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AD21

Rig AD 21
Type: Heavy Land Rig
Country: Saudi Arabia
Builder Lee C. Moore
Rig Basic Design SCR, Ross Hill
Specifications Service Date Built 1981, purchased by ADC 1997
Major Upgrade 1997, Mud Tanks, Camp
Rated Drilling Depth 25,000 ft
Location footprint 170′ x 190′
Storage Solid control  mud tanks 5 total, sand trap – 142 bbls, Desander – 213 bbls, Desilter & Centrifuge – 182 bbls ea., #4 – 197 bbls.
Capacities Trip tank / Strip tank Trip Tank – 89 bbls – 2 ea., Strip Tank – 167 bbls
Active Mud Tanks Active Tank – 431 bbls + 2 Premix Tanks – 225 bbls ea.
Reserve Mud Tanks 6 total, 4 x 285 bbls, 1 x 350 bbls, 1 x 568 (2 x 284 bbls compartment)
Drill Water 3 Tanks, 1 x 285 bbls, 2 x 360 bbls
Fuel 1 tank, 584 bbls (for well usage only)
Brine none
Others 2 Tanks – Cement System, 2×500 bbls, 1 has 2 compartments: 1 x 250 bbls & 1 x 250 bbls
Rig Mast/Derrick Lee C. Moore, Serial # T-3771, Max static hook load for 14 lines to traveling block 1,555,000 lbs. Rig floor ht 32′, clear ht under rotary beams – 27′ 6″, Mast ht. 147′, floor 30′ x 26′, foot print: 60′ x 28′
Equipment Drawworks Gardner Denver, 3000 E, 60″ drum, no Sandline, Foster Catheads, 3 x EMD D79 Dc motors – 1,000 HP
Auxiliary Brake (Elmagco) Elmagco, Baylor 7838
Main Power 5 each Cat D399 TA, 1215 HP each, driving Kato 1050 KW Alternators, 600 VAC, 60 Hz
Emergency Power 1 each Cat 3306 diesel Engine w/Kato 185 KVA Alternator
Power Conversion Ross Hill SCR, AC/DC system, 600/440 & 440/220 Volts, 60 Hz.
Mud Pumps 3 X Gardner Denver PZ 11 (1600 HP), Powered by 2 ea EMD D79 Motors
Shale Shakers 3 each Derrick Flo Line Cleaners
Mud cleaner 1 each Derrick HY G Shaker w/20 x 4″ DeSilter cones & 3 x 10″ DeSander cones
Other solid control eqt Harrisburg Desander – 1600 GPM, 2 x 12″ cones w/Mission 6 x 8 pump, w/100 hp motor; Harrisburg Desilter – 1600 GPM, 16 x 4″ cones w/Mission 6 x 8 pump, w/100 hp motor; Brandt vacume  degasser type horizental & poor boy vertical,
Make, Type, Number…
Mud mixing equipment 3 x hoppers w/6 x 8 Mission mixing pumps w/100 hp motors, w/Super sack handler -complete w 2x 5 ton hoist
Topdrive Hydralift, HPS 500, 500 ton rated
Rotary Table Continental Emsco 37 1/2″, 750 Ton rated
Crown Block Lee C. Moore Type D, 750 ton rated, 1 fast line + 7 sheaves – 60″ OD, grooved for 1 1/2″ wire rope
Travelling Block Lee C. Moore, 7 sheaves 60″ OD, grooved for 1 1/2″ wire rope
Drilling line 1 1/2″, 6 x 19 IWRC, IPS
Swivel Continental Emsco, LB 650, 650 ton rated
Drilling Instrumentations i-D3
Other Major Drill Floor Eqt Varco SSW 40 pipe spinner
Communications None
Blowout Annular BOP 1 x 13 3/8″ x 5,000 psi Hydril GL (H2S)
Preventer
Equipment Ram Preventers 2 x 13 5/8″ x 10,000 Camron Type U double (H2S)
Choke Manifold 4 x flow paths,2 x Swaco Super chokes, 1 manual choke, 1 “blueie Line”, 4 1/16″ x 10,000 valves to a 5k buffer tank, tank has 3 HCR 4 1/4″ x 5k valves to flare lines (3); 1 x 4 1/16″ x 10k coflexip hose
Control System (Koomey unit) Koomey, 12 stations, 2 x air operated pumps, 1 x 75 hp electric pump, 12 x 11 gal accum, 18 x 12 gal accumulators
BOP Handling System 2 x IR 35 ton hoists on rails
Camp Camp Site Power 2 Cat D3414, Kato 450 KW generators, 220 AC, 60 Hz.
Capacity Rig Camp: For Client: 4 x 1 man Snr. – for Comp Rep, 4 x 2 man Snr. Comp Rooms; 4 x 4 man Jr. Comp Rooms, Offices Client: 1 X Comp Foreman, 1 X Mud Eng, 1 X Geol. For ADC: 1 x TP Room, 1 x CE Room, 1 x CM room, 1 x Medic Room, 1 x 2 man VIP, Offices: 1 x
Camp Accommodations: 1 x Snr Rec, Mess & Galley (on Master skid); 1 x Jnr Rec, Mess & Galley (on Master skid); 18 x 4 man Jnr Accom’s; 10 x 2 man Snr Accom’s (sharing Baths); 2 x Dry store, 1 x Laundry, 1Freezer, 1 x Chiller, 1 x Ablution
Moving Number of loads 180 loads  (field moves) 220 loads truck loads for road legal moves– with tubular + camp
Requirements Trucks Hi beds & low beds
Rolling gears to move rig None
Crane None, supplied to rig on rental basis, for moving: 4 x 50T + 1 x 80T required
Forklift None, supplied to rig on rental basis
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