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Distribution Of Sedimentary Facies And Prediction Of Favorable Reservoir Area Of Dongying Formation In W Area

Posted on:2017-04-19Degree:MasterType:Thesis
Country:ChinaCandidate:X X ZhuFull Text:PDF
GTID:2180330488460423Subject:Geological engineering
Abstract/Summary:PDF Full Text Request
W District is still in the early stages of exploration, 3D seismic covering the whole region, despite the lower degree of exploration in the area, but the broad prospect for exploration, in order to reduce the risk of exploration in this area and achieved a breakthrough, application existing data carried out the sedimentary facies distribution and storage layer favorable area prediction research.According to the principle of sequence stratigraphy, drawing on previous of LD Bay sequence stratigraphic classification scheme, in the w sequence stratigraphic framework is established based on the, on the Paleogene divided into six third-order sequences: SQs4- SQk, SQs3, SQs1+2, SQd3, SQd2, SQd1. Seismic facies recognition and all kinds of seismic facies study, on the basis of sedimentary facies types and distribution rules of the study, the deposition period of Dongying Formation and development types of sedimentary facies are mainly fan delta, braided river delta, meandering river delta and lake in the SQd sequence group and fan delta mainly developed in the LX sag fault step belt, braided river delta development LX sag in western slope, LZ sag in the west slope, deep lake area mainly developed in LX sag and southern parts of the deep depression. And in in the favorable sedimentary facies belt. Application of seismic attributes and seismic inversion technology to predict the west slope of sag LX and LX sag Eastern steep slope belt, LZ sag in north slope, LZ sag strike slip fault belt is the favorable reservoir development area in the west slope and LZ sag. The study was carried out for the next exploration target optimization and provide the basis to reduce the risk of exploration in this area.
Keywords/Search Tags:seismic facies, sedimentary facies, seismic attribute analysis technique, seismic inversion technique
PDF Full Text Request
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