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压裂优化设计的主要参数是无因次采液指数、无因次支撑剂数、无因次裂缝导流能力,弄清它们之间的关系是水力压裂优化设计的关键。经对裂缝优化设计的基本理论进行分析,结合自主研发的OptiStim系统,对水力压裂过程展开了研究分析得知,高渗地层采用压裂增产效果优于低渗地层,使用优质支撑剂、增加支撑剂量能提高压后产量。但为优选出最佳的水力压裂设计方案,需要根据油井具体情况,综合考虑各方面因素。
The main parameters of fracturing optimization design are the dimensionless liquid production index, dimensionless proppant number, and the ability of non-dimensional fractures to guide the water flow. To understand the relationship between them is the key to the optimal design of hydraulic fracturing. Based on the analysis of the basic theory of optimal design of fractures and the self-developed OptiStim system, the hydraulic fracturing process has been studied and analyzed. It is concluded that the fracturing stimulation in high-permeability strata is better than that in low-permeability strata, the use of high-quality proppant increases Bracing doses increase post-press production. However, in order to optimize the optimal hydraulic fracturing design scheme, various factors need to be considered according to the specific conditions of the well.