HEGF is an oil/gas well stimulation technology by means of propellant inflamming in wells to produce multiple radial fractures in formation and hence to enhance the well production. The paper summarizes the achievements of our effort on research and application of the technology. For understanding the HEGF mechanism, laboratory and field experiments are conducted and numerical simulators are studied. The treatment design method and implementation techniques are discussed. A design software, which includes the content of propellant burn, perforation, stemming liquid motion, fracture propagation, fluid flow in fracture, and production increase prediction etc., has been developed to serve as the basis of the design, optimization, and control of the technology. The application of the technology to exploratory, production and injection wells shows its great prospects in oil and gas industry.

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