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辽河坳陷曙北地区元古界潜山具备有利的成藏条件:1紧邻陈家富烃洼陷,发育沙三段和沙四段2套优质烃源岩,为潜山成藏提供了丰富的物质基础;2发育的孔缝为油气成藏提供了有利的储集空间,物性条件较好;3类型多样的疏导体系包括不整合面、断层及潜山内幕裂缝网络体系为油气成藏提供了有利的运聚条件。利用水平井钻遇裂缝多、产量高的优势,优选有利部位,优化实施2口水平井,取得显著效果,为曙北元古界潜山带储量探明及产能建设提供了新思路。
The buried hill of Proterozoic in Shubei area in Liaohe depression has favorable conditions for hydrocarbon accumulation: 1 adjacent to the Chenjiafu hydrocarbon depression, two sets of high-quality source rocks are developed in Shahejie formation and Shasi formation, which provides a rich material foundation for the accumulation of buried hills ; 2, the developed pore seams provide favorable reservoir space for oil and gas accumulation, and have better physical conditions; 3 types of diversion systems including unconformities, fault and buried hill fracture network systems provide favorable reservoir formation Transport poly conditions. The advantage of horizontal well drilled in case of multiple fractures and high yield is obtained. The advantageous location is optimized and two horizontal wells are optimized for achieving remarkable results. This provides a new idea for the exploration of reserves and production capacity in the Shubei Proterozoic buried hill.