Method of improving the flow properties of a crude oil or natural gas liquid
AssigneeMaersk Olie & Gas A/S
InventorJens H. Hansen
Life of this patent
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Abstract
A method of improving the flow properties of a wax-containing crude oil and natural gas liquids containing a natural pour point depressant wherein a synthetic pour point depressant is added to the crude oil or natural gas liquid when at a temperature of not more than 20° C. below the inversion temperature thereof.
Claims5
A method of improving the flow properties of a wax containing crude oil or natural gas liquid containing a natural pour point depressant by adding a synthetic pour point depressant, characterized in that the synthetic pour point depressant is added to the crude oil or natural gas liquid at a higher temperature than 20° C. below the inversion temperature of the crude oil or natural gas liquid.
A method according to any of the above claims, characterized in that the synthetic pour point depressant is added in an amount of 5-2000 ppm, preferably 20-500 ppm and most preferably 20-100 ppm.
A method according to any of the above claims, characterized in that the synthetic pour point depressant is injected into the well bore.
Dependencies are inferred from the claim text.