在断裂中对酸流行为进行定量评估,并根据酸虫洞过损失优化设计参数
Sen Yang1, Kaige Zheng2, Jian Zhang2
1Xi'an Research Institute of China Coal Technology & Engineering Group Corp, Xi'an, 710077, China. yang_sen2024@126.com.
Scientific reports
|July 9, 2024
概括
对于水库重建的矩阵酸化面临着过挑战. 一个新的模型模拟了酸蚀刻虫洞膨胀,揭示了有效破裂的粘度和酸度等关键因素.
科学领域:
- 石油工程是石油工程中的一个.
- 储水库工程 储水库工程
- 化学工程是化学工程的重要组成部分.
背景情况:
- 矩阵酸化对于水库重建至关重要,旨在增强自然断裂通信.
- 酸性断裂过程中的过限制限制了初级酸蚀断裂的扩张,阻碍了水库刺激.
研究的目的:
- 开发一个计算模型,模拟在矩阵酸化过程中酸蚀刻虫洞扩张的过程.
- 分析各种参数对虫洞传播和酸透的影响.
主要方法:
- 开发了一个计算模型来模拟酸蚀刻虫洞膨胀.
- 该模型纳入了诸如形成过程,注射持续时间,压力和时间变化的酸透率等因素.
- 分析的重点是位,粘度,酸度和水库特性.
主要成果:
- 过率受到位,液体粘度,酸度和水库物理性质的显著影响.
- 有效破裂的最佳酸度在15%至20%之间.
- 位冲击破坏,但超过5.0 m3/min可以减少蚀刻距离.
结论:
- 开发的模型提供了对时间依赖的酸透和虫洞膨胀的见解.
- 粘度至关重要,特别是在低粘度条件下,酸度显著影响破裂的成功.
- 通过了解实时酸度分布和化学反应范围,可以促进对矩阵酸化的优化设计参数.
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