Jeff Weber

The Upetrom F400 (often designated as the F400 DEC or F400-1800HP) is a heavy-duty, conventional land-based oil and gas drilling rig manufactured by the Romanian industrial company Upetrom-1 Mai (Ploiești).
Key Technical Specifications
• Hook Load Capacity: 400 tonnes (approx. 440 short tons / rated static capacity)
• Recommended Drilling Depth: 5,000 to 7,000 meters (approx. 16,400 to 23,000 feet) depending on drill pipe configuration (5-1/2" or 4-1/2" drill pipe).
• Power & Engines: Typically driven by diesel-electric configurations or heavy-duty multi-engine setups (such as Electroputere Craiova generators/engines).
• Brakes / Drawworks: Equipped with heavy electromagnetic brakes (such as the Upetrom FE 1400).

RIG DATA
Rig name and type F400 DEC
Year of Construction/ Last Major Refurbishment & TPI 1989/ 2012
Loads required to move Rig and Rig 59
Hook load capacity (tonnes) 400
Recommended Drilling depth range (5.1/2" / 4.1/2" DP) 5,000 - 7,000 m

RIG STORAGE CAPABILITIES
Liquid mud (m3) 315
Waste oil (m3) 2
Pipe racks (for 9 5/8" casing) (m) 2500

DRAWWORKS
Make UPETROM
Type TF-44-E
Max. intake power (HP) 3,000
Number of speeds 4 + 2 reverse
Max. single pull line capacity (tonnes) 44 w/ 12 lines; 38 w/ 10 lines
Hoisting drum grooved for line OD (in inch) 35 mm (1-3/8")
Drilling line guide (type) UPETROM
Make-up cathead (make) UPETROM
Break-out cathead (make) UPETROM
Low drum clutch (type) AD-2 950
Low drum clutch torque capacity (kgf) 2,900
High drum clutch (type) AVB 1120x300
High drum clutch torque capacity (kgf) 17,550
Brake (type) BULL WHEEL BRAKE BAND
Electromagnetic brake (make/type) UPETROM/ FE 1400
Torque capacity at 50 RPM (daNm) 7,000
Brakes cooling system capacity (m3) 18
Cooling fluid water
Automatic drilling control (type) DAAS
Crown-O-matic device (type) UPETROM
Quantity of drilling engines installed 2
Drilling engines make ELECTROPUTERE CRAIOVA
Drilling engines type MCF 850
Engines rated power (HP) 1140 each

MAST
Make UPETROM
Type MA 400-2
Total height from rig floor (m) 44
Total height from ground level (m) 50.9
Max. hookload capacity (tonnes) 400 w 12 lines
Racking capacity 4.1/2" / 5.1/2" DP, triple stands (m) 9,000/ 7,200

CROWN BLOCK
Make UPETROM
API rated capacity (tonnes) 500
Number of sheaves 7
Sheaves grooved for OD line 35 mm (1-3/8")

SUBSTRUCTURE
Make and type UPETROM
Rig floor dimension (m x m) 11.2 x 10.9
Rig floor set-back capacity (tonnes) 250
Rig floor rotary cap. (tonnes) 400
Rig floor height (m) 6.9
Clear height to rotary beams (m) 5.5

TRAVELLING BLOCK
Make 6-35-MC-500
Type UPETROM
Rated capacity (tons) 500
Number of sheaves 6
Sheaves grooved for OD line 35 mm (1-3/8")

HOOK BLOCK
Make UPETROM
Type Integral with travelling block
Rated capacity (tonnes) 500

UTILITY AIR WINCHES
Quantity 3
Type 1 x TP3000; 2 x TP1200
Rated capacity (tonnes) 1 x 3; 2 x 1.2
Installation site Rig floor, catwalk end; monkeyboard

DRILLING LINE
Make Mechel
size 35 mm (1-3/8")
Type Seal 6x19
Breaking strength (tonnes) 45

DEADLINE ANCHOR
Make NATIONAL
Type 131T
Rated static capacity (kN) 333.61
With OD drilling line 35 mm (1-3/8")

AIR NAVIGATIONAL MARKINGS Derrick top blinking red light

ROTARY TABLE
Make UPETROM
Type MRL 275
Rated capacity (tonnes) 500
Max. opening 27-1/2"
Driven by Cardan shaft
Motor (make) ELECTROPUTERE CRAIOVA
Type MCF 850
Continuous power (HP) 1140

MASTER BUSHING
Make UPETROM
Type 27-1/2"
Insert bowl size for all casing sizes yes

SWIVEL
Make EMSCO
Type LB400
Rated static capacity (tonnes) 400
Working pressure (bar) 350

TOP DRIVE
Make TESCO Corp.
Type 500 HCI 1205 Hydraulic
Rated power (HP) 1205
Rated capacity (tonnes) 500
Working pressure (bar) 350
Max. drilling torque (lb-ft) 52,232
Max. break out torque (lb-ft) 58,761
Max. make up torque 52,232
Max. speed (RPM) 208
Power unit engine 1 x 16V2000 DDEC Detroit Diesel Engine
Power unit pumps (number installed) 6
Power unit pumps max. pressure (PSI) 4,000

MUD PUMP NO: 1
Make UPETROM
Type Triplex 3PN1300
Rated power (HP) 1300
Max. WP (bar) 350
Fluid end type SIMPLE ACTION
Pulsation dampeners type AP-350
Reset relief valve UPETROM
Stroke counter (make) Martin Decker
Powered by electric engines (make) ELECTROPUTERE CRAIOVA
Number of engines installed 2
Type MCF 550 KW
Engines output power (HP) 737 each
Supercharging pump (make) UPSS Botosani
Powered by electric engine (HP) 40

MUD PUMP NO. 2
Make UPETROM
Type Triplex 3PN1300
Rated power (HP) 1300
Max. WP (bar) 350
Fluid end type SIMPLE ACTION
Pulsation dampeners type AP-350
Reset relief valve UPETROM
Stroke counter (make) Martin Decker
Powered by electric engines (make) ELECTROPUTERE CRAIOVA
Number of engines installed 2
Type MCF 550 KW
Engines output power (HP) 737 each
Supercharging pump (make) UPSS Botosani
Powered by electric engine (HP) 40

MUD PUMP NO. 3
Make UPETROM
Type Triplex 3PN1000
Rated power (HP) 1000
Max. WP (bar) 350
Fluid end type SIMPLE ACTION
Pulsation dampeners type AP-350
Reset relief valve UPETROM
Stroke counter (make) Martin Decker
Powered by electric engines (make) ELECTROPUTERE CRAIOVA
Number of engines installed 1
Type MCF 850 KW
Engine output power (HP) 1080
Supercharging pump (make) UPSS Botosani
Powered by electric engine (HP) 40

MUD PUMP SUCTION LINES
Mud suction lines (No.) 3
Size (in inch) 10
Suction line dampeners (No.) 3
Suction line dampeners (Make) UPETROM

MUD DISCHARGE LINES (each pump has separate line)
Numbers 3
Size (inch) 4
Flexible line section (type) JUMPING HOSE
Working pressure (bar) 350

STAND PIPE MANIFOLD
Connection ends (type) 4” LP
Valves (type) CAMEROON
Inside diameter and W.P. (inch x bar) 4’’ X 350 bar

STAND PIPE
How many DOUBLE
Length (m) 16
Inside diameter and WP (inch x bar) 4’’ X 350 bar

ROTARY HOSE / CIRCULATING HOSE
Number 2
Rotary hoses make/size Continental Phoenix / 3-1/2"
Length (m) 22
Pressure (bar) 350

DIESEL ENGINE GENERATOR SETS
Number 3
Diesel engines make CATERPILLAR
Diesel engine type CAT 3512B DITA SCAC
Maximum continuous power (KW) 1,090
At speed of (RPM) 1,500

AC GENERATORS
Number 3
Make CATERPILLAR
Type SR4B
Maximum continuous power (KW) 1,090
Power factor 0.7
Output (Volts) 600
Frequency (Hertz) 50
At speed of (RPM) 1,500

SCR CONVERSION SYSTEM
Make ICPE ACTEL Bucharest
SCR Type SCRN 3*850 / 4*550
SCR No. 1
Maximum continuous power (kW) 4,550
Output (Volts) 690

EMERGENCY GENERATOR
Make CATTERPILLAR
Number of units 1
Type GEP500
Max. continuous power (KW) 500
Output voltage (Volts) 400
Frequency (Hz) 50

AIR COMPRESSORS
Make INGERSOLL RAND
Number installed 2
Type(s) RAND 37kW
Max. flow rate (m3/min) 6,5
Air pressure service 10

AIR SPARE TANKS
Type GPA8
Volume (m3) 8

MUD TANKS GENERAL
Total mud tanks installed (No.) 5
Total mud system capacity (m3) 315
Total usable volume (m3) 270

Mud tank No. 1 - capacity (m3) 45
Used for: shakers tank
Electrical agitators (No.) 1
Electrical agitators (make and type) Neptun SA / 2NB16-VO5
Powered by electric motor (HP) 10

Mud tank No. 2 - capacity (m3) 60
Used for: cleaning tank
Electrical agitators (No.) 3
Electrical agitators (make and type) Neptun SA / 2NB16-VO5
Powered by electric motor (in HP) 10

Mud tank No. 3 - capacity (m3) 70
Used for: mud tank
Electrical agitators (No.) 3
Electrical agitators (make and type) Neptun SA / 2NB16-VO5
Powered by electric motor (in HP) 10
Bottom guns (No.) 3

Mud tank No. 4 - capacity (m3) 70
Used for: mud tank
Electrical agitators (No.) 3
Electrical agitators (make and type) Neptun SA / 2NB16-VO5
Powered by electric motor (in HP) 10
Bottom guns (No.) 3

Mud tank No. 5 - capacity (m3) 70
Used for: reserve tank
Electrical agitators (No.) 3
Electrical agitators (make and type) Neptun SA / 2NB16-VO5
Powered by electric motor (in HP) 10
Bottom guns (No.) 3

MIXING PUMPS (No) 2
Make UPSS Botosani
Type BPG150
Driven by motor (type) electric
Motor (HP) 100

SHALE SHAKER
Number of Shakers 3
Make MI SWACO
Type ALS II
Screens (make) MI SWACO

MUDCLEANER
Make SWACO
Type 2-12/6T4 ALS II
Number of cones and size (No. x inch) D-silter 12 cones x4" / D-sander 2 cones x12"
Centrifugal pump (make) AVERSA BUCURESTI
Type AG 150
Number installed 2
Driven by electric engine (HP) 100

VACUUM DEGASSER
Type Upetrom
Gas discharge line running to Out of site
Mud rate (l/s) 53
Gas rate (m3/ min) 1.6
Charging pump capacity (m3/h) 200
Vacuum pump capacity (m3) 100

MUD GAS SEPARATOR (POOR BOY)
Size OD / height (m) 0.8 / 7.5
Gas vent line running to up to mast ODS
Mudleg height (m) 3.3
Vent line size (inch) 8
Mud discharge line size (inch) 8
Feeding line size (inch) 4
Trip tank (capacity-m3) 12
Level indicator visible from driller's site yes
Feeding pump (type) AG150
Mud pit level indicator (make) UZTEL
Indicator (type) RULLER

DRILLING CONSOLE
Make MARTIN DECKER
Type AWE6K
WEIGHT INDICATOR
Make MARTIN DECKER
Type E
Dead-line load YES
MUD PUMP PRESSURE GAUGES
Make MARTIN DECKER
Type GM6A - 255
Pressure range (bar) 350
ROTARY SPEED TACHOMETER
Make MARTIN DECKER
Reading range (RPM) 0-200
TONG TORQUE INDICATOR
Make MARTIN DECKER
Type H6DP
reading range (lb) 0-11000
MUD PUMP STROKE INDICATOR
Quantity (No.) 2
Make MARTIN DECKER

DRILL. PARAMETER RECORDER
Make MARTIN DECKER
Model (type) SIX PENS
Parameter recorded-WOB YES
Parameter recorded-ROP YES
Parameter recorded-RPM YES
Parameter recorded-SPM 1/SPM 2 YES
Parameter recorded-Pump pressure YES

WATER PUMPS
No. 2
Make UPSS BOTOSANI
Type CERNA
Driven by (type) ELECTRIC ENGINE
Rated power (HP) 10

MISCELLANEOUS
Warehouse (No.) 2
Workshop (No.) 2
Muster point tent 1

COMPENSATION UNIT
Voltage 690 - 720 V / AC
Frequency (Hz) 50
WIRELINE UNIT
Make NOV
Wireline OD / length (mm / m) 2.3 / 7,620
Max speed (m/min) 365
Max pull (kg) 650
SURVEY UNIT
Make MD TOTCO
PROPOSED DRILL STRING Quantity (no.)
5 1/4" Square Kelly 1
Kelly spinner 1
5 1/4" high torque kelly bushing 1
5 1/4" kelly Cock 1
4 3/4" DC 12
4" HW DP 24
4" DP 735
Subs 25

BOP stack
13 5/8" 5M annular preventer 1
13 5/8" 10M double ram 1
13 5/8" 10M single ram 1
Manual gate valves, 3 1/16" 10M, 2.1/16" 10M 2
HCR valve, 3 1/16" 10M, 2.1/16" 10M 2
Check valve, 2 1/16" 10M 1
Kill hoses, 2" 10M 1
Drilling spool with side outlets 13 5/8 x 13 5/8 10M 1
7 1/16” 10M annular preventer 1
7 1/16” 10M double ram with blind rams and pipe rams 1
Drilling spool with side outlets 7 1/16 x 7 1/16” 10M 1


CHOKE MANIFOLD & ACCUMULATOR
3" 10M choke manifold with 1 manual and 1 hydraulic choke 1
1 drillers remote hydraulic choke control panel 1
Accumulator, 6 station koomey unit, API sized for BOP's 1

KILL MANIFOLD
2.1/16' 10M kill manifold 1