莱州湾凹陷东北洼“走滑-伸展”复合断裂控藏机理及勘探启示

doi:10.11743/ogg20190511

Abstract

Abstract: The study area,jointly controlled by the NE-trending strike-slip stress and the NS-trending extensional tectonic stress,is located in the northeastern Laizhou Bay Sag,and the southern eastern branch of the Tanlu strike-slip fault zone.Analysis of the fault distribution and structural evolution of the composite stress zone reveals that KL6A block is mainly controlled by extensional stress;that the most favorable trap is faulted anticline formed jointly by the inherited extensional fault controlling traps and the strike-slip transpressional stress;and that the anticline and faulted anticline trap,developed at the strike-slip pressure buildup section of KL6B and KL6C blocks situated in the major strike-slip stress zone,are the most favorable areas for hydrocarbon preservation.Thereafter,we put up an innovative concept of differential reservoir-controlling effect of strike-slip faults,featuring "transpression press-controlled trap,transtension stress-controlled hydrocarbon migration".The transtentional segment of the strike-slip faults serves as the main path for oil-gas migration,making a breakthrough in the exploration of slope areas.In addition,a ternary reservoir-controlling model of "Source-Fault-Trap" is established,and it is believed that the discovered oil-gas reservoirs can act as transfer stations for further migration up to traps of even higher horizons,facilitating the exploration of slope zones.Blocks of hydrocarbon enrichment are discovered in the top traps of the Dongying Formation,which was originally considered to be poor in migration conditions,marking a major breakthrough in oil-gas exploration.

Key words: tectonic evolution, hydrocarbon accumulation model, Tanlu strike-slip zone, Laizhou Bay Sag, Bohai Sea

CLC Number:

TE121.2

Shi Wenlong, Niu Chengmin, Yang Bo, Wang Liliang, Deng Hui, Wang Hang, Zhang Delong. Mechanism of “strike-slip-extensional” composite faults-controlled hydrocarbon accumulation in the northeastern Laizhouwan Sag, and its enlightenment for exploration[J]. Oil & Gas Geology, 2019, 40(5): 1056-1064.

References

[1] 彭文绪,辛仁臣,孙和风,等.渤海海域莱州湾凹陷的形成和演化[J].石油学报,2009,30(5):654-660. Peng Wenxu,Xin Renchen,Sun Hefeng,et al.Formation and evolution of Laizhou Bay Sag in Bohai Bay[J].Acta Petrolei Sinica,2009,30(5):654-660.
[2] 孙和风,周心怀,彭文绪.莱州湾凹陷油气成藏动力学特征[J].西安石油大学学报(自然科学版),2009,24(4):27-34. Sun Hefeng,Zhou Xinhuai.Dynamic characteristics of the hydrocarbon accumulation in Laizhouwan Sag[J].Journal of Xi'an Shiyou University(Natural Science Edition),2009,24(4):27-34.
[3] 黄雷,王应斌,武强,等.渤海湾盆地莱州湾凹陷新生代盆地演化[J].地质学报,2012,86(6):867-876. Huang Lei,Wang Yingbin,Wu Qiang,et al.Cenozoic tectonic evolution of the Laizhouwan sag in Bohai Bay Basin[J].Acta Geologica Sinica,2012,86(6):867-876.
[4] 牛成民.渤海南部海域莱州湾凹陷构造演化与油气成藏[J].石油与天然气地质,2012,33(3):424-431. Niu Chengmin.Tectonic evolution and hydrocarbon accumulation of Laizhouwan depression in southern Bohai Sea[J].Oil & Gas Geology,2012,33(3):424-431.
[5] 蔡东升,罗毓辉,姚长华.渤海莱州湾走滑拉分凹陷的构造研究及其石油勘探意义[J].石油学报,2001,22(2):19-25. Cai Dongsheng,Luo Yuhui,Yao Changhua.Strike-slip and pull-apart structure study and its significance to petroleum exploration on LaiZhouWan Sag,Bohai area[J].Acta Petrolei Sinica,2001,22(2):19-25.
[6] 漆家福,周心怀,王谦身.渤海海域中郯庐深断裂带的结构模型及新生代运动学[J].中国地质,2010,37(5):1231-1242. Qi Jiafu,Zhou Xin huai,Wang Shiqian.Structural model and Cenozoic kinematics of Tan-Lu deep fracture zone in Bohai Sea area[J].Geology in China,2010,37(5):1231-1242.
[7] 朱光,刘国生,牛漫兰,等.郯庐断裂带的平移运动与成因[J].地质通报,2003,22(3):200-207. Zhu Guang,Liu Guosheng,Niu Manlan,et al.Transcurrent movement and genesis of the Tan-Lu fault zone[J].Regional Geology of China,2003,22(3):200-207.
[8] 万天丰,朱鸿.郯庐断裂带的最大左行走滑断距及其形成时期[J].高校地质学报,1996,2(1):14-27. Wan Tianfeng,Zhu Hong.The maximum sinistral strike-slip and its forming age of TanCheng-LuJiang fault zone[J].Geological Journal of Universitiesf,1996,2(1):14-27.
[9] 徐嘉炜,马国锋.郯庐断裂带研究的十年回顾[J].地质论评,1992,38(4):316-324. Xu Jiawei,Ma Guofeng.Review of ten years(1981-1991)of research on the TanCheng-LuJiang fault zone[J].Geological Review,1992,38(4):316-324.
[10] 严俊君,马前贵.渤海海域的郯庐能够断裂及含油气盆地的发育[J].地质论评,地球科学-中国地质大学学报,1992,17(1):31-38. Yan Junjun,Ma Qiangui.The Tan Cheng-LuJiang wrench fault system in Bohai area[J].Earth Science-Journal of China University of Geosciences,1992,17(1):31-38.
[11] 龚再升,蔡东升,张功成.郯庐断裂对渤海海域东部油气成藏的控制作用[J].石油学报,2007,28(4):1-10. Gong Zaisheng,Cai Dongsheng,Zhang Gongcheng.Dominating action of Tanlu Fault on hydrocarbon accumulation in eastern Bohai Sea area[J].Acta Petrolei Sinica,2007,28(4):1-10.
[12] 邓运华.郯庐断裂带新构造运动对渤海东部油气聚集的控制作用[J].中国海上油气(地质),2001,15(5):1-5. Deng Yunhua.Control of Neotectonism along TanCheng-LuJiang fracture zone on hydrocarbon accumulation the eastern Bohai sea[J].China Offshore Oil and Gas(Geology),2001,15(5):1-5.
[13] 石文龙,张志强,彭文绪,等.渤海西部沙垒田凸起东段构造演化特征与油气成藏[J].石油与天然气地质,2013,34(2):242-247. Shi Wenlong,Zhang Zhiqiang,Peng Wenxu,et al.Tectonic evolution and hydrocarbon accumulation in the east part of Shaleitian Sailent,western Bohai Sea[J].Oil & Gas Geology.2013,34(2):242-247.
[14] 邓运华.渤海湾盆地上第三系油藏类型及成藏控制因素分析[J].中国海上油气(地质),2003,17(6):l-15. Deng Yunhua.Types and accumulation controls of Neogene oil reservoirs in Bohai Bay Basin[J].China Offshore Oil and Gas(Geology),2003,17(6):l-15.
[15] 夏庆龙,庞雄奇,姜福杰,等.渤海海域渤中凹陷源控油气作用及有利勘探区域预测[J].石油与天然气地质,2009,30(4):398-404,411. Xia Qinglong,Pang Xiongqi,Jiang Fujie,et al.Control of source rock on hydrocarbon accumulation and prediction of favorable plays in the Bozhong Depression of the Bohai Sea waters[J].Oil & Gas Geology,2009,30(4):398-404,411.
[16] 龚再升,王国纯.渤海新构造运动控制晚期油气成藏[J].石油学报,2001,22(2):1-7. Gong Zaisheng,Wang Guocun.Neotectonism and late hydrocarbon accumulation in Bohai Sea[J].Acta Petrolei Sinica,2001,22(2):1-7.
[17] 王国纯.郯庐断裂与渤海海域反转构造及花状构造[J].中国海上油气(地质),1998,12(5):289-295. Wang Guocun.Relationship of TanLu fault to the inversion and flower structures in Bohai Bay[J].China Offshore Oil and Gas(Geology),1998,12(5):289-295.
[18] 徐杰,周本刚,计凤桔,等.渤海地区新构造格局[J].石油学报,2011,32(3):242-249. Xu Jie,Zhou Bengang,Ji Fengju,et al.A primary study on the neotectonic pattern of the Bohai area in China[J].Acta Petrolei Sinica,2011,32(3):242-249.
[19] 龚再升.中国近海含油气盆地新构造运动与油气成藏[J].地球科学-中国地质大学学报,2004,29(5):513-517. Gong Zaisheng.Neotectonics andpetroleum accumulation in offshore Chinese Basins[J].Earth Science-Journal of China University of Geosciences,2004,29(5):513-517.
[20] 李大伟.新构造运动与渤海湾盆地上第三系油气成藏[J].石油与天然气地质,2004,25(2):170-184. Li Dawei.Neotectonism and Neogene oil and gas pools in the Bohai Bay basin[J].Oil & Gas Geology,2004,25(2):170-184.
[21] 傅广.西斜坡区萨二、三油层油气运移优势路径及成藏的作用[J].大庆石油学院学报,2005,29(3):1-3. Fu Guang.Main oil-gas migration pathways of S_2-3 oil layer in western slope zone and their effect on oil-gas accumulation[J].Journal of Daqing Petroleum Institute,2005,29(3):1-3.
[22] 朱伟林,米立军,高阳东,等.中国近海近几年油气勘探特点及今后勘探方向[J].中国海上油气,2009,21(1):1-8. Zhu Weilin,Mi Lijun,Gao Yangdong,et al.Recent features and future directions of offshore hydrocarbon exploration in China[J].China Offshore Oil and Gas,2009,21(1):1-8.

Mechanism of “strike-slip-extensional” composite faults-controlled hydrocarbon accumulation in the northeastern Laizhouwan Sag, and its enlightenment for exploration

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