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化学储层保护措施在渤海某油田的应用

Tianjin Chemical Industry(2023)

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Abstract
渤海某油田由于储层产出液矿化度高,原油粘度大、胶质含量高,导致生产井存在严重的腐蚀结垢及地层堵塞污染等问题,造成油井产量递减,低效井增多.本文通过对该油田油藏情况及结垢堵塞原因的分析,开发了一套多功能储层保护修井液体系.其中,多功能清洗剂可有效清洗井筒及近井地带有机垢,无机垢清洗剂可深度清除地层无机垢,疏通地层孔道,洗井助排液可提高作业后地层孔隙流体生产返排能力.通过现场多井次应用,作业井平均产能恢复率106.25%,实现了提液增油的目的,该措施可推广应用至其他稠油油田或高矿化度产出液油田.
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