Swamp barge
general description
hook load: 1,550,000 lb
drilling depth capacity: 35,000'
water depth capability: minimum 7.5'; maximum 18' (depending on bottom conditions,
prices $90k less $10
location: lagos
swamp barge
general description
hook load: 1,550,000 lb
drilling depth capacity: 35,000'
water depth capability: minimum 7.5'; maximum 18' (depending on bottom conditions,
season and location)
light ship draft: 7'6"
pollution control: zero discharge
rig history: built by mcdermott in 1982.
major equipment
mast:
dreco 142' x 25' rated for 1,550,000 lbs on 14 lines with stabbing board for running casing.
wind 100 mph full; 115 mph nothing in derrick.
substructure:
31' x 25.5' with bottom deck having bop stump (storage) on each side of key slot. rated for
1,550,000 lb hook load; 900,000 lb on rotary, 650,000 setback, 2,200,000 lb combined hook
and setback; 1,550,000 lb combined rotary and setback.
crown block:
dreco 7 sheave rated for 885 tons on 14 lines.
traveling block:
national 7 sheave rated for 650 tons on 14 lines.
drawworks:
national 1625-de 3000 hp freshly overhauled with new bearings, driven by two emd d-79
electric motors with dynamic braking, national catheads and water-cooled brake drums.
currently power is set as 2000hp and additional motor required to achieve the 3000hp.
auxiliary brake:
el-magco 7838 water-cooled electric brake.
rotary:
national c-375-e with 37.5" driven by an emd d-79 electric motor and 2-speed transmission.
mud pumps:
two national 12-p-160 with continental pd55a pulsation dampener and 5,000 psi resettable
pressure relief valve. pumps powered by two emd d-79 electric motors. p-quip streamline
system for liner and piston assembly. recommended upgrade to (2) white star quatro 2450hp
mud pumps that fit easily in current pump room.
top drive:
gdm model 500 rated for 500-ton drilling and 650 ton casing, 5k psi wp with independent
scr/mcc room.
drilling line:
1 ½" diameter.
stand pipe manifold:
rated for 5,000 psi. upgrade to 7500psi needed to achieve full 35,000' drill depth.
major deck machinery
cranes:
two unit marine model 150-h revolving cranes with 50' boom rated for 15 tons at 15' radius.
bop handling equipment:
two 25 ton pneumatic hoist with pendant control.
main power
three 600 volt ac, 2,365 amp generators.
two model 16-645e8 emd, one model 12-645e8 cylinder diesel engines with air cooled heat
exchangers (radiators). recently overhauled.
baylor 4-bay scr and controls drive system.
key dimensions
barge length: 210'
barge width: 54'
barge depth: 14'
posted deck height: 14'
key slot: 10' x 40'
transit height: 70'
rotary to top of barge: 38'
a-frame to rig floor: 25.95'
lowest overhead across keyway: 29.93'
bottom of rotary pan to bottom deck: 30.57'
storage capacities
liquid mud: 1,563 bbl
drill water: 5,300 bbl
potable water: 1,100 bbl
diesel fuel: 1,800 bbl
barite bulk tanks: 3,000 sacks
bop equipment
annular preventer:
13 ⅝" 5k psi wp with 10k flange on bottom, 5k on top.
double bop:
13 ⅝" cameron 10k psi wp type u fixed with blind shear ram and 5" pipe ram; 3 ¹/₁₆" flanged
side outlets, 10k flange top and bottom, hydraulic booster on blind shear ram.
single bop:
13 ⅝" cameron 10k psi wp type u bop fixed with 5" pipe ram, 10k flange top and bottom.
choke manifold:
10k manual valves, one manual choke valve, one remote control hydraulic choke and kill valve,
vertical mud/gas separator with 6" vent line to crown, one hydraulic and one manual tiw on
top drive.
all bop equipment rated for h₂s service.
bop hydraulic unit:
massco 7 station, 320-gallon 3,000 psi wp with one triplex pump driven by electric motor;
three pneumatic pumps and twenty 11-gallon accumulator bottles and remote-control station
at living quarters.
mud & gas monitoring system:
oilfield instrumentation edr for pvt, gain/loss, gas and flow.
degasser:
derrick vacuflo 1200.
trash compactor:
one hydraulic trash compactor.
welding machine:
two 400-amp welding machines onboard rig.
heliport:
48' x 48' with 16-ton capacity and rated for s-62 sikorsky.
communications:
star-link satellite phone and internet, vhf base & portable radios, gai-tronics public address
and phone throughout rig.
wireline unit:
one electric/hydraulic with 15,000' of .092 wire.
living quarters:
full climate control for 44 people (expandable), private rooms for rig manager and company
representative, recreation room with large screen satellite tv, marine sanitary device with uv
light.
air compressor:
two quincy model qsi-500 480v 150 psi.
one ir tw30 model 235 compressor driven by diesel engine.
bulk compressor:
one quincy model qslpp60 480v 40 psi.
drill string
drill pipe:
15,000' of 5" s-135 drill pipe with nc 50 connections.
hwdp:
15 joints 5" with nc 50 connections.
drill collars:
nine 8" with 6⅝" regular connections.
twelve 6½" with 4½" xh connections.
mud system
mud pits:
settling pit with 480 bbl capacity.
active pit with 480 bbl capacity.
reserve pit with 389 bbl capacity.
slug pit with 50 bbl capacity.
treatment/pill tank with 100 bbl capacity.
sand trap with 114 bbl capacity.
trip tanks (2) with 50 bbl capacity each.
solids control system
shale shakers:
three derrick 3-panel flc.
desander:
two derrick with 10" cones.
desilter:
sixteen derrick with 4" cones.
gumbo buster:
derrick flc primer model #flp-28-258.
auxiliary equipment
pipe handling:
350-ton drill pipe elevators.
90' mousehole.
slips and lift subs for all size drill pipe and drill collars.
link tilt on top drive with 350-ton links.
one spinmaster pipe spinner wrench with independent hydraulic unit.
tongs:
ht-65 tongs.
cantilevers:
one in mud house (starboard side) for pallet material.
one on mud pits (port side) for mud engineer lab.
one on pipe rack (port side) for mud logger building and miscellaneous equipment.
one on port side of living quarters for additional sleeping quarters or office.
main deck layout (summary)
main deck total length: 210'-0"
total width: 54'-0" (22'-1" + 9'-10" + 22'-1")
rig floor area: choke & kill manifold, gas buster, drill line spool, rotary,
national 1625 de drawworks, v-door, drillers shed, accumulator, standpipe
manifold.
pipe rack area: approx. length 93'-2", equipped with two cranes/booms.
quarters area: 44-man quarters including galley, dining area, and living quarters, approx.
length 66'-0".
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