Method of inhibiting paraffin deposition in oil wells

Patent · Tue Oct 03 00:00:00 EDT 1967

OSTI ID:6323660

Bucaram, S M

In a method for inhibiting paraffin deposition in oil wells, a heated solution of naphthalene in a normally liquid mineral oil is introduced into a well under conditions such that the naphthalene in solution will be placed in the oil- bearing formation surrounding the well. The concentration of the naphthalene is such that upon cooling of the solution to formation temperature, the major amount of naphthalene in solution will solidify in the formation and subsequently serve as an in-situ source of paraffin inhibitor when the well is producing. Thus, as the oil flows toward the well it will dissolve a portion of the naphthalene and carry it into the well and through the tubing toward the earth's surface. (3 claims)

• Assignee: Sinclair Research Inc.
• Patent Number(s): US 3344859
• OSTI ID: 6323660
• Resource Relation: Patent File Date: Filed date 30 Apr 1964
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
OIL WELLS
CORROSION INHIBITORS
PARAFFIN
DEPOSITION
ADDITIVES
INHIBITION
NAPHTHALENE
PETROLEUM
SOLIDIFICATION
ALKANES
AROMATICS
CONDENSED AROMATICS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PHASE TRANSFORMATIONS
WAXES
WELLS
020300* - Petroleum- Drilling & Production