Study and application of reservoir protection fluid system for drilling & completion using oil-film method
8th European Formation Damage Conference 2009 - New Technologies for Conventional and Unconventional Reservoirs(2009)
Abstract
To solve the problems of reservoir protection drilling and completion fluid technology and reservoir characteristics, a broad-spectrum oil-film fielding temporary plugging agent GPJ was developed and the oil-film method used for reservoir protection drilling and completion fluid systems were established. A good compatibility between GPJ and common drilling fluid systems was observed. The plugging rate and recovery rate of cores treated by the developed systems were both over 90% and the field test skin factor was close to zero. GPJ can quickly form a layer film of high toughness and low permeability by its effect of softening, deformation and adsorption. The oil-film fielding zone can be released by perforating and backflow of formation fluid and the productivity of oil and gas wells can be restored. The advantages of the broad-spectrum oil-film temporary plugging drilling and completion fluids system were presented. This is an abstract of a paper presented at the 8th European Formation Damage Conference (Scheveningen, The Netherlands 5/27-29/2009).
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