NOV NATIONAL OIL VARCO MDL ST 120 ROUGHNECK / HYDRAULIC PIPE SEGMENT MANIPULATOR

Description

NOV NATIONAL OIL VARCO MODEL ST 120 ROUGHNECK / PIPE SEGMENT MANIPULATOR
PLEASE CONTACT JIM FOR MORE INFO 7146121480  TNT INDUSTRIAL
Drilling Contractor
attended a demonstration of
National Oilwell Varco
’s (NOV) ST-120 iron roughneck at one of its Houston manufacturing facilities in late September. The tool features 120,000 ft-lbs of maximum breakout torque and a full 12 ft of extended reach on a trackless design for enhanced safety.
The ST-120 can be run in manual mode or the optional automatic mode, and the latter can be controlled from the driller’s control console or from a handheld wireless remote control. “If it’s in auto mode, none of the manual functions will work. If it’s in manual mode, none of the auto functions will work,” explained
Craig Brooks
, drillfloor tools product line manager for NOV. “It forces them to make a decision… The goal is to make sure only one person is operating it and only one person is in control to help reduce injuries.”
The tool also uses sensors to detect if someone accidentally steps into the operating space. “It automatically shuts down, and you cannot restart it unless you go out and hit one of three emergency stop buttons on the machine,” Mr Brooks said. “It forces you to go out to the tool and make sure nobody is in harm’s way before you start the tool up again.”
The first ST-120 unit was sold in 2007 and went into operation in 2008. Approximately 60 units have been sold to date, mostly going to newbuild drilling rigs under construction in shipyards. To facilitate the installation process, NOV tested all software internally before shipping the first unit. “We ran through any bugs here rather than at the shipyard, and we had almost no issues in installation,” Mr Brooks said
Iron roughneck
An iron roughneck is a piece of hydraulic machinery used to "handle" segments of pipe in a modern drilling rig. The segments can be manipulated as they are hoisted into and out of a borehole. This type of work was previously performed manually by workers using tongs, and was one of the most dangerous jobs in a drilling operation. However, with iron roughnecks and modern technology, much of this can be done remotely with minimal manual handling.
Description
ST-120 IRON ROUGHNECK
SPECS TO BE CONFIRMED!!
Hydraulic Requirements
2,500 psi (172 bar) to 3,000 psi (207 bar)
45 GPM (170 LPM) Min; 65 GPM (245 LPM) Max
Tubular Range
3-7/8″ to 10″ OD (88.9 mm to 254 mm)
Spin Speed
80 RPM (nominal on 5″ OD)
Spin Torque
3,000 Ib-ft (4,067 Nm)
Maximum Make-Up Torque