高压气层地层压力监测方法在YB122井的应用

Application of High-pressure Formation Pressure Detection Method in Yuanba Well 122

YB122井录井人员从收集区域及邻井资料等基础地质工作开始,通过随钻地层跟踪分析,准确判断实钻地层层位,依据钻时参数变化、钻井液液面波动、池面上涨、气测异常等常规技术方法成功地监测到地层压力异常并采取应对措施,为该井顺利钻进提供了依据,对相似地层的地层压力监测工作有一定借鉴意义。

Beginning from collecting regional and surrounding well materials by Yuanba well 122 mud logging workers, tracking analysis is conducted with the drilling, the drilling stratigraphic position is judged and the abnormal rock pressure is successfillly detected based on drilling time parameter variation, drilling fluid level fluctuation, pool face rise, abnormal gas log and so on and measures are taken, which provides basis for the smooth drilling and references for the similar rock pressure detection.