Synergistic effect of nanoparticles and viscoelastic surfactants to improve properties of drilling fluids  

作　　者：Yurany Villada Lady Johana Giraldo Carlos Cardona Diana Estenoz Gustavo Rosero Betiana Lerner Maximiliano S.Perez Masoud Riazi Camilo A.Franco Farid B.Cortes 

机构地区：[1]Grupo de Investigacion Fenomenos de Superficie Michael Polanyi,Departamento de Procesos y Energía,Facultad de Minas,Universidad Nacional de Colombia,Sede Medellin,050034,Medellin,Colombia [2]INTEC(Universidad Nacional del Litoral-CONICET),Guemes 3450,3000,Santa Fe,Argentina [3]Centro IREN,Universidad Tecnologica Nacional(UTN),Buenos Aires,1706,Argentina [4]Facultad Regional Haedo,Universidad Tecnológica Nacional(UTN),Haedo,Buenos Aires,1706,Argentina [5]Department of Electrical and Computer Engineering,Florida International University,Miami,FL,33174,USA [6]School of Mining and Geosciences,Nazarbayev University,Astana,Kazakhstan

出　　处：《Petroleum Science》2024年第6期4391-4404,共14页石油科学(英文版)

基　　金：funded by Fondo Francisco Jose de Caldas,MINCIENCIAS and Agencia Nacional de hidrocarburos(ANH)through contract No.112721-282-2023(Project 1118-1035-9300)with Universidad Nacional de Colombia-Sede Medellin and PAREX RESOURCES COLOMBIA AG SUCURSAL。

摘　　要：The conservation of rheological and filtration properties of drilling fluids is essential during drilling operations.However,high-pressure and high-temperature conditions may affect drilling fluid additives,leading to their degradation and reduced performance during operation.Hence,the main objective of this study is to formulate and evaluate a viscoelastic surfactant(VES)to design water-based drilling nanofluids(DNF).Silica nanomaterials are also incorporated into fluids to improve their main functional characteristics under harsh conditions.The investigation included:i)synthesis and characterization of VES through zeta potential,thermogravimetric analysis(TGA),Fourier transform infrared spectroscopy(FTIR),atomic force microscopy(AFM),and rheological behavior;ii)the effect of the presence of VES combined with silica nanoparticles on the rheological,filtration,thermal,and structural properties by steady and dynamic shear rheological,filter press,thermal aging assays,and SEM(SEM)assays,respectively;and iii)evaluation of filtration properties at the pore scale through a microfluidic approach.The rheological results showed that water-based muds(WBMs)in the presence of VES exhibited shearthinning and viscoelastic behavior slightly higher than that of WBMs with xanthan gum(XGD).Furthermore,the filtration and thermal properties of the drilling fluid improved in the presence of VES and silica nanoparticles at 0.1 wt%.Compared to the WBMs based on XGD,the 30-min filtrate volume for DNF was reduced by 75%.Moreover,the Herschel-Bulkley model was employed to represent the rheological behavior of fluids with an R2of approximately 0.99.According to SEM,laminar and spherical microstructures were observed for the WBMs based on VES and XGD,respectively.A uniform distribution of the nanoparticles was observed in the WBMs.The results obtained from microfluidic experiments indicated low dynamic filtration for fluids containing VES and silica nanoparticles.Specifically,the filtrate volume of fluids containing VES and VES with silica

关 键 词：MICROMODEL Nanofluids Silica nanoparticles Viscoelastic surfactants Water-based drillingfluids 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TE254[石油与天然气工程—油气井工程]