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永进地区先后在永1井、永2井、永6井侏罗系西山窑组Ⅱ砂组、煤层之下Ⅰ砂组和白垩系清水河组获得工业油气流。为迅速形成储采产能寻找有利油气储集相带,就成为地质研究的主要课题。本文采用地层倾角方位频率图和蓝模式矢量方向研究古水流方向和沉积砂体延伸方向和沉积砂体的相带变化特征。经研究证实:三角洲前缘水下分流河道和风化面下的三角洲平原分支河道是该区有利油气储集相带。据此追踪了永1井上倾方向至永3井西山窑组Ⅱ砂组和永8井上倾方向至永2井煤下Ⅰ砂组有利油气储集相带,并提出了相应层位打水平井的建议。
Yongjin area successively in the Yong 1 Well, Yong 2 Well, Yong 6 Well Jurassic Xishanyao Group Ⅱ sand group, under the seam Ⅰ sand group and the Cretaceous Qingshuihe group to obtain industrial oil and gas flow. For the rapid formation of production and storage capacity to find favorable oil and gas reservoir facies, has become the main issue of geological research. In this paper, the direction of paleocurrents and the extension direction of sedimentary sand bodies and the change of facies belts of sedimentary sand bodies are studied by the azimuth frequency of stratigraphic dip and the vector direction of blue patterns. The study confirmed that the delta front subaqueous distributary channel and the delta plain channel under the weathering surface are the favorable oil and gas reservoir facies belt in this area. According to this, the favorable oil and gas reservoir facies belts in upwelling direction from Yong 1 up to Xishanyao Formation Ⅱ sandstone in Yong 3 well and upwelling in Yong 8 well to coal seam Ⅰ sand group in Yong 2 well were traced, Suggestions.