Jack-Up Murmanskaya

Name	Jack-Up «Murmanskaya»
Port of registry	Murmansk
Purpose	Well drilling for oil and gas up to 6000 m depth at a sea depth from 12 to 100 m
RMRS Class	К [*] I semi-submersible drilling rig – jack-up
Operation conditions	Wave height	21,6 m (1% occurrence)
		19,0 m (3% occurrence )
	At wind speed	Up to 48 m/s and 0,75 m/s current speed
	At sea depth	Up to 70 m/s with 13,5 m clearance
		Up to 80 m/s with 12,5 m clearance at wave height of 18,5 / 16,1 m
		Wave period not less 15,7 / 13,5 s
		(at 1% and 3% occurrence accordingly)
		And current speed
		0,5 m/s;
		Up to 100 m/s with 9,5 m clearance at
		Wave height of 15/ 13,1 m and wave period not less
		14 / 12,6 s (at 1%
		and 3% occurrence accordingly)
		And current speed of
		0,5 m/s.
	Operational temperature for the equipment and specified temperatures for steel constructions	from – 20 C to + 40 С
	In idle period	From - 40 C to + 40 °С.
Architecture-design type	Non- self-propelled unit, with three legged, living complex of block-modular construction installed on jack-up’s upper deck at fore; with a helideck installed at fore on the portside and drilling unit placed on the jack-up’s aft.
Crew (including special staff)		84 persons
Number of cabins	1 – berth	6
	Double- berthed	39
GENERAL CHARACTERISTICS	Principal dimensions, m
	Length overall	109
	Breadth overall	77
	Extreme breadth (with outriggers)	68
	Overall height (legs in extreme upper position)	146
	Distance between side legs axes	52
	Distance of fore leg from line of side leg axes	64
	Length on waterline	88
	Pontoon breadth	33,6
	Hull height	9,7
	Light draft (legs in extreme upper position)	5
	Extreme draft (legs in extreme upper position)	5,3
Mass load, t:	Light floating load	14800
	Light weight at lowering and lifting (legs on the bottom)	10130
	Maximum reserves at lowering and lifting	870
Tonnage, t:	Gross	12533
	Net	3760
Ship’s stores
Tank capacity , t:	Fuel	430
	Oil	23
	Boiler water	30
	Water for diesel-generator cooling	96
	Potable water	330
	Sea endurance with allowance made for replenishing boiler water, days	30
Technological stores, t	Barites	350
	Bentonite	200
	Cement	200
	Drilling mud, m	350
	Fresh service water	430
	Oil for production equipment	5
	Bulky material store	100
	Collecting tank for waste service water	100
	Tank for used oil	10
Places for storing , t:	Drill pipes and drill collars	200
	Casing pipes	300
	Drilling tools and accessories	60
	Equipment for casing bottom connection	50
	Pipes for riser	50
	Drill cuttings in containers	150
	Two BOP stacks	60
Stability on ground :	Maximum pressure on ground no more than, mPa	0,4
	Design bottom penetration of legs no more than, m	7,5
Leg’s supporting-jacking system	Type of system- three-legged system with truss three-edged legs equipped by electric driving rack-and-pinion gear of lifting with lift pitch of 10 meters.
Dimensions of leg’s supporting-jacking system , m:	Leg length	146
	Distance between supports	10
	Portal height	10
	Portal size	18 х 21
	Height of shoe base	4,5
	Diameter of shoe base, m	16
	Shore base area, m2	177
Technical characteristic of leg’s supporting-jacking system:	Safe load at raising, t	11400
	Safe load at standing in stormy weather conditions, t	12900
	Number of driven pinion gears	36
	Nominal speed of raising (lowering) of
	traverse supports housing, m\min	0,66
	Medium speed , m/min	0,33
Main technological parameters	Relative drilling depth (at drill tools diameter of 5"), m	6000
	Safe load on hook, kN	4000
	Draw works National-1625 DE:
	Drive-shaft power, kW	1475
	Crownblock National Oilwell
	Max. load	583
	Wire-line string up :	6х7
	Derrick VBP 54-400 “Uralmush
	Used height of derrick , m	54
	Nominal drill pipe stand, m	27-29
	Rotary table Wirth RTSS
	Static load capacity, (T)	800
	Rotor opening, inch	49 1/2
	Mud pumps Wirth TRK
	Quantity, pcs.	2
	Maximum pressure, mPa	32
	Top drive system DDM- 650L-DC:
	Load capacity, t	650
	Max. torque, Nm	76900
	-max. rotary speed, rpm	237
	Set of near-bottom hangers Mud Line 7 5/8"+30" (5 pcs.) VETCO	1
	Set of landing heads (10000 PSI) VETCO GRAY	1
	BOP equipment
	BOP manifold MBP-80х70P with piping, set	1
	Preventors control console "Coomey", set	1
	Preventors:
	BOP stack 20 3/4" "Cameron", consisting of :
	Annular BOP, type CIW D 20 3/4" 3 000 PSI	1
	Single BOP, type U 20 3/4" 3 000 PSI	1
	Double ram BOP, type U 20 3/4" 3 000 PSI	1+1
	BOP stack 13 5/8" "Cameron", consisting of:
	Annular BOP, type CIW D 13 5/8" 5 000 PSI	1
	Double ram BOP, type U 13 5/8" 10000 PSI	2+2
Life saving equipment	Lifeboats, totally enclosed, motor propelled, with sprinkling and life support system , pcs.	4
	Lifeboat capacity, men	42
	Provision on board	100%
	Liferafts, inflatable PSN-10MК, pcs.	9
	Liferaft capacity, men.	10
	Provision on board	100%
	Individual means of protection, pcs:
	Immersion thermal protective suits	84
	Life-saving jackets	125