Research And Application Of Increasing Production In Glad Ridge

Located in the west sag rejoice ridge oil region south west slope, from down to up the buried hill, promotion and development DuGuTai, lotus flower, DaLingHe, the jehol platform, is thriving platform, in building, dongying and GuanTao ten sets of hydrocarbon reservoir. After long-term development, with low reservoir permeability, residual oil distribution discontinuous, crude oil viscosity etc. Characteristics. During development, formation damage to foreign fluid reservoir permeability, is down, appear crude oil output, high production costs low. Therefore, using acidizing technique improve stratum condition, improve, improve oil Wells formation permeability of production capacity, mining old oil field production potential, is the low inefficient oilfield stimulation measures main research direction.According to the geological characteristics of gladness ridge oil region, analyzed the reason formation plug, both through common acidification of the acid system of sandstone reservoir mechanism analysis, acidification are studied, according to the site conditions and strata last request developed a new type of oil displacement system, and the system performance evaluation and field test of indoor. Indoor test results show that the flooding has slow-release and strong penetration agents to far ability, acidity wellbore dissolve plugging; Can effectively prevent corrosion particles migration jams formation; Can effectively restrain hydrogen ferric oxide, aluminum hydroxide, hydrogen ferrous oxide precipitation generation, and at the same time in low pH value condition, reduce GaoFu complex ion concentration of potassium silicate, slow fluorine, fluorine sodium silicate, fluorinated aluminum second precipitation generation; Have certain wash oil ability. Field test effective rate 100%.