蒙古国塔木察格盆地塔南凹陷岩性油藏勘探方法

Lithologic deposit exploration methods in south sag of Tamsag Basin in Mongolia

塔南凹陷是塔木察格盆地勘探的主要区域,随着海塔石油会战进程不断深入、勘探技术手段不断发展,塔南凹陷开始将勘探重心转向岩性油藏勘探。先后在塔南凹陷东部次凹南洼槽和西部次凹发现一批岩性油藏储量,总结出了适合塔南凹陷的生烃潜力分析定凹;构造、沉积分析选区带;垂向细分层序定层位;平面储层预测定目标;整体部署、分布实施,精细评价岩性油藏的勘探方法。对于整个海塔盆地及类似塔南凹陷的断陷盆地岩性油藏勘探具有很好的借鉴意义。

The south sag of Tamsag is the main exploration area of Tamsag Basin.As Hailer and Tamsag Oil Campaign processed in depth and exploration technology and methods developed step by step,the lithologic deposit exploration become the highlight for the south sag of Tamsag exploration.A number of lithologic deposit reserves have been found in south frog of east subsag and west subsag in south sag of Tamsag,a set of lithologic deposit exploration methods adapt to south sag of Tamsag have been summarized,which include hydrocarbon generation potential fixing depression; tectonic and sedimentary analyzing selecting belt; subdivision sequence in vertical fixing layer; reservoir forecast in plane fixing target; integral deploy and implement in stages,appraising lithologic reservoir subtly.It is directive for lithologic deposit exploration of Hailer and Tamsag Basin and faulted basin which similar to the south sag of Tamsag.