弱度比在裂隙含流体检测中的应用

Application of the weakness ratio to fluid detection in fracture media

利用裂隙弱度比与裂隙中的流体有关且对速度比特别敏感的原理，对弱度比与速度比的关系进行了研究，给出了弱度比与转换波速度比或时间比的表达式，并将此应用到WJT气田的裂隙含气检测中．实际资料的应用表明，弱度比与裂隙的含水性及含油气性有密切的关系，用弱度比检测裂隙的含流体性是可能的，弱度比剖面可作为裂隙含油气检测的基本剖面之一．

Studied the relationship between weakness ratio and velocity ratio, using that the fracture weakness ratio is in connection therewith the fluid contain in fracture and it is very sensitive to velocity ratio. The formula were gave for the weakness ratio and the converted-wave velocity ratio or time ratio, and applied it to detect the gas contain in fracture in the WJT gas field. The result indicated that the weakness ratio is concerned tightly with the fluid quantity and quality contain in the fractures. Detecting the fluid in fracture is possible using the weakness ratio. The weakness ratio section can be as one of basic section in the detecting fluid contain in fractures.