北部湾盆地海域油气勘探历程与启示

doi:10.7657/XJPG20210310

摘要/Abstract

摘要：

分析钻井、地震、储量、产量等历史数据,总结勘探成果、勘探领域、石油地质理论,将北部湾盆地海域勘探历程划分为3个阶段。早期探索阶段（1960—1995年）,钻井证实北部湾盆地具备良好的烃源岩和生储盖组合,明确了北部湾盆地的基本构造特征,划分了二级构造单元;20世纪80年代的对外合作高潮,为下一步油气勘探奠定了良好基础。涠西南凹陷突破及滚动勘探阶段（1995—2010年）,以涠洲12-1油田为代表一批油田的发现和成功评价,北部湾盆地海域累计探明石油储量突破1×10⁸ t;面对涠西南凹陷满凹含油但油田规模较小的难题,提出滚动勘探战略,实现了储量升级和增加。乌石凹陷突破及新领域探索阶段（2010年至今）,以乌石17-2油田为代表一批油田的发现和成功评价,证明乌石凹陷是北部湾盆地继涠西南凹陷之后又一被证实的富烃凹陷,开启了北部湾盆地勘探的新局面;同时对潜山油气藏等新领域积极探索,为后续的可持续发展积蓄力量。

关键词: 北部湾盆地, 涠西南凹陷, 乌石凹陷, 潜山油气藏, 勘探阶段, 勘探启示

Abstract:

The paper analyzes the historical data of drilling, seismic survey, reserves and production, summarizes the offshore exploration achievements and targets and petroleum geology theory, then divides the offshore exploration process in the Beibu Gulf basin into three stages: (1) Early exploration stage (1960-1995). Drilling results proved that there are good source rocks and source-reservoir-cap assemblages in the Beibu Gulf basin, the basic structural characteristics was understood, and the secondary tectonic units were divided. Early exploration results laid a good foundation for further oil and gas exploration during 1980s when there was a high tide of foreign cooperation. (2) Breakthrough to the Weixinan sag and progressive exploration stage (1995-2010). The discovery and successful evaluation of a number of oilfields represented by Weizhou 12-1 firstly contributed to the cumulative proven geological reserves of oil in the Beibu Gulf basin exceeding 100 million tons. Facing the condition that the Weixinan sag is full of oil but the average size of the oilfields in the sag is relatively small, a progressive exploration strategy was put forward, which broke the bottleneck and realized the upgrading and increase of reserves. (3) Breakthrough to the Wushi sag and exploration into new areas (since 2010). The discovery and successful evaluation of a number of oilfields represented by Wushi 17-2 proved that the Wushi sag is another hydrocarbon-rich sag that has been confirmed by drilling data following the breakthrough of the Weixinan sag. This opened a new prospect in the Beibu Gulf basin. Meanwhile, the exploration to new targets such as buried-hill reservoirs led to the identification of a number of pre-Paleogene carbonate reservoirs which are potential contribution to sustainable development.

Key words: Beibu Gulf basin, Weixinan sag, Wushi sag, buried-hill oil and gas reservoir, exploration stage, exploration enlightenment

中图分类号:

TE132

李凡异, 张厚和, 李春荣, 张文昭, 郝婧, 徐庆梅, 严寒. 北部湾盆地海域油气勘探历程与启示[J]. 新疆石油地质, 2021, 42(3): 337-345.

LI Fanyi, ZHANG Houhe, LI Chunrong, ZHANG Wenzhao, HAO Jing, XU Qingmei, YAN Han. Offshore Petroleum Exploration History and Enlightenment in Beibu Gulf Basin[J]. Xinjiang Petroleum Geology, 2021, 42(3): 337-345.

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参考文献 16

[1]	李春荣, 张功成, 梁建设, 等. 北部湾盆地断裂构造特征及其对油气的控制作用[J]. 石油学报, 2012,33(2):195-203.
	LI Chunrong, ZHANG Gongcheng, LIANG Jianshe, et al. Characteristics of fault structure and its control on hydrocarbons in the Beibuwan basin[J]. Acta Petrolei Sinica, 2012,33(2):195-203.
[2]	朱伟林, 江文荣. 北部湾盆地涠西南凹陷断裂与油气藏[J]. 石油学报, 1998,19(3):6-10.
	ZHU Weilin, JIANG Wenrong. Relations between fractures and hydrocarbon reservoirs in Weixinan sag[J]. Acta Petrolei Sinica, 1998,19(3):6-10.
[3]	李才, 杨希冰, 范彩伟, 等. 北部湾盆地演化及局部构造成因机制研究[J]. 地质学报, 2018,92(10):2 028-2 038.
	LI Cai, YANG Xibing, FAN Caiwei, et al. On the evolution process of the Beibu Gulf basin and forming mechanism of local structures[J]. Acta Geological Sinica, 2018,92(10):2 028-2 038.
[4]	于水, 邓运华, 李宏义, 等. 北部湾盆地流二段油页岩形成条件与分布控制因素[J]. 中国海上油气, 2020,32(2):24-33.
	YU Shui, DENG Yunhua, LI Hongyi, et al. Forming conditions and distribution controlling factors of oil shale in Liu 2 Member of Beibuwan basin[J]. China Offshore Oil and Gas, 2020,32(2):24-33.
[5]	李友川, 王柯, 兰蕾. 北部湾盆地主要凹陷油气差异性及其控制因素[J]. 中国海上油气, 2020,32(5):1-8.
	LI Youchuan, WANG Ke, LAN Lei. Oil and gas differences and their controlling factors of the main sags in the Beibuwan basin[J]. China Offshore Oil and Gas, 2020,32(5):1-8.
[6]	谢瑞永, 黄保家, 李旭红, 等. 北部湾盆地涠西南凹陷流沙港组烃源岩生烃潜力评价[J]. 地质学刊, 2014,38(4):670-675.
	XIE Ruiyong, HUANG Baojia, LI Xuhoug, et al. Hydrocarbon generation potential evaluation of source rocks in Liushagang formation in Weixinan sag of Beibuwan basin[J]. Journal of Geology, 2014,38(4):670-675.
[7]	谢玉洪, 高阳东. 中国海油近期国内勘探进展与勘探方向[J]. 中国石油勘探, 2020,25(1):20-30.
	XIE Yuhong, GAO Yangdong. Recent domestic exploration progress and direction of CNOOC[J]. China Petroleum Exploration, 2020,25(1):20-30.
[8]	张利健, 田盼盼, 任宜伟, 等. 海上油田水驱开发注水压力优化[J]. 新疆石油地质, 2021,42(1):63-67.
	ZHANG Lijian, TIAN Panpan, REN Yiwei, et al. Optimization of water injection pressure in developing offshore oil reservoirs[J]. Xinjiang Petroleum Geology, 2021,42(1):63-67.
[9]	陈奎. 海上勘探开发一体化技术研究及应用:以北部湾盆地澜西南凹陷为例[J]. 石油学报, 2020,41(1):68-79.
	CHEN Kui. Research and application of integrated technology for offshore exploration and development:a case study of Weixinan sag in the Beibuwan basin[J]. Acta Petrolei Sinica, 2020,41(1):68-79.
[10]	朱伟林, 米立军. 中国海域含油气盆地图集[M]. 北京: 石油工业出版社, 2010.
	ZHU Weilin, MI Lijun. Altas of oil and gas basins,China sea[M]. Beijing: Petroleum Industry Press, 2010.
[11]	胡林, 杨希冰, 徐雪丰, 等. 南海北部湾盆地乌石凹陷成藏主控因素与成藏模式[J]. 海洋地质与第四纪地质, 2016,36(2):121-127.
	HU Lin, YANG Xibing, XU Xuefeng, et al. Main controling factors and accumulation models of hydrocarbon in Wushi sag,Beibu Gulf basin,South China sea[J]. Marine Geology & Quaternary Geology, 2016,36(2):121-127.
[12]	徐雪丰, 杨希冰, 胡林, 等. 乌石凹陷断裂特征及其对油气成藏的影响[J]. 天然气技术与经济, 2016,10(2):17-21.
	XU Xuefeng, YANG Xibing, HU Lin, et al. Characteristics of fractures in Wushi sag and their influence on hydrocarbon accumulation[J]. Natural Gas Technology and Economy, 2016,10(2):17-21.
[13]	赵顺兰, 赵亚卓, 杨希冰, 等. 北部湾盆地涠西南凹陷碳酸盐岩潜山储层特征与主控因素分析[J]. 海洋学报, 2018,40(9):43-52.
	ZHAO Shunlan, ZHAO Yazhuo, YANG Xibing, et al. An analysis on the characteristics and main controlling factors of reservoir in carbonate buried hill in the Weixi’nan sag,Beibuwan basin[J]. Acta Oceanologica Sinica, 2018,40(9):43-52.
[14]	赵顺兰, 陈林, 李才, 等. 涠西南凹陷碳酸盐岩潜山原油来源及成藏模式[J]. 长江大学学报(自然科学版), 2019,16(6):1-7.
	ZHAO Shunlan, CHEN Lin, LI Cai, et al. Source and reservoir formation pattern of carbonate buried hill crude oil in Weixinan sag[J]. Journal of Yangtze University(Natural Science Edition), 2019,16(6):1-7.
[15]	徐守立, 尤丽, 代龙, 等. 北部湾盆地涠西南凹陷灰岩潜山储层特征及分布规律[J]. 海洋地质与第四纪地质, 2020,40(1):94-103.
	XU Shouli, YOU Li, DAI Long, et al. Characteristics of limestone buried-hills and their distribution in the Weixi’nan depression of the Beibu Gulf basin[J]. Marine Geology & Quaternary Geology, 2020,40(1):94-103.
[16]	王睿思, 曾庆桥, 黄埔, 等. 潜山油藏注气重力驱高精度数值模拟[J]. 新疆石油地质, 2020,41(2):180-187.
	WANG Ruisi, ZENG Qingqiao, HUANG Pu, et al. High-resolution numerical simulation for gas injection gravity drainage in buried-hill reservoirs[J]. Xinjiang Petroleum Geology, 2020,41(2):180-187.