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Contract Drilling

Weatherford products and services are subject to the Companys standard terms and conditions, availableon request or at weatherford.com. For more information contact an authorized Weatherford representative.Unless noted otherwise, trademarks and service marks herein are the property of Weatherford. Specicationsare subject to change without notice. Weatherford sells its products and services in accordance with theterms and conditions set forth in the applicable contract between Weatherford and the client.

Weatherford International Ltd.

515 Post Oak Blvd., Suite 600

Houston, Texas 77027 USA

Tel: 713-693-4000

weatherford.com 20062009 Weatherford. All rights reserved. 6873.00

Rig 319Heavy Duty, 3,000 HP

General Description

Design . . . . . . . . . . . . . . . . . . . . . . . . . . Branham/Swift-Lift

Estimated drilling depth rating . . . . . . . . 25,000 ft (7,620 m)*

Camp capacity. . . . . . . . . . . . . . . . . . . . 80

Estimated total rig move loads . . . . . . . 120 truck loads

Estimated total camp move loads . . . . . 20 truck loads

Mast

Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . Branham/Swift-Lift

Height . .. .. . .. . .. . .. .. . .. . .. . .. . 157 ft (47.8 m)

API rated simultaneously load capacity

of setback and rotary . . . . . . . . . . . . . . . 2,395,748 lb (1,086,693 kg)

Static hook-load capacity . . . . . . . . . . . 1,597,900 lb (724,795 kg)

Setback capacity .. . . . . . . . . . . . . . . . . 797,848 lb (361,898 kg)

Substructure

Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . Branham Swing lift, self-elevating

Height .. . . . . . . . . . . . . . . . . . . . . . . . . 34.9 ft (10.67 m)

Clear height, rotary beam to ground . . . 26.9 ft (8.23 m)

Casing capacity . . . . . . . . . . . . . . . . . . . 1,597,900 lb (724,795 kg)

Setback capacity .. . . . . . . . . . . . . . . . . 797,848 lb (361,898 kg)

Drawworks

Type . . . . . . . . . . . . . . . . . . . . . . . . . . . National 1625 UBDE

Power rating . . . . . . . . . . . . . . . . . . . . . 3,000 HP

Input power .. . . . . . . . . . . . . . . . . . . . . 3 General Electric GE-752, 1,000 HP

each

Drilling line diameter .. . . . . . . . . . . . . . 1-5/8 in.

Auxiliary brake . . . . . . . . . . . . . . . . . . . Baylor/Elmagco 7838

Top Drive/Swivel

Type . .. . .. . .. . .. . .. .. . .. . .. . .. . Canrig/1275 AC

Capacity . . . . . . . . . . . . . . . . . . . . . . . . 1,653,467 lb (750,000 kg)

Torque . . . . . . . . . . . . . . . . . . . . . . . . . 51,400 ft-lb at 120 rpm

Rotary Table

Type . .. . .. . .. . .. . .. .. . .. . .. . .. . National/D-375

Table opening .. . . . . . . . . . . . . . . . . . . 37-1/2 in.

Drive type . . . . . . . . . . . . . . . . . . . . . . . Independent GE 752, 800 HP each

Engine

Engines . . . . . . . . . . . . . . . . . . . . . . . . 5 Caterpillar D-399, 1,215 HP each

Generators . . . . . . . . . . . . . . . . . . . . . . 5 Kato, 1,500 kVA, 600 V, 60 Hz

SCR/DC-DC . . . . . . . . . . . . . . . . . . . . . General Electric, type U drill

Well Control

Diverter . . . . . . . . . . . . . . . . . . . . . . . . . 1 Hydril, MSP 29-1/2 in., 500 psi

Low-pressure annular . . . . . . . . . . . . . 1 Hydril MSP 21-1/4 in., 2,000 psi

Low-pressure ram preventer . . . . . . . . 1 Cameron, Type U, 20-3/4 in.,

3,000 psi, double

High-pressure annular . . . . . . . . . . . . . 1 Shaffer Spherical, 13-5/8 in., 10,000 psiHigh-pressure ram preventer . . . . . . . 1 Cameron, type U, 13-5/8 in.,

15,000 psi, double

2 Cameron, type U, 13-5/8 in.,

15,000 psi, single

Choke-and-kill manifold . . . . . . . . . . . . 3-1/16 in., 15,000 psi, hydraulic/manually

operated

Accumulator unit . . . . . . . . . . . . . . . . . . Koomey 80 MC 220-11SB, 3,000 psi,

9 stations

Mud System

Mud pumps . . . . . . . . . . . . . . . . . . . . . . 3 National 12-P-160, triplex single acting

Power rating . . . . . . . . . . . . . . . . . . . . . 1,600 HP

Pressure rating . . . . . . . . . . . . . . . . . . . 7,500 psi

Active mud volume . . . . . . . . . . . . . . . . 2,000 bbl

Reserve mud volume . . . . . . . . . . . . . . 1,000 bblShale shakers . . . . . . . . . . . . . . . . . . . . 6 x Derrick/2L/M48-90F-3P

Desander . . . . . . . . . . . . . . . . . . . . . . . Not available

Desilter . . . . . . . . . . . . . . . . . . . . . . . . . Not available

Mud cleaners .. . .. . .. . .. . .. . .. . .. . King Cobra with 3 each, 10 in. + 24 each

4-in. cones

Sack storage capacity . . . . . . . . . . . . . 2 pallets at each hopper

Enhancements

Crane . .. . .. . .. . .. .. . .. . .. . .. . .. . Not available

Forklift . . . . . . . . . . . . . . . . . . . . . . . . . . Caterpillar 966-D forklift, convertible to

loader 5 ton

Kelly spinner/pipe spinner . . . . . . . . . . . I.T.C./A6-C2 Kelly spinner/ Varco or

equivalent drillpipe spinner

Desert-style moving capabilities . . . . . . Not available

*With standard 5-in. drillpipe.

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