b.
i. Air Operated: Water Cooled Disc with copper alloy wear plates, mounted to frame,
coupled directly to drum shaft. Two (2) 36” Disc rated @75,000 ft-lbs @100 psi
maximum 640 rpm.
ii. Size-236 or equal
iii. Maximum Pressure - 100 psi
iv. RPM-640
v. Direct Coupled Drum shaft.

c. i. Combined right angle drawworks drive drop box with one output shaft for rotary drive
and one output shaft (unused) for additional components.
1. One input shaft with 1810 drive flange.
2. Top right shaft - drawworks drive, air engaged 1.0 to 1 ratio keyed shaft
3. Top lower shaft - rotary drive, air engaged 1.1489 to 1 reduction ratio keyed shaft.
4. Bottom lower shaft – Future or additional components, opposite top lower shaft,
air engaged, 0.9787 to 1 ratio (1.0217 to 1 ratio increasing), 1810 drive flange.
ii. Gear type lubrication pump mounted intermediate shaft provides positive lubrication
to bearings.

d. - The 118ft., mast provides is a telescoping
design, manufactured in accordance with API and Drilling Structures Int’l Inc.’s strict
quality control processes.
The mast includes an automatically deployed racking board.
i. A telescoping derrick with open face derrick design, manufactured to API 4-F
specifications. The open face design utilizes structural steel construction, which allows
for maximum block clearance. Derrick includes a ladder from rig floor to crown and a
block cradle with chain & hook for securing block during transport.
ii. Specifications
Mast Height : 118’
No. of Lines to Block - 8 or 10
API Operating Hook Load
- 8-Lines 340,000 lbs.
- 10-Lines 425,000 lbs.
Drilling Line Size : 1-1/8 in.
Racking Board Height - 55 ft., 58 ft., 70 ft.
Racking Board Capacity 5 in. Drill Pipe - 12,400 ft.

iii. Base Section
a. A-leg style base section hinged to carrier frame. (2) Turnbuckles attached from
bottom of derrick base to carrier frame allow for mast angle adjustment.The well-side derrick
legs have manual screw jacks.
iv. Lower Section
a. 6 in x 6 in x 3/4 in angle main legs, with 6 in x 4 in x 3/8 in rectangular tubing
“back” braces. Lower section of mast hinges to top of derrick base and rests on headache
rack during transport.

v. Upper Section
a. Angle construction. 6 in x 6 in x ¾” upper legs, with 3 in x 3 in x 3/8 in “back” braces. Upper
section rests inside lower section until mast is raised. Upper section then telescopes
hydraulically upward from lower section and locks in place with automatic latching pins.

vi. Crown Block
a. Crown block is set up for a 8 or 10 line string-up. Crown sheaves are grooved for 1-1/8 in.
Wire line. All sheaves are mounted on tapered roller bearings with grease certs for ease
of maintenance.
b. Crown includes: (1) one 30 in fast line sheave, and (4) four 24 in crossover sheaves.

vii. Racking Board
a. The mast includes an all welded racking board. The racking board automatically deploys
as the mast is extended.

viii. Derrick Raising System
a. The derrick is designed to utilize two, 72”x 9” x 3-stage, double acting raising rams and
one 50’ x 7” single-stage telescoping cylinder.

ix. Guylines
a. Derrick includes (2) load guys from the crown to carrier and (1) set of wind guys that meet or
exceed API specifications.

e.
a. Hydraulic break out cylinder for breaking out pipe connections, 4 ft. stroke,
maximum pull load 20,000 lbs. Installed on the mast. Includes cable, roller guides and
hydraulic piping.
b.Hydraulic make up cylinder for making up pipe connections, 4 ft. stroke, maximum pull
load 20,000 lbs. Installed on the mast. Includes cable, roller guides and hydraulic piping.
c. Controls are located at the operator’s console

f.
a. Safety device for limiting traveling block raising. Installed at the main drum to activate the
main brake when traveling block is up to a pre-determined height.

g.
a. Dead line anchor to be used with compression type weight sensor. Drum type, mounted on
carrier frame in front of drawworks frame.

h.
a. Two Detroit series 60 - 14.0L engines rated at 600 BHP each@ 2100 RPM’s, 6 cylinders
(inline) complete with DDC electronic control system.
b. Includes: Radiator, Heavy Duty Blower, 24V starter and alternator, variable speed governor,
full instrumentation (ignition switch, ddr connector, electic throttle, electronic display module),
two (2) 12v batteries and spark arrestor muffler.
c. Specifications: 600 BHP @ 2100 RPM, 1650 lbs/ft @ 1100 RPM

i.
a. 5 speed (6th gear locked out), automatic, Allison S6610H or equal w/torque converter,
oil cooler. Dual air/hydraulic operation. Max. capacity 850 HP, 2500 RPM, 2300 ft-lbs input.

j.

a. Compound gear box, dual input, single output, may be drive with one or both engines.
b. Two input shafts, air engaged, 1810 drive flange (engagement of either input or a
combination of both)
c. Single output, 1810 drive flange, ration 1.0271 to 1 to combination gear box.
d. Gear type lubrication pump. Mounted to output shaft provides positive lubrication to bearing.

k.
a. Chelsea 852 XB or equal, Used for hydraulic pump drive, mounted on transmission,
95 HP @ 1000 rpm output.

l.
a. Two hydraulic gear pumps, one 500 gallon hydraulic tanks with containment pan, filters,
heat exchanger and sight glass. Capable of producing 50 gpm @ 3000 psi, pressure return and
circulation filters with visual indicator, 3000 watts portable generator, inline flow meter,
system safety release valve, circuit breaker panel for heater/valve bank, operator panel
with selector switch.
b. Custom built valve bank, 15 station manifold, prewired control panel and hand held remote
with the following functions:
i. Mast lower/raise
ii. Mast telescope up/down
iii. Two (2) hydraulic pilot operated directional valve and joystick for winches.
iv. Six (6) leveling jacks.
v. D.S. sub raise/lower
vi. ODS sub raise/lower
vii. Make up/Brake out tong cylinders with remote torque adjustment
viii. Flow dividers for mast raise and sub cylinders
ix. Electrical control panel, remote controls and function switches for above
x. Velocity fuses on all cylinders for fall protection.

m.
a. Air system with on (1) 60 gallon receiver to provide air to main air line and brake system.
Includes air lines, control valves, pressure gauges.

n.
a. Air compressors with direct drive, mounted on engine.
b. Reciprocal type, 28 CFM capacity

o. a. Operator’s console to include the following controls and instrumentation:
i. Main drum brake lever
ii. Main drum clutch controls
iii. Two engine throttles – One (1) hand and one (1) foot
iv. Shift levers for two 4-speed transmissions
v. Two emergency engine shut downs
vi. Hydraulic pump controls
vii. Two mud pump engine regulators
viii. Mud pump engine emergency shut down
ix. Mud pump clutch controls
x. Instrumentation Air Pressure Gauge
b. All air operated controls are located in the central part of the console and have identifying tags.
Console is located to provide good visibility of traveling block, work floor and racking board.

p.
a. One engine emergency shut down valve for emergency engine stop. Located at the
operator’s console.

q. a. A heavy duty 4-axle trailer with air suspension and 109,000 lb. total capacity.
b. All lights and brakes are equipped for attachment to the truck
c. Spring brake chambers for safety.

r. a. All tires, disc wheels, 16 tires mounted as dual. Tire rating 109,000 lbs. total, all tires inflated to 100 psi.

s.
a. One (1) two axle, single point bogey at rear.
b. Two single axles with air bags, air can be dumped for backing into position
c. All axles are 12.5 metric ton capacity.

t. a. Pedestals under front jack for rig stability. Four pedestals require. There are to be six jacks for
leveling the rig.

u. a. Six hydraulic leveling jacks to take off the load from the axle and provide horizontal position of the
rig during operation. Each jack is operated by its own controls and is equipped with screw with
thrust nut,which allows relieving hydraulic pressure from he jacks during rig operation. Controls are
located at the mast supports.

v. a. Mounted on the side of the chassis

w.
a. Braden or equal hydraulic winch with 12,000 lbs. pull load at the first layer, 336 fpm @ 65 GPM
and 2400 psi.
b. Hydraulic brake and spooler
c. Sheave is mounted on the crown

x.
a. One rotary table drive with driveshaft and two air clutches(one for rotary on and off, second for emergency
shut down)
b. Controls are located at the operator’s console

y.
a. Includes three oil-greased shafts inside full-length guard, complete with sprockets, flanges, chains and
chain gear-box with one shaft to connect to rotary table. One lower section mounted on the trailer, one upper
section mounted on the sub and one flanged driveline between.

z.
a. 1 1/8” OD drill line, 6 x19s IWRC, 3000 feet

Group II - Substructure and Assessories

A. OEM Hydraulically Telescoping 17-425 Substructure
1) Material and labor to fabricate one (1) OEM hydraulic telescoping 17-425 substructure 
as per the following:
i. Hydraulic Telescoping Substructure with:
- 425,000# Rotary beams
- 300,000# Setback.
- Clear height under rotary beams = 14’
- Transportation height 12’-6”
- Base dimensions 45’L x 12’-6”W
- Working floor dimensions 20’ x 26’
- Rathole and mouse hole locations
- Two tong backup posts
- Removable braces in cellar area.
- Provisions for attaching mast support beam.
- Supply and installation of four (4) hydraulic scoping cylinders.
- Pull out post for guy wires to front of mast.
- Removable flooring around rotary table area.
- B.O.P. Dolly and tracking.

The above substructure to be fabricated under A.P.I. 4F guidelines. Upon completion, 
substructure to be tagged with OEM A.P.I. 4F

B. Mud Boat
i. Material and labor to fabricate one (1) mud boat. Mud boat complete with:
1. Supports under jacks on carrier.
2. Pipe guides for tires
3. Pin connections to mast support beam.
4. Loading hitches on one end

C. Mast Support Beam/Brake Water Tank/Trip Tank Combo
i. Material and labor to fabricate one (1) mast support beam/trip tank/brake water 
tank combination. Combination complete with:
1. - Material and labor to fabricate one (1) break water tank. Tank to be
enclosed for rig up winterization.
a. Tank to have the following:
i. Tank bottoms to be 3/8” plate.
ii. Tanks constructed with ¼” v-crimp.
iii. Tank rims to be 4” square tubing.
iv. Access ladder
v. Man way
vi. Tong buckets, guides, and safety cage.
vii. Supply and installation of:
1. Two (2) 2 x 3 centrifugal pumps
2. Heat exchanger

2. – Material and labor to fabricate one (1) trip tank. Tank to be enclosed for
rig up winterization.
a. Tank to have the following:
i. Tank bottoms to be 3/8” plate.
ii. Tanks constructed with ¼” v-crimp.
iii. Tank rims to be 4” square tubing.
iv. Access ladder
v. Man way
vi. Tong buckets, guides, and safety cage.
vii. Provisions to mount:
1. One (1) 2 x 3 centrifugal pumps

3. – Material and labor to fabricate one (1) three runner mast support beam.
a. Support beam complete with:
i. Supports for carrier jacks and bottom base of mast.
ii. Loading hitches on both ends for tailboarding.

D. Rig Floor Stairways– All stairs to meet OSHA standards with no slip grip strut stair treads.
i. Three (3) 17’-0” stairway from substructure floor to ground level. Stairs to be built on
a 45-degree angle.
ii. One (1) 9’-6” stairway from top of the substructure to top of mud tank. Stairs to be built on
a 45 degree angle.

E. V-Door Ramp- Ramp to be fabricated to work with a 17-0” floor height substructure and
an 18” catwalk. Ramp to be fabricated with ½” plate and 3” pipe guides.

F. Catwalk– One 50’ x 5’-0” x 18” catwalk with snatch post mounted on one end.

G. Doghouse- House to be fabricated on a three-runner oilfield type skid with loading hitches on
both ends for tailboarding. House to have checker plated flooring, v-crimped wall
construction, and an arched type roof. House complete with the following:
1. 4’-0” porch on one ends
2. 2’-0” walkway on the back side of the doghouse running to full length.
3. Handrails around house perimeter.
4. One sliding doorway to rig side.
5. One swing type doorways on both ends with windows built in.
6. Two (2) windows on the back side wall
7. Knowledge box
8. Three compartment workbench.

Group III - Prime Mover Drive

A. Lighting System–Heavy Duty explosion proof Fluorescent and Mercury Vapor
Lightning System designed to use with Mast and Substructure, Mud System, complete
with Plug, Receptacles, Cable, Cable Clamps and all necessary Leads and fitting. Lighting
System consist of: Mast and Racking Platform, Substructure Lighting, Mud Tanks and
Mud Pumps, and Utility House, including Battery emergency light at Driller’s console
certified for Class 1 Division 2.

B. Engine/Generator/Part/Change Package
a. Utility House - “New” - Material and labor to fabricate one (1) utility house. House (43’x 12’ x 9’)
to be constructed on an oilfield type skid (45’x 12’x 18”) with loading hitches on both
ends for tailboarding. Top of skid covered with ¼” checker plate.
i. Parts/change house to be complete with:
1. Twenty (20) lockers.
2. Changing bench near lockers.
3. Two sets of shelves on each wall running 8’-0”.
4. One (1) bench on each wall. Bench compartments to be 5’-0” with folding bench.
Two compartments to have ventilation to the outside for paint storage.
ii. Generator house complete with:
1 One (1) 8’-0” sliding door on side of the generator location
2. Provisions for mounting one (1) electrical plug panel.
3. Radiator end of skid left open.
4. Skid designed for generator tie downs to be mounted on cross beams of skid for safety.
b. Generator – Two (2) Detroit 60 Series 14L.
c. Electrical Specifications
i. Item 1 – Clarification
1. Prime mover specifications were not provided; IEC Systems assumes the engine
and generator sizes as listed in this proposal.
2. The generator house will be designed to accommodate the “Three Tank Drilling
Rig Standard” and thus be interchangeable with all rigs that meet the standard
3. IEC System proposal is based on performing the installation in Houston, Texas.
All components listed below will be installed and tested
4. Customer will furnish the voltage regulator and voltage rheostat
ii. Item 2 – Generator Houston Electrical System For a Mechanical Rig
1.
a. 1 ea - A/C Generator Control Panel by IEC Systems for the control of two (2),
450 kW, 480 volt, 3 phase, 4-wire, 60 Hertz, A/C generators.
b. Switchgear to contain full instrumentation and will not be designed for full
parallel operation of generators.
c. Switchboard will be NEMA Type 1 enclosure with ASA #61 gray enamel finish,
designed to meet NEMA and OSHA specifications.
d. All nameplates will be constructed of plastic plates, black on white for names
and red on white for warnings.

Generator controls mounted in the switchgear will consist of:
2 - Generator Main Circuit Breakers (Gen PWR)
2 - Generator "Power Available" Indicating Lights
2 - Voltmeters
2 - Voltmeter Switches
2 - Ammeters
2 - Ammeter Switches
2 - Frequency Meters
2 - Reverse Power Relays
1 - Ground Detection System
2 - Governor Control Switches
2 - Wire to Customer Furnished Voltage Regulators
2 - Wire to Customer Furnished Voltage Rheostats
1 - Lot Current Transformers, Potential Transformers, Fuse Blocks, Fuses,
Buss Bar, Switchboard Wiring, and related equipment

Switchboard will be fully assembled, wired, and shop tested.

2.
a. 1 ea - 480 Volt, 3-phase, 60 Hertz A/C Motor Control Center, equipped with braced horizontal
and vertical bus
b. Enclosure will be NEMA Type 1 with front only access
c. Motor starters will be combination, full voltage- non-reversing with 3-pole overload
blocks, heaters, control power transformer, operating handle, fuses and start/stop
controls in cover with red "RUN" indicating lights
d. 480V MCC Motor Starters
i. Five (5) Size 4 Starters for:
1 ea 60 HP Mud Mixer 1
1 ea 60 HP Mud Mixer 2
1 ea 60 HP Desander
1 ea 60 HP Desilter
1 ea Spare

ii. One (1) Size 3 Starter for:
1 ea 40 HP Trip Tank

iii.Five (5) Size 2 Starters for:
1 ea 20 HP Drill Water 1
1 ea 20 HP Drill Water 2
1 ea 25 HP Brake Cooling Pump 1
1 ea 25 HP Brake Cooling Pump 2
1 ea Spare

iv. 480 V MCC Motor Feeder Circuit Breaker
1. 1 ea - 150 AMP 3 Pole Circuit Breaker for Camp Feeder

3.
a. 1 ea - 480V POWER DISTRIBUTION PANEL BOARD (P1)
i. 480V, 3-Phase, 3-Wire
ii. NEMA 1 Enclosure
iii. 6