海相沉积岩是中国石油工业未来的希望

Marine Facies Sedimentary Rocks: The Future Expectation of China's Petroleum Industry

回顾了中国陆相找油第一次创业的经验,认为中国的海相找油走过了一段“以南代北”和“以偏概全”的弯路。提出了该如何全面看待中国南方海相地层所遇到的破坏严重,地面暴露,保存条件差及油气层年代古老等问题。汇总了我国主要海相勘探区(塔里木盆地、鄂尔多斯盆地、四川盆地、渤海湾盆地)的油气勘探进展概况。建议中国的海相油气勘探因经验不足,可以借鉴俄罗斯海相古生界找油的经验。指出中国的海相沉积油气勘探可以包括十个领域:(1)稳定地台区的大型古隆起;(2)断陷盆地的海相沉积;(3)山间盆地海相沉积;(4)南方地区碳酸盐岩分布区;(5)南方复合盆地;(6)大陆架海域海相沉积;(7)西藏羌塘盆地侏罗系;(8)四川盆地的三叠系;(9)大型不整合;(10)逆掩断层带的海相沉积。

Having Reviewed the past experience of petroleum exploration in continental facies sedimentary regions in China, the author summarizes the crooked way in prospecting oil and gas marine facies sedimentary regions and gives his view how to look on the problems such as heavy damage in the subsurface, exposure on surface, poor preservation conditions and very old-aged reservoirs in the marine facies sedimentary rocks in the extensive southern China.. The progressions of oil and gas exploration in the main large marine sedimentary regions, including Tarim, Ordos, Sichuang and Bohai Wan basins, are summarized. The author suggests that the oil and gas prospecting in China is worthy to learn from Russian experience of exploration in Palaeozic sedimentary rocks. Ten oil and gas exploration domains of marine facies sedimentary rocks in China are put forward: (1) the large paleouplifts in stable platforms; (2) the marine sedimentary rocks in faulted basins; (3) the marine sedimentary rocks in intermountain basins; (4) the carbonate rock areas in southern China; (5) the composite basins in southern China; (6) the marine sedimentary rocks in the sea shelves; (7) the Jurassic marine sedimentary rocks in Qangtan Basin (Tibet); (8) the Triassic marine sedimentary rocks in Sichuan Basin; (9) the large-scaled unconformity strata; (10) the marine sedimentary rocks in overthrust belts.