电脉冲解堵增注机理分析及应用
Analysis and Application of Electronic Pulse De-plugging and Injection-adding Mechanism
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- 引用格式:
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陆小兵,王守虎,隋蕾,皇甫荣.电脉冲解堵增注机理分析及应用[J].天然气与石油,2011,29(6):0.doi:
.Analysis and Application of Electronic Pulse De-plugging and Injection-adding Mechanism[J].Natural Gas and Oil,2011,29(6):0.doi:
- DOI:
- 作者:
- 陆小兵1 王守虎1 隋 蕾1 皇甫荣2
- 作者单位:
- 1.中国石油长庆油田公司超低渗透油藏研究中心，2.中国石油长庆油田公司第七采油厂
- 关键词:
- 电脉冲；解堵；水井增注；冲击波
Electric pulse； De-plugging； Water well injection； Shock wave
- 摘要:
- 长庆油田超低渗透油藏由于渗透率低、非均质性强，在注水开发过程中，注不进、注不够水井较多，对油田长期稳产带来很大影响，采用常规增注措施存在措施有效期短的问题，为此，在超低渗透油藏应用了电脉冲解堵增注技术。这是通过在井下电子脉冲装置，产生低频脉冲波作用于油层，液体中高压放电处理地层的一种技术，特点是利用电子脉冲装置产生的强大冲击波，解除近井地带污染，达到解堵、增注的目的。通过现场应用10口井，取得了较好的增注效果。
Due to ultra low permeability and strong heterogeneity in Changqing Oilfield reservoir， water can not be injected into many wells or enough water can not be injected in water injection development， which will result in serious effect on stable oil production for a long time. If adopted is the conventional measure for injecting more water into wells， its period of validity will be short. Therefore， adopted is the electronic pulse stimulation injection technique in ultra low permeability reservoir. In this technique， underground electronic pulse device generates low frequency pulse wave continuously， the pulse wave acts on oil layer and generates high voltage discharge in reservoir liquid to treat stratum. The characteristic of this technique is usage of electronic pulse device to generate powerful shock wave and relieve pollution in near well-bore area in order to de-plug and increase water injection. Field application in ten wells shows that water injection effect is good.
