In view of the recognition difficult of the petroleum in in E31、E32、N22 reservoirs in the Qigequan Field, Chaidamu Basin, based on a great quantity of production information, according to the different lithology ,confirmed the recognition criteria of oil layer in different reservoirs by using the convergence between ILd and AC .
Based on the analysis of characteristics of deepwater,the impacts of formation lithology,surface property,property of casing wall and property of cement slurry on the interface intensity were investigated using the self developed tool measuring the interface shear cement intensity.
The Study of Sequence Stratigraphy, Lithologic Hydrocarbon Reservoir Discrimination and Evaluation of Jurassic System in Block Ⅰ in the Backland of Junggar Basin
Based on the analysis on the lithological reservoir of Dongying sag, physical simulation experiments on controlling the forming of lithological sandbody were conducted with hydrocarbon migration and accumulation simulation facilities.
Because of the poor lithological character of the reservoir,the loose cementation and the special fluid nature and the extraction manner,the total region has experienced sanding in in 2000,which in turn caused 1300 sand exclusion maintenance.
1. In the wave impedance cannot the effective discrimination reservoir and in the adjacent formation difficult situation,Established this local lithological character, the nature, contained the disposition and the elastic parameter relationship,And explicitly pointed out,The poisson's ratio is the effective parameter which the distinction contains was mad,In hole fluid type control poisson's ratio.
But structures are involute, distribution of lithological character has no rule and volcanic reservoir has heterogeneous feature, so knowledge to volcanic reservoir is low and the exploitation work for this reservoir faces great difficulty.
2 ) Volcanic lithological character is involute. Owing to the influence of volcanic formation fashion and structure, distribution of lithology has obvious rule either in portrait or in landscape.
As the conclusions follow:First, the Upper Paleozoic reservoir mainly is in Shihezi formation and Shanxi formation, Shihezi formation lithological character mainly for debris quartz sandstone, contains the few pebble.
There are 61 major peraluminous granitic bodies in Tibet (TPGs) along the south of the Bangong Co-Gêrzê-Amdo-Nujiang suture, whose lithology includes tourmaline granite, muscovite granite and two-mica granite.
This paper introduces the geological background, mineral association, and lithology of the exhalative rock, and discusses its REE geochemical characteristics and connection with hydrothermal environment.
It considers lithology, structure, faunal assemblages, and formation settings of carbonate layers with Virgulinellaremains (VirgunellaBed) at the base of the Upper Oligocene clayey sequence that represents the well-expressed marker horizon.
The observed variations in the density of radioactive contamination are associated with nonuniform lithologic composition of soil-forming rocks and also with different duration of the flooding periods.
The data on the lithologic composition of the Kaidun meteorite give strong arguments for considering the meteorite's parent body to be a carbonaceous chondrite satellite of a large differentiated planet.
The problems regarding the mechanism and lithologic-hydrogeochemical consequences of the density-driven convection in the subsurface hydrosphere in a sedimentary basin are considered.
As an independent lithological body, the mechanical property of a reef flat is very different from the surrounding rock, causing stress to concentrate.
The lithological character of the cycles, combined with power spectral and wavelet analysis of magnetic susceptibility readings, reveals 12 short eccentricity and 56 precession Milankovitch cycles — obliquity cycles are not apparent.
The closer the rocks are to the Maokou Formation cherts, the more they contain selenium, but in case the stratigraphic horizons are close to one another, the enrichment of selenium would be controlled by lithological character.
It has been concluded that the lithological character of starting materials and the chemical behavior of reaction products are important controlling factors in analcimization.
Based on the data processing and field mapping, the geological formations encountered in the foundation materials of the city were divided into individual geotechnical units according to uniformity in lithological character and relevant age.