engleski

Control of mud dispersibility reduces drilling waste volume

Large quantities of waste fluids are created during everday oilfield activities. Mud comprises the largest category of waste generated during the develošment of oil and gas wells. The properties of a mud system that are directly related to pollution are dispersibility, dewaterability and toxicity. The cost of making up these fluids and disposing of them are driving forces for reducing the amount of drilling fluid needed, and for recycling and reusing drilling fluids whenever possible. The amount of waste generated during the drilling process is directly related to the size and depth of the hole drilled. generation of such waste will be minimised by keeping the hole drilled as near the diameter of the drill bit as possible and preventing shale cutting disintegration in the mud. In this paper, stabilising action of different inhibitive mud on clay samples from outcrops and core samples from well HZ-1 is presented.

mud (drilling fluid); waste; dispersion; environment protection

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