煤层气井注入/压降试井测评分析

煤层气井注入 /压降试井关井压降数据的双对数曲线形态常会出现变异。如何分析这种变异 ,是决定试井解释结果是否准确可靠的关键。本文通过对现场施工记录及测试资料的综合分析 ,提出了一种从工艺角度评价煤层气注入 /压降试井资料的分析方法 ,即“测评分析方法”。应用此方法 ,可查明曲线变异的原因 ,确保试井解释结果的可靠性与准确性 ,为今后的测试施工及资料解释提出了指导性建议

Evaluation and Analysis of Injection/Draw-down Well Testing in Coal Bed Gas Wells.

The log log curve of shut in draw down data in injection/draw down well testing of coal bed gas wells often appears shape deformation. How to analyze such deformation is the key problem to determine if the well testing interpretation results are accurate and reliable. Through comprehensive analysis of field operation record and testdata,this paper advances an. analysis method to evaluate coal bed gas injection/draw down well testing data fromthe angle of technology,i. e. "Evaluation and Analysis Approach",application of this approach may find out thecauses of curve deformation, ensure reliability and accuracy of well testing interpretation results and provideguiding suggestions to future testing operation and data interpretation.