Study on the relationship between structure and performance of HPAM-based high viscosity friction reducer

IF 2.3 4区化学 Q3 CHEMISTRY, PHYSICAL Colloid and Polymer Science Pub Date : 2024-12-18 DOI:10.1007/s00396-024-05361-9

Cheng Jin, Neng Yi, Chengjian Nie, Pingya Luo, Di Pu, Yongjun Guo

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Abstract

Hydrolyzed Polyacrylamide (HPAM) is widely used as a high-viscosity friction reducer (HVFR) in unconventional oil and gas reservoir fracturing. However, the relationship between the molecular structure of HPAM and its drag reduction, proppant transport, and shear resistance properties under 5 ~ 20 mPa·s is unclear. To address this issue, the relationship between molecular structure and performance of HPAM solution is studied. The drag reduction study indicates that higher molecular weights of HPAM are associated with poorer drag reduction performance as viscosities above 15 mPa·s. For optimal drag reduction, the hydrolysis degree of HPAM should be maintained between 15 and 26%. The Proppant transport study shows that an increase in hydrolysis degree enhances proppant transport capabilities, but further increases beyond 33% result in diminishing improvements. The shear resistance study reveals that as the hydrolysis degree increases, shear resistance initially decreases and then increases, with the worst shear resistance observed at a hydrolysis degree of 33%.

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hpam基高黏度减摩擦剂结构与性能关系的研究

水解聚丙烯酰胺（HPAM）作为一种高粘度减阻剂（HVFR）在非常规油气藏压裂中得到了广泛应用。但在5 ~ 20 mPa·s范围内，HPAM的分子结构与其减阻、支撑剂输运、抗剪切性能之间的关系尚不清楚。为了解决这一问题，研究了HPAM溶液的分子结构与性能之间的关系。减阻研究表明，黏度大于15 mPa·s时，HPAM分子量越大，减阻性能越差。为达到最佳减阻效果，HPAM的水解度应保持在15% ~ 26%之间。支撑剂输运研究表明，增加水解度可以增强支撑剂的输运能力，但进一步增加到33%以上，其改善效果就会减弱。抗剪能力研究表明，随着水解程度的增加，抗剪能力先减小后增大，水解程度为33%时抗剪能力最差。图形抽象

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来源期刊

Colloid and Polymer Science 化学-高分子科学

CiteScore

4.60

自引率

4.20%

发文量

111

审稿时长

2.2 months

期刊介绍： Colloid and Polymer Science - a leading international journal of longstanding tradition - is devoted to colloid and polymer science and its interdisciplinary interactions. As such, it responds to a demand which has lost none of its actuality as revealed in the trends of contemporary materials science.