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Research On Reservoir Heterogeneity Affecting On The Distribution Of Remaining Oil

Posted on:2011-06-28Degree:MasterType:Thesis
Country:ChinaCandidate:S LiFull Text:PDF
GTID:2180360302492757Subject:Oil and gas field development project
Abstract/Summary:PDF Full Text Request
The multilayer oil fields with continental sedimentation are the main features of oil fields in China. Sometimes the reservoir heterogeneity in horizon and vertical is very serious Due to the different characteristics of deposits, which creates a large number of remaining oil in the reservoir. Research on the reservoir heterogeneity is one of the most important work in the oilfield development .The characteristics of reservoir determine the oil bearing of reservoir. For water injection well oil field , understanding how reservoir heterogeneity affect the remaining oil is important in the science and production.Based on the actual data of Cha31 of Cha he ji oilfield ,evaluate its reservoir heterogeneity, and calculate the remaining oil distribution , find the relationship between the reservoir heterogeneity and the distribution of remaining oil , so as to come to reservoir heterogeneity how to influence and control the distribution of remaining oil, for better provide the basis for the oilfield development. The main results obtained are as follows:1、Evaluate and analysis the structural features, reservoir sedimentation, reservoir characteristic, sensitivity, reservoir type, and natural energy.2、Heterogeneity of the reservoir has been studied,especially the concept of heterogeneity and characterizeation methods,qualitative and quantitative analysis the reservoir surface heterogeneity, the middle of layer heterogeneity, the inside of layer heterogeneity, micro- heterogeneity.3、Studied the remaining oil and its influencing factors. Trough analyzing the production profiles and water absorption profiles of the block, to research the distribution of remaining oil , and through the injection profile and production profile of the vertical distribution of residual oil was studied, proposed factors affecting the distribution of remaining oil, tapping the potential to provide the basis for the next step.4、Trough calculating the heterogeneity index and establishing the conceptual model, getting heterogeneity and distribution of remaining oil together to research , finding the relationship between the reservoir heterogeneity and the distribution of remaining oil, so as to come to reservoir heterogeneity how to influence and control the distribution of remaining oil. Methods associated with the gray distribution of remaining oil on the affecting factors of the sort.5、Based on understanding reservoir heterogeneity how to influence and control the distribution of remaining oil. Advising a method to future trapping the potential, and adapt to the heterogeneity of remaining oil in tapping the potential program.
Keywords/Search Tags:heterogeneity, remaining oil, tapping, Chaheji oilfield
PDF Full Text Request
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