煤层气径向井技术实践及排采数据分析

Pratice of Radial Horizontal Well Technology in Coalbed Methane Well and Analysis of Production Date

通过介绍径向井技术引导某煤层气井压裂施工的过程,分析暴露的问题,认为该技术能在一定程度上起到引导作用,但也需在孔径及孔数、煤粉返排、压损等方面做进一步完善。在后期排采过程中,通过汇总分析该井的排采参数,认为流压和产气量之间并非简单的线性关系,而是存在"拐点"现象。

According to introduction to the practice of radial horizontal well guided hydraulic fracturing, and analysis on its faultiness, it showed that the technology could play a guiding role in fracturing, but further research and improvement should be carried on in the aspects of aperture, holes number, coal powder flow back, loss of pressure and so on. It also suggested that it is not a simple linear relationship between the bottom hole pressure and gas production via meta-analysis of the production date in the latter process. There is a ＂turning point＂ between them.