Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Patent
1995-04-17
1997-06-03
Springer, David B.
Earth boring, well treating, and oil field chemistry
Earth boring
Contains organic component
507137, 507910, C09K 706, C09K 702
Patent
active
056354576
ABSTRACT:
A non-toxic, inexpensive synthetic fluid for use in wellbore fluids (e.g., drilling fluids) is selected from the group consisting of (A) fluids having (I) a pour point greater than about -30.degree. C. (-22.degree. F.) and (II) a cetane index greater than 50, and comprising (i) at least about 95 weight percent hydrocarbons containing 11 or more carbon atoms, (ii) greater than 5 weight percent hydrocarbons containing 18 or more carbon atoms, (iii) at least about 50 weight percent isoparaffins, (iv) at least about 80 weight percent total paraffins, (v) less than 10 weight percent naphthenics, (vi) less than 0.1 weight percent aromatics, and (vii) at least 2 hydrocarbons containing a consecutive number of carbon atoms, and (B) fluids comprising (i) at least about 95 weight percent hydrocarbons containing 10 or more carbon atoms and (ii) at least about 90 weight percent n-paraffins.
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Frieman Shlomo R.
Springer David B.
Union Oil Company of California
Wirzbicki Gregory F.
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