services designed to maximize...

United Petro Oil Services | Coiled Tubing Services

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Services Designed to Maximize Production

Coiled Tubing Division provides our customers with a fully integrated suite of coiled tubing services, equipment and talent using a range of grades and sizes to be used in both onshore and offshore drilling. From routine maintenance, remediation, setting tools, obtaining data and specialty applications, supplies a variation of customized solutions and are skilled in combining services with nitrogen, pipeline, well testing and water treatment.

Applications

Offshore and onshore units Well cleanouts and circulation Matrix and fracture acidizing Memory logging and perforating Pipeline cleanouts and decommissioning Fluid and nitrogen displacement Nitrogen lifting Fishing, milling and under-reaming operations Cementing Paraffin and scale removal

Features & Benefits

Special operations in deepwater, HPHT, subsea and pipeline abandonment Meets special needs like low crane limits and welding coiled tubing on location Incorporates Cerberus modeling software for modeling circulation, tubing forces and

job design Records tubing life and on-the-job parameters through our Orion™ data acquisition Meets applicable industry standards


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TS-80-OFS SKID MOUNTED COILED

TUBING UNIT

Description This specification covers the requirements of a Skid Mounted Coiled Tubing Unit suitable for offshore and onshore use. The Skid Mounted Coiled Tubing Unit includes the following:

One (1) Control Cabin One (1) Power Pack Assembly One (1) Skid Mounted Hose Reel Assembly One (1) Coiled Tubing Reel Assembly One (1) Injector Head One (1) Gooseneck

MODEL ES-8-CTC SKID-MOUNTED COILED TUBING CABIN The complete control cabin is installed on a single heavy-duty steel master skid assembly. This skid features a lifting/crash frame with four-point lift system. Other features include:

Heavy-duty crash frame mounted to skid base

Skid base constructed of heavy-duty rectangular tube sections


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Skid base features, two (2) 6” tall x 12” wide forklift slots Welded drip pan integral to skid base for pollution control with 2” connection for

draining fluids ISO Blocks (included)

All connections to and from this skid terminate within the skid frame at a reasonable distance from the exterior of the skid.

All hoses (where applicable) are separated from the drip pans with support clamps to facilitate skid cleaning.

Approximate Dimensions Length 12’ 3.7 m Width 8’-6” 2.6 m Height 8’-11” 2.7 m Weight 7,500 lbs 3,400 kg

CONTROL CABIN The control center is designed to provide full operational control and monitoring of a Stewart & Stevenson coiled tubing unit.

The control cabin is approximately 7’ - 0” wide x 8’- 0” deep x 6’-6” high and is a single piece cabin. The cabin has an aluminum outer cover and is lined and fully insulated. The cabin has two (2) side locking doors with sliding windows and a large front window with protective attack-proof glass. The front window is equipped with a windshield wiper and a collapsible metal sun-visor/windshield cover with support system.

Four (4) hydraulic lift cylinders with a minimum telescoping height of 30” are installed, one at each corner of the enclosure. The control valve for the lift cylinders is located below the cabin on the side of the chassis for easy access during job rig up. Mechanical locking devices are included at each corner post to ensure the cabin is locked in place for operation.

Standard equipment in the control cabin includes:

Stainless steel, permanently etched control panel Air conditioning unit powered from power pack battery system Internal lighting system Captain’s chair One (1) bench seat with toolbox - mounted against back wall Desktop workspace Air horn


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Two (2) externally mounted work lights (adjustable from inside cab)

All hydraulic connections to and from the control cabin are via a removable hydraulic manifold. This manifold is stainless steel and features permanently engraved labeling of connection number.

The cabin includes a large removable panel below the front window which allows access to all hydraulic connections in the control panel.

STANDARD CONTROL CONSOLE A control panel is installed in this cabin. This panel is stainless steel and is fully labeled with all gauge and control information. The panel is mounted on an engineered fabricated housing that incorporates the backup pump, hydraulic valves, interface, etc. Gauges are liquid filled.

The following controls and gauges are installed in this control console:

Engine Controls:

Engine throttle Engine information display module – Oil Pressure, Water Temperature, Tachometer Engine stop button Engine emergency kill

Injector Controls:

In/out control valve (direction) joystick type Speed control pressure reducing/relieving Variable speed control Chain traction pressure control valves with individual pressure gauge Chain traction “pressure, run, dump” selector valve Chain tension pressure control valve with individual pressure indication Injector drive pressure gauge - fluid filled Auxiliary system hydraulic pressure gauge - fluid filled BOP hydraulically actuated ram control valves (Qty. 6) Blind / Shear / Seal / Slip BOP safety control valve, spring return Stripper packer hydraulic pressure control valve Stripper packer directional control valve (equipped for dual) Well head pressure gauge Circulation pressure gauge Tubing weight indicator for pipe light/pipe heavy Tubing reel tension (speed) pressure reducing valve with pressure gauge Tubing reel direction control Tubing reel brake control


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Manual levelwind override control Valve Levelwind raise/lower control Valve Inhibitor control Injector load cell fluid reservoir with hand pump Plus other miscellaneous gauges and controls for full operation of the unit

Backup Controls:

Auxiliary hand pump with reservoir for BOP pressure circuit Air-driven fluid pump to deliver up to 3,000 PSI to the stripper in case of emergency

(pump equipped with handle for manual backup) Auxiliary hand pump for injector traction circuit

JUMPER HOSE BUNDLES The following jumper hoses are included (shipped loose):

From To Length

Cabin BOP hose reel 50 ft 15 m Cabin Injector hose reel 50 ft 15 m Cabin Tubing reel 50 ft 15 m Cabin Power pack 50 ft 15 m

Hoses are protected by a Cordura covering.

MODEL PPS-500 SKID-MOUNTED COILED TUBING POWER PACK The Stewart & Stevenson Model PPS-500 is a skid-mounted coiled tubing power pack. The unit is equipped with a total of 500 BHP.

While operating at any speed within the speed range of the engine in any gear, there shall be no components, which vibrate with excessive amplitudes in resonance with the forcing vibrations of the engines or pumps. Also, there shall be no excessive rotational vibrations of the engine-transmission or pumps due to transmitted torque and the flexibility of the frame and mounting systems.


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The unit is capable of operating in ambient temperatures up to 131° F (55° C).

Approximate dimensions Length 7’ 8” 2.43 m Width 8’ 6” 2.6 m Height 8’ 6” 2.6 m Weight 11,500 lbs 5200 kg

MASTER SKID The power pack is installed on a heavy-duty steel master skid assembly. This skid features a lifting/crash frame with four-point lift system. Other features include:

Heavy-duty crash frame mounted to skid base Skid base constructed of heavy-duty rectangular tube sections Skid base features, two (2) 6” tall x 12” wide forklift slots Welded drip pan integral to skid base for pollution control with 2” connection for

draining fluids Removable fibergrate roof built into crash frame above power unit A ladder is integrated into the frame for access to the top of the skid ISO Blocks (included)

All connections to and from this skid terminate within the skid frame at a reasonable distance from the exterior of the skid.


DIESEL ENGINE Installed on this skid is a diesel engine rated as follows:

Detroit Diesel Series 60, turbo charged diesel engine rated 500 BHP at 2100 RPM. Electronic Engine Management System

Lube oil pump and distribution system with engine oil pan being provided with a drain and valve to the edge of the skid.

Fuel pump Heavy-duty dry type air cleaner assembly with filter element restriction indicators and

stainless steel moisture eliminators. Dipstick and oil filler cap Fuel filtration system Air start system Alternator Engine governor - electronic Fan assembly


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Exhaust muffler assembly Exhaust blankets Engine lift brackets

A 12 CFM air compressor with 30 gallon capacity air receiver and all ancillary air items and fittings including a lubricator group is installed between air receiver and starter. Other accessories include an air dryer, isolator valves, filters, and regulator. The air compressor is designed to maintain 120 PSI in air receiver. In addition, a connection is provided for remote charging of the air receiver. A heavy-duty radiator is vertically mounted with fan, fan belts, and surge tank.

Mounted on the rear of this diesel engine is a dual output hydraulic drive.

Shutdowns are included for: engine overspeed, low oil pressure, and high coolant temperature.

FUEL SYSTEM A ninety (90) gallon fuel tank complete with a top-mounted fuel level indicator, air breather cap, suction filters, and return filters is mounted on this skid. This fuel system is equipped with all necessary valves and filters including an external fuel source hook up.

HYDRAULIC SYSTEM Mounted on the rear of the engine is a pump-drive assembly designed to provide hydraulic power. The injector is powered by a bi-directional, axial piston, pressure compensated, closed-loop hydraulic pump mounted on the output pad of the hydraulic pump-drive.

An axial piston, pressure compensated hydraulic pump mounted on the second pad of the pump-drive provides power for the following:

Tubing reel hydraulic motor Levelwind override hydraulic motor Levelwind lift control hydraulic cylinders Hose reel hydraulic motors

Control cabin lift cylinders BOP Rams Stripper/Packer Injector chain traction system The above hydraulic systems are controlled by proportional control valves with built-

in directional and flow control functions and inlet relief valves.

ACCUMULATOR SYSTEM A high-pressure accumulator system with three (3) 10 gallon accumulators is installed to provide a constant backup hydraulic pressure to the hand pump system. This accumulator system is pre-charged with nitrogen.

HYDRAULIC OIL FILTRATION AND COOLING


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All hydraulic oil circuits will include suction line filters with stainless steel 100 mesh elements to remove particles. Elements will be removable for inspection and cleaning. Filtration of returning oil flows from injector and reel circuits immediately prior to entering main hydraulic tank will be carried out with the required filter assemblies. High-pressure filters are installed to protect injector motors and pump. All filters are fitted with a self-activating bypass valve and an indicator to show relative state of fouling of element.

Also supplied are the other main components for a hydraulic system:

A hydraulic oil reservoir with sight level gauge, filter breather cap, return filters, and drain lock

A hydraulic oil cooler All necessary hydraulic valves, gauges, hoses and piping

MODEL RS-121, SKID-MOUNTED COILED TUBING REEL

NOTE: Image is an example of Stewart & Stevenson equipment. Specifications contained within this proposal will determine final configuration of the unit.

The Stewart & Stevenson Model RS-121 skid-mounted coiled tubing reel is designed for transportation on a customer supplied trailer assembly or for offshore use. This package includes installation of bearing assemblies and bearing carriers, reel drum, reel level wind system, and drive motor/brake system.

The overall design of this reel incorporates m o d u l a r reel design features including quick release chain guards, quick stab swivels, motor tensioning plate assembly, and modular bearing assemblies which are required for a modular or cartridge type reel replacement.


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Change-Out System: The components are designed to reduce removal/installation time associated with the reel drum. The unit is capable of operating in ambient temperatures up to 122° F (50° C).

Approximate tubing capacities for this reel are as follows:

Tubing Diameter Capacity 1.25” 27,200 ft 1.5” 19,500 ft 1.75” 14,500 ft

NOTE: Maximum dry weight of tubing on the reel is NOT to exceed 73,000 lbs.

Physical dimensions of this reel drum are as follows:

Approximate Dimensions Length 15’4”

Width 8’6”

Height 12’6”

Weight(empty) 16,000 Ibs

Outer Flange Diameter 121”

Inner Core Diameter 70”

Inner Flange Width 69”

NOTE: Other reel sizes available.

SKID This Reel Unit Package is installed on a heavy-duty skid complete with drip pan, and integral pockets for fork lift applications. A heavy-duty steel support frame is built on the skid base to support the reel assembly. This support frame features a two-point lift arrangement that is equipped with a removable spreader bar to allow the lift of the complete skid and reel assembly. The skid enclosed in a removable protective crash frame. The base and crash frame are constructed with heavy-duty rectangular steel tubing sections.

The skid base has a 30° angle on the outside front and rear skid members.

Steel drip pans welded into the skid provide for fluid retention and 2” drain plugs provide for easy cleaning.



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All connections to and from the unit terminate within the skid frame at a reasonable distance from the exterior of the skid.

ISO Blocks (included)

TUBING REEL PACKAGE A tubing reel package with the following basic specifications is mounted on the skid:

Two heavy-duty steel support frames are welded to the skid to support the reel core. Each support frame includes a bearing box receiver to accept the Stewart & Stevenson machined steel roller bearings mounted on the reel shaft.

Two steel roller type heavy-duty bearing assemblies are installed on the heavy-duty reel support frames for supporting the tubing reel shaft. Each bearing is installed in a permanently mounted bearing carrier assembly.

A levelwind assembly that may be hydraulically raised or lowered to suit pay off angle by two hydraulic cylinders is mounted on the heavy-duty reel support frame. An over center valve is installed in the circuit to prevent the levelwind assembly from collapsing in the case of a hydraulic failure. The levelwind mechanism incorporates a diamond lead screw that is driven in synchronization with the drum speed and rotation by a chain and sprocket and friction clutch arrangement powered from the reel main drive shaft. A back-up hydraulic motor for levelwind override purposes is connected to the diamond lead screw.

A mechanical depthometer assembly with a five-digit resettable mechanical type readout is installed on the levelwind mechanism.

A radial piston hydraulic motor with integral planetary gearbox and hydraulic brake is mounted on the skid base on a tensioning (tightening/loosening) motor pad. This hydraulic motor drives the reel via a heavy-duty chain and sprocket drive.

Installed on the skid is an air-powered (from customer supplied air source) ten (10) gallon capacity inhibitor or diesel fuel storage tank. This tank is connected to a tubing oiler stuffing box that is installed on the levelwind system.

Guards are installed over all exposed drive systems where required.

TUBING REEL The outer and inner circumference of the outer reel and the spokes are constructed from structural steel.

The reel shaft itself is high-tensile alloy steel tubing. One end of the shaft is set up for installation of a 1-¾” bore rotary swivel. The shaft is non-pressurized and is designed to accommodate wireline operations.

Installed on the shaft are a reel drive sprocket and a levelwind drive sprocket.

Installed on one end of the shaft is a 1-¾” full bore circulating swivel rated 15,000 PSI. This swivel has a quick stab configuration and is held in place by a single retainer bolt.


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The reel’s internal plumbing arrangement includes a tubing connection to an internal 2” plug valve via a 2” Fig 1502 wing half connection. A 2” tee connects the plug valve to the reel.

shaft and provides for ball and pig insertion. The ball and pig inlet is blanked off with a 1502 union half.

The external plumbing arrangement consists of a circulation swivel connected to a manifold. The manifold is connected to two 2” x 2” plug valves with 2” Fig. 1502 connections (rated for 15,000 PSI). The manifold assembly is secured to the frame by clamps. A gauge connection with a 4:1 pressure debooster is included for safety.

The tubing reel is supplied with a chain and boomer transport locking system. A

Spreader bar and sling are provided.

MODEL HRS-3, SKID-MOUNTED COILED TUBING HOSE REEL The Stewart & Stevenson HRS-3 is a hose reel and hose package engineered for use with injector, BOP, and stripper assemblies. The skid is suitable for offshore use and is equipped with two forklift pockets and a crash frame.


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REEL ASSEMBLY WITH SWIVEL JOINTS The two-section hose reels are hydraulically powered through a speed-reducing chain-drive arrangement with locally operated direction and speed control valves. The arrangement uses a heavy-duty SAE 80 chain. The reel is supplied with bearing and shaft retainers and is designed to hold the injector control hoses, BOP control hoses, and stripper packer control hoses.

Swivel joints incorporated into the reels eliminate the need to disconnect hoses while the reel is turning. A stainless steel bulkhead containing hydraulic quick disconnects provides for connection to a Stewart & Stevenson control cabin and power pack assembly.

Approximate Dimensions Length 75” 1905 mm Width 102” 2591 mm Height 77.5” 1969 mm Weight 7,500 lbs 3,400 Kg

HOSES The following control hoses are installed on the hose reel:

Quantity Length Function 2 125 ft 38m Injector drive 11 125 ft 38m Injector/stripper control 1 125 ft 38m Injector control return 2 125 ft 38m BOP actuator (pipe ram) 2 125 ft 38m BOP actuator (slip ram) 2 125 ft 38m BOP actuator (shear ram) 2 125 ft 38m BOP actuator (blind ram) 4 125 ft 38m BOP actuator (spare)


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Hoses are equipped with quick coupler assemblies and Cordura protective covering where applicable. Heavy-duty lifting slings are included. ISO Blocks (included)

MODEL M-80, INJECTOR HEAD

Injector Specifications Length 52” 1,320mm

Width 55” 1,400mm

Height 90” 2,290mm

Weight 7,250 lbs 3,290 kg

Pull Force (working) 80,000 lbs 36,300 kg

Snub Force 40,000 lbs 18,100 kg

Max Speed up to 200 ft/min 60m/min

Chain Type Varia-Block III

Motors Twin axial piston

GENERAL The injector pivots on one side of the injector frame base and a hydraulic load cell sensor is installed on the other side of the injector. The pivot bearings are lubricated.

The injector is installed in an outer lift frame with steel base, guards, and a four (4) point lifting system, access ladders, and decking of the top of the protection frame.

The injector is equipped with a bottom flange connection and adapter for use with a stripper/packer assembly.


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Compression cylinder piping is done in all stainless steel tubing to lessen the likelihood of a control line rupture on location.

Velocity fuses are provided in the control circuit lines to prevent loss of control in the event of line failure. Fuse reset valves are provided for each circuit.

All hydraulic connections on the injector are piped to a quick disconnect coupling panel, using bulkhead fittings installed at the bottom front side of the injector. All hoses will be supported by chain and hook arrangement so that hose connections do not carry a heavy load.

TOP DRIVE/BRAKE SYSTEM The top drive/static brake assembly consists of two (2) variable displacement, axial piston hydraulic motors, double reduction planetary gear reducers, and spring applied, pressure released, multi-disc brakes. These assemblies are flange mounted to the injector body and drive the carburized drive sprockets and timing gears.

The drive motors are protected by high-pressure filters with reverse flow check valves. Hydraulic load holding counterbalance valves are installed at the motor ports to hold the

tubing load (in and out hole) when the brakes are released.

DRIVE CHAIN DESCRIPTION Steel plate body construction with full access side openings enables easy removal of the drive chain and tubing blocks.

The drive chains and injector blocks may be fitted for tubing sizes of 1” OD through 2-⅞”

when fitted with the Varia-Block III chains.

Tubing Recommended Inserts Tubing Guide1

1” TG-72

1-¼” TG-72

1-½” TG-72

1-¾” TG-90

2” TG-90

2-𝟑 𝟖⁄ ” TG-108

2-𝟕 𝟖⁄ ” TG-120


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The traction chains are designed to transmit a force of not less than 80,000 lbs in the out-of- hole direction and 40,000 lbs in the in-hole direction from a stalled position. Slippage of the tubing relative to the gripper blocks w i l l not occur at maximum pulling force with the surface of the tubing and blocks in a diesel wet condition. The force exerted by the chains on the tubing will not mark the surface of the tubing.

The two (2) drive chains are of the roller chain type with connecting links to allow for replacement of the drive chains and injector blocks while the tubing remains in the injector.

Separate connecting shafts connect the tubing blocks to each of the drive chains instead of the more common single through shaft, which causes adverse stressing of the tubing blocks in the case of misalignment of the drive chains and coiled tubing.

Clearance between the tubing blocks when fully retracted allows for the passage of the various tools that are normally used in coiled tubing strings. The feature also allows easier tubing stab-in into the injector.

The tubing blocks are the new Varia-Block III design. The new design incorporates a longer contact area per block to maintain contact with two roller bearings at all times, and as many as three. The new design reduces wear, prolongs life, and should significantly reduce overall maintenance costs of the injector head and some of its parts

CHAIN TRACTION SYSTEM Chain traction is achieved by the use of a skate/roller bearing assembly that applies pressure to the backsides of each drive chain. These roller assemblies are each compressed by hydraulic cylinders. The eight (8) hydraulic cylinders are plumbed in two (2) sets of four (4) hydraulic cylinders. If a failure in the hydraulic cylinders or tubing occurs, one set can be isolated from the other and traction maintained on the tubing. Each hydraulic circuit incorporates an accumulator to prevent variations in tubing diameter to vary the hydraulic pressure. Each control circuit is protected by a velocity fuse to prevent loss of control due to hose failure. The hydraulic cylinders are controlled by a single pressure control device at the panel.

The roller skate assemblies use large 2-⅜” diameter roller bearings. The use of these large roller bearings with the new chain and block design ensures that two rollers are in contact with each tubing block prior to transition from one bock to the next at all times. This feature prevents pivoting and clattering of the tubing blocks as they pass over the drive chain sprockets and reduces the stress on the tubing caused by the gripping of the tubing blocks on the tubing. The tubing roller bearings are equipped with full lip seals for greater grease capacity and sealing capability and use large rollers with increased load ratings.


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CHAIN TENSIONING SYSTEM Chain tensioning is achieved by a direct vertical movement of the bottom drive chain idler sprockets by two (2) pairs of hydraulic cylinders powered by a single hydraulic circuit with back-up accumulator for ease of operation. This feature gives a greater range of drive chain tensioning without reducing the drive chain contact on the drive chain drive and idler sprockets and thus increases the life of the drive chains.

INCLUDED ITEMS Multiple drains with plugs in bottom of drain pan Hydraulic load cell attachments Safety belt hooks at top of injector, recessed below plate Chain attachment padeyes on top four (4) corners of frame, directed inward Automatic brake release with injector motor pressure Fold-down work boards Tubing odometer Grease manifold Slings, shackles, and chain master links Fall arrest

MODEL TG-72, GOOSENECK TUBING GUIDE The tubing guide is a standard 72” radius gooseneck with heavy-duty steel rollers in both the lower and upper sections. Each roller is equipped with a grease point for ease of maintenance. The tubing guide mounts directly to the top of any Stewart & Stevenson injector head to provide a smooth transition from the tubing reel to the injector head. It is designed to work with any tubing size up to 1-¾”.

The TG-72 is a two-piece design including heavy-duty pins and hinges. The guide can be manually folded when rigged down to save space.

The tubing guide is supplied with support legs that extend from the injector head base to the forward edge of the guide. The legs are specially engineered to be lightweight and strong.


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TG-72 Specifications Length 124” 3,150mm Width 10” 250mm Height 75” 1,900mm Weight 700 lbs 320kg Nominal Radius 72” 1,830mm Tubing Size 1”to 1¾”

INJECTOR TRANSPORT SKID Provided with the injector head is an injector transport skid. This injector transport skid will allow the storage of the injector head with stripper/packer mounted, the quad blow out preventer, gooseneck, and other accessories. This equipment will be mounted on this master skid equipped with two forklift pockets and a four point lift frame.

ISO Blocks (included)

UNITIZATION AND COMPLETION The above unit shall be fully assembled, unitized and completed to Stewart & Stevenson’s specifications. This shall include the following items (if these items are already detailed above, they shall not be duplicated):

Decking on the unit Installation of lights for 24 hour use Installation of all other electrical systems


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Installation of all pneumatic systems Installation of all hydraulic systems Installation of all necessary hose racks as per available space Supply of all operating oils, coolants and other operating fluids All steel and miscellaneous fittings to complete the unit All labor to complete the unit

General workmanship will be of good quality and appearance with the following listing a number of standards adhered to by Stewart & Stevenson:

Flame cut edges shall be ground smooth Sharp corners and edges to which operators and mechanics are vulnerable shall be ground smooth Bolt holes shall be drilled or precision cut (laser, plasma, etc.) and sized according

to Stewart & Stevenson engineering standards Welds shall be of good quality and of sufficient strength Use self-locking nuts where applicable All hoses will be well supported with support type clamps No sweated or brazed type hydraulic fittings will be used All hydraulic hose assemblies will have swivel ends All hoses will be protected by well-secured rubber sleeves to prevent rubbing by frame, etc. Hydraulic reservoir to be constructed plate with sight level gauge, cleanouts, vent, fill

cap, etc. The priming and painting of the equipment as per Stewart & Stevenson’s standard

paint specifications Level 1 – Urethane Paint System The complete testing of the equipment at the Stewart & Stevenson, plant in

Houston, Texas, USA.

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