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The Study on Sedimentary Microfacies and Prediction of Favorable Reservoir Zones of Yingcheng Formation in Shiwu Oil-field of Songliao Basin

Author: HuMingLiang
Tutor: ChengRiHui
School: Jilin University
Course: Mineral prospecting and exploration
Keywords: Shiwu oilfield Of Yingcheng Sedimentary microfacies Depositional systems Favorable reservoir facies
CLC: P588.2
Type: Master's thesis
Year: 2010
Downloads: 170
Quote: 1
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Abstract


Means to be divided 58 single well sequence stratigraphy of the study area , and seismic sequence continued age Shiwu oilfield of Yingcheng ( including Sand the Ⅰ Sand group ) is divided into five third-order sequences . In the Fine Description core of 31 wells in the field , on the basis of the observational study of a large number of rock flakes , Shiwu oilfield of Yingcheng deposition phase is divided into four categories -phase , of five kinds subfacies 14 microfacies , combined containing the sand ratio diagram , sand body the cumulative thickness map as well as three - dimensional seismic attributes slices to determine of Yingcheng sand (including sand ⅰ group ) the five sand group advantage sedimentary microfacies, show advantage sedimentary microfacies plane distribution characteristics . Analysis research area of sand land than distribution characteristics and particle size distribution characteristics of statistical research area of rock types , to determine the study area of Yingcheng development of the deposition system have : northern (fan) delta deposition system , eastern fan delta deposition system , southern fan delta depositional system , the the southwest delta depositional system , northwest delta depositional system , underwater fan has a mixture of source characteristics . The Xiaokuan fault system of distribution of sedimentary facies and played a transformation of the role . Camp the Ⅲ sand group and Camp V ( sand Ⅰ) sand group division and correlation of the small layer , on this basis , the analysis of the main reservoir sedimentary microfacies and distribution of depositional systems . Research Yingcheng oil and gas shows and oil and gas shows the thickness of the sand body statistics obtained favorable reservoir facies Delta, followed by the the underwater fan and fan delta , alluvial fans worst . The most favorable reservoir rocks of the estuaries of the delta front bar and underwater channel sandstone , underwater fan sandstone , mouth bar sandstone fan delta front , delta-front estuaries dam and underwater channel sandstone most advantages .

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CLC: > Astronomy,Earth Sciences > Geology > Petrology > Classification of rocks > Sedimentary rocks
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