Method of determining the optimum aqueous composition for preventing _the swelling and dispersion of subterranean formation particles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 26, 1985
Grant Date -
N/A
app pub date -
Jun 13, 1983
filing date -
Jun 13, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is a process of formulating an aqueous medium to minimize the swelling and dispersion of subterranean formations contacted by the aqueous medium, particularly the aqueous phase of a water base drilling fluid. The process comprises: measuring a filtration property of a series of aqueous slurries containing particles of the subterranean formation and various concentrations of a water soluble compound which inhibits the swelling or dispersion of shales to determine the concentration range of the compound which maximizes the filtration rate; measuring a filtration property or the zeta potential of a series of aqueous slurries having a varying pH in the range from about 8 to about 13 to determine the pH range which either maximizes the filtration rate or provides a zeta potential in the range of about -10 millivolts to about +20 millivolts, respectively; and utilizing the concentration range of the compound and the pH range to formulate the aqueous medium.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully