Process for inhibiting hydrate formation in producing gas wells

Details Process for inhibiting hydrate formation in producing gas wells Process for inhibiting hydrate formation in producing gas wells

1982-10-18

1984-06-26

Suchfield, George A.

Wells

Processes

Material placed in pores of formation to treat resident...

166362, 166371, E21B 4312

Patent

active

044560672

ABSTRACT:
Microcapsules containing a gas hydrate inhibitor, such as a glycol, are suspended in a carrier fluid and injected directly into a gas-bearing formation via a producing well. The microcapsules release the hydrate inhibitor in situ at varying rates to provide a relatively continuous flow of inhibitor into the produced gas-water mixture over a long period of time.

REFERENCES:
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patent: 2748867 (1956-06-01), Lissant
patent: 2790500 (1957-04-01), Jones
patent: 3021901 (1962-02-01), Earlougher
patent: 3131146 (1964-04-01), Griffith
patent: 3348614 (1967-10-01), Sinclair et al.
patent: 3577515 (1971-05-01), Vandegaer
patent: 3627047 (1971-12-01), Wilson
patent: 3676363 (1972-07-01), Mosier
patent: 3968840 (1976-07-01), Tate
Uren, Petroleum Production Engineering, Oil Field Exploitation, 3rd Edition, McGraw-Hill Books Co., Inc., New York, 1953, pp. 600-602.
"Alcohol Prevents S. Barrow Field Freezeups", The Oil and Gas Journal, vol. 68, No. 52, Dec. 28, 1970, p. 174.
Withers et al., "Glycol Injection Solves Canadian Gas-Gathering Problem", The Oil and Gas Journal, vol. 65, No. 6, Feb. 6, 1967, pp. 81-86.
"Relationship Between Temperature of Hydrate Formation of Natural Gases and Freezing Temperatures of Antihydrate Inhibitors," A. G. Aliev et al., Gazovaya Prom., May 1969-pp. 16-18-Tulsa Abstract.
"Prevention of Hydrate Formation in the Well-Bore Area," V. I. Sumets, Gazovaya Prom., Feb. 1974-pp. 24-26-Tulsa Abstract.

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