摘要
川西地区以负向构造为主,多期构造演化叠加,断裂发育、储层致密,气水关系复杂,物探采集、成像及储层预测技术适应性较差。概要介绍了分公司在川西地区油气勘探开发历程,总结了随着地质目标变化而形成的物探关键技术及其发展过程,分析了现有采集、处理、解释技术对地质目标的适用性及优缺点,剖析了侏罗系近源薄互层致密砂岩气藏、须家河近源致密气藏以及山前带超深层碳酸盐岩气藏等下一步重点勘探开发目标的研究难点,展望了高精度成像、低频资料储层预测、多尺度断裂系统刻画以及油气水识别等关键物探技术的发展和应用前景,对应用物探前沿技术支撑川西复杂油气区高效勘探开发具有一定的指导意义。
The western Sichuan Basin,one of the main petroleum exploration and development areas of SINOPEC Southwest Oil&Gas Company,is abundant in oil and gas resources.This area is dominated by anticlinal structures,with well-developed faults,tight reservoirs,and complex gas-water relationships,as a result of multi-phase structure evolution and superimposition.These features cause a subpar application of seismic acquisition,imaging and prediction techniques.In this paper,the operation history of SINOPEC Southwest Oil&Gas Company in western Sichuan Basin is reviewed.On this basis,the development of key geophysical prospecting technologies along with the variation of geological targets is clarified,and the existing seismic acquisition,processing and interpretation techniques are analyzed for their adaptability to geological targets and their strengths and weaknesses.Moreover,the challenges for exploring and developing the potential targets,such as the near-source thinly interbedded tight sandstone gas reservoirs in the Jurassic,the near-source tight gas reservoirs in the Xujiahe Formation,and the ultra-deep carbonate gas reservoirs in the piedmont zone,are dissected,and the prospects of key geophysical prospecting technologies including high-precision imaging,reservoir prediction based on low-frequency data,description of multi-scale fault system and oil/gas/water identification are proposed.The study results are of guiding significance for applying the cutting-edge geophysical prospecting technologies to efficient exploration and development of complex petroleum areas in western Sichuan Basin.
作者
赵爽
高博乐
马如辉
张聪玲
ZHAO Shuang;GAO Bole;MA Ruhui;ZHANG Congling(Exploration and Development Research Institute,Southwest Qil&Gas Company,SINOPEC,Chengdu 610000,China)
出处
《石油物探》
CSCD
北大核心
2024年第3期671-683,共13页
Geophysical Prospecting For Petroleum
基金
中国石化科技项目(P22073)资助。
关键词
四川盆地
川西地区
油气勘探开发
物探技术进展
发展方向
Sichuan Basin
western Sichuan Basin
oil&gas exploration and development
geophysical prospecting technology
development direction
