The Research On The Coal And Petroleum Geological Features And The Reasonable Development Countermeasures In Zi Chang Mining Area

Zichang mining area is located in the northern city of Yanan of shaanxi Province, wherethe mining area,oil resources symbiosis,resource reserves, Oil and coal,the two types ofresources that emerged in Upper Triassic Yanchang group interlap in the vertical,Coal miningand oil development has produced mutual restricted of different degree and adverse effects.Tocarry out Researchs on the Coal and Petroleum Geological Features and the ReasonableDevelopment Countermeasures in Zi Chang Mining area has important significance inpromoting the sustainable development of the mining area.On the basis of summarized Zichang mining area strata, structure,hydrogeology，engineering geology and mining technology conditions in this paper, Researched thegeological characteristics of coal and oil in Zichang mining area,delineated the mineable coalseam and oil distribution area. The coal-bearing stratum in Zichang mining area is the upperTriassic Wayaobao group, the minable coal seam are No.3coal seam and No.5coal seam.The oil-bearing strata is Upper Triassic Yanchang group,is divided into five members and tenstrata groups.The stacked relationship of Coal seam and oil reservoir is mainly coal is aboveand oil in the following.Through the investigation of the existing oil resources development present situation,theproblem that The mutual impact of coal and oil resources development are moreprominent,mainly in the coal mining caused part of oil well damage even scrapped,the oilwell has restricted the coal mass production, occupied a large number of coal resources andthreatened coal mine safety production work.Be aimed at coal and oil resources resourcescoexist in zichang mining area,and part of the region and the actual development, somesuggestions and Countermeasures of preserving coal to product oil and preserving oil to product coal are put forward.According to the coal,and oil geological characteristics andexploration and research degree, combining the current situation of coal mining,petroleumdevelopment planning, the area is divided into a total of coal and oil mining area(I),oil firstmining area (II),giving priority to coal mining district (III) three kinds of rationaldevelopment zone,and puts forward the development countermeasures of partitioncorresponding three kinds of development.