دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n pi: the equipment included in the drilling fluid circulating system of a rotary rig. Basically, the components consist of the mud pump, the rotary hose, the swivel, the drill stem, the bit, and the mud return line.

n: Mainly including mud pump, revolving drilling hose, swivel, drill string, bit and mud return line.

n: the curved connection between the rotary hose and the swivel. See swivel. GOR abbr: gas-oil ratio.

n: a valve installed at one or both ends of the kelly. When a high-pressure backflow occurs inside the drill stem, the valve is closed to keep pressure off the swivel and rotary hose. See lower kelly cock, upper kelly cock.

n: a valve installed between the kelly and the swivel,it is used to control a backflow of fluid up the drill string and isolate the swivel and hose from high pressure.

the valve on the Kelly.

n: see rotary hose.

n: A large-diameter (3- to 5-in. inside diameter),high-pressure flexible line used to connect the standpipe to the swivel. This flexible piping arrangement permits the kelly (and, in turn, the drillstring and bit) to be raised or lowered while drilling flui

n: also called kelly hose or rotary hose. See rotary hose.

n: see drilling hose.

n: a steel-reinforced, flexible hose that is installed between the standpipe and the swivel or top drive. It conducts drilling mud from the standpipe to the swivel or top drive. Also called the kelly hose or the mud hose.

n: a reinforced flexible tube that conducts drilling fluid from the standpipe to the swivel. also calledkelly hose or mud hose.

the connection from the mud pump to the stand pipe. Also called the mud hose or kelly hose.

n: in a top drive, the S-shaped pipe that incorporates a gooseneck to which the rotary hose is attached. It conducts drilling mud into the top drive from the rotary hose. See top drive.

n: a vertical pipe rising along the side of the derrick or mast, which joins the discharge line leading from the mud pump to the rotary hose and through which mud is pumped into the hole.

n: A rigid metal conduit that provides the high-pressure pathway for drilling mud to travel approximately one-third of the way up the derrick, where it connects to a flexible high-pressure hose (kelly hose). Many large rigs are fitted with dual standpipes so

the pipe in the derrick that delivers mud to the kelly hose.

n: a rotary tool that is hung from the hook and the traveling block to suspend and permit free rotation of the drill stem. It also provides a connection for the rotary hose and a passage- way for the flow of drilling fluid into the drill stem.

n: A mechanical device that must simultaneously suspend the weight of the drillstring, provide for rotation of the drillstring beneath it while keeping the upper portion stationary, and permit high-volume flow of high-pressure drilling mud from the fixed por