Overpressure structure in Dongying sag and its controlling factors

doi:10.3969/j.issn.1672-7703.2018.03.004

Abstract

Abstract: Overpressure is quite common and pressure structures are complex in Dongying sag. The overpressure structures are obviously diverse at different depth in different strata and different tectonic belts. The differences of overpressure structures in Dongying sag and their controlling factors were analyzed in detail by investigating the measured formation pressure, the acoustic log response characteristics of mudstone and the overpressure characteristics of seismic velocity spectrum in this sag. It is shown that the overpressure structures in Dongying sag present obvious zoning characteristics. Vertically, the overpressure is mainly developed in the depth of 2200-4500 m, and its main bodies are mainly developed in Es3 and Es4. Areally, the overpressure is mainly developed in Lijin, Niuzhuang, Boxing and Minfeng subsags. The overpressure amplitude is the highest in Lijin subsag, secondarily in Minfeng and Niuzhuang subsags and the lowest in Boxing subsag. The diversity of overpressure structures is closely related to the structural pattern, the evolution degree of source rocks and the activity of faults. The spatial variation of pressure feld is controlled by the structural pattern of salient alternating with subsag, and the distribution and amplitude of overpressure are dependent on the distribution and thermal evolution degree of source rocks, and the boundary of overpressure system is dominated by long-term inherited major faults.

Key words: formation pressure, over-pressure structure, controlling factor, Dongying sag

CLC Number:

Qiu Yibo. Overpressure structure in Dongying sag and its controlling factors[J]. China Petroleum Exploration, 2018, 23(3): 28-34.

References

[1] 郝芳.超压盆地生烃作用动力学与油气成藏机理[M].北京:科学出版社,2005:239-242. Hao Fang. Kinetics of hydrocarbon generation and mechanisms of petroleum accumulation in overpressured basins[M]. Beijing:Science Press, 2005:239-242.
[2] 刘晓峰,解习农.东营凹陷流体压力系统研究[J].地球科学——中国地质大学学报,2003,28(1):78-86. Liu Xiaofeng, Xie Xinong. Study on fluid pressure system in Dongying depression[J]. Earth Science-Journal of China University of Geosciences, 2003,28(1):78-86.
[3] 邱桂强,凌云,樊洪海.东营凹陷古近系烃源岩超压特征及分布规律[J].石油勘探与开发,2003,30(3):71-75. Qiu Guiqiang, Ling Yun, Fan Honghai. The characteristics and distribution of abnormal pressure in the Paleogene source rocks of Dongying sag[J]. Petroleum Exploration and Development, 2003,30(3):71-75.
[4] 张守春,张林晔,查明,朱日房,刘庆.东营凹陷压力系统发育对油气成藏的控制[J].石油勘探与开发,2010,37(3):289-296. Zhang Shouchun, Zhang Linye, Zha Ming, Zhu Rifang, Liu Qing. Control of pressure system development on reservoir formation in the Dongying sag[J]. Petroleum Exploration and Development, 2010,37(3):289-296.
[5] 郑和荣,黄永玲,冯有良.东营凹陷下第三系地层异常高压体系及其石油地质意义[J].石油勘探与开发,2000,27(4):67-70. Zheng Herong, Huang Yongling, Feng Youliang. Anomalous overpressure system of early Tertiary in Dongying depression and its petroleum geology significance[J]. Petroleum Exploration and Development, 2000,27(4):67-70.
[6] 陈中红,查明.东营凹陷流体超压封存箱与油气运聚[J].沉积学报, 2006,24(4):607-615. Chen Zhonghong, Zha Ming. Over-pressured fluid compartment and hydrocarbon migration and accumulation in Dongying depression[J]. Acta Sedimentologica Sinica, 2006,24(4):607-614.
[7] 张善文,张林晔,张守春,刘庆,朱日房,包友书.东营凹陷古近系异常高压的形成与岩性油藏的含油性研究[J].科学通报,2009,54(11):1570-1578. Zhang Shanwen, Zhang Linye, Zhang Shouchun, Liu Qing, Zhu Rifang, Bao Youshu. Formation of abnormal high pressure and its application in the study of oil-bearing property of lithologic hydrocarbon reservoirs in the Dongying sag[J]. Chinese Science Bulletin, 2009,54(11),1570-1578.
[8] 许晓明,刘震,谢启超,张善文,赵阳,蔡进功.渤海湾盆地济阳坳陷异常高压特征分析[J].石油实验地质,2006,28(4):345-349. Xu Xiaoming, Liu Zhen, Xie Qichao, Zhang Shanwen, Zhao Yang, Cai Jingong. Overpressure characteristics of the Jiyang depression in the Bohaiwan Basin[J]. Petroleum Geology & Experiment, 2006,28(4):345-349.
[9] 蒋有录,谭丽娟,荣启宏,宋建勇.东营凹陷博兴地区油气成藏动力学与成藏模式[J].地质科学,2003,38(3):413-424. Jiang Youlu, Tan Lijuan, Rong Qihong, Song Jianyong. Dynamics and modes of hydrocarbon accumulations in Boxing area of the Dongying depression[J]. Chinese Journal of Geology, 2003,38(3):413-424.
[10] 隋风贵.东营断陷盆地地层流体超压系统与油气运聚成藏[J].石油大学学报:自然科学版,2004,28(3):17-21. Sui Fenggui. Effect of formation superpressure system on hydrocarbon migration and accumulation in Dongying fault basin[J]. Journal of the University of Petroleum:Edition of Natural Science, 2004,28(3):17-21.
[11] 罗胜元,何生,金秋月,杨睿之,张君立.渤南洼陷超压系统划分及结构特征[J].吉林大学学报:地球科学版,2015,45(1):37-51. Luo Shengyuan, He Sheng, Jin Qiuyue, Yang Ruizhi, Zhang Junli. Overpressures system classification and struture characteristic in Bonan sag[J]. Journal of Jilin University:Earth Science Edition, 2015,45(1):37-51.
[12] John M Hunt. Generation and migration of petroleum from abnormally pressured fluid compartments[J]. AAPG Bulletin, 1990,74(1):1-12.
[13] Eaton B A. Graphical method predicts geopressures worldwide[J]. World Oil, 1976,183(1):100-104.
[14] 文彩霞,李艳,张辉,赵小会,贾俊.流体封存箱与天然气成藏——以鄂尔多斯盆地苏里格气田为例[J].中国石油勘探,2014,19(2):14-19. Wen Caixia, Li Yan, Zhang Hui, Zhao Xiaohui, Jia Jun. Fluid compartment and gas accumulation-take Sulige gas field in Ordos Basin for example[J]. China Petroleum Exploration, 2014,19(2):14-19.
[15] 杨姣,何生,王冰洁.东营凹陷牛庄洼陷超压特征及预测模型[J].地质科技情报,2009,28(4):34-40. Yang Jiao, He Sheng, Wang Bingjie. Characteristics and prediction model of the overpressures in the Niuzhuang sag of Dongying depression[J]. Geological Science and Technology Information, 2009,28(4):34-40.
[16] 李大伟,林琳,王春辉,辛静.地层超压三维定量计算研究[J].中国石油勘探,2010,15(4):46-51. Li Dawei, Lin Lin, Wang Chunhui, Xin Jing. 3D strata overpressure quantitative study[J]. China Petroleum Exploration, 2010,15(4):46-51.
[17] 赵军,曹强,叶加仁,汤建荣,吴建楠,孟令箭,等.基于地震速度预测南堡凹陷中深层地层压力[J].油气地质与采收率,2016,23(4):34-40. Zhao Jun,Cao Qiang,Ye Jiaren,Tang Jianrong,Wu Jiannan,Meng Lingjian, et al. Prediction of overpressure distribution in mid-deep strata of Nanpu sag based on seismic velocity[J]. Petroleum Geology and Recovery Efficiency, 2016,23(4):34-40.
[18] 杨晓敏.沾化凹陷古近系地层压力分布特征及其控制因素[J].中国石油大学学报:自然科学版,2012,36(4):25-31. Yang Xiaomin. Distribution characteristics and its controlling factors of Paleogene formation pressure in Zhanhua sag, Jiyang depression[J]. Journal of China University of Petroleum:Edition of Natural Science, 2012,36(4):25-31.
[19] 石磊,李富恒,殷进垠,田纳新,郭金瑞,朱卫华.缅甸D区块超压气藏成藏主控因素[J].中国石油勘探,2016,21(2):69-77. Shi Lei, Li Fuheng,Yin Jinyin, Tian Naxin, Guo Jinrui, Zhu Weihua. Main factors controlling accumulation of overpressured gas reservoir in block D, Myanmar[J]. China Petroleum Exploration, 2016,21(2):69-77.
[20] 包友书,张林晔,李钜源,张守春,张蕾,王宇蓉.济阳坳陷古近系超高压成因探讨[J].新疆石油地质,2012,33(1):17-21. Bao Youshu, Zhang Linye, Li Juyuan, Zhang Shouchun, Zhang Lei, Wang Yurong. Approach to Paleogene overpressure origin in Jiyang depression[J]. Xinjiang Petroleum Geology, 2012,33(1):17-21.
[21] 何生,宋国奇,王永诗,郝雪峰,王冰洁,黎娜,等.东营凹陷现今大规模超压系统整体分布特征及主控因素[J].地球科学——中国地质大学学报,2012,37(5):1029-1041. He Sheng, Song Guoqi, Wang Yongshi, Hao Xuefeng, Wang Bingjie, Li Na, et al. Distribution and major control factors of the present-day large-scale overpressured system in Dongying depression[J]. Earth Science-Journal of China University of Geosciences, 2012,37(5):1029-1041.
[22] 党雪维,何生,王永诗,郝雪峰,张君立.孤北洼陷砂岩超压带分布特征及主控因素[J].油气地质与采收率,2016,23(3):47-52. Dang Xuewei, He Sheng, Wang Yongshi, Hao Xuefeng, Zhang Junli. Distribution characteristics and controlling factors of the overpressure zone in sandstone reservoir of Gubei sag[J]. Petroleum Geology and Recovery Efficiency, 2016,23(3):7-52.
[23] 曹忠祥,张宇,蔡攀,李友强,刘建磊,董月昌.济阳坳陷精细勘探新成果与启示[J].中国石油勘探,2016,21(3):14-23. Cao Zhongxiang, Zhang Yu, Cai Pan, Li Youqiang, Liu Jianlei, Dong Yuechang. New achievements and recognitions of fine exploration in Jiyang depression[J]. China Petroleum Exploration, 2016,21(3):14-23.
[24] 王天福,操应长,王艳忠.渤南洼陷古近系深层异常压力特征及成因[J].西安石油大学学报:自然科学版,2009,24(2):21-30. Wang Tianfu, Cao Yingchang, Wang Yanzhong. Characteristic and origin of the abnormal pressure in the deep Paleogene formation in Bonan sub-sag[J]. Journal of Xi'an Shiyou University:Natural Science Edition, 2009,24(2):21-30.
[25] 付晓飞,许鹏,魏长柱,吕延防.张性断裂带内部结构特征及油气运移和保存研究[J].地学前缘,2012,19(6):200-212. Fu Xiaofei, Xu Peng, Wei Changzhu, Lv Yanfang. Internal structure of normal fault zone and hydrocarbon migration and conservation[J]. Earth Science Frontiers, 2012,19(6):200-212.
[26] 高君,吕延防,田庆丰.断裂带内部结构与油气运移及封闭[J].大庆石油学院学报,2007,31(2):4-7. Gao Jun, Lu Yanfang, Tian Qingfeng. Analysis of hydrocarbon migration through the fault based on the interior structure of fault zone[J]. Journal of Daqing Petroleum Institute, 2007,31(2):4-7.