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. 发明授权

US4293934A Circumferential acoustic device 失效
标题翻译：环绕声装置
公开(公告)号：US4293934A
公开(公告)日：1981-10-06
申请号：US49753
申请日：1979-06-18
申请人： Robert A. Herolz , Charles B. Vogel
发明人： Robert A. Herolz , Charles B. Vogel
IPC分类号： G01V1/46 , G01V1/40
CPC分类号： G01V1/46 , Y10S367/911
摘要： A method and apparatus for acoustical logging wherein a plurality of transducers are spaced circumferentially in a plane perpendicular to the borehole and in close proximity to the wall of the borehole. Numerous circumferential acoustic transmission paths are defined by using some of the transducers as transmitters and others as receivers. Ultrasound is transmitted and received separately along each of the paths and amplitudes of the received waves are separately recorded to provide a side-by-side comparison of the signals. The received waves may be comprised of shear waves and compressional waves, and the shear wave amplitude may be recorded to the exclusion of later arriving waves. Proper spacing of the transmitters and receivers will produce a complete circumferential acoustic log of the borehole that can be used to detect the presence of vertical fractures.
摘要翻译：一种用于声学测井的方法和装置，其中多个换能器在垂直于钻孔并且靠近钻孔壁的平面中沿周向隔开。通过使用一些换能器作为发射器和其它作为接收器来定义许多圆周声传播路径。每个路径分别发送和接收超声波，并分别记录接收波的振幅，以提供信号的并排比较。接收的波可以由剪切波和压缩波组成，并且可以记录剪切波幅度以排除后来到达的波。发射器和接收器的适当间距将产生可用于检测垂直裂缝的存在的钻孔的完整圆周声学测井。

2. 发明授权

US4312052A Method for identifying weak sands 失效
标题翻译：识别弱砂的方法
公开(公告)号：US4312052A
公开(公告)日：1982-01-19
申请号：US141835
申请日：1980-04-21
申请人： Charles B. Vogel , Robert A. Herolz
发明人： Charles B. Vogel , Robert A. Herolz
IPC分类号： G01V1/053 , G01V1/52 , G01V1/047 , G01V1/40
CPC分类号： G01V1/52 , G01V1/053 , Y10S181/401 , Y10S367/912
摘要： A method and apparatus for obtaining improved measurements of shear waves in low-velocity lossy formations surrounding a borehole. The method comprises forming an interface between the borehole wall and a solid homogeneous material having a lower velocity than the formation. The geometry and velocity of the homogeneous material provide enhancement of the shear waves at the interface and thereby minimize the effect of interference from undesired compressional waves. Further improvement is obtained by using shear waves whose particles move perpendicular to the travel of the wave, parallel to the plane of the waves and perpendicular to the surface of the material. These are commonly referred to as SV shear waves.
摘要翻译：一种用于在围绕钻孔的低速有损阵列中获得改进的剪切波测量的方法和装置。该方法包括在钻孔壁和具有比地层更低的速度的固体均质材料之间形成界面。均质材料的几何形状和速度提供了界面处的剪切波的增强，从而最小化来自不期望的压缩波的干扰的影响。通过使用粒子垂直于波浪行进平行于波平面并垂直于材料表面的剪切波获得进一步的改进。这些通常称为SV剪切波。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式