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US 8,940,666 B2Granted
Fluid composition for wellbore and pipeline cleanout and method of use thereof
AssigneeBear Creek Services, LLC
InventorsNathan R. Hutchings, Stewart A. Simpson
Life of this patent
Estimating the term…
Abstract
A fluid composition for cleanout of wellbores and pipe systems includes an effective amount of an amphiphilic chemical combined with an effective amount of a friction reducer in an aqueous solution of a base liquid. A remainder of the composition includes the base liquid.
Claims9
A fluid composition for the cleanout of debris from wellbores or pipe systems, comprising:
- an effective amount of an amphiphilic chemical combined with an effective amount of a friction reducer in an aqueous solution of a base liquid wherein the amphiphilic chemical comprises 2-butoxyethanol in a range of 2.4 to 24 parts per million combined with acetic acid in a range of 6 to 24 parts per million;
- and
- a remainder of the composition comprising the base liquid.
A method for cleaning out a wellbore, comprising:
- pumping a fluid composition through a conduit inserted into the wellbore, the fluid composition comprising an effective amount of an amphiphilic chemical combined with an effective amount of a friction reducer in an aqueous solution of a base liquid, and a remainder of the composition comprising the base liquid wherein the amphiphilic chemical comprises 2-butoxyethanol in a range of 2.4 to 24 parts per million combined with acetic acid in a range of 6 to 24 parts per million;
- receiving the fluid composition with debris entrained therein at the surface from an annular space between the conduit and a wall of the wellbore.
Dependencies are inferred from the claim text.