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Now 100 Of River Cattle Es3 Depositional Systems And Reservoir Characteristics Of Study

Posted on:2008-11-26Degree:MasterType:Thesis
Country:ChinaCandidate:X H MaFull Text:PDF
GTID:2190360215485855Subject:Geological Engineering
Abstract/Summary:PDF Full Text Request
On the basis of sequence stratigraphy analysis of single well, we made sectional contrast by combining earthquake data, utilizing drilling and logging data. Through tracing time units such as sequence border, parasequence sets and parasequence, we finished high-resolution ratio sequence stratigraphy study sand delta turbid to accumulate sand body the developments of in slump in foreordained affinity of three sections the third on river oil recovery factory Study after carrying on 100 ox area. the third member of Shahejie formation of Early Tertiary. Firstly, by using high-resolution ratio sequence stratigraphy principle and method, set up high-resolution chronoframework, provided effective restrain for the study of depositional system and the law of hiding oil and gas in this district. Secondly, according to the sign of sedimentology, earthquake facies and logging facies, we studied sedimentology characteristic on delta foreordained affinity slump turbid to accumulate sand body in this district, set up interval array and deposition mode. Finally, on the basis of core describing, thin slice observes, mercury pressing test, turbid sedimentary characteristics of accumulating slump sandbody has carried on deeply systematic analysis and research. The result of study indicated that single accumulating slump sandbody doesn't has uniform size, single sand body thickness generally smaller than 20m, generally distributed on the deep lake of foreordained affinity of delta-half deep lake area, present the clitellum's form and distribute around the foreordained delta affinity.the development scale of accumulating slump sandbody is limited by the delta scale and hydrodynamic condition(in the influence of stronger hydrodynamic pressure and higher delta progradation, slump turbidity sandbody thickness heavy, taking the form of fan in wide area. On the contrary, may form little lens sandbody). Turbidity sandbody's quantity is large, but distribute unbalanced, it developed more in east than western at level in work area, more in north than south.
Keywords/Search Tags:sequence, reservoir, sedimentary facies, reservoir physical property characteristics
PDF Full Text Request
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