Methods for the inhibition of salt blockages in oil and gas...

Details Methods for the inhibition of salt blockages in oil and gas... Methods for the inhibition of salt blockages in oil and gas...

2006-04-18

2006-04-18

Suchfield, George (Department: 3676)

Wells

Processes

Producing foam or gas in well by foaming or gas producing...

C166S310000, C166S312000, C166S371000, C507S244000, C507S259000, C507S266000, C507S927000

Reexamination Certificate

active

07028776

ABSTRACT:
Compositions and methods for the inhibition of salt formation in oil and gas wells are disclosed. In particular, nitrilotriacetamide and its salts are effective at treating existing salt formations, and in inhibiting formation of new deposits.

REFERENCES:
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patent: 3155178 (1964-11-01), Kirkpatrick et al.
patent: 3213018 (1965-10-01), Roland et al.
patent: 3367416 (1968-02-01), Ralston et al.
patent: 3486560 (1969-12-01), Hutchison et al.
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patent: 3913678 (1975-10-01), Blount et al.
patent: 4796702 (1989-01-01), Scherubel
patent: 4804484 (1989-02-01), Dadgar
patent: 5203834 (1993-04-01), Hutchins et al.
patent: 5310002 (1994-05-01), Blauch et al.
patent: 5385206 (1995-01-01), Thomas
patent: 5396958 (1995-03-01), Zaid
SPE 10097; “Use of Chemical Salt Precipitation Inhibitors to Maintain Supersaturated Salt Muds for Drilling Salt Formations;” S.L. Earl, J.J. Nahm;Society of Petroleum Engineers of AIME; 1961.
SPE 13246; “An Unusual Case of Salt Plugging in a High-Pressure Sour Gas Well;” M.C. Place Jr. and J.T. Smith;Society of Petroleum Engineers of AIME; 1964.

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