中国中西部海相碳酸盐盆地油气资源

摘要/Abstract

摘要： 中国陆上海相油气盆地主要分布在特提斯构造域中,自晚元古代到中生代,具克拉通基底的塔里木、鄂尔多斯和四川三大海相盆地,具有巨大的资源潜力,是当前我国重要的油气勘探、开发区。中国古大陆沉积-构造演化在加里东运动期和海西-早印支运动期,发育两个构造层次的海相盆地。早古生代海相盆地的演化与洋-陆转换共耦,沉积了海侵和海退序列的烃源岩;晚古生代一早印支运动期,早期海侵序列以储集层为主、烃源岩次之;海平面下降期的盆地具生储双重性。油气勘探开发的实践证明,三大海相盆地在生烃、聚集-成藏上具有三个共性:原型盆地演化和沉积序列相同,具五个层系的烃源岩(Z₂、€₁、O₁、O_2-3、S₁);加里东构造运动形成天折前陆盆地,造就了古隆起和构造掀斜,形成深水盆和多期古暴露面;古岩溶碳酸盐与上覆晚古生代组成聚集成藏体系。盆地古地理迁移和构造演化的时序差决定了南、北盆地的特殊性。

关键词: 中国, 海相盆地, 烃源岩, 特提斯构造域, 沉积-构造演化, 油气藏形成, 共性, 特殊性

Abstract: The onshore marine hydrocarbon-bearing basins of China are mainly distributed in Tethyan tectonic domain. From Ptoterozoic to Mesozoic, marine basins like Tarim, Ordos and Sichuan with cratonic basement are of enormous potentials in resources. They are major areas for petroleum exploration and development in China. Two structural strata of the marine basins are developed in Caledonian movement and Hercynian-early Indo-China movement for China's old land sedimentary and tectonic evolutions. The evolution of marine basins in early Paleozoic occurred as hydrocarbon source rocks with transgressive sequence and regressive sequence; during late Paleozoic-early Indo-China movement, the transgressive sequence was dominated by reservoir rocks, deposited secondarily by hydrocarbon source rocks; while the deposits of the regressive sequence developed both hydrocarbon source rocks and reservoir rocks. It is shown from exploration and development of these basins that they have three generalities in hydrocarbon generation,accumulation and forming reservoirs, i. e, the prototype basinal evolution is similar to the depositional sequences with five sets of hydrocarbon source rocks (Z₂、€₁、O₁、O_2-3、S₁); in Caledonian movement formed failed foreland basins, deep basins and multistage exposed and corrosive surfaces occurred with palaeo-uplifts and structural tilting; the carbonate rocks with paleo-karst and overlapping Upper Paleozoic shaped reservoir system. The paleogeographic migration and the time deference of structural evolution resulted in the diversity between northern and southern basins.

Key words: marine basin, source rock, Tethyan tectonic domain, depositional-structural evolution, petroleum reservoir formation, generality, particularity

中图分类号:

TE111.1

许效松, 汪正江. 中国中西部海相碳酸盐盆地油气资源[J]. 新疆石油地质, 2002, 23(5): 366-371.

XU Xiao-song, WANG Zheng-jiang. On Oil and Gas Resources in Marine Carbonate Basin of Central-Western China[J]. Xinjiang Petroleum Geology, 2002, 23(5): 366-371.

参考文献

[1] Klemme H D, Ulmishek G F.Efective petrloum source rocks of the wirld:Stratigraphic distribution and controlling depositional factors[J]. AAPG,1991,75(12):1809-1851.
[2] 石宝珩, 刘炳义. 中外地质理论的发展与中国石油地质学之崛起[A],王鸿祯.中外地质科学交流史[C].北京:石油工业出版社, 1992. 243-260.
[3] 戴金星, 宋岩, 张厚福, 等. 中国天然气的聚集区带[M]. 北京:科学出版社, 1997.
[4] 许效松,刘宝君,徐强,等.中国西部大型盆地分析及地球动力学[M]. 北京:地质出版社, 1997.
[5] 黄汲清, 任纪舜, 姜春发, 等. 中国大地构造及演化, 1:400万中国大地构造说明[M]. 北京:科学出版社, 1981.
[6] 王鸿祯. 中国地壳构造发展的主要阶段[J]. 地球科学, 1982,(3).
[7] 刘宝君, 许效松, 潘杏南, 等. 中国南方古大陆沉积地壳演化与成矿[M]. 北京:科学出版社,1993.
[8] 张国伟. 秦岭造山带的形成及其演化[M]. 西安:西北大学出版社, 1988.
[9] 何登发, 赵文智, 等. 中国西北地区沉积盆地动力学演化与含油气系统旋回[M]. 北京:石油工业出版社,1999.
[10] 周清杰, 郑建京. 塔里木盆地构造分析[M]. 北京:科学出版社,1990.
[11] 许效松, 徐强, 潘桂棠, 等. 中国南大陆演化与全球古地理对比[M]. 北京:地质出版社,1996.
[12] 王一刚, 陈盛吉, 徐世琦. 四川盆地古生界-上元古界天然气成藏条件及勘探技术[M]. 北京:石油工业出版社,2001.
[13] 邱中建, 龚再升. 中国油气勘探,第二卷,西部油气区[M]. 北京:石油工业出版社,地质出版社,1999.
[14] 魏国齐, 贾承造, 宋惠珍, 等. 塔里木盆地塔中地区奥陶系构造-沉积模式与碳酸盐岩裂缝储层预测[J]. 沉积学报,2000,18(3):408-413.
[15] 郑聪斌, 等. 鄂尔多斯盆地中部气田成藏条件及气藏分布规律,天然气地质研究新进展[M]. 北京:石油工业出版社,1997.
[16] 童晓光, 梁狄刚, 贾承造. 塔里木盆地事宜地质研究新进展[M]. 北京:石油工业出版社,1996.
[17] 叶德胜, 王恕一, 张希明, 等. 新疆塔里木地北部储层沉积、成岩特征及储层评价[M]. 成都:成都科技大学出版社, 1995.
[18] 张永生. 鄂尔多斯地区奥陶系马家沟群中部块状白云岩的深埋藏白云石化机制[J]. 沉积学报,2000,18(3),424-429.
[19] 康竹林, 傅诚德, 崔淑芬, 等. 中国大中型气田概论[M]. 北京:石油工业出版社, 2000.
[20] 胡光灿, 谢姚祥. 中国四川东部高陡构造石炭系气田[M]. 北京:石油工业出版社,1997.
[21] 赵靖舟,吴保国.塔里木盆地哈得4油田气藏模式探讨[J]. 中国石油勘探,2001,6(1):20-23.
[23] 丁道桂, 汤良杰, 等. 塔里木盆地形成与演化[M]. 南京:河海大学出版社,1996.
[24] 梁狄刚, 张水昌, 张宝民, 等. 从塔里木盆地看中国海相生油问题[J]. 地学前缘,2000,7(4):534-547.