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长庆油田侏罗系油藏固井技术研究及应用

Oil Drilling & Production Technology(2012)

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Abstract
针对长庆油田侏罗系渗透率相对较高、油水同层、油藏底水活跃的固井难题,研究开发出具有微膨胀、早强、降失水作用的水泥浆体系,经过2010年在靖安油田123口井的现场应用证明,该水泥浆体系具有流变性好、失水量小、稠化曲线呈直角,早期抗压强度高的特点,解决了靖安油田侏罗系固井质量差的难题,固井合格率100%、优质率81.3%,大幅度地提高了固井质量,为甲方快速有效开发侏罗系油藏提供了可靠的技术支撑。
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slurry,channeling resisitant,cementing,early strength by expansion
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