The Research and Application of Oil Permeates and Water Resistance Artificial Shaft Wall Sand Control Technology

High water cut sand wells in loose sandstone reservoirs greatly affect the development benefits of oil fields. Conventional sand control technology only has the function of sand control, but cannot solve the problem of high water cut. In this paper, a kind of calcium aluminate precipitation particle which can permeate oil and inhibit water was developed (particle size of 0.3 ~ 0.5 mm, 0.5 ~ 0.7 mm and 0.7 ~ 1.4 mm). The consolidation temperature is 30 ~ 80 ℃, the compressive strength is 3 ~ 5MPa, and the liquid permeability is 0.3 ~ 0.8 μm2. With core function of the material, combined with mechanical sand control, the oil permeates and water resistance artificial shaft wall sand control technology was formed. It can effectively reduce the water cut of the produced liquid and improve the development benefit of the high water well. This technology has been successfully implemented in more than 50 Wells in Dagang Oilfield, and the success rate of sand control construction is 100%. The cumulative recovery of oil production is 32,856 tons, and the cumulative increase of oil is 14,652 tons. The average water cut of the produced liquid in sand control Wells is reduced by 11.2 percentage points, and good sand control effect has been achieved.