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Reservoir Earthquake Prediction In Longhupao Region Putaohua Oil Reservoir

Posted on:2017-03-23Degree:MasterType:Thesis
Country:ChinaCandidate:Y LiuFull Text:PDF
GTID:2180330488955318Subject:Earth Exploration and Information Technology
Abstract/Summary:PDF Full Text Request
In this report, Based on the correlation theory in sequence stratigraphy, structural geology, seismic inversion, seismic attributes and reservoir prediction as the foundation,through comprehensive analysis and utilize the drilling, logging, seismic and other data in Longhupao region Putaohua reservoir, established the sequence stratigraphic framework, after deeply analysis to know the regional structural feature and combined with seismic attribute and seismic inversion in Putaohua oil layer in reservoir characteristics research, thus to finish reservoir prediction.Sand body in Putaohua reservoir Longhupao region has the characteristics of thin thickness, low sand layer radio. At the same time affected by sedimentation, sand body in the plane mainly show as strip or dot, lead to difficult reservoir prediction.In this paper, based on the seismic, logging, testing and core data, firstly we establish sequence stratigraphic framework in Putaohua reservoir Longhupao region.On the basis of the sequence, we carried out seismic structure interpretation, then getted the structural maps, comprehensive analysis the structural characteristics of objective layer.On the basis of study tectonic characteristics, reservoir characteristics purpose layer,starting putaohua reservoir inversion predicting. The inversion work based on well data preprocessing, the logging curve sensitivity analysis and feasibility of inversion analysis,finally using geostatistical inversion method to predict the characteristic of sand body distribution.From the study of conventional seismic attributes, dessert, frequency division attribute in putaohua oil, at the same time combined with the attribute getting from seismic inversion making a comprehensive analysis of the optimization.Provide the earthquake information support for the characterization of sedimentary facies, and combining with the sedimentary facies of logging information to complete the objective layer features work.Comprehensive using the idea of the well seismic joint, according to the laws background of sand body distribution and based on the inversion data, in view of the characteristics of single sand body distribution mainly study, at the same time, the results of fitting data for the selection of threshold method, for the inversion data volume filter and sand body sculpture, then extract slice of filtered inversion body, and validated by drilling data,finally complete the small layer characterization of single sand body, and on this basis, using the thinking of contour tracing, to complete the study area distribution of single sand bodythickness and regularities of distribution in the whole research and complete favorable area prediction.
Keywords/Search Tags:structural interpretation, seismic inversion, seismic attributes, reservoir prediction
PDF Full Text Request
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