利用声波全波列测井资料识别致密砂岩储层裂缝  

The Use of Full-wave Acoustic Logging Data to Identify Fractures in Tight Sandstone Reservoirs

作　　者：朱雷[1] 章成广[1] 唐军[1] 王广才[1] 杨淑雯[1] 居大海[2] 曹江宁 

机构地区：[1]油气资源与勘探技术教育部重点实验室(长江大学),湖北武汉430100 [2]中石油塔里木油田分公司勘探开发研究院,新疆库尔勒841000

出　　处：《长江大学学报（自科版）（中旬）》2015年第3期23-26,4,共4页Journal of Yangtze University(Nature Science Edition)

基　　金：国家科技重大专项(2011ZX05020-008)

摘　　要：在致密砂岩储层中裂缝的发育对产能影响至关重要,怎样进行储层裂缝识别是产能预测的重要部分。运用声波测井资料,研究声波时差、衰减系数、快慢横波能量差值、斯通利波渗透率和各向异性对致密砂岩储层裂缝的响应特征,并进行裂缝识别。利用该方法处理了大北克深地区的26口井,并与电成像裂缝发育成果图进行对比,符合度较高,说明声法测井识别致密砂岩储层裂缝效果较好。Fractures in tight sandstone reservoirs had a crucial impact on productivity,how to identify the fractures in the reservoirs was an important part of the productivity prediction.This paper discussed the method of identifying the fractures by using the acoustic logging data.The characteristics of the effects of interval transit time,attenuation coefficient,the energy difference between the responses of fast and slow shear wave and the anisotropy on Stoneley wave permeability on the fractures of tight sandstone reservoirs were studied and the fractures were identified.The method is used in 26 wells in Dabeikeshen Area and it is compared to the results of diagram of fracture electrical imaging,the results show that it is highly consistent,and better effect is obtained by using the acoustic logging method.

关 键 词：致密砂岩储层裂缝 裂缝识别 声法测井 偶极声波 

分 类 号：P631.84[天文地球—地质矿产勘探]