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CONTINUOUS POLYMERIZATION PROCESS
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Filtration control additive for invert emulsion drilling fluids and method of preparation
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Filtration control additive for invert emulsion drilling fluids and method of preparation
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Invert emulsion drilling fluid comprising oligamide composition
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Invert emulsion drilling fluid comprising oligamide composition
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Drilling fluid containing a copolymer filtration control agent
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Drilling fluid
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GB8304529D0
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Drilling fluids and methods of using them
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Drilling fluids and methods of using them
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Drilling fluids and methods of using them
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Non-polluting oil for offshore drilling fluids - with low toxicity to shrimps and low viscosity
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Drill flush and method for use thereof.
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Procedure for drilling under the surface and drill for use in exercising the procedure
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Method and apparatus for washing particulate material
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Cuttings washer assembly
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Mud separator valve apparatus
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Drilling fluid containing a copolymer filtration control agent
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Aqueous drilling fluid additive, composition and process
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Aqueous drilling fluid additive
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METHOD FOR DRILLING HOLES
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