Imperial College London
Alternate

prof paul f. luckham

Faculty of Engineering, Department of Chemical Engineering

Professor in Particle Technology
 
 
 
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Contact

 

+44 (0)20 7594 5583p.luckham01 Website

 
 
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Assistant

 

Miss Jessica Baldock +44 (0)20 7594 5699

 
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Location

 

104Roderic Hill BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Yang:2019:10.1021/acs.iecr.9b01714,
author = {Yang, L and Wang, T and Yang, X and Jiang, G and Luckham, PF and Xu, J and Li, X and Ni, X},
doi = {10.1021/acs.iecr.9b01714},
journal = {Industrial and Engineering Chemistry Research},
pages = {9795--9805},
title = {Highly stabilized foam by adding amphiphilic Janus particles for drilling a high-temperature and high-calcium geothermal well},
url = {http://dx.doi.org/10.1021/acs.iecr.9b01714},
volume = {58},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Fabricating Janus particles that consist of two distinct functional regions is an intriguing research topic. In this study, wax colloidosomes were successfully prepared by the Pickering emulsion method. After hydrophilic modification with an amino-containing silane agent and separate hydrophobic modification with several silane coupling agents with different carbon chain lengths, a series of Janus particles that differed in their hydrophilic lipophilic balance were facilely fabricated. The results show that the (3-aminopropyl)triethoxysilane-SiO2-dodecyltrimethoxysilane (NH2-SiO2-12C) Janus particles possess the best foam stability. As a result of their suitable contact angle of 80°, high positive ζ-potential, and good surface activity, these foams display the characteristics of low surface tension, high dilational elasticity, nonspherical shapes, large sizes, and thick films, which together result in the extension of the drainage half-life of the foam from 448 to 778 s in comparison with the foam of pure foaming agent solutions. Moreover, compared with a foam with no stabilizer or those stabilized by a soluble foam stabilizer and homogeneous hydrophobic-modified silica particles, NH2-SiO2-12C-stabilized foam can extend the drainage half-life to 668 s after hot rolling for 16 h at 280 °C and resist a CaCl2 concentration of 0.8 wt %. Benefiting from their excellent thermal stability and salt tolerance, these Janus particles are expected to be promising candidates for use as foam stabilizers in high-temperature and high-calcium conditions, including drilling, enhanced oil recovery, “waterless” fracturing, and, especially, in geothermal wells.
AU  - Yang,L
AU  - Wang,T
AU  - Yang,X
AU  - Jiang,G
AU  - Luckham,PF
AU  - Xu,J
AU  - Li,X
AU  - Ni,X
DO  - 10.1021/acs.iecr.9b01714
EP  - 9805
PY  - 2019///
SN  - 0888-5885
SP  - 9795
TI  - Highly stabilized foam by adding amphiphilic Janus particles for drilling a high-temperature and high-calcium geothermal well
T2  - Industrial and Engineering Chemistry Research
UR  - http://dx.doi.org/10.1021/acs.iecr.9b01714
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000471835000005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/81372
VL  - 58
ER  -
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