摘要
以重力勘探原理和超导重力仪观测精度为依据，对剩余油气的运移和聚集进行了研究。计算了地下不同埋深的储集体产生的重力异常值以及注水驱动前后引起的重力异常差值。详细分析了地面超导重力观测和井中超导重力观测的分辨率，地面超导重力观测能够分辨出深１０００ｍ，厚５ｍ以上的储集体；井中超导重力观测可以不受埋深的影响，能分辨出井距为７５ｍ，厚２ｍ和半径５ｍ以上的储集体。地面超导重力仪和井中超导重力仪结合起来使用是油田进一步寻找剩余油气的可行的方法之一。
Based on the theory of gravity prospecting and measuring accuracy of superconductive gravimeter, the migrating and accumulating of residual oil and gas are studied. First, the gravity anomaly caused by reservoir body in different embedding depth underground and the difference of gravity anomaly caused by injected water before and after injecting are calculated. The resolution for superconductive gravity measuring and for down hole superconductive gravity measuring is analyzed in detail. It can resolve the reservoir of 1 000 meter deep more than 5m thick by ground superconductive gravity, and the reservoir of 75m well interval, 2m thick and more than 5m in radius by down hole superconductive gravity which is not affected by embedding depth. So the combination of ground and down hole superconductive gravity is one of practicable method in further prospecting of residual oil.
出处
《大庆石油学院学报》
CAS
北大核心
1997年第4期18-21,共4页
Journal of Daqing Petroleum Institute
基金
中国石油天然气总公司资助
关键词
超导重力
重力勘探
剩余油勘探开发
superconductive gravity, residual oil, gravity measuring, dynamistic resolving, gravity abnormal
