Preliminary Study on High-Energy Pulsed Arc Fracturing
-
摘要: 为了掌握高能电弧脉冲压裂技术的基本原理，研究影响其压裂效果的关键参数，进行了高能电弧脉冲压裂理论分析和室内试验。理论分析可知，高能电弧脉冲压裂所产生的冲击波压力与放电电压、脉冲能量和放电时间有关。室内试验显示，电弧压力脉冲能在混凝土试样中的模拟井筒的井壁上造成裂缝，裂缝呈径向分布，在近井筒区域无明显弯曲。试验结果表明，在高能电弧脉冲压裂中，随着放电电压和单次能量的增高，产生的脉冲压力峰值会增大，造成的电弧脉冲裂缝的缝高和缝长也会增大。研究结果为进一步进行高能电弧脉冲压裂提供了试验数据。Abstract: In order to get a better understanding of the principle of high-energy pulsed arc fracturing,determine key factors affecting its fracturing results,theoretical analysis and lab experiment were conducted for high-energy pulsed arc fracturing.The theoretical analysis indicates that the pulse wave pressure produced in high-energy pulsed arc fracturing depends on the discharging voltage,pulse energy and discharging time.Lab experiment shows that obvious fractures around the wellbore in concrete samples can be created by using different discharging voltages,the fractures are radial with no obvious bending in near wellbore area.The testing results show that the pulse pressure peak will increase with the increase of discharging voltage and pulse energy,and the fracture height and length will also increase.The research results provide testing data for further high-energy pulsed arc fracturing.
-
-
[1] Melton N M, Theodore S C.Fracturing oil shale with electricity[J].Journal of Petroleum Technology, 1968, 20(1):37-41.
[2] Mao Ronghai, de Pater Hans J, Leon Jean Francois, et al.Experiments on pulse power frcturing[R].SPE 153805, 2012.
[3] Leon Jean-Francois J, Fram J H.Pulse fracturing device and method:US, 8220537 B2.2012-07-07.
[4] 班志强, 姚建豪, 补福.井下低频电脉冲技术在河南油田的应用[J].测井技术, 2002, 26(3):238-241. Ban Zhiqiang, Yao Jianhao, Bu Fu.Application of downhole low frequency electric pulse vibrotechnique in Henan Oilfield[J].Well Logging Technology, 2002, 26(3):238-241. [5] 易兵, 董启山, 董瑞春, 等.吉林油田大功率直流电场强化采油技术研究进展[J].地球物理学进展, 2006, 21(3):898-901. Yi Bing, Dong Qishan, Dong Ruichun, et al.The advance of Jilin Oilfield strengthening recovery technology by powerful direct current electric field[J].Progress in Geophysics, 2006, 21(3):898-901. [6] 秦曾衍, 左公宁, 王永荣, 等.高压强脉冲放电及其应用[M].北京:北京工业大学出版社, 2000:1-8. Qin Cengyan, Zuo Gongning, Wang Yongrong, et al.High voltage pulse discharge and its application[M].Beijing:Beijing University of Technology Press, 2000:1-8. -
期刊类型引用(4)
1. 付荣耀，孙鹞鸿，刘坤，高迎慧，徐旭哲，严萍. 大水泥岩样的电脉冲压裂实验研究. 强激光与粒子束. 2018(04): 131-135 . 
百度学术
2. 光新军，王敏生. 电弧等离子技术在石油工程中的应用前景. 石油钻采工艺. 2017(01): 119-124 . 百度学术
3. 付海峰，张永民，王欣，严玉忠，管保山，刘云志，梁天成，翁定为. 基于脉冲致裂储层的改造新技术研究. 岩石力学与工程学报. 2017(S2): 4008-4017 . 百度学术
4. 付荣耀，孙鹞鸿，樊爱龙，高迎慧，严萍，周健. 高压电脉冲在页岩气开采中的压裂实验研究. 强激光与粒子束. 2016(07): 192-196 . 百度学术
其他类型引用(3)
计量
- 文章访问数: 2746
- HTML全文浏览量: 93
- PDF下载量: 3570
- 被引次数: 7
下载:
