2023
DOI: 10.1021/acsomega.3c04795
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Laboratory Evaluation of a Low-Damage Authigenic Mud Acid System for Bai-823 Well Block

Xiaolong Ni,
Runxin Cao,
Weifeng He
et al.

Abstract: Aiming at the problem of single and poor adaptability of Bai-823 plugging removal system, an authigenic mud acid system using methyl formate, ammonium chloride, and ammonium fluoride as raw materials is proposed, which can adapt to the temperature of 60–80 °C of the target reservoir and sandstone lithology. The acid-generating capacity of the authigenic acid system at different temperatures was evaluated. The results showed that the H + concentration remained at 3.35 mol/L after 180 min … Show more

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