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徐旭哲,孙鹞鸿.深井电脉冲压裂装置研制[J].电源学报,2017,15(5):165-168,180
深井电脉冲压裂装置研制
Design of Electric Pulse Fracturing Device in Deep Well
投稿时间:2015-12-10  修订日期:2016-04-14
DOI:10.13234/j.issn.2095-2805.2017.5.165
中文关键词:  电脉冲压裂  水中放电  油气藏增产
英文关键词:electric pulse  discharge in water  oil-gas reservoir stimulation
基金项目:国家自然科学基金资助项目(51577176)
作者单位E-mail
徐旭哲 中国科学院电工研究所, 北京 100190;中国科学院电力电子与电气驱动重点实验室, 北京 100190  
孙鹞鸿 中国科学院电工研究所, 北京 100190;中国科学院电力电子与电气驱动重点实验室, 北京 100190 yhsun@mail.iee.ac.cn 
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中文摘要:
      研制了一种用于油气藏增产增注的深井电脉冲压裂装置。装置通过馈电电缆下放至2 000 m到3 000米m的深井中进行工作。考虑到馈电电缆耐压和分布参数的影响,高压充电电源采用两级升压,工作频率为1 kHz;储能元件采用同轴型高储能密度脉冲电容器总储能为5 kJ(25 kV)。通过测试得到工作电压22 kV时放电电流约为30 kA。初步实验表明,研制的深井电脉冲压裂装置在额定电压下可以连续稳定工作2 000次以上。
英文摘要:
      In this paper, a new type of electric pulse punching device for increasing the injection of oil and gas in deep wells is developed. The device is carried out by feeding cable in a deep well of 2 000 m to 3 000 m.Considering the influence of the voltage and the distribution parameters of the feed cable, the high voltage charging power supply adopts the two stage boost mode whose working frequency is 1 kHz. A high energy storage density pulse capacitor with a total storage capacity of 5 kJ(25 kV) is used as the energy storage element. The discharge current under the condition of 22 kV is obtained by the test, and the discharge current was about 30 kA. The preliminary experiment shows that the electric pulse punching device for deep wells can be continuously and stably for more than 2 000 times under the rated voltage condition.
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