Wu Jinqiao
Xi'an Jiaotong University
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Publication
Featured researches published by Wu Jinqiao.
Chinese Journal of Geochemistry | 2006
Wu Jinqiao; Zhang Ning-sheng; Wu Xinmin; Liu Xiaojuan
During fracturing treatment for low-temperature, shallow and high freezing point oil reservoirs, the first-line problems are to overcome uncompleted breakdown, uncompleted cleanup of fracturing fluids and cold damages to the formations by injecting cold fluid. To avoid those problems, it is suggested to adopt a new encapsulated heat-generating hydraulic fracturing fluid system as described in this paper.Firstly, two kinds of chemical heat-generating systems were studied and the NH4Cl-NaNO2 system was selected. According to the reaction characteristics of the system, oxalic acid was chosen as a catalyst of reaction and encapsulated using ethyl cellulose and paraffin as coating materials by the phase separation method. Compatibility of NH4Cl-NaNO2-encapsulated oxalic acid with hydroxypropyl-guar fracturing fluid was also discussed in the paper. The results showed that the hydraulic fracturing fluid containing encapsulated heat-generating agents hare a good stability and compatibility. When the fracturing fluid contains 2.0 mol · L−1 NH4Cl-NaNO2, 0.93% encapsulated oxalic acid and 0.08% ammonium persulfate, the peak temperature can reach 78.0°C and the viscosity of residual liquid is 3.12 mPa · s after 4 hours.During fracturing treatment for low-temperature, shallow and high freezing point oil reservoirs, the first-line problems are to overcome uncompleted breakdown, uncompleted cleanup of fracturing fluids and cold damages to the formations by injecting cold fluid. To avoid those problems, it is suggested to adopt a new encapsulated heat-generating hydraulic fracturing fluid system as described in this paper.
Archive | 2014
Wang Xiangzeng; Lei Xiaolan; Wu Jinqiao; Shen Feng; Duan Yuxiu; Guo Qing; Zhang Juntao; Gao Zhiliang; Zhu Rongting
Archive | 2014
Wang Xiangzeng; Gao Ruimin; Shen Feng; Wu Jinqiao; Guo Qing; Zhang Juntao; Qiao Hongjun; Gao Zhiliang; Duan Yuxiu; Ding Haoming; Liang Xiaobing; Sun Xiao; Jing Feng
Archive | 2015
Gao Zhiliang; Gao Ruimin; Nan Beibei; Lyu Lei; Wu Jinqiao; Shen Feng; Liu Li; Yang Zhigang; Zhang Juntao; Qiao Hongjun; Guo Qing; Wu Qian; Sun Xiao; Duan Yuxiu; Liang Xiaobing; Li Yanlin; Jing Feng
Archive | 2015
Zhang Juntao; Wu Jinqiao; Shen Feng; Li Wei; Sun Xiao; Gao Zhiliang; Duan Yuxiu; Zhang Fengsan; Guo Qing; Jing Feng; Zhan Zhuanying; Lei Ru; Wang Weigang; Yang Xianlun
Archive | 2015
Wu Jinqiao; Lei Xiaolan; Gao Ruimin; Gao Zhiliang; Qiao Hongjun; Zhang Juntao; Duan Yuxiu; Zhu Rongting; Liang Xiaobing; Shen Feng
Archive | 2015
Sun Xiao; Qiao Hongjun; Gao Zhiliang; Liang Xiaobing; Wu Qian; Wu Jinqiao; Shen Feng
Archive | 2015
Gao Ruimin; Lei Xiaolan; Wu Jinqiao; Zhu Rongting; Duan Yuxiu; Qiao Hongjun; Li Pei; Zhan Zhuanying; Gao Zhiliang; Liang Xiaobing
Archive | 2014
Gao Ruimin; Sun Xiao; Qiao Hongjun; Shen Feng; Wu Jinqiao; Duan Yuxiu; Gao Zhiliang; Guo Qing; Jing Feng; Zhang Juntao; Liang Xiaobing; Zhan Zhuanying
Archive | 2014
He Jing; Gao Ruimin; Wang Chengda; Wu Jinqiao; Cheng Yuqun; Yang Zhigang; Zhan Zhuanying; Wen Fenggang; Zhao Liang; Zhou Pu; Gu Jinghua; Fan Haokun; Nan Beibei