Well treating composition and method of use

Details Well treating composition and method of use Well treating composition and method of use

1994-04-08

1995-03-14

Suchfield, George A.

Wells

Processes

Entraining or incorporating treating material in flowing...

166312, 175 64, E21B 2100, E21B 3700

Patent

active

053969588

ABSTRACT:
Improved mud additive compositions are provided which are especially formulated to control hole enlargement due to salt bed erosion during drilling, and to assist in solubilization of deposited salt during well operations. The compositions include a first ingredient such as sodium or potassium ferrocyanide and mixtures thereof, and a second ingredient such as the trisodium salt of nitrilotriacetic acid and alkali metal citrates. The first ingredient is generally present at a level of from about 50-95% by weight in the particulate, dilutable form of the invention, whereas the second ingredient is present at a level of from about 5-50% by weight. The compositions hereof may be added to drilling mud during drilling operations or to fresh water for removing salt depositions.

REFERENCES:
patent: 2426317 (1947-08-01), Menaul
patent: 3533470 (1970-10-01), Marsh et al.
patent: 3580337 (1971-05-01), Gogarty et al.
patent: 5213446 (1993-05-01), Dovan

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