顺北区块钻井液沥青类抑制剂抗高温性能评价研究

ZHANG Xiao-yu,LI Xiang-chen, MA Yu-fen, QI Bing, JIA Xiao-yan

Guangzhou Chemical Industry(2022)

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Abstract
随着油气井开采深度的不断增加,井下的温度也不断增加,因此对钻井液抗高温性能提出了更高要求.优选出抗高温性能优良的抑制剂,对解决深部地层的井壁稳定具有重要意义.本研究针对顺北区块高温地层,进行了天然沥青类、改性沥青类、乳化沥青类三类抑制剂的相对膨胀降低率评价与封堵性能评价,采用自研的高温高压钻井液抑制性评价装置,优化了抗高温钻井液抑制剂相对膨胀降低率评价方法.
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