岩性地层油气藏勘探技术

Exploration Technology for Lithologic and Stratigraphic Oil and Gas Reservoirs

岩性、地层油气藏勘探面临圈闭识别难度大、油藏形成条件预测难度大等技术难题。二连盆地和渤海湾盆地冀中坳陷的岩性、地层油藏勘探中,为解决上述难题,探索、实验和应用了大量先进适用的技术方法,主要包括层序地层学、高分辨率地震处理、高精度层位标定、三维可视化解释、地震多属性分析、储层反演、油气层综合评价等。应用实践表明,这些技术方法在油气藏圈闭预探、圈闭评价和油藏描述中取得了满意的效果。同时,还探索、总结了较适用于不同阶段的隐蔽油藏勘探技术方法系列、研究线路和运用思路。

Lithologic and stratigraphic oil and gas reservoirs have some difficult technological issues, such as difficult identification of trap and difficult prediction of the formation conditions for the oil and gas reservoirs. To solve those issues in exploration of the lithologic and stratigraphic oil reservoirs in Erlian Basin and Jizhong Depression, a lot of advanced and applicable technologies have been adopted such as sequence stratigraphy, high-resolution seismic processing, high-precision level calibration, 3-D visualized interpretation, seismic multi-property analysis, reservoir inversion and integrated appraisal on oil and gas layers. The applied practice indicates that the satisfactory results have been achieved in preliminary exploration of the oil and gas reservoir, trap evaluation and oil reservoir description by means of those technologies. Meanwhile, a series of technologies and application theories for exploration of subtle oil reservoirs at the different stages have also been explored and summarized.