73212270
Apr 19, 1979
Nov 3, 1981
Oil and Gas Well Drilling Completion and Work-Over Chemicals-Namely, a Water Soluble Chemical for Establishing a Buffered pH of Approximately 10 in Waters, Aqueous Solutions, and Oilfield Brines, Particularly in Aqueous Solutions or Brine Solutions or Brine Solutions Containing Hydroxy Ethyl Cellulose
Chemicals