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本文叙述了一种优良的油溶性树脂井液体系,在盐水中,加入总量为0.5%的油溶性树脂,分散后,以渗透率为100～800毫达西的刚玉岩心(φ25×30毫米)为介质,30分钟的总滤失量小于3毫升。树脂软化点为80～100℃,能全部溶于直链烃或芳香烃中,故不会对地层渗透率造成永久性损害。对温度和压力的研究表明:当温度在85℃以下,压差不大于30kg/cm~2时,体系性能不受影响。
In this paper, an excellent oil-soluble resin well fluid system is described. In the brine, a total of 0.5% oil-soluble resin is added and dispersed to form a corundum core having a permeability of 100 to 800 millidarcies (φ25 × 30 mm ) As medium, 30 minutes total loss of less than 3 ml. Resin softening point of 80 ~ 100 ℃, all soluble in straight-chain hydrocarbons or aromatic hydrocarbons, it will not cause permanent damage to formation permeability. Studies on temperature and pressure show that the system performance is not affected when the temperature is under 85 ℃ and the pressure difference is not more than 30kg / cm ~ 2.