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Petroleum additives
Water-based drilling fluid is a sol-gel suspension mixed system with water as the dispersion medium, bentonite, weighing agent, various chemical treatment agents as the dispersion phase. Its main components are water, clay, weighing agents, various chemical treatment agents.
Water-based drilling fluids can also be divided into:
(1) Freshwater drilling fluid.
(2) Salt water drilling fluid (including seawater salt water drilling fluid).
(3) Calcium treated drilling fluid
(4) Saturated saline drilling fluid.
(5) Mixed emulsified (water in oil) drilling fluid
(6) Non dispersed low solid polymer drilling fluid.
(7) Potassium based drilling fluid.
(8) Polymer drilling fluid.
