Development Plan Of Lnjection In Chang2Block, Zhongshanchuan Oilfield

Wayaobao ZhongShanChuan oil field located in the ZiChang County, Shaanxi Province,ZhongShanChuan oil field YanChang group located in AnSai-ZiChang Delta, Chang6is theculmination of the Delta building, The Chang4+5large-scale marsh plain long period,2further Lake atrophy, delta plain. Reservoir has the characteristics of low porosity and lowpermeability, low oil saturation, the larger exploration and development difficult.Study area islocated in the Ordos Basin Wayaobao oil, low permeability reservoir, formation of low energy,mining difficult. The state of oil demand increased year by year, theproduction has becomeincreasingly difficult task, in order to improve oil well production and reservoir recovery, Bianrefineries in recent years implemented waterflood development, supplemented by artificialformation energy to improve the production rate and recovery Currently, the majority of OrdosBasin for low permeability reservoirs for the special low permeability reservoirs, suchreservoir properties mainly poor, well production is low,diminishing fast, natural energy islimited, Pore Types and diagenesis complicated, how reasonable effective exploitation of suchreservoirs, is the key to achieving sustainabe development of the oil fields.In this paper, Chang2oil reservoir in the mountains as the research object, using sedimentary petrology, petroleumgeology theory, water district deployment plan, design drilling oil production. Finally, aperfect formation pressure oil wells sentinel surveillance systems, water wells movementdistrict level monitoring system, oil water content sentinel surveillance program. Basicgeological characteristics and status of development of technical research at home and abroadfor low-permeability reservoirs, as well as the basic characteristics of long two lowpermeability reservoirs, reservoir characteristics were a long two studies describe the reservoirstructural characteristics, sedimentary microfacies sand body distribution, petrologicalcharacteristics, cracks, pore structure characteristics and heterogeneity characteristics. On thereservoir characteristics of the study area were analyzed reservoir pressure, temperature, type,sand thickness analysis, a comprehensive evaluation of the reserves. For current production inthe form of the well region analysis and evaluation, classification and portfolio developmentstrata, deployment development programs, and to determine the boundaries of reasonablepressure water injection, water flooding evaluate the degree of control and waterflood results, carried out a series of dynamic prediction scheme water district evaluation of the effect ofwaterflooding.