Oil Water Injection Development Plan Research Of Fanxuan Mafangzhuang-Taoxingzhuang Block In Dingbian Oil Field

FanXue stable peach palm-pp region located in dingbian county territory. DingBianXianfor finalized frontier "meaning", is located in the northwest corner of shaanxi province, themost western end of yulin city. Geographical coordinates in east longitude107°15’-108°22’,latitude36°49’-between37°53’. East into the JingBianXian the province, southern borderwith HuaChiXian, central county, gansu province, west and adjacent yanchi county aims,Inner Mongolia and the north this is bounded, as shanxi, gansu and ningxia, four provincesocean. The county north and south long118km,98km wide, with a total area of6920km2,about3.4%of the total area of the province, the third in shaanxi province.FanXue stable peach palm-pp region are mainly distributed in cross river, is the result ofbaiyu mountain on the west side, for many upstream tributaries of dongchuan. Cross riverwater salinity is more than5000mg/L, for the high mineralization type. Oil is use of surfacewater resources, groundwater resources available, the type of groundwater is mainly for porewater and fissure water and confined water. Luohe local availability of groundwater aquifer isadvisable king group ChiZu pore fissure aquifer pore fissure aquifer and China. This two layergroundwater salinity at around5000mg/L, brackish water, cannot drink.The block is located in the ordos basin near day ring on the edge of the yishan slope beltin western depression DingBianXian, yishan slope is mainly formed in early cretaceous, thesloped gently monoclinic, west Angle only from1to0.5°. A series from the east to the westslope belt development pitching nose-like uplift low amplitude structure, size is differ, upliftaxis2~10km long, wide axis0.5~3.5km, the two wings inclination of0.2~1.2°, upliftamplitude2~10m. The nose-like uplift and delta sand body in the study area organicconfiguration, forming favorable oil and gas enrichment zone. Regional tectonic unit for ordos syncline northern shaanxi monoclinic, Mesozoic sedimentary layers thick, single lithology,lithofacies and stability. The late cretaceous, stratigraphic denudation by varying degrees.Since quaternary early pleistocene, basin continue to slow down, to the late pleistocenesedimentary total more than300meters of native loess strata. The late late pleistocene, underthe influence of Himalayan movement, basin uplift again, modern erosion of loess formationof more intense. The area is a relatively stable block, not affected by severe deformation, rockis still intact. Zone of geological structure is simple, stable deposition, large thickness, and thevast majority of the range of the fault zone compared with the peripheral fault zone is small,therefore, besides some small earthquake, almost no bigger earthquake according to historicalrecords. The ground motion peak acceleration of0.05g or less, corresponding basicearthquake intensity is less than or equal to Ⅵ.