摘要：In this study, a nanobiocatalyst [伪-amylase/纬-aminopropyltriethoxysilane-modified silica nanoparticles (A-SNPs)] was prepared for efficient mudcake removal and reservoir damage control during horizontal drilling and openhole completion. The molecular structure, thermal stability, and colloidal properties of the nanobiocatalyst were characterized by using FTIR, TGA, particle size, zeta potential, SEM, and TEM tests. The results confirmed that A-SNPs were securely encapsulated on the surface of 伪-amylase via covalent imine bonding (C鈺怤), significantly enhancing the stability of 伪-amylase. Mudcake and polymer plugging removal experiments demonstrated that soaking mudcake in a 1% nanobiocatalyst solution for 4 h reduced the filtrate return time to under 10 min. Additionally, polymer removal efficiency exceeded 63.17% at 500 psi. Core flow experiments combined with NMR analysis revealed that the nanobiocatalyst effectively mitigated permeability damage at 95 掳C, achieving a core permeability restoration value of 82.88%. The nanobiocatalyst significantly reduced the fluid flow resistance and improved hydrocarbon availability within the reservoir porous medium. In conclusion, nanobiocatalysts have great potential for application in oil and gas drilling and hydrocarbon recovery. 漏 2024 American Chemical Society.

ISSN号：0887-0624

卷、期、页：卷38期16：15194-15203

发表日期：2024-07-25

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：Energy and Fuels

参与作者：王歌

通讯作者：杨俊,黄胜铭,宜镜天,冯奇

第一作者：蒋官澄,董腾飞,贺垠博,杨丽丽

论文类型：期刊论文

论文概要：杨俊,蒋官澄,黄胜铭,宜镜天,董腾飞,贺垠博,杨丽丽,冯奇,王歌，Nanobiocatalyst Based on Enzyme Immobilization for Mudcake Removal and Reservoir Damage Control，Energy and Fuels，2024，卷38期16：15194-15203

论文题目：Nanobiocatalyst Based on Enzyme Immobilization for Mudcake Removal and Reservoir Damage Control