通过二连断陷盆地4 个地层- 岩性油藏成功勘探的典型实例, 针对不同凹陷, 深化地层岩性圈闭( 油藏) “多元控砂—四元成藏—主元富集”成藏体系研究, 不断构建新的地层岩性油藏成藏模式, 油气勘探取得重大突破。先后在巴音都兰凹陷、乌里雅斯太凹陷、吉尔嘎朗图凹陷、赛汉塔拉凹陷等发现了4 个3 000 万～5 000 万t 级的地层岩性油藏石油储量区块, 开辟了油气勘探的新局面。

Based on four typical examples of successful exploration for stratigraphic-lithologic reservoirs in Erlian Basin, the research on the accumulation mechanism of “Multi-factor controlling, four-factor entrapping and key-factor enrichment”of stratigraphic-lithologic reservoirs is deepened, and newaccumulation models of stratigraphic-lithologic reservoirs are established. The result shows that petroleum exploration has made a significant breakthrough. Four stratigraphic-lithologic reservoir blocks with reserves of 30 to 50 million tons have been discovered successively in Bayindulan Sag,Wuliyasitai Sag, Jiergalangtu Sag and Saihantala Sag.