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Well type: Oil producer
TD: 8,328 ft [2,539 m]
Bottomhole static temperature: 190 degF [88 degC]
Permeability: 50–100 mD
Completion type: 7-in [17.8-cm] slotted liner
Breaker fluid density: 1.05 sg at 8.7 lbm/galUS
An operator sought to improve oil production from a development field offshore Gabon. After laboratory tests, M-I SWACO proposed using the VERSA-OUT water-based filtercake breaker system in the open hole for filtercake treatment of the VERSAPRO invert-emulsion reservoir drill-in fluid system. When the well was placed on production after treatment, oil production exceeded the operator’s highest expectations by more than 15%.
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