Ansai Oilfield Chang6Reservoir Fracturing Fluid Properties

Ansai Oilfield As low permeability and low reservoir conditions, natural oil productioncapacity is very low, are required to be obtained by fracturing industrial oil flow. But in theoverall field development on the use of fracturing, resulting in oil wells will be put into acertain degree of damage, the impact of the play to their maximum potential. With thedevelopment of oil into a large area of water, due to a variety of external factors and internalfactors, some wells showed significant blockage: high static pressure, low flow pressure, skinfactor increases, the decline in oil production, injection wells water absorption capacitydecreased, Note or Notes do not carry enough to increase the number of wells.This study analyzes Ansai Oilfield long six reservoir rock mineral composition, content,pore structure, petrophysical, heterogeneity, fluid properties, reservoir sensitivity and relativepermeability characteristics, deepen the study of reservoir characteristics and understanding offlow characteristics; utilize static and dynamic means, through laboratory experiments forfracturing fluid system performance evaluation, to arrive at the influencing factors for theformation damage and propose optimization and improvements; combined Ansai OilfieldWangyao, apricot River and designate City and other old reservoir characteristics, to carry outchanges in relative permeability fracturing fluid indoor coreflood experimental analysis of thefracturing fluid to the reservoir and conduct impact evaluation of effects of optimization, andfinally put forward suggestions for improvement.