By using a wave generator, the self -exciting pressure waves can be generated when well pumping unit works.

抽油井正常工作时，借助波动器可在井底产生自激压力波。

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In view of the selection of measuring projects and methods for distributed oil well pumping units, the comparative research is stated.

针对分散式抽油机井测量项目和测量方式的选取，提出比较性研究。

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In this paper, the compositions, working principles and its advantages and shortcomings of automatic control system for a single-well pumping installation are presented.

本文介绍单井自动控制抽油装置的组成、工作原理及其优缺点。

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The effort, called a "top kill, " involved plugging the ruptured deep-sea well by pumping heavy drilling fluid into it from the surface, nearly a mile above.

CNN: First criminal charges filed in BP oil spill

Depending on its location, "any disposal well that's been pumping stuff into the ground for months can cause earthquakes, " said Armbruster, who's studied earthquakes and drilling for 40 years.

CNN: Debate over fracking, quakes gets louder

The Federal Reserve has cranked up the bubble-machine again, pumping up opportunities as well as risk.

FORBES: Roll Out The Bubbles, We'll Have A Barrel Of Fun (For A While)