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开发和应用形成损害减缓系统,用于重油储的重油储

Xi Lu¹, Lin Meng², Haibo Wang³

¹SINOPEC Petroleum Exploration and Production Research Institute, Changping District, Beijing, 100083, China. luxi.syky@sinopec.com.

Scientific reports

|December 18, 2025

概括

一个新的化学系统有效地减轻了因青沉积和粘土膨胀而造成的重油库损坏. 现场应用显著提高了石油产量,降低了注射压力.

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:

沉积石和粘土膨胀造成的重油库的形成损伤严重阻碍了石油开采.
了解青聚合和粘土行为之间的相互作用对于有效的缓解至关重要.

研究的目的:

开发和验证一种复合化学系统,以减轻重油库中组合形成损害.
优化化学系统的配方,以最大限度地有效地减少透性损害.

主要方法:

实验室模拟了青沉积动态,并研究了粘土对透性的影响.
表面活性剂 (二二硫酸盐 - SDBS) 和添加剂 (n-pentanol) 的选,用于降低粘度和防止凝结.
评估不同酸 (HCl,HBF4) 对粘土溶解效率的评估.
沙袋实验,以评估透率的降低和恢复.
在Shengli油田的现场应用.

主要成果:

最优的化学系统包括SDBS,n-pentanol,HCl和HBF4在5:2:8:12的质量比.
开发的系统有效地恢复了由于青和粘土而受损的透性.
在56个油井的现场应用导致石油生产率增加了35%以上,注入压力降低了42%.

结论:

复合化学系统为解决重油库中复杂形成损伤提供了可行的解决方案.
成功的实地试验证明了开发的缓解策略的实际有效性和经济效益.

关键词:

阿斯法烯沉积的沉积方式粘土的胀粘土的胀实地测试实地测试实地测试形成损伤造成的损伤沉重的石油重型石油缓解系统的缓解系统绩效评价绩效评价绩效评价绩效评价绩效评价

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