高压电脉冲处理油层技术研究与应用

电脉冲技术消化和发展了前苏联的放电技术,部分关键技术有所创新,它将大容量高电压储能器积蓄的能量释放,形成频带较宽的巨大的脉冲波,作用于近井地层,并产生空化作用,将地层孔道中的堵塞物清除,造成微裂缝,从而改善油层近井地带的渗透性。经过现场应用,证明该技术可以有效地解除地层近井地带污染,达到增产增注的目的,而且投资少,见效快,施工简单,效益高。

RESEARCH AND APPLICATION OF RESERVOIR TREATING TECHNOLOGY BY PULSE DISCHARGE OF HIGH VOLTAGE CURRENT

This paper introduces the principle of reservoir treating technology by pulse discharge of high voltage current:the energy accumulated in the large capacity high voltage accumulator is released, and thus produces strong pulse wave with wider frequency band;the pulse wave influences the near wellbore formation, forms cavitation, removes the plugging materials in the pores and throats, results in microfractures, and thus improves the permeability of near wellbore format1on. This paper also introduces the field application of this technology, which indicates that the technology can effectively remove the near wellbore formation contamination and attain the goal of stimulating injectors and producers. The technology 1s also characterized by low investment, rapid effectiveness, simple construction and high benefit.