摘要
系统研究全球深层油气分布、储量、产量等勘探开发现状,总结中国陆上深层地球物理勘探技术研究进展及勘探成效,并指出面临的技术挑战与攻关方向。针对中国陆上深层油气勘探,分析了现阶段深层碎屑岩、碳酸盐岩及火山岩勘探所面临的低信噪比、低分辨率、低成像精度及低保真度等主要地球物理问题,明确了相应的宽线大组合二维及宽方位高密度三维采集、各向异性叠前深度偏移及逆时偏移、复杂构造建模及储集层定量预测等关键技术对策。在此基础上,从深层复杂构造成像与复杂储集层预测两个方面分析得出,宽频、保幅、高精度及信息综合是陆上深层地球物理勘探的技术挑战与攻关方向,并提出宽频地震采集、复杂储集层岩石物理建模、高精度叠前保幅成像、复杂储集层综合评价、非地震物探以及钻井地震导向等技术的研究与应用是未来深层地球物理技术发展的重点。
The global situation of distribution, reserves and production of deep oil and gas are examined systematically, the progress and exploration achievement of onshore China deep geophysical technology are summarized, and the challenges and developing direction of deep geophysical technology are pointed out. Aiming at the exploration of deep onshore strata in China, the article analyzes the key geophysical problems, such as low signal-to-noise ratio, low resolution, low imaging accuracy and low amplitude-preservation, in the exploration of deep clastic, carbonate, and volcanic reservoirs, and presents the corresponding technical countermeasures such as wide-line large-array 2-D acquisition, wide-azimuth and high-density 3-D acquisition, anisotropic pre-stack depth migration（PSDM）, reverse-time migration（RTM）, complex structure modeling, and quantitative reservoir prediction. The analysis from two aspects, imaging of deep complicated structures and prediction of deep complicated reservoirs, shows that wide-frequency, amplitude-preservation, high-accuracy and information integration are the challenges to and key issues in the geophysical technology. It is pointed out that wide-frequency seismic acquisition, rock physical modeling of complex reservoirs, high-accuracy prestack amplitude-preservation imaging, comprehensive evaluation of complex reservoirs, non-seismic techniques, and drilling steering with seismic data are the key geophysical techniques needed to be developed in the future.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2015年第4期414-424,共11页
Petroleum Exploration and Development
基金
国家科技重大专项(2011ZX05001-002)
国家重点基础研究发展计划(973)项目(2009CB219304)
关键词
地球物理技术
深层油气勘探
深层复杂构造成像
深层复杂储集层预测
geophysical technology
deep oil and gas exploration
deep complicated structure imaging
deep complicated reservoir prediction
