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.
NETL
NSTL
万方数据
