- 行业: Oil & gas
- Number of terms: 8814
- Number of blossaries: 0
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The difference in hydrostatic head between the pump depth and the dynamic fluid level above the pump. The pump submergence is continuously monitored to adjust the pump flow rate and avoid a pump-off condition.
Industry:Oil & gas
The difference in gas volume registered using two different meters.
Industry:Oil & gas
The difference between the average reservoir pressure and the flowing bottomhole pressure.
Industry:Oil & gas
The difference between the average velocities of two different fluids flowing together in a pipe. In vertical ascending flow, the lighter fluid flows faster than the heavier fluid. The slip velocity depends mainly on the difference in density between the two fluids, and their holdups.
Industry:Oil & gas
The difference between the maximum load reached in the upstroke and the minimum load registered in the downstroke.
Industry:Oil & gas
The difference between the true value and that which is reported from a measurement.
Industry:Oil & gas
The device used to store and transport a coiled tubing string ready for use at the wellsite. The coiled tubing reel incorporates a manifold and swivel arrangement to enable fluids to be pumped through the coiled tubing string at any time, a levelwind assembly to ensure the string is correctly spooled and a treatment system to apply inhibitor or similar protective coatings to the coiled tubing string. The reel functions are hydraulically powered and controlled from the unit control cabin.
Industry:Oil & gas
The device used in early logging to record logging measurements on photographic film. The camera consisted of a light shining on galvanometers, which reflected the light to produce a trace on one or more films. The galvanometers deflected according to the log measurement to give the log reading. The films were turned by the depth wheel, which gave the depth axis of the log.
Industry:Oil & gas
The device used to inject ball sealers into the treatment fluid as it is pumped through the surface treating lines.
Industry:Oil & gas
The device that connects the end of the logging cable or the bridle to the top of the logging tool. It contains the weak point, so that when the weak point is broken and the cable removed, the uppermost assembly left in the hole is the head. The top of the head is specially designed to ease fishing of the logging tool, and is also known as the fishing bell.
Industry:Oil & gas
