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开发和描述一种热诱导可扩展和产生酸的临时堵塞剂,用于水库形成

Kai Shan^1,2, Zhengsong Qiu^1,2, Qi Yin³

¹School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, P. R. China.

|January 20, 2025

概括

一种新的热诱导可扩展和产生酸的临时堵塞剂 (TAPA) 提供了高效的水库形成堵塞和自我清除. 这种创新材料通过控制堵塞和随后的降解来提高井的生产率.

科学领域:

材料科学材料科学材料科学
石油工程是石油工程中的一个.
化学工程是化学工程的重要组成部分.

背景情况:

有效的临时堵塞和自拔对于优化水库形成操作至关重要.
现有的方法在实现有效的密封和随后的清洁清除,而不会损坏构成时可能面临挑战.

研究的目的:

开发和描述一个热诱导的可扩展和产生酸的临时堵塞剂 (TAPA) 用于水库构成.
评估TAPA在插塞效率,自拔能力和与钻井液体的兼容性方面的性能.

主要方法:

制备TAPA使用烯,甲酸,N,N-二甲基胺和丁烯酸作为外单体,以高沸点碳酸酸为核心.
塔帕的结构特征和性能评估,包括粒子大小,热膨胀温度,表面性能,剪切强度和密封能力.
评估TAPA在断裂和透的水库构成中的堵塞和自移试验中的性能,以及其与水性钻井液的兼容性.

主要成果:

TAPA具有球形结构 (D50 = 16.03μm),具有水友性,负电荷的表面,以及出色的密封性能.
在约160°C的容器温度下观察到的临时堵塞和自拔的最佳性能,膨胀发生在134.75°C至197.77°C之间.
TAPA在各种条件下 (盐度,pH,碳化合物) 显示出有效的堵塞和自去除,并与钻井液体显示出良好的兼容性,减少过损失.

结论:

开发的TAPA提供了一种有效的方法,用于临时堵塞和自拔水库.
自去除机制,涉及核心材料的酸水解,有效地降低了石油和天然气井的回流压力.
这项技术提供了一种通过改进形成管理来提高石油和天然气井生产率的新方法.

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