Process for the inhibition of swelling of shale in aqueous alkaline medium
Abstract
Abstract 1. A PROCESS FOR INHIBITING THE SWELLING OF SHALE IN AN AQUEOUS ALKALINE MEDIUM COMPRISING THE STEPS OF: A. PREPARING AN AQUEOUS MEDIUM; B. ADDING TO SAID MEDIUM A POLYVALENT METAL ION SELECTED FROM THE CLASS CONSISTING OF BISMUTH, CHROMIUM, COBALT, IRON, LATHANUM, MANGANESE, NICKEL, TIN, TITANIUM, ZINC, AND ZIRCONIUM, SAID ION BEING COMPLEXED BY A COMPLEXING COMPONENT SELECTED FROM THE CLASS CONSISTING OF ACETIC, CITRIC, FORMIC, LACTIC, OXALIC, AND TARRTARIC ACID, THE ALKALI METAL AND AMMONIUM SALTS AND MIXTURES THEREOF, THE EQUIVALENT WEIGHT RATIO OF POLYVALENT METAL ION TO COMPLEXING COMPONENT BEING AT LEAST ABOUT 1-TO-.2; C. ADJUSTING THE PH OF THE MEDIUM TO ABOVE 7.0; AND D. ADDING TO SAID MEDIUM SHALE TO PROVIDE A SUSPENSION.
Inventors
- 👤 A Perricone
- 👤 H Young
- 👤 G Bettge
- 👤 D Enright
Bibliographic Details
Claims Analysis
Total Claims: 2References Cited (Backward Citations)
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