Comparison Study of Fracturing Fluid System Applied in Fracture Network——Biyang Pit Nanxiang Basin Shaly Oil-Gas Reservoir

This paper analyzes the fracturing fluid system,including quick water,GW-27 linear gum and HPG linear gum which are often used in network fracturing shaly oil-gas reservoir in terms of the choice,the formulation and the mechanism,field application(the sand volume,friction grads,the compound fracturing fluid system,minimum friction grads thickener concentration).The application effect in Biyang pit Nanxiang basin shaly oil-gas reservoir ensures that the friction grads big-endian order and compound,ratio,and finds out its sphere application.The BYHF1 well was network fractured applying the technology,so the reservoir was improved,and the increase of oil is significant.