دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: one of several steel rods used to connect pump jacks to a central power source.

n: a wire rope used to connect a pump jack to a pull rod.

n: a surface unit similar to a pumping unit but having no individual power plant. Usually, several pump jacks are operated by pull rods or cables from one central power source. Commonly, but erroneously, beam pumping units are called pump jacks. Compare beam pumping unit.

the main rocking unit of a rod pumped well. Older uses were in central power units.

v: 1. to pull rods and tubing from a well at the same time-for example, when the pump is stuck. Tubing must be shipped over the rods a joint at a time, and the exposed sucker rod is then backed off and removed. 2. to move the drill stem, tubing, and other tools into or out of the hole with the well closed in. If the weight of the pipe is sufficient to overcome the upward force of well pressure, then the pipe can be shipped in. Compare snub.