Same Day Downhole Critical Gas Content without the Core(Abstract)

摘要

Gas desorption techniques to analyze coal gas content require expensive sample retrieval methods and extended desorption and analysis times. WellDog has adapted its new downhole Raman spectrometer to measure gas contents in coalbed methane wells without core sampling and in a matter of hours. This technology,which has been successfully calibrated in three independent laboratories using state-of-the art Boyle's Law isotherm apparatus,accurately measures in-situ gas content in wells containing one or more coal seams.