摘要
虽然平衡钻井越来越受到勘探工作的重视,但吉林伊通探区因独特而复杂的地质条件,仍以过平衡钻井为主。该文对过平衡钻井状态下气测录井的影响因素进行分析,并对过平衡状态下气测录井资料的使用作简要探讨,采用气泡图的形式,建立伊通地堑过平衡钻井状态下气测异常评价图版,以提高过平衡钻井状态下油气层解释符合率,促进压力检测和预报工作的开展,推动平衡钻井技术在吉林探区的推广。
Although balance drilling is paid more attention to,Yitong exploration area in Jilin is still put overbalance drilling first for its unique and complex geological conditions.This paper analyses affecting factors during overbalance drilling,and briefly disvusses gas-logging data application in this state.The abnormal evaluation chart of gas logging in Yitong graben data applivation has been set up in the bubble diagram in order to raice hydrocarbon reservoir′s interpretation concidence during overbalance drilling,put forward pressure prediction and forecast work,promote balance drilling technique applicationin in Jilin exploration area.
