Application And Research On New Technology Of Horizontal Well Fracturing Construction In Sulige "Three Low" Oil And Gas Reservoirs

With the continuous development of the oil industry,horizontal wells begin to be widely used in scientific research and actual production,gradually becoming the focus of the theme.Horizontal wells have the advantages of large drainage area,high single well production,high penetration,high utilization of reserves,avoiding obstacles and harsh areas,becoming the one of the main ways in the development and construction of oil and gas field.Sulige gas field is a typically low permeability,low pressure,low abundance of "three low" gas reservoir.After the gas wells perforation,it basically has no natural capacity,so fracturing transformation becomes the inevitable choice of capacity building.Su 53 block as the first horizontal well is the main completion of the development of the block,and badly needs to carry out the targeted research and application about relevant level of fracturing transformation technology for the technical support and supportthe economic of development and production.Based on the analysis of the geological and reservoir characteristics of the Su-53 block in the Sulige gas field,this paper has carried out the horizontal well fracturing process research,including the use of numerical means to carry out the optimization study of fracturing parameters,the optimized liquid system and proppant,the optimization of the parameters of liquid nitrogen and the optimization of the forced discharge and forced discharge.And it carries out a new process of field trials and achieves a better application effect.