Water base drilling mud composition
Drilling fluid additives
Oil well drilling clay conditioners and method of their preparation
Oil well drilling clay conditioners and method of their preparation Patent #: 4457853
ApplicationNo. 06/899509 filed on 08/22/1986
US Classes:507/109, Includes metal compound other than an alkali or alkaline earth metal compound (e.g., Al, Cr, Fe, Mn, Cu, etc.)530/506Heavy metal, aluminum, silicon or phosphorus containing
ExaminersPrimary: Guynn, Herbert B.
Attorney, Agent or Firm
International ClassesC09K 8/20 (20060101)
C09K 8/02 (20060101)
AbstractAn improved process for making drilling fluid additives. The drilling fluid additives generally comprise titanium and/or zirconium lignosulfonates. The improved process of this invention can be performed without any delays caused by plugging during filtration. Filtration plugging problems are eliminated by adding only stoichiometric amounts of zirconium and/or titanium lignosulfonate to the lignosulfonate mixture prior to filtration.