专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP0287320A2 Method of and apparatus for measuring inhomogeneities on the wall of boreholes in formations pierced by a borehole 失效
标题翻译：用于钻地层的钻孔测量上的钻孔壁的不均匀性的方法和装置。
公开(公告)号：EP0287320A2
公开(公告)日：1988-10-19
申请号：EP88303263.3
申请日：1988-04-12
申请人： Magyar Allami Eötvös Loránd Geofizikai Intezet , KOOLAJKUTATO VALLALAT
发明人： Barlai, Zoltan, Dr. , Dorcsi Geza , Rez, Ferenc , Vamos, Attila, Dr.
IPC分类号： G01V3/20
CPC分类号： G01V3/20
摘要： A method of measuring local rock inhomogeneities on the wall of a borehole in layers pierced by the borehole including drilling mud, comprising the steps of generating electric field in a conductive way on the wall of the borehole shaded from the drilling mud in layers pierced by the borehole, measuring in the rock wall shaded from the drilling mud current transport intensities, coupled parallel with each other for currents generated perpendicularly to the wall of the borehole and comparing them to each other; or measuring and comparing local current transport intensities which are first parallel to and then, connected in series with the former, perpendicular to the wall of the borehole and comparing them to each other, determining the local rock inhomogeneities from the magnitudes of the dimensionless quotients of the comparison and repeating the field generating step and the measuring step at least two depth places, or performing the generating and measuring steps continuously versus depth. The apparatus comprises a surface operational equipment and investigation tool (1) connected by a well logging cable (20), wherein the novelty is in comprising either a first group of a conductive current generating electrodes (5, 6, 8) for generating current transport intensities perpendicularly to the wall (4) of the borehole (11) wherein the parallel current transport intensities are measured by measuring electrodes (7/1 to 7/12), or a second group of conductive current generating electrodes (12, 13) for generating current transport intensities which flow first parallel to the wall (4) of the borehole (11) then connected to the parallel current lines in series, perpendicularly to the wall (4) wherein the parallel current transport intensities are measured by a first group of measuring detectors (14, 15) and the perpendicular current transport intensities by a second group of measuring detectors (10, 17) and insulating pads (2/1 to 2/6) for receiving either the first or the second group of conductive current generating electrodes (5, 6, 8, 12, 13) and the measuring electrodes and the measuring detectors, the insulating pads supported on the wall (4) of the borehole (11) by means of spring-activated arms (3) and for shading the conductive current electrodes (5, 6, 8, 12, 13) from the drilling mud.
摘要翻译：测量在通过钻孔包括钻井泥浆刺穿层的钻孔壁本地岩石的不均匀性，包括在层从钻井泥浆阴影钻孔由刺穿壁的导电方式产生的电场的步骤的方法钻孔，在岩壁从钻井泥浆输送的电流强度的阴影，并联耦合海誓山盟用于垂直于所产生的钻孔的壁和比较它们海誓山盟电流测量; 或测量和井眼的壁比较局部电流传输强度哪些是第一平行，然后，串联连接与前，垂直和比较它们海誓山盟，确定性采矿本地岩石从量纲商的大小的不均匀性比较和重复场生成步骤和测量步骤在至少两个位置的深度，或执行所述生成和连续地计量步骤对深度。该装置包括由一测井电缆（20）worin新颖之处在于在包括导电电流产生电极的任一第一组连接面的操作的设备和调查工具（1）（5，6，8），用于生成当前传输强度垂直于所述壁（4）的钻孔（11）worin并联电流强度的是（13 12）输送通过测量电极（7/1至7/12）测量，或导电电流产生电极中的第二组产生的电流传输强度而第一平行流动到所述壁（4）的钻孔（11），然后连接到在串联并联电流线，垂直于所述壁（4）worin并行电流传输强度由第一组的测量用于接收第一或第二GR测量检测器（14，15）和垂直电流传输强度由第二组测量检测器（10，17）和绝缘衬垫（2.1〜2.6）的导电电流产生电极（5，6，8，12，13）和所述测量电极和测量用探测器的OUP，由弹簧触发臂的手段（支撑在井眼（11）的壁（4）的绝缘垫 3）和用于从钻井泥浆遮蔽电流传导电极（5，6，8，12，13）。

IPRDB

热门服务

关于我们

友情链接

联系方式