Research On Application Of Seismic Reservoir Prediction Technology In MHS Area

In this paper,a large number of domestic and foreign research of fine structure interpretation and seismic reservoir prediction under the background,according to the actual situation of the study area,on the basis of previous research and improvement of comprehensive,joint interpretation of 3D seismic data in North West MHS block,mainly of Triassic Yanchang Formation and structural interpretation reservoir prediction.MHS West Block 3d area after the exploration and development in recent years,the preliminary understanding to the control of oil and gas in this area as the main controlling factors of reservoir has two,one is the low amplitude structure and lithology or lithology oil,two is communicated with the sealing of fault,and the fault sealing connection plays a decisive role in this area oil and gas accumulation.This text is divided into seven chapters:the first chapter mainly reviews the background and the research purpose and significance of this thesis,the domestic and foreign seismic reservoir prediction technology research status and development trend are analyzed;the second chapter of the thesis research contents,ideas and achievements were introduced,including the oil and gas research results,geological conditions,data interpretation and quality index of technical requirements,research contents,ideas and solutions;the third chapter mainly introduces the regional geological conditions in the region of MHS,from the geographical location,the characteristics of tectonic evolution and regional stratigraphic characteristics,reservoir reservoir conditions and so on many dimensions are elaborated;the fourth chapter mainly introduces the basic research on the seismic interpretation,acquisition and processing of seismic data,analyze seismic profiles,seismic sequence and reflection wave group A comprehensive calibration of the division and its geological attributes;the fifth chapter introduces the details of the fine structure interpretation,including fault interpretation,horizon interpretation,tectonic division analysis,sedimentary characteristics analysis and so on;the sixth chapter of the purpose layer reservoir lateral prediction of reservoir interpretation,mainly from the qualitative forecast and quantitative forecast of reservoir two clarify;the seventh chapter is the conclusion,a comprehensive review of the related research results,the completion of paper and puts forward some suggestions for the research.The main achievements of this paper are as follows:(1)In this paper,the geological attributes of the main seismic reflection waves on the seismic profiles are clarified by the synthetic records and the calibration techniques of the layers in the research area.(2)In-depth study of the fracture in the study area.According to the scale of the fracture and the length of the space extension,combined with the location of the regional fracture distribution,the fault is divided into two levels:two level and three level.(3)The factors that control the structural pattern of the work area are discussed.It is considered that the northern part of the work area is mainly affected by the northwestern or NNW SSE westward thrust nappe system.The southern part of the work area is mainly affected by the northwestern or NNE SSW westward and eastward thrust nappe system.(4)Through the wave classification technology,seismic attribute extraction and optimization technology and seismic inversion technology,we preliminarily predict the spatial distribution of main target segments,and comprehensively evaluate the main purpose segments by using structural interpretation and reservoir prediction results.