With its new PACE -B Series Rig, Nabors continues to advance industry standards in drilling technology and innovation.

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1 PACE -B Series Rig

2 With its new PACE -B Series Rig, Nabors continues to advance industry standards in drilling technology and innovation.

3 Introducing the PACE -B Series Rig D r a w w o r k s The new PACE -B Series Rig from Nabors features a unique moving system that allows rigs to move from wellhead to wellhead quickly and efficiently when drilling on a pad. 1,500-horsepower AC drawworks powered by two (2) 1150 HP AC motors featuring regenerative AC braking. Autodrill functionality utilizing the AC motors. P o w e r G e n e r a t i o n Three (3) Caterpillar 3512C engines rated at 1,476 horsepower, each driving one (1) Kato 1365 KW generator, for a total of 4,428 horsepower. AC power generation, Variable Frequency Drive (VFD) and MCC unitized in a single house. M a s t 147-ft. high cantilever mast manufactured to API-4F specification. Maximum static hook load capacity of 800,000 lbs. on 12 lines. S u b s t r u c t u r e Box-on-box substructure with 25-ft. floor height and 21-ft. clear height under the rotary beams. Substructure is rated for 800,000 lbs. rotary load simultaneous with a 500,000 lbs. setback load. The substructure is designed to accommodate a Columbia Walking System that can move the complete rig with full set back between wells. D r i l l e r s C o n t r o l Climate controlled driller s cabin provides integrated joystick control utilizing PLC technology. Touch screen controls provide state-of-the-art monitoring, control of rig equipment and drilling parameters.

4 M u d P u m p s Two (2) 1,600-horsepower mud pumps. Each is powered by one (1) 1,500-horsepower AC motor; pumps are equipped with hydraulic liner retention and pump rod systems. M u d T a n k s Two (2) tank system total capacity approximately 1,000 bbls; four (4) 6 X 8 centrifugal pumps powered with 75 HP motors. 100-bbl trip tank (2 x 50 bbl compartments). S o l i d s C o n t r o l Two (2) M-I SWACO Mongoose PT Dual Motion Adjustable Shakers. One (1) NOV Brandt DSN-2V-10CTX Desander rated at 1000 gpm. One (1) NOV Brandt DSLR-16GG-4CTX Desilter rated at 1040 gpm. W a t e r S t o r a g e Two (2) 500-bbl water tanks. F u e l S t o r a g e One (1) 15,000-gallon diesel tank. T r a v e l i n g B l o c k 500-ton traveling block, grooved for 1-3/8 drill line. T o p D r i v e Canrig 1250 AC, 500-ton top drive system powered by a single 1150 HP AC motor. Continuous torque rating of 51,400 ft.-lbs. at 118 rpm. I r o n R o u g h n e c k Canrig TORQ-MATIC fully automated floor wrench with PLC control. Remote controlled capability allows the unit to be operated from the driller s console or from various rig floor locations. Pipe range is 2-3/8 to 8-1/2. The maximum Torque Make-Up is 60,000 ft.-lbs. The maximum Torque Break-Out is 80,000 ft.-lbs.

5 A u t o m a t e d C a t w a l k Canrig s 3000 automated catwalk is designed to individually index racked drill collars, drill pipe and casing into a center carrier where they can be lifted to the drill floor. It can safely and efficiently raise anything, including subs, casing, logging tools or utility baskets. The catwalk eliminates the need for pickup and lay down services when running casing. With its remote controlled capability, the unit can be operated from the drill floor or from ground level. Maximum Tubular Length 45 - Range 3 Maximum Tubular OD 20 Maximum Tubular Weight 10,000 lbs Catwalk Height 26 R o t a r y 27-1/2 rotary table, independently driven by a hydraulic motor. Motor can be used for positioning tools, but not for drilling. A c c u m u l a t o r Seven (7) station accumulator unit with one (1) electric triplex and two (2) air operated pumps. Unit is manufactured in accordance with API 16D. Remote panel will be mounted at drill floor. B l o w o u t P r e v e n t e r s 11 x 5M Hydril Type GK Annular Blowout Preventer 11 x 5M Cameron Type U Double Ram Blowout Preventer 11 x 5M Drilling Spool with 4-1/16 x 5M Outlets 11 x 5,000 psi Cameron Type U Single Ram Blowout Preventer Choke Manifold: 4-1/16 x 3-1/8 x 5M BOP H a n d l i n g S y s t e m 20-ton BOP handling system designed to transport the BOP stack in a single piece and to safely and quickly upright and manipulate the BOP stack at well center. D r i l l P i p e 5 drill pipe, or as required by contract. D r i l l C o l l a r s 6-1/2 and 8 drill collars, or as required by contract. A d d i t i o n a l E q u i p m e n t Dedicated man-rider winch Camera system / Intercom System Rotating mousehole Vacuum degasser