Oilwell paraffin prevention chemicals

Conference · Wed Jan 01 04:00:00 EST 1975 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:6918937

Fulford, R S

Factors that influence paraffin deposition were investigated in laboratory experiments. An apparatus was built that measures the pressure and flow rate changes caused by paraffin deposition from crude oil in one-half inch diameter steel pipe. Experiments were done with and without commercial paraffin prevention chemicals to determine the effectiveness of the chemicals. Several additives altered the flow properties of the waxy crude oil and thus prevented paraffin deposition at cold temperatures. The chemicals investigated include polyethylene, ethylene copolymers, xylene, naphthylene as well as various surfactants sold for paraffin prevention. Temperature is the most important factor in paraffin deposition, but since crude oils with high wax contents are viscoelastic, the flow rate and pressure also are important. As the flow rate decreases, high wax crude oils become more viscous. (15 refs.)

• Research Organization: Cities Service Oil Co.
• OSTI ID: 6918937
• Report Number(s): CONF-750924-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE-5611
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ADDITIVES
ALKANES
AROMATICS
BENCH-SCALE EXPERIMENTS
CONDENSED AROMATICS
COPOLYMERS
DEPOSITION
FLOW RATE
FLUID FLOW
HYDROCARBONS
INHIBITION
NAPHTHALENE
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
PARAFFIN
POLYETHYLENES
POLYMERS
POLYOLEFINS
REMOVAL
SURFACTANTS
TEMPERATURE DEPENDENCE
VISCOSITY
WAXES
WELLS
XYLENES