岩性油气藏 ›› 2023, Vol. 35 ›› Issue (6): 82–91.doi: 10.12108/yxyqc.20230610

• 地质勘探 • 上一篇    下一篇

非洲Muglad盆地Fula凹陷白垩系AG组岩性油气藏勘探潜力

刘计国, 周鸿璞, 秦雁群, 邹荃, 郑凤云, 李早红, 肖高杰   

  1. 中国石油勘探开发研究院, 北京 100083
  • 收稿日期:2023-06-02 修回日期:2023-07-10 出版日期:2023-11-01 发布日期:2023-11-07
  • 第一作者:刘计国(1973—),男,博士,高级工程师,主要从事非洲地区石油地质综合研究。地址:(100083)北京市海淀区学院路20号。Email:ljiguo@petrochina.com.cn。
  • 通信作者: 周鸿璞(1991-),男,博士,工程师,主要从事非洲地区石油地质综合研究。Email:zhouhp21@petrochina.com.cn
  • 基金资助:
    中国石油天然气股份有限公司科学研究与技术开发项目“海外复杂裂谷盆地精细勘探关键技术研究”(编号:2021DJ3103); 中油国际技术研发项目“Fula凹陷岩性油藏和Bongor北部斜坡带页岩油勘探关键技术研究”(编号:2023-YFJJ-01)联合资助

Exploration potential of lithologic reservoirs of Cretaceous AG Formation in Fula Sag,Muglad Basin,Africa

LIU Jiguo, ZHOU Hongpu, QIN Yanqun, ZOU Quan, ZHENG Fengyun, LI Zaohong, XIAO Gaojie   

  1. PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China
  • Received:2023-06-02 Revised:2023-07-10 Online:2023-11-01 Published:2023-11-07

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摘要： 借鉴国内断陷盆地岩性油气藏勘探理论与技术,运用层序地层学分析方法,对中非裂谷系Muglad盆地Fula凹陷开展多级次层序地层划分、烃源岩地化分析、油气成藏规律研究和有利区带划分与潜力评价。研究结果表明:①受基准面旋回发育控制,Fula凹陷AG组可划分为5个三级层序,湖泛面附近是岩性油气藏最有利分布位置。②研究区AG组主要发育三大物源体系,福西陡坡带为短轴近物源快速沉积,相带平面展布较窄;东北部发育辫状河三角洲沉积,展布范围较大,沉积持续时间长;AG组沉积晚期在东南部发育一套展布范围较小的辫状河三角洲沉积;三角洲前缘和滨浅湖滩坝是岩性油气藏发育的有利相带。③AG组AG2段(SQ4)暗色泥岩主要沉积于浅湖—半深湖环境,干酪根类型为Ⅰ—Ⅱ1型,TOC平均为3.41%,生烃潜量(S1+S2)多大于8 mg/g,为好—极好烃源岩,可为构造-岩性油气藏的形成提供充足的油气来源。④AG组可划分出7个岩性油气区带,其中Fula-Moga斜坡带北部成藏条件优越,勘探潜力大。

关键词: 岩性油气藏, 湖泛面, 三角洲前缘, 滩坝, 岩性区带, Fula-Moga斜坡带, AG组, 白垩系, Fula凹陷, Muglad盆地

Abstract: Referring to the domestic exploration theory and technology of lithologic oil and gas reservoirs in fault basins,sequence stratigraphy analysis method was used to carry out multi-scale sequence stratigraphy division,geochemical analysis of source rocks,research on hydrocarbon accumulation rules,favorable zone division and potential evaluation of Fula Sag in Muglad Basin of Central African Rift System. The results show that:（1）Five third-order sequences can be identified based on the sea level changes,and the flooding surface is the most favorable vertical location for lithologic reservoirs.（2）There are three major provenance systems in AG Formation in the study area. Fula-west steep slope belt is short-axis with rapid deposition and narrow distribution of facies zones. Braided river delta system is continuously developed with wide distribution in the northeastern part of the study area,and braided river delta system is limited developed in the southeastern part at the later period. The delta front and beach bar in shore-shallow lacustrine are the most favorable sedimentary facies for lithologic reservoirs.（3）Grey-dark mudstones developed in AG2 member（SQ4 sequence）of AG Formation are mainly deposited in shallow lake to semi-deep lake environment. The kerogen is type Ⅰ-Ⅱ1,the average total organic carbon（TOC）content is 3.41%,and the hydrocarbon generation potential（S1+ S2）is greater than 8 mg/g,which are good-excellent source rocks and the material basis for the forming of structural-lithologic reservoirs.（4）The AG Formation can be divided into seven lithologic reservoirs zones,among which the northern Fula-Moga slope zone has favorable conditions for hydrocarbon accumulation and great exploration potential.

Key words: lithologic reservoirs, flooding surface, delta front, beach bar, lithologic zones, Fula-Moga slope zone, AG Formation, Cretaceous, Fula Sag, Muglad Basin

中图分类号: 

  • TE121.3+1
[1] LEVORSEN A I. The obscure and subtle trap[J]. AAPG Bulletin,1966,50(10):2058-2067.
[2] 邹才能,袁选俊,陶士振,等.岩性地层油气藏[M].北京:石油工业出版社,2010.ZOU Caineng,YUAN Xuanjun,TAO Shizhen,et al. Lithologic stratigraphic reservoirs[M]. Beijing:Petroleum Industry Press,2010.
[3] 贾承造,赵文智,邹才能,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,et al. Geological theory and exploration technology for lithostratigraphic hydrocarbon reservoirs[J]. Petroleum Exploration and Development,2007,34(3):257-272.
[4] 牛嘉玉,侯启军,祝永军,等.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,et al. Geology and exploration for lithostratigraphic reservoirs[M]. Beijing:Petroleum Industry Press,2007.
[5] 李丕龙,金之钧,张善文,等.济阳坳陷油气勘探现状及主要研究进展[J].石油勘探与开发,2003,30(3):1-4.LI Pilong,JIN Zhijun,ZHANG Shanwen,et al. The present research status and progress of petroleum exploration in the Jiyang Depression[J]. Petroleum Exploration and Development,2003,30(3):1-4.
[6] 贾承造,赵文智,邹才能,等.岩性地层油气藏勘探研究的两项核心技术[J].石油勘探与开发,2004,31(3):3-9.JIA Chengzao,ZHAO Wenzhi,ZOU Caineng,et al. Two key technologies about exploration of stratigraphic/lithological reservoirs[J]. Petroleum Exploration and Development,2004,31(3):3-9.
[7] 杜家元,丁琳,张向涛,等.珠江口盆地惠州凹陷西南部新近系岩性油气藏勘探思路与关键技术[J].石油实验地质,2017,39(6):858-864.DU Jiayuan,DING Lin,ZHANG Xiangtao,et al. Exploration approach and techniques for the Neogene lithological reservoirs in the southwestern Huizhou Sag,Pearl River Mouth Basin[J].Petroleum Geology&Experiment,2017,39(6):858-864.
[8] 朱如凯,崔景伟,毛治国,等.地层油气藏主要勘探进展及未来重点领域[J].岩性油气藏,2021,33(1):12-24.ZHU Rukai,CUI Jingwei,MAO Zhiguo,et al. Main exploration progress and future key fields of stratigraphic reservoirs[J]. Lithologic Reservoirs,2021,33(1):12-24.
[9] 窦立荣,潘校华,田作基,等.苏丹裂谷盆地油气藏的形成与分布:兼与中国东部裂谷盆地对比分析[J].石油勘探与开发,2006,33(3):255-261.DOU Lirong,PAN Xiaohua,TIAN Zuoji,et al. Hydrocarbon formation and distribution of rift basins in Sudan:A comparative analysis of them with rift basins in East China[J]. Petroleum Exploration and Development,2006,33(3):255-261.
[10] 芮志锋,林畅松,杜家元,等.关键层序界面识别及其在岩性油气藏勘探中的意义:以惠州凹陷珠江组为例[J].岩性油气藏,2019,31(1):96-105.RUI Zhifeng,LIN Changsong,DU Jiayuan,et al. Key sequence surfaces identification and its significance in the exploration of lithologic reservoirs:A case of Zhujiang Formation in Huizhou Depression[J]. Lithologic Reservoirs,2019,31(1):96-105.
[11] 牛成民,杜晓峰,王启明,等.渤海海域新生界大型岩性油气藏形成条件及勘探方向[J].岩性油气藏,2022,34(3):1-14.NIU Chengmin,DU Xiaofeng,WANG Qiming,et al. Formation conditions and exploration direction of large-scale lithologic reservoirs of Cenozoic in Bohai Sea[J]. Lithologic Reservoirs,2022,34(3):1-14.
[12] 张光亚,黄彤飞,刘计国,等.中西非叠合裂谷盆地形成与演化[J].岩石学报,2022,38(9):2539-2553.ZHANG Guangya,HUANG Tongfei,LIU Jiguo,et al. Formation and evolution of West and Central African superimposed rift basins[J]. Acta Petrologica Sinica,2022,38(9):2539-2553.
[13] 张艺琼,何登发,童晓光.中非剪切带含油气盆地成因机制与构造类型[J].石油学报,2015,36(10):1234-1247.ZHANG Yiqiong,HE Dengfa,TONG Xiaoguang. Genetic mechanisms and tectonic types of petroliferous basins in the Central Africa Shear Zone[J]. Acta Petrolei Sinica,2015,36(10):1234-1247.
[14] 窦立荣,程顶胜,於拥军,等.据磷灰石裂变径迹和镜质体反射率重建苏丹Muglad盆地北部的构造-热演化历史[J].石油学报,2021,42(8):986-1002.DOU Lirong,CHENG Dingsheng,YU Yongjun,et al. Tectonicthermal evolution history reconstruction of the northern Muglad Basin in Sudan based on apatite fission track analysis and vitrinite reflectance data[J]. Acta Petrolei Sinica,2021,42(8):986-1002.
[15] 汪望泉,窦立荣,张志伟,等.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,2007,34(1):124-127.WANG Wangquan,DOU Lirong,ZHANG Zhiwei,et al. Transfer zone character and its relationship to hydrocarbon in Fula Sag,Sudan[J]. Petroleum Exploration and Development,2007,34(1):124-127.
[16] 黄彤飞,张荻萩,李曰俊,等.苏丹Muglad盆地Fula凹陷福西陡坡带变换构造特征及控藏作用[J].中国石油勘探,2020,25(4):105-114.HUANG Tongfei,ZHANG Diqiu,LI Yuejun,et al. Characteristics of transfer structure and hydrocarbon accumulation control of Fula western steep slope belt in the Fula Sag,Muglad Basin,Sudan[J]. China Petroleum Exploration,2020,25(4):105-114.
[17] 吴冬,朱筱敏,刘常妮,等. Fula凹陷中央转换带对岩性油气藏勘探的意义:以Abu Gabra组为例[J].岩性油气藏,2017,29(4):64-72.WU Dong,ZHU Xiaomin,LIU Changni,et al. Significance of central transfer zone on lithologic reservoir exploration:A case of Abu Gabra Formation in Fula Sag,Muglad Basin,Sudan[J]. Lithologic Reservoirs,2017,29(4):64-72.
[18] 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.
[19] 陈诚,朱怡翔,石军辉,等.断陷湖盆浅水三角洲的形成过程与发育模式:以苏丹Muglad盆地Fula凹陷Jake地区AG组为例[J].石油学报,2016,37(12):1508-1517.CHEN Cheng,ZHU Yixiang,SHI Junhui,et al. The forming process and development pattern of shallow water delta in fault depression lacustrine basin:A case study of AG Formation in the Jake area in Fula Sag,Muglad Basin,Sudan[J]. Acta Petrolei Sinica,2016,37(12):1508-1517.
[20] 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.
[21] 李威,窦立荣,张光亚,等.苏丹Muglad盆地Fula坳陷油气地球化学特征与成藏意义[J].地学前缘,2018,25(2):121-129.LI Wei,DOU Lirong,ZHANG Guangya,et al. Geochemical characteristics of crude oil and their implications for hydrocarbon accumulation in the Fula sub-basin,Muglad Basin,Sudan[J]. Earth Science Frontiers,2018,25(2):121-129.
[22] 毛凤军,肖洪,刘计国,等.中非裂谷系Muglad盆地下白垩统烃源岩非均质性及其启示[J].西安石油大学学报(自然科学版),2022,37(6):11-21.MAO Fengjun,XIAO Hong,LIU Jiguo,et al. Organic geochemical heterogeneity of Lower Cretaceous source rock in Muglad Basin Central African Rift System and its implications for petroleum exploration[J]. Journal of Xi’an Shiyou University(Natural Science Edition),2022,37(6):11-21.
[23] 曾雨晴.苏丹Muglad盆地烃源岩和原油的地球化学特征[D].北京:中国石油大学(北京),2019.ZENG Yuqing. Geochemical characteristics study of source rocks and crude oils in the Muglad Basin,Sudan[D]. Beijing:China University of Petroleum(Beijing),2019.
[24] 张亚敏,赵万优,陈向军,等.苏丹穆格莱德盆地Fula凹陷油气富集特征[J].现代地质,2008,22(4):634-639.ZHANG Yamin,ZHAO Wanyou,CHEN Xiangjun,et al. Hydrocarbon enrichment patterns of Bonanza pool in Fula Depression of Muglad Basin,Sudan[J]. Geoscience,2008,22(4):634-639.
[25] 刘淑文,李志,潘校华,等.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,et al. 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.
[26] 李建忠,赵文智,胡素云,等.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,et al. Principal features of stratigraphic-lithological hydrocarbon accumulation zone[J]. Acta Petrolei Sinica,2007,28(1):14-19.
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[5] 方朝合, 王义凤, 郑德温, 葛稚新. 苏北盆地溱潼凹陷古近系烃源岩显微组分分析[J]. 岩性油气藏, 2007, 19(4): 87 -90 .
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[7] 戴朝成，郑荣才，文华国，张小兵. 辽东湾盆地旅大地区古近系层序—岩相古地理编图[J]. 岩性油气藏, 2008, 20(1): 39 -46 .
[8] 尹艳树，张尚峰，尹太举. 钟市油田潜江组含盐层系高分辨率层序地层格架及砂体分布规律[J]. 岩性油气藏, 2008, 20(1): 53 -58 .
[9] 石雪峰，杜海峰. 姬塬地区长3—长4+5油层组沉积相研究[J]. 岩性油气藏, 2008, 20(1): 59 -63 .
[10] 严世邦，胡望水，李瑞升，关键，李涛，聂晓红. 准噶尔盆地红车断裂带同生逆冲断裂特征[J]. 岩性油气藏, 2008, 20(1): 64 -68 .

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