摘要
Abstract
In order to improve the gas reservoir recovery efficiency, as to achieve the economic benefits of low investment and high profit, this paper takes block S as an example to investigate a feasible well spacing selection method according to its sandstone characteristics and on the basis of rectangle well pattern. Four methods, namely, methods based on economic evaluation, reasonable gas extraction velocity, permeability & discharge radius, and numerical simulation evaluation, are adopted respectively for comparison and analysis. Results from these methods show that, an 800 m well spacing should be chosen for irregular well pattern. Well spacings of 500 m ~ 600 m, and 600 m ~ 800 m are appropriate for positions of bad and good reservoir properties, respectively. This study provides theoretical guidance to the high efficiency production in the gas enrichment region.关键词
合理井距/经济评价法/合理采气速度法/数值模拟论证法Key words
Feasible Well Spacing/Economic Evaluation Method/Reasonable Gas Extraction Velocity Method/Numerical Simulation Evaluation Method分类
能源科技
