|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Analysis of thermal and water management with temperature-dependent diffusion effects in membrane of proton exchange membrane fuel cells显示文摘 | WEI MON YAN FALIN CHEN HUNG-YI WU | 2004 | Journal of Power Sources2004，129，： | 1 |
| 2 | A bull-heading water control technique of thermo-sensitive temporary plugging agent显示文摘Aimed at the disadvantages of secondary damage to oil layers caused by the conventional bull-heading water control technique, a thermo-sensitive temporary plugging agent for water control was synthesized by water solution polymerization and applied in the field with a new secondary temporary plugging technique. The optimization and performance evaluation of thermo-sensitive temporary plugging agent were carried out through laboratory experiments. The optimized formula is as follows:(6%-8%) acrylamide +(0.08%-0.12%) ammonium persulfate +(1.5%-2.0%) sepiolite +(0.5%-0.8%) polyethylene glycol diacrylate. The thermo-sensitive temporary plugging agent is suitable for formation temperatures of 70-90 ?C, it has high temporary plugging strength(5-40 k Pa), controllable degradation time(1-15 d), the apparent viscosity after degradation of less than 100 m Pa?S and the permeability recovery value of simulated cores of more than 95%. Based on the research results, secondary temporary plugging technique was used in a horizontal well in the Jidong Oilfield. After treatment, the well saw a drop of water cut to 27%, and now it has a water cut of 67%, its daily increased oil production was 4.8 t, and the cumulative oil increment was 750 t, demonstrating that the technique worked well in controlling water production and increasing oil production. | LIU Pingde WEI Falin ZHANG Song ZHU Xiuyu WANG Longfei XIONG Chunming | 2018 | Petroleum Exploration and Development2018，45，3： | 0 |
| 3 | Characteristics and mechanism of smart fluid for sweep-controlling during CO_(2) flooding显示文摘A smart response fluid was designed and developed to overcome the challenges of gas channeling during CO_(2)flooding in low-permeability,tight oil reservoirs.The fluid is based on Gemini surfactant with self-assembly capabilities,and the tertiary amine group serves as the response component.The responsive characteristics and corresponding mechanism of the smart fluid during the interaction with CO_(2)/oil were studied,followed by the shear characteristics of the thickened aggregates obtained by the smart fluid responding to CO_(2).The temperature and salt resistance of the smart fluid and the aggregates were evaluated,and their feasibility and effectiveness in sweep-controlling during the CO_(2)flooding were confirmed.This research reveals:(1)Thickened aggregates could be assembled since the smart fluid interacted with CO_(2).When the mass fraction of the smart fluid ranged from 0.05%to 2.50%,the thickening ratio changed from 9 to 246,with viscosity reaching 13 to 3100 mPas.As a result,the sweep efficiency in low-permeability core models could be increased in our experiments.(2)When the smart fluid(0.5%to 1.0%)was exposed to simulated oil,the oil/fluid interfacial tension decreased to the level of 1×10^(-2)mN/m.Furthermore,the vesicle-like micelles in the smart fluid completely transformed into spherical micelles when the fluid was exposed to simulated oil with the saturation greater than 10%.As a result,the smart fluid could maintain low oil/fluid interfacial tension,and would not be thickened after oil exposure.(3)When the smart fluid interacted with CO_(2),the aggregates showed self-healing properties in terms of shear-thinning,static-thickening,and structural integrity after several shear-static cycles.Therefore,this fluid is safe to be placed in deep reservoirs.(4)The long-term temperature and salt resistance of the smart fluid and thickened aggregates have been confirmed. | XIONG Chunming WEI Falin YANG Haiyang ZHANG Song DING Bin LEI Zhengdong ZHANG Deping ZHOU Qiang | 2023 | Petroleum Exploration and Development2023，50，3： | 0 |
| 4 | Challenges and improvement in management of neonates born to mothers with COVID-19 in China显示文摘Objective:China was the first country suffering from the SARS-CoV-2 pandemic and one of the countries with stringent mother-neonate isolation measure implemented.Now increasing evidence suggests that coronavirus disease 2019(COVID-19)should not be taken as an indication for formula feeding or isolation of the infant from the mother.Methods:We conducted a retrospective cohort study in 44 hospitals from 14 provinces in China to investigate the management of neonates whose mothers have confirmed or suspected COVID-19.In addition,65 members of Chinese Neonatologist Association(CNA)were invited to give their comments and suggestions on the clinical management guidelines for high-risk neonates.Results:There were 121 neonates born to 118 mothers suspected with COVID-19 including 42 mothers with SARS-CoV-2 positive results and 76 mothers with SARS-CoV-2 negative results.All neonates were born by caesarean section,isolated from their mothers immediately after birth and were formula-fed.Five neonates were positive for SARSCoV-2 at initial testing between 36 and 46 h after birth.Regarding the confusion on the clinical management guidelines,58.78%of the newborns were put into isolation,32.22%were subject to PCR tests,and 5.16%and 2.75%received breastfeeding and vaccination,respectively.Conclusion:The clinical symptoms of neonates born to mothers with confirmed SARS-CoV-2 were mild,though five neonates might have been infected in utero or during delivery.Given the favorable outcomes of neonates born to COVID-confirmed mothers,full isolation may not be warranted.Rather,separation of the mother and her newborn should be assessed on a case-by-case basis,considering local facilities and risk factors for adverse outcomes,such as prematurity and fetal distress. | Jie Yang Zhuxiao Ren Lingkong Zeng Shiwen Xia Lin Wang Jiayu Miao Zhe Zhao Chuanzhong Yang Xiuyong Cheng Huayan Zhang Yuanfang Zhu Li Liu Xirong Gao Bin Yi Zhenlang Lin Wei Liu Xiaoyu Zhou Benqing Wu Ling Chen Zhankui Li Xuefeng Zhang Wei Lu Lianhong Zhang Xiao Chen Xiaoyun Zhong Falin Xu Jinhui Wu Yong Ji Jiahua Pan Yanxiang Chen Carine Ronsmans Zhichun Feng | 2022 | Frigid Zone Medicine2022，2，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员