Paraffin deposition control

Patent · Tue Dec 17 04:00:00 EST 1968

OSTI ID:5650505

Marsh, B E; Betty, Jr, R J

A method of controlling the deposition of paraffin from petroliferous fluids consists of introducing into such fluids or forming in situ in such fluids a urea or a polyurea to substantially retain the paraffinic materials in suspense or solution in the hydrocarbon fluid and thus prevent paraffin deposition from taking place. These agents may be introduced to the oil fluids at any stage of production from being added to or formed in situ in the producing formation to addition to storage tanks. Ureas and polyureas suitable for use in this manner may be formed by the reaction of aliphatic amino compounds with aromatic and aliphatic isocyanates and polyisocyanates respectively. Mixture of amines and mono- and polyisocyanates may be used. The amine terminated structure is preferred for control of paraffin deposition. (11 claims)

• Assignee: Armour Industrial Chem. Co.
• Patent Number(s): US 3416605
• OSTI ID: 5650505
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ADDITIVES
ALKANES
AMIDES
AMINES
AMINO ACIDS
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
DEPOSITION
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
INHIBITION
MAINTENANCE
MIXTURES
OIL WELLS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
PARAFFIN
PETROLEUM
SUSPENSIONS
UREA
WAXES
WELL SERVICING
WELLS