Abstract
Organic fractions of artesian well waters from the oil-bearing Carrizo aquifer, Atascosa County, Texas, were examined by infrared and chromatographic methods in an attempt to relate components or component fractions to oil accumulation in the formation. A hexane-soluble acidic fraction, designated naphthenic acid fraction based upon its infrared spectrum was extracted from ground waters of the fresh water oil-bearing Carrizo Formation (Wilcox Group, Eocene age). Water co-produced with the oil contains over 1,000 times as much of the naphthenic acid fraction as is found in water up-dip of the oil. Water down-dip of the oil contains about five times as much of the naphthenic acid fraction as is found up-dip, and the down-dip fraction is more similar to the co-produced water naphthenic acids based upon infrared and gas chromatographic data. A naphthenic acid fraction is detectable in extracts of geologic formations associated with the Carrizo aquifer. Also present in these associated formations is a fraction containing a phthalic acid ester which is dissolved in Carrizo water and may be common to ground waters, but which apparently has not accumulated with oil in the Carrizo.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
