论文部分内容阅读
经野外实地调查,结合前人研究成果,认为华北南缘下寒武统雨台山组/东坡组灰黑色含磷泥页岩为优质烃源岩,青白口系崔庄组/刘老碑组深灰色泥页岩为潜在烃源岩;新元古界—下古生界砂岩、白云岩为主要储集岩,新元古界—下古生界内部多期岩溶侵蚀面发育良好的储集空间;盖层则以新元古界—下古生界含膏碳酸盐岩及泥页岩为主;具备形成油气的基本石油地质条件,但热演化程度较高。华北南缘新元古界—下古生界是值得深入探索的海相天然气新层系和新领域。
Based on the field investigation and the previous research results, it is concluded that the gray-black phosphorous shale in the Lower Cambrian Yutaishan Formation / Dongpo Formation in the southern margin of North China is a high-quality source rock, Cui Zhuang Formation / Liu Laobe Formation Dark gray shale is a potential source rock; Neoproterozoic-Lower Paleozoic sandstone and dolomite are the main reservoir rocks; and the Neoproterozoic-Lower Paleozoic developed well within the multi-stage karst erosion surface Space. The caprocks are dominated by Neoproterozoic-Lower Paleozoic karst carbonate and shale. They possess the basic petroleum geological conditions for oil and gas formation, but their thermal evolution is relatively high. The Neoproterozoic-Lower Paleozoic in the southern margin of North China is a new layer and new field of marine natural gas worth exploring in depth.