Method of cleaning an oil or gas well

Details Method of cleaning an oil or gas well Method of cleaning an oil or gas well

1994-03-11

1995-08-08

Novosad, Stephen J.

Wells

Processes

Chemical inter-reaction of two or more introduced materials

166304, 166312, 166384, 210732, 210733, 210747, E21B 3706, E21B 4328

Patent

active

054390583

ABSTRACT:
A method of cleaning an oil or gas well includes mixing a caustic with a saline solution to precipitate hydroxide species from the saline solution and form a milky suspension. The suspension is contacted with contaminants in a well bore to entrap the contaminants. A polymeric flocculant is then mixed with the suspension in the well bore to aggregate the hydroxide species and the entrapped contaminants into flocs. The flocs are extremely strong and can withstand the highly turbulent flow existing in the well bore and can be readily flushed out of the well bore.

REFERENCES:
patent: 1873083 (1932-08-01), Walker
patent: 2429593 (1947-10-01), Case
patent: 2546586 (1951-03-01), Cross
patent: 2548616 (1951-04-01), Priestman et al.
patent: 2567009 (1951-09-01), Calhoun et al.
patent: 3116781 (1964-01-01), Rugeley et al.
patent: 3182877 (1965-05-01), Slator et al.
patent: 3285485 (1966-11-01), Slator
patent: 3373818 (1968-03-01), Rike et al.
patent: 3738437 (1973-06-01), Scheuerman
patent: 3884302 (1975-05-01), Messenger
patent: 4127174 (1978-11-01), Sharpe et al.
patent: 4284140 (1981-08-01), Sydansk et al.
patent: 4321968 (1982-03-01), Clear
patent: 4380268 (1983-04-01), Martin
patent: 4451377 (1984-05-01), Luxemburg
patent: 4476930 (1984-10-01), Watanabe
patent: 4572786 (1986-02-01), Endo
patent: 4599117 (1986-07-01), Luxemburg
patent: 4702844 (1987-10-01), Flesher et al.
patent: 4765913 (1988-08-01), Featherstone
"Pall Filtration Services for Completion, Workover, and Stimulation" Pall Well Technology, 1987, pp. 2-15.
"Coiled Tubing Handbook: Operations and Services Parts 1, 4, 8, and 13" Gulf Pub. Co., 1993.
"Versafloc.TM. Polymers Reduce Your Displacement Costs" Pall Well Technology, Mar. 1994, 29 pages total.
"Polymeric Flocculants Prove Most Effective Chemicals for Well-Bore Cleanup Operations" Holland et al., Soc. Petr. Eng. 1994.
"Versafloc.TM. Polymers Reduce Your Displacement Costs" Pall Well Technology Filtration Service Co., 1994, pp. 1-8.

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