Try to turn the compressor by hand. It should be possible to turn it around. It should turn around smoothly, without any ‘hiccups’ (be sure to completely shut down the air compressor!). Check the isolation of the motor winding.
[pdf] Drill bits wear and tear like most any other piece of equipment. Once a bit becomes too worn to drill at an adequate rate or make a full-gauge hole, or if the bearings are thought to be near failure, a trip is undertaken to replace the bit. A trip is not considered a bit trip when the purpose of replacing the bit is to change sizes. This is only done when the crew "sets surface, intermediate or longstring. OverviewTripping pipe (or "Making a round trip" or simply "Making a trip") is the physical act of pulling the out of the and then running it back in. This is done by physically breaking out or disconnecting (when pulli. .
A fishing trip is when a crew is forced to trip pipe to retrieve loose items in the . This can result from something being dropped in the hole, i.e. a tool, that would cause damage to the bit if the crew attempted t. The process of pulling the drillstring out of the wellbore for the purpose of changing a worn or underperforming drill bit.
[pdf] We have already seen that mud will be displaced from the hole as we run a pipe into the hole. Furthermore, it will go to the trip tank, and as a result, the trip tank volume will go up. The driller will calculate how much the volume should go up and will check this against how much the actual increase is. The pipe. .
The driller will run the above calculations for the drill pipe, Heavy weight drill pipes & Drill Collars that RIH and record them on a drilling trip sheet. During pipe tripping, the driller will then. .
Trip sheets form may differ between oil and gas companies, but in the end, it will look like this: In this example, note how the length per 5.
[pdf] 
