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高能气体压裂 (HEGF)技术是近几年发展起来的一种新型增产技术。本文简述了其原理 ,并从中原油田生产实际出发 ,根据其油藏埋藏深、地层渗透性差的特点 ,在固体火药高能气体压裂应用的基础上 ,开发研制了系列液体火药 ,介绍了液体火药的作用机理 ,液体火药配方研究、种类 ,液体火药的优点 ,以及选井原则和施工工艺。通过 1997年和 1999年在 16口井推广应用 ,工艺成功率达 10 0 %。截至 1999年 12月底 ,已累积增油 6650t ,取得了较好的经济效果。实践证明 ,液体火药高能气体压裂技术可大幅度提高深层油气藏的HEGF措施效果 ,改善深层低渗油气藏的开发状况 ,具有广阔的应用前景。
High-energy gas fracturing (HEGF) technology is a new type of stimulation technology developed in recent years. Based on the fact that the oil reservoir is buried deeply and the formation permeability is poor, based on the application of high-energy gas fracturing of solid gunpowder, a series of liquid propellants have been developed. The liquid The mechanism of action of gunpowder, the study of liquid gunpowder formulations, the merits of liquid gunpowder, the principle of well selection and construction technology. Through the promotion and application of 16 wells in 1997 and 1999, the process success rate reached 100%. As of the end of December 1999, 6650 tons of oil have been accumulated and achieved good economic results. Practice has proved that the liquid gunpowder high-energy gas fracturing technology can significantly improve the effect of HEGF measures in deep reservoirs and improve the development of deep-lying low permeability reservoirs, which has broad application prospects.