Mud return line Definition
A trough or pipe that is placed between the surface connections at the wellbore and the shale shaker and through which drilling mud flows upon its return to the surface from the hole. also called flow line.
Related Oil & Gas Terms
Bell nipple
A short length of pipe (a nipple) installed on top of the blowout preventer. the top end of the nipple is flared, or belled, to guide drill tools into the hole and usually has side connections for the fill line and mud return line....
Shaker tank
The mud tank adjacent to the shake shaker, usually the first tank in to which mud flows after returning from the hole. also called a shaker pit....
Conductor casing
Generally, the first string of casing in a well. it may be lowered into a hole drilled into the formations near the surface and cemented in place; or it may be driven into the ground by a special pile drive (in such cases, it is sometimes called drive pipe); or it may be jetted into...
Flow bean
A plug in the flow line at the well head which has a small hole drilled through it through which oil flows, and which keeps a well from flowing at too high a rate....
Pig
1. a flow line clearing device, pumped through the line with normal flow. 2. a scraping tool that is forced through a pipeline or flow line to clean out accumulations of wax, scale, and debris from the walls of the pipe. it travels with the flow of product in the line, cleaning the pipe walls...
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