Drillfloor equipment - Aker Solutions

24 Aker Solutions
Drilling Technologies
Drillfloor equipment
MH DRN 200
The MH DRN 200 is a patented machine made for
making up and breaking out drill pipe, drill collars and
casing. The clamping range is from 2 3/8” to 20” with
a torque capacity of 203 000 Nm (150 000 ft-lbs). It
is based on two tongs that can be separated and is
thereby also capable of handling stabilizers and bits.
In addition, the MH DRN 200 has a make up and
break out torque capacity of 68 000 Nm (50 000 ft-lbs)
between its main tong and drill floor and between
the top drive and its backup tong, giving a unique
operational freedom.
Integrated into the design is also a spinner, casing
guide, thread washing and lubrication system. The
MH DRN 200 travels on rails welded or bolted to the
drill floor, thus reaching the centre of rotary table. The
wheels are hydraulically driven giving positive drive for
the travel by means of constant mesh sprocket to rail.
The design criteria were set to improve HSE for drill
floor activities, save cost and to improve efficiency.
Improved HSE
• The spinner stabbing feature and casing stabbing
guide ensures hands-free operation of drill pipe and
casing.
• The upper and lower tongs can be elevated
separately, allowing the machine to act as rig tongs,
and to make up and break out odd pieces such as
stabilizers and bits.
• Integrated washing and pipe doping (on box
end) makes this a hands free operation as well, and
removes people from the most dangerous area.
• Since the casing tongs are integrated into the
machine, the need for rigging up and down heavy
casing tongs are eliminated, which in turn removes
the risk for incidents related to drill floor handling.
• Reduced number of machines on drill floor
necessary for drilling operations
Saved cost
• No need for hiring casing tongs. The cost of hiring
or purchasing casing tongs is removed.
• Ordinary drilling crew can operate the casing tong.
The acceptance or rejecting of pipe connections
can be done onshore, as the control system is
prepared for remote transfer of data. Reduced cost
for casing crew and supervisor.
• No need for separate drill pipe doping devices
• Enabling more compact drill floor installations
Design data
Society of classification
Equipment classification
Design temperature
Acc. to DnV (Det norske Veritas)
II
-20 / +45 °C (-4 / +113°F)
Technical data
Max. makeup torque 203 000 Nm (150 000 ft.lbs.)
Max. breakout torque 203 000 Nm (150 000 ft.lbs.)
Max. MU/BO torque between MT/DF & TD/BUT 68 000 Nm (50 000 ft.lbs.)
Bit brake plate - Lower locator square 345 mm 13 9/16”
Spinning range 60-245 mm (2 3/8” – 9 5/8”)
Guiding range 60-508 mm (2 3/8” – 20”)
Max. spinning torque (5” DP) 2300 Nm (1700 ft.lbs.)
Max. spinner rpm (5” DP)
0-100 rpm
Vertical independent spinner travel 600 mm (23 ½”)
Min. distance center MT- center roller 1150 mm (45”)
Max. tong rpm
15 rpm
Max. travel speed 500 mm/s (20 in/s)
Max. vertical travel (tong/spinner) 1500 mm (59”)
Handling range (pipe/casing) * 60-508 mm 2 3/8” – 20”
Min. MU/BO stick up 540 mm (21 ½”)
Max. MU/BO stick up 1900 mm (75”)