塔河油田暗河油气藏勘探潜力分析

Exploration potential of oil and gas reservoirs of ancient underground river in Tahe Oilfield

巫波 荣元帅 刘遥 张振哲 邓锋

中国石化西北油田分公司勘探开发研究院，新疆 乌鲁木齐 830011

Research Institute of Petroleum Exploration & Production, Northwest Oilfield Company, SINOPEC, Urumqi 830011, China

文中应用地震、钻井、测井等资料，运用多时窗、多属性暗河预测技术，在塔河油田主体区识别出了5个暗河系统，并对暗河发育特征及油水分布特征进行了研究。结果表明：深部暗河与浅层暗河是不同时期的岩溶产物，空间继承性差。浅层暗河呈网状，充填几率大；深部暗河系统呈线状，不充填。深部暗河与浅层暗河具有独立的油水系统，各暗河系统内油水差异性分布。分支暗河、深部暗河也是优质储量发育的井区，具有勘探开发潜力。

By using seismic, drilling and logging information, and multi-window multi-attribute technology for river prediction, five ancient underground river systems are identified in the main region of Tahe Oilfield, the characteristics of oil-water distribution and river development are studied. The results show that the deep and shallow underground rivers are the karst products of the different period, their spatial inheritance is poor; shallow river is reticular, filling probability is big, and deep river system is linear, not filling; deep river and shallow river have independent oil-water systems, and the distributions of oil and water in the underground river system are different; the high quality reserves areas of potential exploration and development are distributed in the branch river and deep river.

10.6056/dkyqt201506005