Study On Sedimentary Microfacies Of Xingouzui In Mawangmiao Area Of Jianghan Basin

Mawangmiao oilfield areas of new groove mouth petroleum geological condition issuperior, the remaining oil resources is richer, still has large potential for exploration. In orderto deepen the oil and gas exploration of the fine, we must deepen understanding of thesedimentary microfacies within the scope of study area, the further study of sedimentarymicrofacies, thereby better evaluation exploration potential in the region, the optimumfavorable exploration targets, effectively guide the oil and gas exploration work.Papers to the basin analysis, modern structural geology, sequence stratigraphy theory asthe guide, the integrated use of drilling, well logging and seismic, geological and analysistests material, making full use of tectonic paleogeomorphology analysis, sedimentarymicrofacies identification, composite phased sand body were briefly introduced prediction onthe technology in the studied area geological characteristics after that first through the coreand logging, well logging data, it summarizes the comprehensive analysis of the potentialmawangmiao oilfield areas and cretaceous paleogene department and neogene sedimentaryfacies of mark, mainly including petrology marks, sedimentary structure symbol and loggingmark; In sedimentary facies marks the basis of single well sedimentary facies, throughcomprehensive bar chart, even well made and sections of research work, and research in the21st mouth drilling Wells profile of sedimentary facies even analytical and comprehensiveanalysis on earthquake phase; Using the sedimentary facies analysis results of the study area,the types of sedimentary facies division.Studies suggest that in the delta and lakes main development of two kinds of sedimentaryfacies. Delta facies can differentiate for delta front and former delta two and phase and deltadistributary channel, between tributary wan, debouch bar, mat shape sand, former delta mud five microfacies; Lakes phase can be divided into the littoral and shallow lake, half a deeplake two and phase and littoral and shallow lake beach and sand, sand dam, mudflats, mudanointed beach, half a deep lake mud five microfacies; Study area along the maindevelopment faulted the edge to the center of basin the provenance of the supply of thedirection the delta depositional systems-lakes.