Study And Application Of Fracturing Technology In Buried Hill Reservoir Of Metamorphic Rock

Xing buried hill exploration project of Liaohe oil field is one of the major achievements in recent years,fracturing measures play an important role in the exploration and development of oilfield.Due to the particularity of buried hill reservoir,the development of the target layer is mainly archean metamorphic rocks,lithology,buried depth,high temperature,dense rock,low permeability,there often the sand blocking phenomenon prepad stage fracturing sand smooth but when in the early course of reservoir fracturing,caused great difficulties of fracturing construction,experience at home and abroad is almost a blank in this aspect,through scientific and technological personnel of Liaohe technical research,the success rate of continuous improvement in buried hill rock fracturing the main idea of making a long slit,the additives of fracturing fluid: thickening agent,crosslinking agent,demulsification cleanup agent,pH regulator and clay stabilizer in deep metamorphic rocks reservoir Study on the adaptability of experimental layer under the condition of selected additives,according to the study of temperature field,finally developed high temperature resistant shear fracturing fluid formulation,using perforating obstacle shooting technique,variable displacement technology,integrated control technology for seam high buried hill metamorphic fracturing construction,and achieved good results.