Carbon Dioxide Geological Storage Potential And Of Tarim Basin

As the greenhouse effect on global climate influence more and more serious, the control air concentration of CO2 to tackle global warming became the most important means. Carbon dioxide geological storage as at present can in short time control emissions of carbon dioxide and one of the most effective ways to attention.In this paper the tarim basin as research object, by the basin of various first-order tectonic units as a research unit. Through collecting the tarim basin geology, hydrology geology and oil and gas field geological and other material, the tarim basin basement lithology, structure, strata, oil and gas formation, geothermal ground pressure, the geological characteristics and parameters of the tarim basin the first-order tectonic units 800-3500 m buried deep interval oil, gas and coal seam gas field and salt water aquifers deep four types of storage space for presumed potential calculation and suitable assessment.As a crust stability good cold basin, tarim basin has superior carbon dioxide geological storage conditions. The study, tarim basin 800-3500 m buried deep interval formed much set of store cover layers. Reservoir mainly includes the carboniferous, Triassic, Jurassic, and cretaceous and the lower tertiary formation. The tarim basin by the thick strata and reservoir exhibition cloth influence, this research carboniferous reservoir is mainly distributed in the central uplift the tower area, lower and upper tertiary middle reservoirs are mainly distributed in kuche depression piedmont region, northern uplift the northern part of the region and piedmont region in southwest depression, Triassic, Jurassic and cretaceous in the central part of the basin area exhibition area broad cloth. In sedimentary cover condition is good, the carboniferous and Permian, the Triassic, Jurassic, lower and upper tertiary middle have regional caprocks development to cover the whole basin on the almost tertiary JiDiKe group for the cover of the best.Use the "national carbon dioxide geological storage potential evaluation and demonstration project implementation technology requirements" formula of calculation and collect the parameters, calculated the tarim basin D level of reserves total for potential presumption 1034.40 × 108t. According to the reservoir type division, the largest salt water aquifers deep reserves, for 980.94 × 108t, oil reserves 4.1 × 108t, gas reserves 44.88 x 108t, CBM reserves field 4.48 by 108 t. According to the first-order tectonic units classification to the north faulted reservoir reserves the most is 404.23 x 108t, kuche depression 58.62 × 108t, northern uplift 132.18 × 108t, the central uplift 287.66 ×108t, in southwest depression of the 36.94 ×108t, southeast area (including the south tower uplift and southeast faulted reservoir) 117.83 ×108 t.Through the indexes that the tarim basin tectonic units of suitability assessment are preferable, and finally determined that tower and full he faulted reservoir area and southern kuche depression piedmont region for the most appropriate area. In tarim basin mainly trap distribution will target the target area in delineating caledonian paleogeomorphology kuche depression, piedmont region and northern uplift the north.