Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Reexamination Certificate
2008-07-15
2008-07-15
Zimmer, Marc S (Department: 1796)
Earth boring, well treating, and oil field chemistry
Earth boring
Contains organic component
C507S136000, C507S139000
Reexamination Certificate
active
07399731
ABSTRACT:
A non-aqueous wellbore fluid comprises a non-aqueous continuous phase with one or more organic salts having the formula ((R1-Q)pX)mZn, one or more oligomeric organic salts based on linked ((R1-Q)pX)mZnsubunits, or a combination thereof dissolved therein. X is a negatively charged functional group. R1is an organic group comprising a principal straight chain and one or more side chains which branch from and are shorter than said principal straight chain. Q is a covalent bond or a polar linkage group which connects a terminal atom of the principal straight chain of the organic group R1to the functional group X. p is a positive integer which is the number of organic groups R1which are connected to the functional group X. Z is a cation. m and n are positive integers which ensure that the organic salts are charge neutral. The one or more organic salts increase the electrical conductivity of the wellbore fluid.
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Jones Timothy Gareth John
Tustin Gary John
Dann Dorfman Herrell and Skillman, P.C.
M-I L.L.C.
Zimmer Marc S
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