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1.发明授权公开(公告)号：US06225806B1
公开(公告)日：2001-05-01
申请号：US09043095
申请日：1998-04-17
IPC分类号： G01V326
CPC分类号： G01V3/265
摘要： Apparatus and method for measuring the properties of rocks such as permeability, porosity and fluid properties downhole around a borehole (3) in which a seismic source (6) which radiates a seismic signal substantially radially within the borehole is lowered down the borehole (3) and the electrical signal generated by the seismic signal within the surrounding rock is detected by detectors (4, 5) mounted above and below the seismic source (6) so that signals are received from substantially all radial directions. Preferably a continuous wave signal is generated and the signal detected whilst the apparatus (1) is raised or lowered. The apparatus (1) gives a much better and more accurate measurement than previous methods.
摘要翻译： 用于测量岩石性质的装置和方法，例如井眼周围井下的渗透性，孔隙度和流体性质（3），其中在井眼内大致径向辐射地震信号的地震源（6）沿钻孔（3）下降， 并且由周围岩石中的地震信号产生的电信号由安装在地震源（6）上方和下方的检测器（4,5）检测，从而从基本上所有的径向方向接收信号。 优选地，产生连续波信号，并且在装置（1）升高或降低时检测到信号。 装置（1）比以前的方法提供了更好和更准确的测量。
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公开(公告)号：US5903153A
公开(公告)日：1999-05-11
申请号：US727453
申请日：1996-10-18
IPC分类号： G01V1/02 , G01N27/00 , G01V3/02 , G01V3/08 , G01V3/26 , G01V9/02 , G01V11/00 , G01V3/12 , G01V3/30 , G01V1/00
摘要： A method and apparatus for detecting underground liquids is disclosed in which the electrical potential generated by a seismic shock is detected and measured with respect to a base point insulated from the earth.
摘要翻译： PCT No.PCT / GB95 / 00844 Sec。 371日期：1996年10月18日 102（e）日期1996年10月18日PCT提交1995年4月13日PCT公布。 WO95 / 28659 PCT公开号 日期：1995年10月26日公开了一种用于检测地下液体的方法和装置，其中相对于与地球绝缘的基点检测和测量由地震冲击产生的电位。
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公开(公告)号：US06597633B1
公开(公告)日：2003-07-22
申请号：US09936862
申请日：2001-09-18
IPC分类号： G01V136
摘要： A method and apparatus for measuring the properties, such as permeability, of the rock surrounding a metal cased borehole by generating a seismic or sonic shock downhole within the borehole which is propagated into the surrounding formation where it generates an electrokinetic signal which is detected by measuring the potential between at least two space apart electrodes in contact with the casing.
摘要翻译： 一种用于通过在钻孔内产生地下或井下声波震动来测量围绕金属套管钻孔的岩石的性质（例如渗透性）的方法和装置，其传播到周围地层中，在该地层中产生电动信号，其中通过测量 在与壳体接触的至少两个间隔开的电极之间的电势。
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公开(公告)号：US06452395B1
公开(公告)日：2002-09-17
申请号：US09492546
申请日：2000-01-27
IPC分类号： G01V1100
CPC分类号： G01V3/26
摘要： A method and apparatus for determining properties of rocks surrounding a borehole in which electrokinetic signals are generated in the rocks is disclosed. For example, the signals may be generated by the vibration induced by the drilling of the borehole or by a seismic source emitting continuous pressure waves. The electrokinetic signals generated are detected and the signal amplified and processed to measure the porous rock properties.
摘要翻译： 公开了一种用于确定在岩石中产生电动信号的钻孔周围的岩石的性质的方法和装置。 例如，信号可能是由钻孔所引起的振动或者发射连续压力波的地震源产生的。 检测到所产生的电动信号，并对信号进行放大和处理，以测量多孔岩石性质。
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公开(公告)号：US06842697B1
公开(公告)日：2005-01-11
申请号：US09936790
申请日：2000-03-15
CPC分类号： G01V3/265
摘要： A method and apparatus for measuring the properties such as permeability of the rock surrounding a borehole in which a directional seismic or sonic signal is generated downhole and propagated into the surrounding formation to generate an electrokinetic signal and the focus of the seismic signal is moved in three dimensions in the surrounding rock by physically moving the source or by having two seismic sources which generate oscillating seismic signals at different frequencies and the focus of the seismic signal is varied by wave interference or wave interaction.
摘要翻译： 用于测量诸如围绕钻孔的岩石的渗透性的特性的方法和装置，其中定向地震或声音信号在井下生成并传播到周围地层中以产生电动信号，并且地震信号的焦点在三个 通过物理移动源或通过具有两个产生振荡的地震信号在不同频率的地震信号并且地震信号的焦点由波浪干扰或波浪相互作用而变化的周围岩石的尺寸。
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