selective chemical plugging
选择性化学封堵
以上为机器翻译结果，长、整句建议使用 人工翻译 。
According to the casing strings of different sizes, converting zone technology including chemical plugging and packer setting is matched during the process of selective zone production.
针对不同尺寸的套管完井，在侧钻井分层开采的过程中的配套了封堵和卡封等配套的改层工艺。
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