[1]张世锋,王 相,崔新颖,等.基于改进理想充填理论的堵漏颗粒粒度分布设计方法[J].常州大学学报(自然科学版),2021,33(03):54-59.[doi:10.3969/j.issn.2095-0411.2021.03.007]
　ZHANG Shifeng,WANG Xiang,CUI Xinying,et al.Modified Ideal Packing Theory to Optimize Size Distribution of Plugging Particle for Fracture Lost Circulation Control[J].Journal of Changzhou University(Natural Science Edition),2021,33(03):54-59.[doi:10.3969/j.issn.2095-0411.2021.03.007]
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基于改进理想充填理论的堵漏颗粒粒度分布设计方法()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第33卷
期数:
2021年03期
页码:
54-59
栏目:
石油及天然气工程
出版日期:
2021-05-28

文章信息/Info

Title:
Modified Ideal Packing Theory to Optimize Size Distribution of Plugging Particle for Fracture Lost Circulation Control
文章编号:
2095-0411(2021)03-0054-06
作者:
张世锋;  王 相;  崔新颖;  张 浩;  洪 展
(常州大学 石油工程学院, 江苏 常州 213164)
Author(s):
ZHANG Shifeng;  WANG Xiang;  CUI Xinying;  ZHANG Hao;  HONG Zhan
(School of Petroleum Engineering, Changzhou University, Changzhou 213164, China)
关键词:
裂缝性地层;  漏失;  颗粒粒度分布;  理想充填;  紧密堆积
Keywords:
fractured formation;  lost circulation;  particle size distribution;  ideal filling;  close packing
分类号:
TK 8
DOI:
10.3969/j.issn.2095-0411.2021.03.007
文献标志码:
A
摘要:
裂缝性地层堵漏架桥颗粒的粒度分布直接决定其堵漏效果, 而现有方法无法根据裂缝尺寸进行全粒径范围堵漏颗粒粒度分布的设计。基于离散颗粒紧密堆积原理, 对理想充填理论进行了改进, 可根据裂缝尺寸计算全粒径范围多级离散有效封堵颗粒的粒度分布。利用改进后的理论针对5 mm及3 mm裂缝进行了堵漏颗粒粒度分布设计, 并进行了静态裂缝堵漏效果评价。结果表明, 利用改进后理想充填理论设计粒度分布, 使用石英砂或核桃壳均能够有效封堵5 mm裂缝, 且较改进前封堵层体积更小, 漏失量更低, 堵漏效果更好; 针对5 mm及3 mm裂缝利用改进后理论设计粒度分布的核桃壳颗粒能够有效封堵最大裂缝及低于该裂缝尺寸的其他裂缝, 说明该理论可用于多尺度裂缝地层的堵漏材料设计。
Abstract:
The grain size distribution of bridging particles can determine the plugging effect in fractured formation, but the existing methods cannot design the size distribution of plugging particles over the whole particle size range according to the fracture size. Based on the Horsefield principle of particles dense packing, the ideal filling theory is improved. The particle size distribution of multi-stage discrete effective plugging particles in the whole particle size range can be calculated according to the fracture size. With the improved theory, the size distribution of bridging particles for 5 mm or 3 mm fractures was designed, and the fracture plugging effect was evaluated. The results show that, with improved ideal filling theory to design the size distribution, 5 mm fracture can be sealed using quartz sand or walnut shell as the bridge plugging particles, and the plugging effect is better than that of before the improvement with smaller volume of sealing layer, lower amount of the lost circulation. In addition, for 5 mm or 3 mm fractures, the bridge plugging walnut shell particles with size distribution designed with the improved theory can effectively block the corresponding fractures and those with lower size, indicating this theory can be used to design plugging particle size distribution in multi-scale fracture formations.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-10-26。
基金项目:国家自然科学基金资助项目(52004037); 中国石油科技创新基金研究项目(2019D-5007-0307); 江苏省自然科学基金资助(BK20190930); 江苏省高等学校自然科学研究面上项目(19KJB440003)。
作者简介:张世锋(1987—), 男, 山东济南人, 博士, 副教授。E-mail: shifeng@cczu.edu.cn
更新日期/Last Update: 1900-01-01