Application of Hiway technology in the low permeability reservoirs
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Abstract:
Fracturing is the major stimulation in the low permeability reservoirs,but the conventional fracturing has the problems of short effective fracture and being susceptible to fracturing fluid pollution. In order to increase the effective fracture length,to realize infinite conductivity of the fractures and to improve the success rate and effect,Hiway technology was researched from the aspects of applicable conditions,flow capability experiment of non-continuous proppant laying and method of maintaining the Hiway. The optimized fiber is:length is 10 mm,diameter is 15 μm,mass concentration is 10 kg/m3. The fiber and proppant should be injected together. Independent Hiway technology may be formed. It was applied to two wells in the oilfield with a success rate of 100%. By the end of December 2014,the cumulative incremental oil production is 3 700 t,increased by 15% compared with the oil wells in the same block by conventional fracturing. Compared with the conventional fracturing,Hiway technology has strong adaptability,low construction difficulty and good stimulation effect. It is suitable for the low permeability reservoirs with broad prospects.
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Liu Xiangjun. Application of Hiway technology in the low permeability reservoirs[J]. Petroleum Geology and Recovery Efficiency,2015,22(2):122~126