74469448
Dec 14, 1993
chemical compositions for use in well drilling and well maintenance, namely stuck-pipe release agent; bit and stabilizer balling prophylactic; cement spacer, stimulation fluid; sealing agent for water-flood areas, site isolation, damming and loss-circulation; drilling torque and drag-reduction agent; drilling lubricant and agent to drop sand from brines; environmentally oriented biocide for drilling fluids, water based paints and industrial processes; hydrocarbon-based polymers for absorption of crude oil and hydrocarbon products for marine and salt water spills, clean-up and filtering operations; polyacrylamide-based polymers for absorption of liquids and reduction of waste volumes; dewatering polymers for reduction and elimination of solids
Chemicals