Horizontal well multi-stage fracturing reconstruction is currently the main method for unconventional oil and gas reservoir development in China,including tight oil and gas and shale oil and gas reservoirs.The application of carbon quantum dot tracer production profile testing technology is carried out simultaneously with the fracturing operation.Liquid production profile testing can provide information on the backflow conditions of fracturing fluids in each interval after fracturing,the liquid production profile during the oil viewing period,and the production contribution of each stage during the production period.This information guides subsequent enhanced oil recovery measures such as profile control and interval mining,evaluates the effectiveness of fracturing,selects appropriate fracturing fluids,optimizes the fracturing scale,thereby reducing fracturing costs and increasing oil and gas recovery rates.This testing technology has certain guiding significance for the horizontal segmentation reconstruction of low-permeability and low-porosity oil and gas reservoirs.
维普
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