裂缝有效渗透率影响因素的分析计算

Analysis and Calculation of Influence Factors of Effective Permeability of Fracture

水力压裂已成为低渗储层开发重要技术手段,通过压裂产生的人工裂缝有效的改善储层的渗流能力,进而实现增储上产的目的。目前压裂工艺已被广泛的应用于低渗储层的开发中,但对于压裂所产生人工裂缝的有效渗透率计算及分析仍然需要进一步研究。本文分析了影响人工裂缝有效渗透率的相关因素,利用迭代法推导了有效渗透率计算公式,为水力压裂效果评价提供借鉴。

The hydraulic fracttLring process has become an important technical means for the development of low permeability reservoirs. The artificial fractures produced by fracturing process can effectively improve the seepage ability of the reservoir, and then the purpose of increasing the storage and production can be achieved. At present, the fracturing technology has been widely used in the development of low permeability reservoirs, but the calculation and analysis of the effective permeability of artificial fractures produced by fracturing still need fia＇ther study. In this paper, the relevant factors affecting the effective permeability of artificial fractures were analyzed, and the calculation formula of effective permeability was derived by using the iterative method, which could provide some reference for the evaluation of hydraulic fracturing effect.