Synthetic base fluid for enhancing the results of crude oil characterization analyses
AssigneeBaker Hughes Incorporated
InventorsTimothy Martin Beyer, Steven Kyle Watson
Life of this patent
Estimating the term…
Abstract
Blends of synthetic olefins for use as the continuous phase of fluids selected from the group consisting of drilling, drill-in, and completion fluids. The blends meet EPA discharge requirements while also permitting investigators to clearly discern the presence and quantity of biological markers in reservoir fluid samples—particularly pristane and phytane.
Claims51
A drilling system fluid adapted to provide accurate reservoir fluid characterization analysis, said drilling system fluid comprising a continuous phase comprising a quantity of isomerized olefins, wherein about 50 volume % or more of said isomerized olefins have from 15 to 16 carbon atoms.
A drilling system fluid adapted to provide accurate reservoir fluid characterization analysis, said drilling system fluid comprising:
- a continuous phase comprising a quantity of isomerized olefins, about 50 vol. % or more of said isomerized olefins having from 15 to 16 carbon atoms;
- and,
- a second quantity of linear alpha olefins having 16 carbon atoms.
A method effective to provide accurate reservoir fluid characterization analysis, said method comprising providing a drilling system fluid comprising a continuous phase comprising a blend of olefins comprising a quantity of isomerized olefins, wherein about 50 vol. % or more of said isomerized olefins have from 15 to 16 carbon atoms.
A method for accurate analysis of the presence and quantity of pristane and phytane in reservoir fluids, said method comprising providing a drilling system fluid comprising a continuous phase comprising a blend of olefins, said blend consisting essentially of a first quantity of isomerized olefins having from 15 to 16 carbon atoms and a second quantity of linear alpha olefins having 16 carbon atoms.
Dependencies are inferred from the claim text.