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The state of the art in scale inhibitor squeeze treatment
Petroleum Science ( IF 6.0 ) Pub Date : 2020-08-19 , DOI: 10.1007/s12182-020-00497-z
Amy T. Kan , Zhaoyi Dai , Mason B. Tomson

The mechanistic understanding of the reactions that govern the inhibitor retention and release, modeling, and the state-of-the-art innovation in squeeze treatment are reviewed. The retention and release are governed by (1) the amount of calcite that can dissolve prior to inhibitor-induced surface poisoning; (2) calcite surface poisoning after ~ 20 molecular layers of surface coverage by the adsorbed inhibitors to retard further calcite dissolution; (3) less base, \({\text{CO}}_{3}^{2 - }\), is released into the aqueous solution; (4) formation of the more acidic inhibitor precipitates; (5) phase transformation and maturation of the more acidic inhibitor precipitates; and (6) dissolution of the less soluble crystalline inhibitor precipitates. The trend to advance squeeze technologies is through (1) enhancing scale inhibitor retention, (2) optimizing the delivery of scale inhibitors to the target zone, and (3) improving monitoring methods. Lastly, a prototype yardstick for measuring the squeeze performance is used to compare the squeeze life of 17 actual squeeze treatments. Even though the various squeeze treatments appear to be different, all published squeeze durations can be rated based on the normalized squeeze life per unit mass of inhibitors.



中文翻译:

阻垢剂挤压处理的最新技术

综述了控制抑制剂保留和释放的反应机理,建模以及挤压处理技术的最新创新。保留和释放取决于(1)在抑制剂引起的表面中毒之前可以溶解的方解石的量;(2)方解石表面中毒后〜20个分子层的表面被吸附的抑制剂所覆盖,阻碍了方解石的进一步溶解;(3)减去基数\({\ text {CO}} _ {3} ^ {2-} \)释放到水溶液中;(4)形成更多酸性抑制剂沉淀物;(5)更酸性抑制剂沉淀物的相变和成熟;(6)溶解度较低的结晶抑制剂沉淀物的溶解。挤压技术的发展趋势是:(1)提高阻垢剂的保留率;(2)优化阻垢剂向目标区域的输送;以及(3)改进监测方法。最后,使用一个用于测量挤压性能的标准尺来比较17种实际挤压处理的挤压寿命。即使各种挤压处理似乎有所不同,也可以基于每单位质量抑制剂的标准挤压寿命来评估所有公开的挤压持续时间。

更新日期:2020-08-19
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