华北南缘新元古界—下古生界海相天然气前景初探

THE STUDY OF EXPLORATION PROSPECT OF MARINE NATURAL GAS IN THE NEOPROTEROZOIC-LOWER PALEOZOIC ON THE SOUTH MARGIN OF THE NORTH CHINA PLATFORM

何明喜 杜建波 王荣新 郭双亭 严永新 武明辉 谢其锋 李凤勋

He Mingxi Du Jianbo Wang Rongxin Guo Shangting Yan Yongxin Wu Minghui Xie Qifeng Li Fengxun

中国石油化工股份有限公司, 河南油田分公司, 石油勘探开发研究院, 河南, 南阳, 473132 2. 中国石油化工股份有限公司, 石油勘探开发研究院, 北京, 100083

Henan Oilfield Company Ltd., SINOPEC, Nanyang, Henan 473132, China 2. Exploration & Production Research Institute, SINOPEC, Beijing 100083, China

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.

According to the field investigation results on the northern edge of the Qingling-Dabie Orogenic Belt,it was showed that the black mudstone and shale containing phosphor in the Lower Cambrian Yutaishan/Dongpo formation on the south margin of the North China Platform was the high quality source rocks,and the dark grey shale in Cuizhuang/Liulaobei formation of the Qingbaikou System was the potential source rocks.The Neoproterozoic-Lower Paleozoic sandstones and dolomites were the main reservoirs,with favorable pore space developed on several karst erosional surfaces internal the Neoproterozoic-Lower Paleozoic sequences.And the shale and the carbonate rocks with gypsum in the Neoproterozoic-Lower Paleozoic were the cap rocks.There were basic conditions for hydrocarbon ge-neration and accumulation although the thermal maturity was higher in the area.Therefore,it is probably the new formation and new domain for exploration of the marine natural gas in the Neoproterozoic-Lower Paleozoic on the south margin of the North China Platform.

全国油气资源战略选区调查与评价项目(XQ-2007-02)

https://doi.org/10.11781/sysydz200902154