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石油与天然气地质勘探工作的最终目的就是对某个地区的构造、沉积及成岩进行综合评价,以便准确地寻找新的勘探靶区或油田。然而,长期以来人们在这方面的研究是各自独立的进行,这对新的勘探地区进行综合评价与预测,尤其是精确布井产生了一定的困难。因而,多学科的综合研究则是当前石油与天然气勘探的主要方法与内容。作者以松辽盆地南部梨树坳陷后五家户气田为例。从盆地的构造演化、沉积体系分布的分析入手,研究了该区的主要产气层位的成岩特征及成岩演化机理,建立了构造、沉积与成岩三者的综合一体化模式,进而对该区的储层发育、成因与展布进行了详细的分析。这一研究思路与方法或许是今后油气勘探研究的方向与主体内容之一。
The ultimate goal of the geological exploration of oil and gas is to make a comprehensive assessment of the tectonics, sedimentation and diagenesis in a certain area in order to accurately find new exploration targets or fields. However, people’s research in this field has been carried out independently for a long time, which makes a comprehensive evaluation and prediction of new exploration areas. In particular, precision drilling has some difficulties. Therefore, multi-disciplinary and comprehensive research is the main method and content of oil and gas exploration. The author takes Wujiaju gas field in Lishu depression, southern Songliao basin as an example. Beginning with the analysis of tectonic evolution and distribution of sedimentary system in the basin, the diagenesis and diagenetic evolution mechanism of the main gas-producing beds in this area are studied, and a comprehensive and integrated model of tectonic, sedimentary and diagenetic is established. Reservoir development, causes and distribution of a detailed analysis. This research idea and method may be one of the main directions and main contents of the research on oil and gas exploration in the future.