提高煤层气直井动液面解释精度方法研究与应用
Research and Application of Improving the Interpretation Accuracy of Coalbed Methane Vertical Well Dynamic Fluid Levels
王琪 1郭晶 1范秀波 1李邵楠 2袁延耿 1彭鹤1
作者信息
- 1. 华北油田山西煤层气勘探开发分公司,山西 046000
- 2. 华北油田经济技术研究院,河北 062552
- 折叠
摘要
煤层气井动液面解释精度对于煤层气井精细化排采管控至关重要,本文对比了接箍法、音标法及声速法等测液面方法的优缺点,分析了影响动液面解释精度的主控因素为井筒温度和气泡段,从而提出了一种提高动液面解释精度的新方法.此方法综合考虑了影响动液面解释精度的各个要素,能够依据所解释液面较为准确地反映煤层气井的井底流压,克服了前期其它方法所存在的一系列问题,为煤层气井精细化排采管控提供保障.
Abstract
The interpretation accuracy of dynamic fluid levels in coalbed methane wells is crucial for the precise drainage management of coalbed methane wells.The paper compares the advantages and disad-vantages of the coupling method,phonographic method,and sound velocity method for measuring liquid level.The main factors influencing the interpretation accuracy of dynamic fluid levels are wellbore tem-perature and bubble cross-sectional area.A new method is proposed to improve the interpretation accura-cy of dynamic fluid levels,which comprehensively considers various factors affecting the interpretation ac-curacy.This method can reflect the bottom-hole flow pressure of coalbed methane wells more accu-rately according to the interpreted fluid levels,addressing a series of issues present in previous meth-ods.This provides a guarantee for the precise drainage and production management of coalbed meth-ane wells.
关键词
煤层气直井/动液面/声速/解释精度Key words
Coalbed methane vertical well/dynamic fluid level/sound velocity/interpretation accuracy引用本文复制引用
出版年
2024
NETL
NSTL
万方数据