Process for remedial cementing

Details Process for remedial cementing Process for remedial cementing

1985-11-18

1987-03-10

Suchfield, George A.

Wells

Processes

Separate steps of fracturing or attacking formation

166284, 166285, 166304, E21B 33138

Patent

active

046484531

ABSTRACT:
An improved method is disclosed for remedial cementing operations. Prior to conducting the remedial cementing operation, the zone to be cemented is pretreated with a hydrocarbon solvent capable of dissolving hydrocarbons, such as oils and asphaltenes. Following solvent treatment, the zone may be treated with an acid solution capable of dissolving mineral constituents.

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