Method for pickling a work string using dispersed...

Details Method for pickling a work string using dispersed... Method for pickling a work string using dispersed...

2007-03-09

2009-11-17

Carrillo, Sharidan (Department: 1792)

Cleaning and liquid contact with solids

Processes

Using sequentially applied treating agents

C134S010000, C134S022100, C134S022110, C134S022120, C134S022190, C134S028000, C134S030000, C134S034000, C134S036000, C134S041000, C134S042000, C510S253000, C510S421000, C510S505000

Reexamination Certificate

active

07618495

ABSTRACT:
A method for cleaning a work string which may have been used to inject drilling muds, cement slurries, cement displacement materials and the like into a well where the work strong may contain drilling mud residues, cement slurry residues, cement slurry displacement materials, pipe thread lubricants, pipe dope and the like, as well as corrosion on the inside of the work string by injecting a dispersion slug into and recovering the dispersion slug from the work string.

REFERENCES:
patent: 3613789 (1971-10-01), Son, Jr.
patent: 5753180 (1998-05-01), Burger
patent: 5885364 (1999-03-01), Hieatt et al.
patent: 5977032 (1999-11-01), Chan
patent: 2002/0132740 (2002-09-01), Von Krosigk et al.
patent: 2003/0102011 (2003-06-01), Smith et al.

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