Central Alberta Well Services Corp.

 

 

 

550 Double

The CWC WTD 550PB rig is a self-propelled, back-in type unit. It is manufactured with wide flange main beams and an all welded frame. Heavy-duty front and rear bumpers equipped with heavy-duty tows are welded to the carrier frame. It also includes integral stairs built into carrier frame - one on each side. The carrier is fitted with 24 inch wide aluminum side folding walkways, with aluminum handrails and toe guards either side, driller's side removable aluminum stair to ground, complete with handrails, jack stand pad carrier, and one handrail rack. Levels are installed on front and rear bumpers and a device for measuring wellhead center is also provided.

The unit's highway lighting package features turn signal lights, clearance lights, headlights, slop/brake lights, back-up alarm, and reflectors. The lights are fully wired to the controls and switches are located in the driver's cab. All wires are routed through cable hangers located in the carrier frame and are shielded to protect them from damage.

Options included with the unit are: 18" aluminum off driller's side walkway, complete with aluminum handrail, 24" driller's side folding aluminum walkway, complete with aluminum handrails in lieu of 18" walkway, fixed hydraulically elevated, aluminum driller's platform c/w aluminum stairs and handrails. This driller's platform is larger than the 350's platform and has aluminum handrails up to driver's cab on driller's side only. One set of heavy duty aluminum stairs from off driller's walkway to ground complete with handrails is part of the stair option.

Driver's Cab

The rig is fitted a with a single-man insulated driver's cab. This is equipped with a steering column and steering wheel, acceleration and brake pedals, turning signal switch, adjustable bucket seat with safety belt, dome light, windows (complete with a roll-up window in the door and a sliding side window on the off driller's side), cab heater and a front 12Velectric wiper. The cab is also equipped with one fire extinguisher, one first aid kit and flares.

The installed control panel consists of the following:

Gauges:

Speedometer, Tachometer, Transmission Oil Pressure, Transmission Oil, Temperature, Fuel, Air Pressure, Engine Oil Pressure. Engine Water Temperature, and Volt.

Controls:

Head Light, Dome Light, Dimmer Control, Fan, Wipers, Washer, Low Air, Air Horn, Engine (Start/On/Stop), Shutdown Override, Diagnostic Request, Emergency Shutdown, Differential Lockup, Park Brake, and Lever Gear Selector (Transmission).

Indicator Lights:

High Beam, Check Transmission, ABS, Check Engine, Shutdown Engine, Low Coolant, and Low Air (c/w audible alarm).

Running Gear

The carrier's running gear consists of three (3) front non-drive steering axles with rear wheel tri-drive axles.

The running gear suspension is a combination of Reyco Spring Suspension and Hendrickson walking beam suspension. All driveline shafts use Spicer 1710. Front steer axles are Meritor Easy Steer with "Q Plus" braking, rated at 22,800 Ib per tri-steer axle. The front axles are equipped with six (6) 445/65R22.5 tires.

Total front axle capacity is 68,400 Ib.

The rear drive axles are Meritor single-reduction tri-drive axles with "heavy duty Q Plus" braking rated at 20,000 Ib per axle. The rear wheels are fitted with twelve (12) 12R22.5 tires.

Total rear axle capacity is 75,000 Ib.

All axles are equipped with Anti-lock Braking System (ABS). The ABS optimizes braking performance under demanding conditions or emergency braking, and provides maximum control on hazardous, slippery surfaces.

The rear axles are fitted with Driver Controlled Differential Lock (DCDL).

All rims are aluminum.

Running Gear options Include:

• Tridem Rear Wheel Tri Drive Axles (10 x 6 Drive)
• Four (4) 12R22.5 tires per axle.
• All axles are equipped with anti-locking braking system (ABS). The ABS optimizes the braking performance under demanding conditions or emergency braking and providing maximum control on hazardous, slippery surfaces.
• Power train saver with a spare set of fuses.

Leveling Jacks

This unit is equipped with four (4) mechanical locking hydraulic jacks and two (2) drop-down mechanical belly jacks. The jacks are mounted on the carrier frame for leveling and support during rig operations. The jacks are located at the rear bumper and behind the rear steering axle.

Working Platform

Platform dimensions are 11'-5" x 8' with folding wings on each side. There is a 26" x 26" square opening in the floor with a sliding door. The adjustable folding working platform is mounted to the mast base and hung in the working position with cables and chains from the racking board to allow adequate ground clearance for required elevation, complete with removable square tubing handrails. The handrails are interchangeable from side to side .

Optional features include one (1) adjustable working platform - to 13' elevation, one (1) set of telescoping aluminum stairs from working floor at 13' to ground level with aluminum handrails, and a removable wind wall frames with tarps.

Fuel Tank

This unit is fitted with one 100 gallon, cylindrical aluminum fuel tank. This is mounted on the off driller's side and is equipped with lines and check valves.

Tool Boxes

The carrier is equipped with one (1) tool box, 36"L x 48"H x 10-1/2"W) mounted on the carrier deck.

Winch

An 8,000 Ib hydraulic planetary winch complete with two 8" sheaves and controls is included with this unit. Included options are: Personnel Handling approved hydraulic winch and one (1) additional 8,000 Ib auxiliary winch.

Deadline Anchor (Drum Type)

One (1) drum type deadline anchor with line clamp to fit deadline used with rig, is mounted directly to carrier frame .

Engine

The engine is a Detroit Diesel Series 60 DDEC. The six cylinder, 14 liter diesel engine is rated at 525 BHP@ 2100 RPM. This fully integrated heavy-duty diesel engine with electronic controls has excellent fuel consumption, durability, and low emissions.

The engine comes complete with:

Alternator (12V)	Muffler
Rigsaver	Spark arrestor
EPA Nonroad Emissions Certified	Direct drive fan
Water filter	Air Filter
Power steering pump	Radiator (40°C / 104°F)
12 Volt electric starter	Oil Spinner
Air compressor	Fuel pro
Tachometer

Engine Specifications

Included options are: an air fan clutch assembly In lieu of a direct drive fan, a Webasto diesel fired engine pre-heater, a circulating block and oil pan heater, an aluminum engine hood (which covers the radiator, engine and transmission), four (4) aluminum side covers, and an engine and transmission drive arrangement mounted on common skid as one unit for ease of removal.

Transmission

The Allison Transmission Model OFS 4700 Series (electronic) straight through transmission comes complete with drop box and disconnect to the rear drive axles. This transmission is designed for use with diesel engines up to 410 kW (550 BHP). The five forward ranges and one reverse make it best suited for off-highway applications.

The electronically controlled transmission has both a fully automatic mode for driving and a manual shift mode for hoisting. The transmission is equipped with converter lock-up feature for maximum efficiency operation.

Power Take-Off

The Chelsea 852 Series power lake-off is transmission mounted and pneumatically controlled.

Right Angle Gear Box

The Crown 550 RAGB-HS Heavy Duty Right Angle Gear box is designed for a Double Drum Drawworks Drive Arrangement.

The right angle gear train is a spiral bevel gear set with hardened steel gears. The gearbox case is fabricated from high strength heavy steel tubing to minimize distortion. Gears and bearings are lubricated by oil bath arrangement. All shafts are machined from high strength heat-treated steel. Input shaft bearings are double Timken with straight roller bearings at the pinion end. Output shaft is supported on spherical bearings.

Gear Box Specifications:

• Gear Type: Spiral gears
• Gear Ratio: 1.04:1

Model CE550DD Drawworks

The WTD-00550 rig features a Crown CE550DD, double drum conventional style drawworks with band brakes. The drums are dynamically balanced and the brake rims are finish-ground to round after installation to ensure even and positive braking. The main drum is supplied with 1" Lebus grooving. A line pocket is provided in main drum.

Hoist bearings and brake mechanisms are lubricated with a centralized Alemite system. Chain lubrication is accomplished with an oil bath system located in fully enclosed chain guards. The brake flanges are a removable type. Each flange is heat-treated and has been subjected to a Brinell hardness test, ensuring long life.

The 330-degree wrap, fully equalized adjustable brake bands are actuated by a linkage which increases the driller's mechanical advantage as the brake handle moves through its operating arc.

All drum shafts are made from high strength, heat-treated and stress relieved, chrome moly manganese steel.

Drum shaft bearings are long life, double row, self-aligning roller bearings.

All components are independently assembled using only parts that have passed demanding quality control and inspection departments.

Drawworks Specifications:

Main Drum:

Model:	Crown CE550DD
Size:	16" x37"
Wireline Size:	1"
Drum Clutch:	Twin Disc PO 224
Brake Size:	42" x 12" brake rims c/w Brake Bands
Drawworks Speeds:	Five forward, one reverse
Input Drive Chain:	1-1 /4" pitch. double strand
Inner Drum Drive Chain:	1- 1/2" pitch, double strand
Cooling:	Splash Cooling
Auxiliary Brake:	Pneumatic Disc Assist Brake (Dual, 48 in)

Sandline Drum:

Model:	Crown CE550DD
Size:	13" x 42"
Drum Capacity:	16,500" of 9/16"
Wireline Size:	9/16"
Drum Clutch:	Twin Disc PO 218
Brake Size:	42" x 8" brake rims c/w Brake Bands
Cooling:	Splash Cooling

Options included are: main drum/sandline drum air lockout, drip pan with drain mounted under sandline drum, a tubing line, 1,400 ft of I" 6x26 IWRC XIP, and a 13,500 ft sandline of 9/16 in 6x5FC.

Mast

The WTD-00550 Workover Rig is equipped with a 107' x 240,000 Ib freestanding telescoping mast with a fixed base. It can also be supplied with a guyed configuration. It is constructed with hollow structural steel framing , and is designed and built in accordance with American Petroleum Institute (API) Standard 4F.

Alignment with the well center is achieved through adjusting the mast till angle by tightening or loosening the screw jacks provided between the mast and mast base.

The mast is equipped with a ladder mounted on the off-driller's side c/w access pad to racking board and rod basket. The crown platform and handrails are included with the crown frame assembly. The crown platform provides safety when servicing crown sheaves. The mast is also equipped with a block cradle, Geronimo escape line securing device, fall arrest post (as per OH & S and OSHA regulations) and 9/16" load lines with turnbuckles.

A mast tilt indicator is installed in mast for measuring lilt angle.

A 3-stage. chrome plated. hydraulic cylinder is used for raising the mast and a scoping cylinder raises the top section of the mast. The raising cylinder is equipped with safety chokes to prevent free-fall in the event of a complete loss of hydraulic pressure.

The crown platform provides safety when servicing crown sheaves. The crown block assembly comes with:

Three (3) 24" fleet sheaves	One (1) 24" deadline sheave
One (1) 30" fastline sheave	One (1) 24" sandline sheave

The crown block assembly uses nylon composite sheaves, grooved for a 1 inch line (the sand line sheave is grooved for 9/16 inch wireline).

The sheaves are mounted on tapered roller bearing inserts; thus bearing failure will not damage the sheave. Fittings are provided for individual greasing of bearings.

Mast Specifications:

Hook Load:	240,000 Ibs with 6 lines
Height:	107 ft
Line String Up:	4,6 or 8
Wind Load:	69 MPH (60 knots) as per API 4F

Options included with this unit are:

• 2-piece load beam with two (2) turnbuckles
• Two (2) flag poles
• Two (2) DBI Sala fall arrests
• Folding bracket for secondary fall arrest
• Four (4) high tensile crown guylines - 9/16" x 195'
• Two (2) high tensile racking board guylines - 1/2" x 155'
• One (1) escape line - 1/2"
• Two (2) 230". winch lines - 1/2" with 10" tail chain and safety lock

Racking Board

This unit is equipped with an automatic erecting racking board.

Capacity:

• 16,500 ft of 2-7/8 Inch tubing positioned for use with Range II tubulars in doubles

Racking Board options include: a rear escape, an aluminum wind walls and safety cables in lieu of chains for fingers.

Rod Board

Specifications:

• Capacity for 11 ,700" of 1" rods
• All rod fingers spaced for 1", 7/8" or 3/4" rods
• Complete with man basket. rod board foot pedal, regulator, lines, rod transfer cylinder, and one (1) 3/8" rod transfer cable
• Dual rod hangers positioned to handle 25' rods in triples
• Air supply for rod transfer cylinder

Included options are rod finger sleeves to accommodate 5/8". diameter rods, an escape platform out of the back for escape buggy, and safety cables in lieu of chains for fingers.

Make-Up and Break-Out Assembly

The Make-Up and Break-Out option on this unit features:

• Two hydraulic cylinders, sheaves, rollers, and cables.
• Mounting brackets back of mast.
• Hydraulic controls for make-up and break-out functions.

Standpipe

Standpipe option includes a 2" x 5,000 PSI standpipe, with half unions, and safety cable.

Control Panel

The pneumatic operator's control panel is mounted at deck level (carrier). It is designed to function in all weather conditions from sub-arctic to tropical climates (-40^OC to +55^OC).

The panel consists of the following controls and gauges:

Controls

• Hydraulic pump (on/off) (air)
• Gear selector, transmission (air)
• Emergency Stop (air)
• Engine stop, start (air)
• Fast idle (air)
• Horn (air)
• 2 Winch (up/down) (hyd)
• Slips (in/out) (air)
• Slips air regulator (air)
• Hoist (up/down) (air)
• Assist brake (air)
• Disc assist
• Disc assist regulator
• Disc assist selector

Gauges

• Main Air pressure
• Hydraulic pressure
• Slips Air pressure
• Disc assist pressure

Included control panel options are: sandline depthometer, line weight indicator (hydraulic load cell) with 1" and 7/8" dial plates, an a BOP ram saver which alerts the service rig operator that the BOP pipe rams are closed and the drawworks main clutch has been engaged.

Hydraulic System

The hydraulic system on this rig consists of a 210 gallon (nominal) hydraulic tank, a hydraulic gear pump with rated capacity of 50 gpm, hydraulic inline filter, filler/breather, all related valves, pressure gauge and hydraulic control valves.

The main section of the hydraulic pump supplies power for the carrier operations and mast setup controls.

Air System

Air supply for normal rig operation equipment consists of:

• Engine mounted air compressor
• 60 gal air receiver system
• Pneumatic plumbing, (valves, drains and gauges)
• Single air dryer
• Alcohol injector is included

Electrical System

Equipment selection and classification of areas is in accordance with current API Standards and North American Electrical Codes.

Options: Any additional fixtures as well as an optional 120/206V, 60 Hz distribution panel are available. The optional distribution panel includes breakers for mast lighting, utility outlets, engine enclosure lighting, connection to a 60A 4W receptacle and spare breakers.

Included electrical options are as follows:

• Where practical, the lighting wiring is in rigid conduit with flexible terminations in liquid tight flex or rough service cord. RL 80 connectors shall be used for mast light connections.
• Distribution panel (120/208V, 60 Hz) with breakers for mast lighting, utility outlets, engine enclosure lighting, connection 10 60A 4P 4W receptacle, and some spare breakers for plug-ins on side of box
• Two (2) 2' fluorescent lights under engine hood
• Eight (8) 4' fluorescent mast lights and one (1) 2' fluorescent mast light
• One (1) 400 Watt metal halide light to illuminate carrier
• One (1) 400 Watt metal halide light to illuminate work floor
• One (1) red incandescent crown light
• Switch for mast lighting with four (4) receptacles at rear of carrier
• Two (2) plug-ins under engine cover

Auxiliary Equipment:
Pump System
Utility Skid
Doghouse Skid Combination Unit