Hydrocarbon Accumulation Conditions Of Nantun Member In Northern Area Of Beixi Slop

In this paper,a combination of the sedimentology, structural geology, petroleum geology and other theories as the guide, geological, geophysical logging and otherinformation for a comprehensive study of ways, in-depth studies in the slope of the reservoir and cover spatial and temporal distribution laws, focused on oil and gas source rocks and reservoirs of oil and gas persuasion, and the capping reservoir characteristics of the reservoir formation control, ptimization favorable oil and gas exploration zone, implementation evaluation favorable exploration targets in the future the area of oil and gas exploration and Development has an important reference value.Bell Depression main hydrocarbon source rocks in the main longitudinal group and the Nam Theun Damoguaihe section dark shale development, the evolution of organic matter also relatively full, from the Bell's Depression-quality crude oil analysis results contrast, the tectonic Spacey slopes with the oil and Bell Depression with homology, Behcet depression is one of the trough should be the main source rocks, oil and gas can be directly along the fault, sand or respiratory migration and integration for Connaught-structure, and Su Nour is in the transport of the belt, poly.Spacey on the slopes in Nantun group reservoir parameters on the evaluation of the reservoir evaluation that class, distribution in reservoir porosity and permeability better and favourable oil and gas accumulation zones of the region, South Sec reservoirs better conditions on the South section of a reservoir extension of the overall slope to the reservoir Depression gradually good trend, the section of the Southern Sec mudstone caprock shale cover is a good cover regional and local cover, blocks the ability of oil and gas than Strong, Nantun group in the reservoir of oil and gas accumulation and preservation are more favourable.The trap has been found concentrated in the vicinity of the main fault and fracture direction consistent with the main extension to the North NEE distribution. Local constructed to block broken nose and mainly, with a structure and lithology lithologic trap trap. By Behcet slope-forming conditions in the overall study, from this point of view a few Good reservoir formation of the basic conditions. Therefore, the availability and effectiveness of traps how is the most important reservoir control factors.