水力压裂裂缝导流能力的影响因素分析

Analysis of Factors Affecting the Hydraulic Fracture Conductivity

水力压裂是油气井增产、注水井增注的一项重要的技术措施,其目的是提供一条连通地层与井筒的高导流能力通道,改变地层流体的渗流方式,提高生产指数。裂缝导流能力是指支撑裂缝所能提供液体流动的能力的大小,而影响裂缝导流能力大小的因素可归结为:储层条件、支撑剂物理性质、压裂工艺水平和压后生产管理这四个方面,并对这些因素进行了分析。

The hydraulic fracturing is an important technical measure for the stimulation of oil and gas wells and injection wells, which aims to provide a high connectivity channel between wellbore and formation for changing the fluids flow methods in formation to improve the production index. The fracture conductivity is how much liquid flow capacity can be provided by cracks. The influencing factors of the fracture conductivity can be summarized as follows： reservoir conditions, physical properties of proppants, fracturing process and post- press production management level. In this article, above four influencing factors were analyzed.