Polymer mud system improves well condition

QATARI DRILLING FLUIDS-1This first of two articles on Qatari drilling fluid shows how thin, nondamaging XC-polymers improved efficiencies and saved on costs as compared to thick, nondamaging polymers. The conclusion describes how bentonite water-base mud systems also improved penetration rates and reduced costs in relation to nondamaging polymer mud systems.In more than 250 horizontal wells in the Dukhan field, Qatar, the use of a thin, nondamaging XC-polymer mud system provided a more-efficient and economical system than using a thick nondamaging polymer mud system.Hole angleThe hole-cleaning principles of vertical wells also apply to directional wells with inclination less than 10°...

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