苏丹富油气凹陷岩性油气藏区带评价探讨——以Muglad盆地Fula凹陷为例

doi:10.3969/j.issn.1672-7703.2017.02.011

摘要/Abstract

摘要： 苏丹Muglad盆地Fula凹陷是一个陆相被动裂谷盆地内发育的富油气凹陷，经过多期次勘探后，目前已进入新的以岩性圈闭为目标的勘探阶段。以“满凹含油理论”、“构造-层序区带聚集理论”为指导，以岩性油气藏“四图叠合”区带评价方法为手段，对Fula凹陷三级层序内构造、沉积、有效烃源岩、运移条件的配置关系进行了综合分析，并结合现今油气发现，预测了Fula凹陷内岩性油气藏有利勘探区带。分析结果认为：Abu Gabra组AG2段是岩性油气藏发育最有利层段，Jake区扇三角洲前缘相带是目前最有利的岩性油气藏勘探区带，Baleela区曲流河三角洲前缘相带次之，Moga区曲流河三角洲前缘相带再次之，Fula区断裂坡折带上盘岩性油气藏勘探潜力有限。

关键词: 苏丹, Muglad盆地, Fula凹陷, 岩性圈闭, Abu Gabra组, 区带评价, 沉积层序

Abstract: The Fula sag in the Muglad Basin is a hydrocarbon-rich sag in a passive continental rift basin. Currently, its exploration focuses on lithologic traps. According to the "sag-wide oil-bearing theory" and the "tectonic-sequence zone accumulation theory", the matching relationship among structures, sedimentations, effective source rocks and migration conditions in third-order sequences of Fula sag was analyzed comprehensively by means of "four-map overlying" play evaluation method for lithologic reservoirs. Then, combined with existing oil and gas discoveries, the favorable plays of lithologic reservoirs in the Fula sag were predicted. It is indicated that AG2 Member of Abu Gabra Formation is the most favorable interval for the development of lithologic reservoirs, and the fan delta front within the Jake area is currently the most favorable lithologic reservoir exploration zone, followed by the meandering delta front within the Baleela area and then the meandering delta front within the Moga area. The lithologic reservoirs at the upper wall of fracturing slope break belt in the Fula area are limited in exploration potentials.

Key words: lithologic trap, Abu Gabra Formation, play evaluation, sedimentary sequence, Sudan, Muglad Basin, Fula sag

中图分类号:

TE112.3

刘淑文, 李志, 潘校华, 客伟利, 胡胜福, 张新顺. 苏丹富油气凹陷岩性油气藏区带评价探讨——以Muglad盆地Fula凹陷为例[J]. 中国石油勘探, 2017, 22(2): 90-98.

Liu Shuwen, Li Zhi, Pan Xiaohua, Ke Weili, Hu Shengfu, Zhang Xinshun. Play evaluation on lithologic reservoirs in hydrocarbon-rich sags in Sudan: a case study on Fula sag, Muglad Basin[J]. China Petroleum Exploration, 2017, 22(2): 90-98.

参考文献

[1] 汪望泉，窦立荣，张志伟，李志，李谦.苏丹福拉凹陷转换带特征及其与油气的关系[J].石油勘探与开发，2007,32(1):124-127. Wang Wangquan, Dou Lirong, Zhang Zhiwei, Li Zhi, Li Qian. Transfer zone character and its relationship to hydrocarbon in Fula Sub-basin, Sudan [J]. Petroleum Exploration and Development, 2007,32(1):124-127.
[2] 汪望泉，窦立荣，樊太亮，李志，张占敏.中非穆格莱德盆地福拉凹陷构造特征与油气聚集[J]. 新疆石油地质，2007,28(3):387-390. Wang Wangquan, Dou Lirong, Fan Tailiang, Li Zhi, Zhang Zhanmin. Structures and hydrocarbon accumulation in Fula Sub-basin of Muglad Basin in Central Africa[J]. Xin Jiang Petroleum Geology, 2007,28(3):387-390.
[3] 聂昌谋，陈发景，白洋，汪望泉，马鹏善.苏丹Fula油田油藏地质特征[J].石油与天然气地质，2004,37(6):671-676. Nie Changmou, Chen Fajing, Bai Yang, Wang Wangquan, Ma Pengshan. Geological characteristics of Fula oilfield in Muglad Basin, Sudan [J]. Oil &Gas Geology, 2004,37(6):671-676.
[4] 吴冬，朱筱敏，李志，苏永地，刘英辉，张梦瑜，等.苏丹Muglad盆地Fula凹陷白垩纪断陷期沉积模式[J]. 石油勘探与开发，2015， 43(3):319-327. Wu Dong, Zhu Xiaomin, Li Zhi, Su Yongdi, Liu Yinghui, Zhang Mengyu, et al. Depositional models in Cretaceous rift stage of Fula sub-basin, Muglad Basin, Sudan [J]. Petroleum Exploration and Development, 2015,43(3):319-327.
[5] 张亚敏，赵万优，陈向军，陈东波，许辉，丁磊. 苏丹穆格莱德盆地Fula凹陷油气富集特征[J]. 现代地质，2008,30(4):633-639. Zhang Yamin, Zhao Wanyou, Chen Xianjun, Chen Dongbo, Xu Hui, Ding Lei. Hydrocarbon enrichment patterns of bonanza pool in Fula Depression of Muglad Basin, Sudan [J]. Geoscience, 2008,30(4):633-639.
[6] 赵贤正，田福清，王权，范炳达，董雄英，赵淑芳，等. 老区富油凹陷“五精一创”勘探实践与启示[J]. 中国石油勘探，2016,21(6):1-8. Zhao Xianzheng，Tian Fuqing，Wang Quan，Fan Bingda，Dong Xiongying，Zhao Shufang，et al. Application and performance of delicate and innovative exploration practices in oil-rich sags of matured areas [J]. China Petroleum Exploration, 2016,21(6):1-8.
[7] 杜金虎,杨涛,李欣.中国石油天然气股份有限公司“十二五”油气勘探发现与“十三五”展望[J].中国石油勘探，2016,21(2):1-15. Du Jinhu, Yang Tao, Li Xin. Oil and gas exploration and discovery of PetroChina Company Limited during the 12th Five-Year Plan and the prospect during the 13th Five-Year Plan [J]. China Petroleum Exploration, 2016,21(2):1-15.
[8] 赵文智，邹才能，汪泽成，李建忠，李明，牛嘉玉. 富油气凹陷“满凹含油”论——内涵与意义[J]. 石油勘探与开发，2004,43(2):5-13. Zhao Wenzhi ,Zou Caineng, Wang Zecheng, Li Jianzhong, Li Ming, Niu Jiayu. The intension and signification of “Sub-basin-wide Oil-Bearing Theory” in the hydrocarbon-rich depression with terrestrial origin [J]. Petroleum Exploration and Development, 2004,43(2):5-13.
[9] 吴群，余文端，骆卫峰，臧素华，昝灵，吴伟.苏北盆地溱潼凹陷岩性油藏勘探成果及启示[J].中国石油勘探，2016,21(3):99-107. Wu Qun, Yu Wenduan, Luo Weifeng, Zang Suhua, Zan ling, Wu Wei. Achievements and recognitions of exploration in lithologic reservoirs in Qintong sag, North Jiangsu Basin[J]. China Petroleum Exploration, 2016,21(3):99-107.
[10] 石世革.孤北洼陷浊积水道砂体预测与岩性油气藏勘探[J].特种油气藏，2016,23(3):16-20. Shi Shige. Turbidite channel sandbody prediction and lithologic reservoir exploration in Gubei Sag [J]. Special Oil & Gas Reservoirs, 2016,23(3):16-20.
[11] 薛永安，杨海风，徐长贵.渤海海域黄河口凹陷斜坡带差异控藏作用及油气富集规律[J]. 中国石油勘探，2016,21(4):65-74. Xue Yongan, Yang Haifeng, Xu Changgui. Differential reservoir-controlling effect and hydrocarbon enrichment of slope zone in Huanghekou sag, Bohai Bay Basin [J]. China Petroleum exploration, 2016,21(4):65-74.
[12] 邹才能，袁选俊，陶士振，朱如凯，侯连华. 岩性地层油气藏[M]. 北京：石油工业出版社，2010. Zou Caineng, Yuan Xuanjun, Tao Shizhen, Zhu Rukai，Hou Lianhua. Litho-stratigraphic reservoirs [M]. Beijing: Petroleum Industry Press, 2010.
[13] 薛良清，樊太亮，许大丰，刘国强，黄伟，程炎. 苏丹Muglad盆地东北部AG组层序地层研究与勘探目标评价[J]. 石油与天然气地质，2004,25(5):506-512. Xue Liangqing, Fan Tailiang, Xu Dafeng, Liu Guoqiang, Huang Wei, Cheng Yan. Sequence stratigraphic study and exploration target appraisal of AG Formation in northeastern Muglad Basin, Sudan [J]. Oil &Gas Geology, 2004,25(5):506-512.
[14] 杨俊生，朱筱敏. 苏丹Muglad盆地Fula坳陷白垩系Abu Gabra组层序地层及沉积体系[J]. 沉积学报，2008,26(6):994-1004. Yang Junsheng, Zhu Xiaomin. Lower Cretaceous sequence stratigraphy of Fula Depression, Muglad Basin, Sudan [J]. Acta Sedimentologica Sinica, 2008,26(6):994-1004.
[15] 李建忠，赵文智，胡素云，杨涛，董大忠. 岩性地层型油气聚集区带的基本特征[J]. 石油学报，2007,28(1):14-19. Li Jianzhong, Zhao Wenzhi, Hu Suyun, Yang Tao, Dong Dazhong. Principal features of stratigraphic-lithological hydrocarbon accumulation zone [J]. Acta Petrolei Sinica, 2007,28(1):14-19.
[16] 贾承造，赵文智，邹才能，冯志强，袁选俊，池英柳，等.岩性地层油气藏地质理论与勘探技术[J].石油勘探与开发，2007,34(3):257-272. Jia Chengzao, Zhao Wenzhi, Zou Caineng, Feng Zhiqiang, Yuan Xuanjun, Chi Yingliu, et al. Geological theory and exploration technology for litho-stratigraphic hydrocarbon reservoirs [J]. Petroleum Exploration and Development, 2007,34(3):257-272.
[17] 牛嘉玉，侯启军，祝永军，姚逢昌，廖前进，刘蕴华.岩性和地层油气藏地质与勘探[M].北京：石油工业出版社，2007. Niu Jiayu, Hou Qijun, Zhu Yongjun, Yao Fengchang, Liao Qianjin, Liu Yunhua. Geology and exploration for litho-stratigraphic reservoirs [M]. Beijing: Petroleum Industry Press, 2007.
[18] 方甲中，杨俊生，张琴，朱筱敏.苏丹Fula坳陷同裂谷期构造格局和沉积体系分布[J].西安石油大学学报：自然科学版，2008,23(3):27-31. Fang Jiazhong, Yang Junsheng, Zhang Qin, Zhu Xiaomin. Tectonic framework and depositional system distribution of syn-rift in Fula Depression, Muglad Basin, Sudan[J]. Journal of Xi′an Shiyou University: Natural Science Edition, 2008,23(3):27-31.
[19] 李德江，朱筱敏，杨俊生.苏丹Muglad盆地Fula坳陷白垩系Abu Gabra组地震相研究[J].石油与天然气地质，2007,28(1):51-58. Li Dejiang, Zhu Xiaomin, Yang Junsheng. Seismic facies of the Cretaceous Abu Gabra Formation in Fula Depression, Muglad Basin, Sudan [J]. Oil & Gas Geology, 2007,28(1):51-58.
[20] 黄先雄，王林.Fula坳陷Abu Gabra组沉积相及成藏控制因素分析[J].大庆石油地质与开发，2007，35(5)：41-44. Huang Xianxiong, Wang Lin. Study on sedimentary facies and hydrocarbon generation controlling factors in Abu Gabra Formation in Fula depression [J]. Petroleum Geology & Oilfield Development in Daqing, 2007,35(5):41-44.
[21] 罗小平，沈忠民，黄飞，林壬子. 苏丹M盆地储集层流体地球化学特征与油藏注入史[J]. 石油勘探与开发，2006,33(1):119-126. Luo Xiaoping, Shen Zhongmin, Huang Fei, Lin Renzi. Geochemistry characteristics of fluid and the filling history of heavy oil reservoir in the M Basin, Sudan [J]. Petroleum Exploration and Development, 2006,33(1):119-126.
[22] 罗小平，张同周，王伟栋，沈忠民，林壬子.苏丹M盆地原油地球化学特征与母质的沉积环境探讨[J].地质地球化学，2003,31(2):80-86. Luo Xiaoping, Zhang Tongzhou, Wang Weidong, Shen Zhongmin, Lin Renzi. Geochemical characteristics of crude oil and sedimentary environment of rocks In sajia rise of M Basin, Sudan [J]. Geology-Geochemistry, 2003,31(2):80-86.
[23] 胥菊珍，罗小平，王海宏. 东非M盆地福拉凹陷烃源岩及原油地球化学特征[J]. 石油勘探与开发，2003,30(4):122-126. Xu Juzhen, Luo Xiaoping, Wang Haihong. Source rock evaluation and crude oil geochemistry in the Fula Depression, M-Basin, East Africa [J]. Petroleum Exploration and Development, 2003,30(4):122-126.
[24] 罗小平，单献国，张同周，许书堂.M盆地烃源岩有机显微组分特征与生烃潜力初探[J].西安石油学院学报：自然科学版，1998,13(4):34-36. Luo Xiaoping, Shan Xianguo, Zhang Tongzhou, Xu Shutang. Discussion on the characteristics of organic macerals and hydrocarbon-generating potential of the source rock in M Basin [J]. Journal of Xi'an Shiyou University: Natural Science Edition, 1998,13(4):34-36.
[25] 成海燕，李安龙，龚建明.陆相烃源岩评价参数浅析[J].海洋地质动态，2008,24(2):6-10. Cheng Haiyan, Li Anlong, Gong Jianming. Analysis on evaluation parameters of terrestrial source rocks [J]. Marine Geology Letters, 2008,24(2):6-10.
[26] Passey Q R, Creaney S, Kulla J B, et al. A practical model for organic richness from porosity and resistivity logs [J]. AAPG Bulletin, 1990,74(12):1777-1794.