"Downhole
Raman Spectroscopy: Real Time, In Situ Chemical Analysis of Coalbed
Reservoirs"
Van Lieu, Neil R.1 (1)
WellDog, Inc,
A new, Raman spectrometer-based
analytical chemistry system has been developed to directly assess coalbed
reservoirs in place. The specially constructed, compact, and ruggedized Raman
analytical system is lowered deep into wells, where it analyzes the downhole,
in situ chemistry of the wellbore fluid, and measures methane content in real
time. The Raman spectroscopy system is suitable for remote characterization of
harsh environments, which would normally be inaccessible to high performance
laboratory instruments. A technological overview of this unique system is
presented, along with case studies of its operational performance under actual
field conditions.
AAPG Search and Discover Article #90063©2007 AAPG Annual Convention, Long Beach, California