Hydrocarbons associated with brines from geopressured wells Page: 4 of 10
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15 July 1991
Quarterly Report No. DE-FC07-901D12945-6
Report Period: 1 Apr - 30 Jun 1991
HYDROCARBONS ASSOCIATED WITH BRINES FROM GEOPRESSURED WELLS
THE UNIVERSITY OF SOUTHWESTERN LOUISIANA (USL) -
DE-FC07-90ID12945
3 Mar 1990 - 31 Dec 1991
Summary of Research Goals:
To determine the concentration of the cryocondensates in fluids of the various USDOE
Geopressured wells a function of production volume. The wells will be visited each month
that they are operating and samples are to be taken cryogenically during each visit. A
gas scrubbing system will continuously sample the gas streams of the wells in the inter-
vals between visit. Collectors, exchanged daily by site personnel, are to be retrieved on
each visit.
To correlate the production of the collected compounds with reservoir and well production
characteristics.
To develop a harsh environment pH probe for use in well brines.Contract Tasks:
Task 1:
GAS SCRUBBER SAMPLES
We have designed and installed a gas scrubbing system at the
Pleasant Bayou Well to collect a daily sample of the benzene and
toluene components of the cryocondensates. The device is usually
simply referred to as the "scrubber". A very small portion of the
gas stream is diverted through a pressure and flow control system
into a collector. Gas enters the collector at a rate of 10 mL/s
through a fritted metal gas disperser into a high molecular weight
oil. The components of the gas stream are partitioned between
the gas and oil phases. Each day the bottle of oil is removed,
sealed with a septum and replaced. We are currently using
Mobile-) (TM) for the collection medium since it is relatively
inexpensive and contains none of the aromatic compounds of
interest. Each month the set of sealed, daily samples are picked-
up and returned to our laboratory for gas chromatographic analy-
sis for benzene and toluene. The daily results are then normalized
to the more complete monthly cryogenic analyses.-'E1VYED
t oQ 23 1993
. STI1
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Hydrocarbons associated with brines from geopressured wells, report, July 15, 1991; Idaho Falls, Idaho. (https://digital.library.unt.edu/ark:/67531/metadc1189785/m1/4/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.