Preventing scale in a southeastern New Mexico waterflood operation

Journal Article · Wed Jan 01 04:00:00 EST 1969 · Baroid News Bull.; (United States)

OSTI ID:6816890

Dowling, M B

On a southeastern New Mexico waterflood operation, Baroid Surflo-H35 is preventing injection waters from depositing scale on downhole equipment. This New Mexico operation consists of 26 pumping wells and 29 injection wells producing from stringers in 4 sections of Queen sand. Injection water is commingled produced water and fresh water. By 1964, all 4 sections were being flooded with 10,000 bpd of commingled water. Scale was first discovered in 1966 on the mud anchor of one of the producing wells. Analysis revealed it was calcium carbonate. An analysis is given of source water, produced water, and commingled injection water. After these analyses were completed, it was recommended that 10,000 bpd injection system be continuously treated with 5 ppm of the scale inhibitor. The inhibitor was also used for continuous downhole treatment of 4 producing wells to prevent scale on pumps, rods, and tubing. The treatment of the producing wells involves a beam-powered chemical injector pumping into the casing-tubing annulus, where the inhibitor is carried downhole by a stream of bypassed fluid. Since treatment of both injection water and producing wells with the scale inhibitor began, the operation has no downtime due to scale formation.

• OSTI ID: 6816890
• Journal Information: Baroid News Bull.; (United States), Journal Name: Baroid News Bull.; (United States) Vol. 21:1; ISSN BNBUD
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ADDITIVES
ALKALINE EARTH METAL COMPOUNDS
ANTIFOULANTS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHEMICAL ANALYSIS
CONTROL
CORROSION INHIBITORS
COST
DEPOSITS
ENGINEERING
FEDERAL REGION VI
FLUID INJECTION
FOULING
HYDROGEN COMPOUNDS
INJECTION WELLS
NEW MEXICO
NORTH AMERICA
OIL WELLS
OPERATING COST
OXYGEN COMPOUNDS
PRODUCTIVITY
QUALITATIVE CHEMICAL ANALYSIS
QUANTITATIVE CHEMICAL ANALYSIS
RESERVOIR ENGINEERING
SCALE CONTROL
USA
WATER
WATERFLOODING
WELLS