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Study on the hydrate inhibition effect of nano-silica in drilling fluids

文献类型：期刊论文

作者He, Yong1,2,3,4; Zhou, Xuebing1,2,3,4; Shi, Lingli1,2,3,4; Long, Zhen1,2,3,4; Lu, Jingsheng1,2,3,4; Liang, Deqing1,2,3,4
刊名JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
出版日期2022-09-01
卷号105页码:8
关键词Gas hydrate Drilling fluid Hydrate inhibitor Nano -silica Equilibrium
ISSN号1875-5100
DOI10.1016/j.jngse.2022.104688
通讯作者Zhou, Xuebing(zhouxb@ms.giec.ac.cn) ; Lu, Jingsheng()
英文摘要Preventing hydrate crystallization in drilling fluid is the key to ensure the safety of deep water drilling. In this work, hydrate inhibition effect of nano-silica in deep water drilling fluids was measured and compared with the typical hydrate inhibitors containing KCl-PVP and EG-PVP. The three phase equilibrium and the formation kinetics of CH4 hydrate in the drilling fluids were measured. The micro-morphological features of the formed hydrates were observed by SEM. Results showed that EG-PVP drilling fluid was found to have the best thermodynamic inhibition effect on CH4 hydrate where the deviation of the equilibrium pressure in EG-PVP drilling fluid and pure water was initially 2 MPa as the temperature was below 5 degrees C and increased up to about 5 MPa when the temperature was 10 degrees C. Nano-silica had almost no thermodynamic inhibition performance on CH4 hydrate. Kinetic measurements revealed that EG-PVP and KCl-PVP drilling fluids prolonged the hydrate nucleation to more than 48 h, but failed to remain the hydrate inhibition effect after aging tests. Nano-silica was unable to prolong the nucleation time, but was effective in reducing the initial hydrate growth rate and less affected by aging tests. SEM images revealed that nano-silica prevented phase separation in hydrate growth and induced the CH4 hydrate to form a spongy-like structure which was fragile in agitated drilling fluid. Therefore, nano-silica could be viewed as a potential synergist of hydrate inhibitors.
WOS关键词GAS-HYDRATE ; METHANE HYDRATE ; KINETIC MEASUREMENTS ; AQUEOUS-SOLUTIONS ; FLOW ASSURANCE ; XANTHAN GUM ; WATER ; DISSOCIATION ; CO2 ; POLYACRYLAMIDE
资助项目National Natural Science Foundation of China[41406103] ; National Natural Science Foundation of China[51876211] ; Fund of the Key Laboratory of Gas Hydrate, Chinese Academy of Sciences[E029020401] ; Natural Science Foundation of Guangdong Province[2020A1515010374] ; Natural Science Foundation of Guangdong Province[2021A1515110698] ; Key-Area Research and Development Program of Guangdong Province[2020B111101000403] ; Guangdong Special Support Program-Local innovation and entrepreneurship team project[2019BT02L278]
WOS研究方向Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000861775700002
出版者ELSEVIER SCI LTD
资助机构National Natural Science Foundation of China ; Fund of the Key Laboratory of Gas Hydrate, Chinese Academy of Sciences ; Natural Science Foundation of Guangdong Province ; Key-Area Research and Development Program of Guangdong Province ; Guangdong Special Support Program-Local innovation and entrepreneurship team project
源URL[http://ir.giec.ac.cn/handle/344007/37379]  
专题中国科学院广州能源研究所
通讯作者Zhou, Xuebing; Lu, Jingsheng
作者单位1.State Key Lab Nat Gas Hydrate, Beijing 100028, Peoples R China
2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
3.CAS Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China
4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
推荐引用方式
GB/T 7714		 He, Yong,Zhou, Xuebing,Shi, Lingli,et al. Study on the hydrate inhibition effect of nano-silica in drilling fluids[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2022,105:8.
APA He, Yong,Zhou, Xuebing,Shi, Lingli,Long, Zhen,Lu, Jingsheng,&Liang, Deqing.(2022).Study on the hydrate inhibition effect of nano-silica in drilling fluids.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,105,8.
MLA He, Yong,et al."Study on the hydrate inhibition effect of nano-silica in drilling fluids".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 105(2022):8.

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来源：广州能源研究所

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