Study on Sedimentary Facies and Reservoir Characteristics of Paleogene Sandstone in Yingmaili Block, Tarim Basin
نویسندگان
چکیده
Block Yingmai 7 is structurally located in the western segment of southern margin Kuqa Depression Tarim Basin. In foreland basin, huge continental Mesozoic and Cenozoic strata have been deposited. recent years, Paleogene bottom sandstone section has main oil gas exploration horizon. order to further improve effect study area accuracy reservoir prediction, based on related theory sedimentology petrology, this paper analyzes studies cores obtained by drilling through laboratory core analysis experiments. The shows that a braided river delta sedimentary system, microfacies are mainly underwater distributary channels. type light gray lithic feldspar fine sandstone, debris particle sorting degree medium-good, roundness sub-edge-sub-circular. microscopic characteristics large pore throat radius, low displacement pressure, intergranular pores, good connectivity. It thin-layered mesoporous, medium-permeable, large-throat, strongly heterogeneous reservoir. Finally, classification evaluation table reservoirs block established, it considered types I II enriched areas resources. research results provide evidence for prediction reservoirs.
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ژورنال
عنوان ژورنال: Geofluids
سال: 2022
ISSN: ['1468-8115', '1468-8123']
DOI: https://doi.org/10.1155/2022/1445395