摘要
川南地区阳新统灰岩气藏为典型的裂缝性气藏,只要寻找到了裂缝发育带便获得了天然气气藏。本文从井出发,对已获气或未获气井部位捕获其它地震反射波波场响应,建立含气裂缝系统与地震反射特征间的对应关系,总结出了运用地震资料预测裂缝的方法,并利用含气裂缝地震异常时差增大值来模拟裂缝圈闭的天然气储量,取得了满意的效果,图6、表1、参2。
South-Sichuan Yangxin series limestone gas fields are typical breakness gasfield,it shall be obtained if breaks Zone is discovered,According to other earthquakes reflexwaves fields respond catched for obtained gas shaft place or unobtained,relation betweengas-bearingbreaks system and earthq uakes reflex characteristics is established,earthquakes da-ta forecast breaks method is summarized,It is satisfied to simulate gas reserves of breaksuncomformity traps used earthquakes unusual tine difference increments of gas-bearingbreads.6fig,ltab,2refs.