混合水体积压裂机理及工艺优化

Mechanism and Process Optimization of Mixed Water Volume Fracturing

对于致密低渗储层而言,压裂工艺是改善油气藏开发效果的重要措施之一,体积压裂作为近年来广泛被采用的压裂工艺技术,得到了重视并不断被推广。本文分析了体积压裂增产机理,从具备实施体积压裂的物质基础和储层能量基础两个方面,探讨了体积压裂工艺实施的适应性,并结合近年来现场工艺技术,优化了压裂方式及压裂工艺参数,取得了较好的现场应用效果。

For tight and low permeability reservoirs, fracturing technology is one of the important measures to improve the development effect of oil and gas reservoirs. Volume fracturing, as a widely used fracturing technology in recent years, has attached attention and is continuously promoted. In this paper, the mechanism of volume fracturing stimulation was analyzed, and the adaptability of volume fracturing was discussed from two aspects: the material basis for volume fracturing and the energy basis for reservoir. Combining with the field technology in recent years, the fracturing mode and process parameters were optimized, and good field application results were achieved.