formation and from measurements of seismoelectric voltages generated in the formation in response to the acoustic energy. The method includes the steps of measuring the acoustic energy traversing the earth formation and measuring said seismoelectric voltages generated in response to the acoustic energy traversing the formation. A seismoelectric signal is synthesized from the measurements of the acoustic energy using an initial value of the porosity. A difference is determined between the synthesized seismoelectric voltages and the measured seismoelectric voltages. The initial value of porosity is adjusted, and the steps of synthesizing the seismoelectric voltages from the acoustic signal, determining the difference, and adjusting the value of porosity are repeated until the difference drops below a predetermined threshold or the difference reaches a minimum value. The adjusted value of porosity which results in the difference being at the minimum is taken as the formation porosity. A particular embodiment includes estimating conductivity of fluid in the pore spaces of the formation by calculating the synthetic seismoelectric voltages using an initial value of conductivity; determining a difference between the synthetic seismoelectric voltages and the measured seismoelectric voltages; and adjusting the initial value of conductivity, and repeating the steps of calculating the synthetic seismoelectric voltages, determining the difference and adjusting the value of conductivity until the difference reaches a minimum.
摘要翻译：一种通过对穿过地层的声能的测量以及响应于声能来测量在地层中产生的地震电压来估计地层的孔隙度的方法。该方法包括以下步骤：测量穿过地层的声能，并测量响应于穿过地层的声能产生的地震电压。使用孔隙率的初始值从声能的测量合成地震电信号。在合成的地震电压和测量的地震电压之间确定差异。调整孔隙率的初始值，并且重复从声信号合成地震电压，确定差值和调节孔隙度的步骤，直到该差降低到预定阈值以下或该差达到最小值。导致差异最小的孔隙度的调整值作为地层孔隙度。特定实施例包括使用电导率的初始值计算合成地震电压来估计地层孔隙空间中的流体的电导率; 确定合成地震电压和所测量的地震电压之间的差; 并调整电导率的初始值，并且重复计算合成地震电压的步骤，确定差值并调整电导率值，直到差达到最小值。

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