Structural model and exploration potential in Tankou block of Qianjiang sag,Jianghan Basin

doi:10.3969/j.issn.1672-7703.2017.04.008

Abstract

Abstract: The Tanchou block covers a large-scale salt swell developed within a salt-lake basin, where the structure is very complicated. In recent years, further investigation has been carried out into the structure and evolution in the Tankou block, revealing that this block is an S-shaped embedded structure with the characteristics of salt lake. Based on drilling data and oil and gas discoveries, it is pointed out for the first time that multi-stage slope-break fans are developed in the downthrow side of the syndepostional fault belt in the Tankou bulge, and there are four types of key exploration targets which are 1) structural reservoirs in the margin of the Tankou bulge, 2) beach bar lithologic reservoirs and underwater distributary channel structural-lithologic reservoirs in the eastern and western parts of the Tankou bulge, 3) slopebreak lithologic reservoirs and embedded structural reservoirs in the downthrow side of the syndepostional fault belt in the southern part of the Tankou bulge, and 4) the Xingouzui Formation in the high step-fault zone and the Cretaceous separate-source reservoirs.

Key words: Tankou block, Qianjiang salt lake, structural model, reservoir accumulation condition, exploration potential

CLC Number:

TE122.11

Liu Yunsheng, Luo Jin, Li Minghua, Guo Libin, Yuan Juanmei, ZhangLiang. Structural model and exploration potential in Tankou block of Qianjiang sag,Jianghan Basin[J]. China Petroleum Exploration, 2017, 22(4): 84-89.

References

[1] 龚晓星,吕鹏,董政,焦立波,邱莹,唐婷婷,等. 潜北断裂带构造特征研究[J]. 长江大学学报:自然科学版,2013,10(14):20-23. Gong Xiaoxing, Lü Peng, Dong Zheng, Jiao Libo, Qiu Ying, Tang Tingting, et al. Study on the structural features of nothern Qianjiang fault belt[J]. Journal of Yangtze University:Natural Science Edition, 2013,10(14):20-23.
[2] 赵红格,刘池洋. 大兴断裂分段性研究[J]. 石油与天然气地质, 2002,23(4):368-371. Zhao Hongge, Liu Chiyang. Research on the segmentation of Daxing fault[J]. Oil & Gas Geology, 2002,23(4):368-371.
[3] 刘云生,罗劲,黄华,彭伟,刘芷含,陈金荣. 江汉盆地江陵凹陷南部斜坡带新沟嘴组下段滩坝成因及控制因素[J]. 中国石油勘探, 2016,21(3):92-98. Liu Yunsheng, Luo Jin, Huang Hua, Peng Wei, Liu Zhihan, Chen Jinrong. Beach bar genesis of the lower member of Xingouzui Formation in the southern slope zone of Jiangling sag, Jianghan Basin, and its controlling factors[J]. China Petroleum Exploration, 2016,21(3):92-98.
[4] 张亮. 潜江凹陷钟市地区油气成藏特征及成藏模式[J]. 特种油气藏, 2016,23(4):69-72. Zhang Liang. Hydrocarbon accumulation features and accumulation modes in Zhongshi of Qianjiang depression[J]. Special Oil & Gas Reservoirs, 2016,23(4):69-72.
[5] 张广英,陈凤岭. 潭口地区潜江组地层对比与油气勘探有利地带[J]. 江汉职工大学学报,2007,20(2):35-38. Zhang Guangying, Chen Fengling. Stratigraphic correlation and favorable exploration belt of Qianjiang Formation in Tankou area[J]. Journal of Jianghan Petroleum University of Staff and Workers, 2007,20(2):35-38.
[6] 姚超,焦贵浩,王同和. 中国含油气构造样式[M]. 北京:石油工业出版社,2004. Yao Chao, Jiao Guihao, Wang Tonghe. Patterns of oil and gas bearing structures in China[M]. Beijing:Petroleum Industry Press, 2004.
[7] 雷宝华. 生长断层活动强度定量研究的主要方法评述[J]. 地球科学进展,2012,27(9):947-956. Lei Baohua. Review of the main methods for quantitative research on the activity intensity of growth faults[J]. Advances in Earth Science, 2012,27(9):947-956.
[8] 漆家福,杨桥. 伸展盆地的结构形态及其主控动力学因素[J]. 石油与天然气地质,2007,28(5):634-640. Qi Jiafu, Yang Qiao. Structural configuration and major controlling factors of the extension basin[J]. Oil & Gas Geology, 2007,28(5):634-640.
[9] 邵磊,孟晓捷,张功成,梁建设. 白云凹陷断裂特征对构造与沉积的控制作用[J]. 同济大学学报:自然科学版,2013,41(9):1435-1441. Shao Lei, Meng Xiaojie, Zhang Gongcheng, Liang Jianshe. Controlling effect of the faulting features of Baiyun depression on structure and deposition[J]. Journal of Tongji University:Natural Science, 2013,41(9):1435-1441.
[10] 王华,姜华,林正良,赵淑娥. 南堡凹陷东营组同沉积构造活动性与沉积格局的配置关系研究[J]. 地球科学与环境学报,2011,33(1):70-77. Wang Hua, Jiang Hua, Lin Zhengliang, Zhao Shue. Study on the dependence of synsedimentary structure activity and sedimentary framework of Dongying Formation in Nanpu depression[J]. Journal of Earth Sciences and Environment, 2011,33(1):70-77.
[11] 林海涛,任建业,雷超,闵慧. 琼东南盆地2号断层构造转换带及其对砂体分布的控制[J]. 大地构造与成矿学,2010,34(3):308-316. Lin Haitao, Ren Jianye, Lei Chao, Min Hui. Structural transform belt of No.2 fault in Southeast Hainan Basin and its control on the distribution of sand bodies[J]. Geotectonicaet Metallogenia, 2010,34(3):308-316.
[12] 谢锐杰,王彬,张建荣,查光煜. 潜江凹陷代河地区成藏条件及主控因素研究[J]. 石油天然气学报[J]. 2013,35(5):38-40. Xie Ruijie, Wang Bin, Zhang Jianrong, Zha Guangyu. Hydrocarbon accumulation conditions and major controlling factors of Daihe area in Qianjiang depression[J]. Journal of Oil and Gas Technology, 2013,35(5):38-40.
[13] 郭占谦,萧得铭,唐金生. 深大断裂在油气藏形成中的作用[J]. 石油学报,1996,17(3):27-32. Guo Zhanqian, Xiao Deming, Tang Jinsheng. Roles of deep and major faults in hydrocarbon accumulation[J]. Acta Petrolei Sinica, 1996,17(3):27-32.
[14] 方志雄. 潜江凹陷隐蔽油藏成藏主控因素及勘探方向[J]. 石油与天然气地质,2006,27(6):804-812. Fang Zhixiong. Main controlling factors and exploration direction of subtle oil reservoirs[J]. Oil & Gas Geology, 2006,27(6):804-812.
[15] 何登发. 断裂-岩性体油气藏特征[J]. 石油学报,2007,28(2):22-28. He Dengfa. Characteristics of faulting-lithological reservoirs[J]. Acta Petrolei Sinica, 2007,28(2):22-28.
[16] 漆家福. 裂陷盆地中的构造变换带及其石油地质意义[J]. 海相油气地质,2007,12(4):43-50. Qi Jiafu. Structural transform belt and its significance for oil and gas geology in the rifting basin[J]. Marine Origin Petroleum Geology, 2007,12(4):43-50.