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水平井开采技术已经成为油田挖潜、开发、提高产量的重要措施,在油田开采设计中广泛应用,尤其是针对低渗透油藏,用普通直井很难取得可观的经济效益,而利用水平井开采技术可以获得一定的生产能力。本文在调研了国内外有关水平井产能模型文献的基础上,对稳态产能模型、非稳态产能模型、压裂水平井产能模型、分支水平井产能模型四个方面进行整理总结,从渗流力学基础理论出发建立物理模型和数学模型,并分析了每种模型的影响参数。
Horizontal well mining technology has become an important measure for tapping potential, developing and increasing production in oilfields. It is widely used in oilfield mining design. Especially for low permeability reservoirs, it is difficult to obtain considerable economic benefits with ordinary vertical wells. However, horizontal well mining technology Can get a certain amount of production capacity. Based on the literature of horizontal well productivity model at home and abroad, this paper summarizes four aspects of steady state capacity model, unsteady capacity model, fractured horizontal well productivity model and branch horizontal well productivity model. From the viewpoints of seepage mechanics The basic theory sets out to establish the physical model and the mathematical model, and analyzes the influence parameters of each model.