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油井不动管柱酸化技术工艺应用

Petrochemical Industry Application(2013)

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Abstract
针对油井施工酸化周期的问题,研究应用了不动管柱酸化工艺,该工艺采用油套环空注入酸液,残酸由抽油泵返排,通过对原生产管柱进行镀膜预处理及施工后期泵入残酸处理剂,利用药剂的中和、络合作用提高残酸的pH值,降低矿化度,有效缓解了残酸对管柱的腐蚀作用,并解决了中和后的残酸由于流体性质的改变.解决了残酸对泵、油管、抽油杆的腐蚀问题及返排液中固体颗粒物对泵筒产生堵塞的问题.
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