Well-cleaning process using viscosified surfactant solutions

Details Well-cleaning process using viscosified surfactant solutions Well-cleaning process using viscosified surfactant solutions

1977-10-31

1978-10-17

Novosad, Stephen J.

Wells

Processes

Separating material entering well

166312, 175 65, 252 855B, E21B 4300, E21B 2100

Patent

active

041203569

ABSTRACT:
Thixotropic compositions having initially relatively high viscosity which can decrease with time are employed in a method for cleaning a borehole. The compositions are prepared by admixing water and chloroform with an anionic surfactant, a cationic surfactant, an acid to adjust the pH of the aqueous phase to 4.5 or less, and a buffer salt. These compositions are valuable drilling fluids, fracturing fluids, and surfactant fluids for chemical flooding in tertiary oil recovery.

REFERENCES:
patent: 2169675 (1939-08-01), Bays
patent: 2357565 (1944-09-01), Vietti et al.
patent: 2663689 (1953-12-01), Kingston et al.
patent: 3077929 (1963-02-01), Fetkovich et al.
patent: 3361313 (1968-01-01), Riggs, Jr. et al.
patent: 3508612 (1970-04-01), Reisberg et al.
patent: 3613789 (1971-10-01), Son, Jr.

Affiliated with

Also associated with

Rating

Well-cleaning process using viscosified surfactant solutions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Well-cleaning process using viscosified surfactant solutions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well-cleaning process using viscosified surfactant solutions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-371372