陕北大牛地气田太原组储层地质特征矿产普查与勘探专业论文.docxVIP

英文摘要Subject：Investigation 英文摘要 Subject：Investigation of the character of reservoir geology evaluation for Taiyuan formation in Shaanbei region Daniudi gas field． Speciality：Mineral resouce prospecting and exploration ABSTRACT Daniudi gas field iS located the northern ordos basin yishan eastern section of Northern Slope，across the yulin city of shaanxi province and the ordos city of Inner Mongolia，this article mainly research taiyuan formation，upper palaeozoic sedimentary system and reservoir development characteristics，through the understanding of regional geological setting，tectonic evolution and evolution，sedimentary system and on the basis of conducting the stratigraphic classification and correlation，establish the carboniferous taiyuan formation in daniudi gasfield， sequence stratigraphic framework to determine local structural characteristics and formation thickness distribution，the overall formation flat，local formation is volatile，monoclinic development from south to north，nose·like uplifts only in local development． Through the analysis of the sedimentary facies marks and electric logging curve， determine the taiyuan group for the offshore facies to the land and sea．Through the analysis of the floor plan and section，found tai 2 section period of sandstone thickness and continuity is higher than tai I section，tai 2 section have limestone lagoon facies developed，while tai 1 section not development the phase．2 pieces of sand body space exhibition layout，according tai 2 section sand is too thick concentrated in the central position in the study area．tai 1 section sand concentration in the lowest position in the study area．Taiyuan group is a layer 2 development sand body development mode to the top of the thin coal seam with thin mudstone layers，thick barrier sand body part development．Another model for the lower development of thick limestone，in upper tidal sand body and thin mudstone interbedding．Taiyuan group is I layer sand body development mode for