文中主要介绍了井下脉冲振动发生器的研制、原理及振动固井技术现场应用情况。
This paper mainly presents development and principle of downhole pulse vibration. The field application of vibration cementing technique is also discussed.
QDT MWD在使用中由于脉冲发生器充油不好掌握，常出现井下无信号现象。
Because the oil filling operation of the QDT MWD pulser is difficult to grasp, the logging signals often disappear when QDT MWD is used.
研制了一种适用于脉冲中子测井仪的井下全谱采集控制综合时序发生器和阳极高压变换器。
One kind of down-hole full-spectrum acquisition controlling sequence generator and anode high-voltage converter is synthesized, which is suitable for pulsed-neutron synthesized logging tool.
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