塔西南坳陷麦盖提斜坡油气成藏模式

摘要/Abstract

摘要： 塔西南坳陷麦盖提斜坡发现的奥陶系、泥盆系和石炭系油气藏，其成藏模式一直存在不同认识。开展塔西南坳陷和巴楚隆起构造及演化特征分析，结合储层发育和烃源岩分布特征，认为油气主要分布在断裂带，不同时期定型的构造圈闭所含油气的性质不同，如晚海西期定型的巴什托普断裂带和玉北断裂带含油，而喜马拉雅期定型的色力布亚断裂带和玛扎塔格断裂带富气，具有“南油北气”的分布特点。研究认为，麦盖提斜坡西段石炭系、泥盆系和东段的石炭系、奥陶系成藏模式一致，油气来自寒武系烃源岩，早海西期油气在寒武系—奥陶系大规模成藏，喜马拉雅晚期巴楚隆起抬升，早期油藏达到裂解条件，油气垂向运移形成亚松迪气田和和田河气田；寒武系盐下白云岩是下一步勘探的重点层系。

关键词: 麦盖提斜坡, 成藏模式, 断裂带, 垂向运移, 寒武系盐下白云岩

Abstract: There are different understandings on the hydrocarbon accumulation patterns of the Ordovician, Devonian and Carboniferous reservoirs in the Maigaiti slope, the Southwest Tarim depression. Based on the analysis of structure and evolution features of the Southwest Tarim depression and the Bachu uplift, and considering the reservoir development and distribution characteristics of source rocks, it is found that oil and gas are mainly distributed in the fault zone, and oil and gas properties are different in the structural traps formed during different periods. For example, the Bashituopu fault zone and the Yubei fault zone were formed in the late Hercynian contain oil while the Selibuya fault zone and the Mazhatage fault zone were formed in the Himalayan are rich with gas, suggesting the distribution feature as oil in the south and gas in the north. According to the study results, the hydrocarbon accumulation pattern of the Carboniferous and Devonian systems in the western Maigaiti slope is the same as that of the Carboniferous and Ordovician systems in the eastern Maigaiti slope. Moreover, hydrocarbons came from the Cambrian source rocks. Hydrocarbons accumulated in large scale in the Cambrian–Ordovician during the early Hercynian. During the late Himalayan, the Bachu uplift rose, and the oil pools formed earlier reached the conditions for pyrolysis, and oil and gas vertically migrated, forming the Yasongdi and Hetianhe gas fields. The Cambrian pre-salt dolomite formation is the major target for future exploration.

Key words: Maigaiti slope, hydrocarbon accumulation pattern, fault zone, vertical migration, Cambrian pre-salt dolomite

崔海峰, 田雷, 刘军, 张年春. 塔西南坳陷麦盖提斜坡油气成藏模式[J]. 中国石油勘探, 2016, 21(6): 34-42.

Cui Haifeng, Tian Lei, Liu Jun, Zhang Nianchun. Hydrocarbon accumulation pattern of reservoirs in Maigaiti slope, Southwest Tarim depression[J]. China Petroleum Exploration, 2016, 21(6): 34-42.

参考文献

[1] 艾华国，兰林英. 巴什托普构造石炭系气藏的成藏特征及麦盖提斜坡古生界含油气性[J]. 新疆石油地质，1995,16(2):109-113. Ai Huaguo, Lan Linying. Reservoir-forming characteristics of the gas-reservoir(carboniferous) in Bashituopu structure and the hydrocarbon potential of Paleozoic in Maigaiti slope[J]. Xinjiang Petroleum Geology, 1995,16(2):109-113.
[2] 杨红. 亚松迪Ⅰ号碳酸盐岩油气藏成藏机制分析[J]. 西部探矿工程，2005,105(2):71-72. Yang Hong. Analysis of carbonate reservoir forming mechanism about Yasongdi No.1 structure[J]. Wset-Chian Exploration Engineering, 2005,105(2):71-72.
[3] 杨海军，李勇，单家增，等. 岩石物性对油气成藏过程的控制作用——以塔里木盆地麦盖提斜坡为例[J]. 岩石学报，2007,23(4):823-830. Yang Haijun, Li Yong, Shan Jiazeng, et al. Controlled effort of rock physical properties to migration and gas: an example from Maigaiti slope, Tarim Basin[J]. Acta Petrologica Sinica, 2007,23(4):823-830.
[4] 王招明，王清华，彭更新，等. 塔里木盆地和田河气田成藏条件及控制因素[J]. 海相油气地质，2000,5(1):124-132. Wang Zhaoming, Wang Qinghua, Peng Gengxin, et al. Reservoir forming conditions and control factors of Hetianhe gas field in Tarim Basin[J]. Marine Origin Petroleum Geology, 2000,5(1):124-132.
[5] 刘文汇，张殿伟，高波，等. 地球化学示踪体系在海相层系新型气源识别中的应用——以塔里木盆地和田河气田为例[J]. 中国科学：地球科学，2010,40(8):996-1004. Liu Wenhui, Zhang Dianwei, Gao bo, et al. Using geochemical tracing system to identify new types of gas sources in marine strata of the Hetianhe gas field in the Tarim Basin[J]. China Science: Earth Science, 2010,40(8):996-1004.
[6] 贾承造，王招明，等. 和田河气田碳酸盐岩气藏特征及多期成藏史[J]. 科学通报，2002,47(增刊1):131-136. Jia Chengzao, Wang Zhaoming, et al. Characteristics of carbonate gas pool and multistage gas pool formation history of Hetianhe gas field, Tarim Basin, Northwest China[J]. Chinese Science Bulletin, 2002,47(Supp.1):146-152.
[7] 秦胜飞，邹才能，戴金星，等. 塔里木盆地和田河气田水溶气成藏过程[J]. 石油勘探与开发，2006,33(3):282-288. Qin Shengfei, Zou Caineng, Dai Jinxing, et al. Water-soluble gas accumulation process of Hetianhe gas field in Tarim Basin, NW China[J]. Petroleum Exploration and Development, 2006,33(3):282-288.
[8] 崔海峰，卫平生，张年春，等. 麦盖提斜坡西段奥陶系岩溶储层分布特征及勘探意义[J]. 中国石油勘探，2010,15(6):34-39. Cui Haifeng, Wei Pingsheng, Zhang Nianchun, et al. Distribution characteristics and exploration significance of Ordovician karst reservoir in western Maigaiti slope[J]. China Petroleum Exploration, 2010,15(6):34-39.
[9] 贾承造，魏国齐，姚惠君，等. 塔里木盆地构造演化与区域构造地质[M]. 北京：石油工业出版社，1995:1-50. Jia Chengzao, Wei Guoqi, Yao Huijun, et al. Structural evolvement and tectonic geology characteristics of Tarim Basin, China[M]. Beijing: Petroleum Industry Press, 1995:1-50.
[10] 汤良杰，漆立新，邱海峻，等. 塔里木盆地断裂构造分期差异活动及其变形机理[J]. 岩石学报，2012,28(8):2569-2583. Tang Liangjie, Qi Lixin, Qiu Haijun, et al. Poly-phase differential fault movement and hydrocarbon accumulation of the Tarim Basin, NW China[J]. Acta Petrologica Sinica, 2012,28(8):2569-2583.
[11] 田雷，崔海峰，刘本明，等. 塔里木盆地麦盖提斜坡奥陶系储集层类型与分布[J]. 新疆石油地质，2013,34(4):412-416. Tian Lei, Cui Haifeng, Liu Benming, et al．Types and distribution of Ordovician reservoirs in Maigaiti slope, Tarim Basin[J]. Xinjiang Petroleum Geology, 2013,34(4):412-416.
[12] 田雷，崔海峰，陈永权，等. 麦盖提斜坡西段石炭系小海子组高能滩沉积体地震识别[J]. 天然气地球科学，2014,25(6):928-933. Tian Lei, Cui Haifeng, Chen Yongquan, et al. Seismic detection of bank complex in Xiaohaizi Formation of Carboniferous, western Maigaiti slope[J]. Natural Gas Geoscience, 2014,25(6):928-933.
[13] 苗青，常少英，裴广平，等. 塔里木轮古西奥陶系碳酸盐岩岩溶孔洞充填特征识别方法[J]. 中国石油勘探，2014,19(1):31-34. Miao Qing, Chang Shaoying, Pei Guangping, et al. Method for identification of LGX Ordovician carbonate karst cave packing feature in Tarim[J].China Petroleum Exploration, 2014,19(1):31-34.
[14] 赵建，李冰，罗云，等. 塔河油田奥陶系碳酸盐岩油藏地质储量计算方法[J]. 中国石油勘探，2015,20(3):38-44. Zhao Jian, Li Bing, Luo Yun, et al. Calculation method for geological reserve of Ordovician carbonate rock reservoir in Tahe Oilfield[J].China Petroleum Exploration, 2015,20(3):38-44.
[15] 王振宇，杨柳明，马锋，等. 塔中地区下奥陶统鹰山组白云岩成因研究[J]. 岩性油气藏，2012,24(1):20-24. Wang Zhenyu, Yang Liuming, Ma Feng, et al. Origin of dolomite of lower Ordovician Yingshan formation in Tazhong area[J]. Lithologic Reservoirs, 2012,24(1):20-24.
[16] 林新，蒋海军，岳勇，等. 玉北地区下奥陶统蓬莱坝组白云岩储层特征及控制因素[J]. 岩性油气藏，2014,26(3):59-66. Lin Xin, Jiang Haijun, Yue Yong, et al. Characteristics and controlling factors of dolomite reservoirs of Lower Ordovician Penglaiba Formation in Yubei area[J]. 2014,26(3):59-66.
[17] 斯尚华，陈红汉，谭先锋，等. 塔里木盆地麦盖提斜坡玉北地区奥陶系油气输导体系与成藏期[J]. 地球科学，2013,38(6):1271-1280. Si Shanghua, Chen Honghan, Tan Xianfeng, et al. Hydrocarbon accumulation period and its carries systems in Ordovician reservoir of Yubei area, Maigait slope Tarim Basin[J]. Earth Science, 2013,38(6):1271-1280.
[18] 丁勇，贾存善，邵志兵. 巴楚—麦盖提地区主要油气藏原油地球化学特征及油源探讨[J].石油实验地质，2013,35(6):683-688. Ding Yong, Jia Cunshan, Shao Zhibing. Geochemical features and sources of crude oils in Bachu—Maigaiti area[J]. Petroleum Geology & Experiment, 2013,35(6):683-688.
[19] 崔海峰，田雷，张年春，等. 塔西南坳陷寒武系玉尔吐斯组烃源岩分布特征[J].天然气地球科学，2016,27(4):577-583. Cui Haifeng, Tian Lei, Zhang Nianchun, et al. Distribution characteristics of Cambrian Yuertusi Formation hydrocarbon source rock in the south west depression of Tarim Basin[J]. Natural Gas Geoscience, 2016,27(4):577-583.
[20] 崔海峰，田雷，张年春，等. 塔西南坳陷南华—震旦纪裂谷分布与下寒武统烃源岩发育关系[J]. 石油学报，2016,37(4):430-438. Cui Haifeng, Tian Lei, Zhang Nianchun, et al. Nanhua and Sinian rift distribution and relationship with the lower Cambrian source rocks in the southwest depression of Tarim Basin[J]. Acta Petrolei Sinica, 2016,37(4):430-438.
[21] 崔海峰，田雷，张年春，等. 塔西南坳陷麦盖提斜坡奥陶系油气成藏特征[J].天然气地球科学，2016,27(1):21-28. Cui Haifeng, Tian Lei, Zhang Nianchun, et al. Ordovician reservoir accumulation characteristics in the Maigaiti slope of the southwest depression, Tarim Basin[J]. Natural Gas Geoscience, 2016,27(1):21-28.
[22] 崔海峰，刘军，田雷，等. 塔西南拗陷早加里东期正断层活动及油气意义[J]. 石油地球物理勘探，2016,51(2):384-390. Cui Haifeng, Liu Jun, Tian Lei, et al. The early Caledonian normal faults and its hydrocarbon significance in the southwest depression of Tarim Basin[J]. Oil Geophysical Prospecting, 2016,51(2):384-390.
[23] 朱传玲，闫华，云露，等. 塔里木盆地沙雅隆起星火1井寒武系烃源岩特征[J]. 石油实验地质，2014,36(5):626-632. Zhu Chuanling, Yan Hua, Yun Lu, et al. Characteristics of Cambrian source rocks in well XH1, Shaya uplift, Tarim Basin[J]. Petroleum Geology & Experiment, 2014,36(5):626-632.
[24] 王招明，谢会文，陈永权，等. 塔里木盆地中深1井寒武系盐下白云岩原生油气藏的发现与勘探意义[J]. 中国石油勘探，2014,19(2):1-13. Wang Zhaoming, Xie Huiwen, Chen Yongquan, et al. Discovery and exploration of Cambrian subsalt dolomite original hydrocarbon reservoir at Zhongshen-1 well in Tarim Basin[J]. China Petroleum Exploration, 2014,19(2):1-13.
[25] 赵文智，沈安江，胡素云，等. 塔里木盆地寒武—奥陶系白云岩储层类型与分布特征[J]. 岩石学报，2012,28(3):758-768. Zhao Wenzhi, Shen Anjiang, Hu Suyun, et al. Types and distributional features of Cambrian-Ordovician dolostone reservoirs in Tarim Basin, northwestern China[J]. Acta Petrologica Sinica, 2012,28(3):758-768.