渤南洼陷断层封闭性评价——以义37断块为例

断裂在油气成藏与分布中起到了非常重要的作用。它不仅仅可以圈闭油气，更重要的是作为连接烃源岩与圈闭之间的“桥梁与纽带”。渤南洼陷内断裂极其发育，它们对油气的运移、聚集以及油气藏的进一步分割起到了重要的控制作用。通过对渤南洼陷义37断块油藏的重点解剖，明确了断层在侧向和垂向上的封闭机理，运用净毛比、断层泥比率和断面压力等参数分析了断层的封闭能力，揭示了油气运移的方向和路径，并且认为义37断层在沙二段油气成藏过程中，侧向上起到了很好的封闭作用。

Evaluation of fault sealing capacity in Bonan Sag-taking Yi37 fault block as an example.

Faults play an important role in the hydrocarbon accumulation and distribution.They can provide traps for hydrocarbon accumu- lation and act the role of bridge between source rocks and traps. In Bonan Sag,there are lots of developed faults,which exerted significant control on the migration,accumulation,and subse- quent compartmentalization of hydrocarbon reservoirs.In this pa- per,the important petroleum reservoirs such as Yi37 fault block were analyzed.The lateral and vertical fault sealing mechanisms were...