合肥盆地原型恢复与油气评价的研究方法思考

RESEARCH METHOD ABOUT THE PROTOTYPE RESTORATION AND HYDROCARBON EVALUATION OF THE HEFEI BASIN

陈刚 李丕龙 李学田 阎汉杰 刘爱永 谭明友 贾红义

CHEN Gang LI Pi-long LI Xue-tian YAN Han-jie LIU Ai-yong TAN Ming-you JIA Hong-yi

西北大学, 地质系, 陕西, 西安, 710069 2. 中国石化, 胜利油田有限公司, 物探研究院, 山东, 东营, 257022

Department of Geology, Northwest University, Xi'an, Shaanxi 710069, China 2. Geophysical Research Institute, Shengli Oilfield, Dongying, Shandong 257022, China

依据合肥盆地研究目前存在的关键问题及其相关学科领域的前沿研究趋向,该文综合分析探讨了合肥盆地原型恢复与油气评价的基本原则、研究思路及其相应的多学科一体化研究方法,强调合肥盆地研究必须坚持"整体、动态、综合"的基本原则,采用盆地今-古构造分析与造山带演化相结合、原始盆地恢复与油气成藏动态预测相结合、地质与地球物理相结合的多学科一体化综合研究方法,全面揭示合肥盆地的原始地质构造面貌、形成演化及其多旋回复杂改造特点以及合肥盆地不同演化阶段油气成藏要素的形成-改造-赋存环境及其与油气成藏作用的时空配置关系,客观预测合肥盆地有利的油气成藏-保存单元和有利的勘探区带目标。

Based on the critical problems presently existing during the study of the Hefei Basin and the late research trend of related subject domains, the basic principles, the research train of thought and the corresponding multiple-subjects-combined research method for the prototype restoration and hydrocarbon evaluation of the basin were comprehensively analysed and discussed. It was emphasized that the study of the Hefei Basin must insist on the basic principles of overall, dynamic and comprehensive analyses. The multiple-subjects-combined comprehensive research method, which combining the former and modern structural analysis of the basin with the evolution of orogenic belts, the restoration of original basins with the dynamic prediction of hydrocarbon accumulation and geology with geophysics, was used to completely reveal the original geologic structure of the Hefei Basin and the characteristics of its formation, evolution and multicycle complex reconstruction, the formation-reconstruction-occurrence environments of hydrocarbon accumulation factors in the different evolutionary stages of the basin, and their space-time matching relation to hydrocarbon accumulation. Besides, the advantageous hydrocarbon accumulation-preservation units and the favorable exploration targets of the Hefei Basin were predicted objectively.

https://doi.org/10.11781/sysydz200203200