COSCO WELLHEAD CONNECTOR SYSTEMS

For Electrical Submersible Pumping Systems

CANADIAN OILWELL SYSTEMS COMPANY LTD. 9760–60 Ave, Edmonton

Alberta, Canada T6E 0C5 Tel: (780) 430-0840

Fax: (780) 430-0367

CANADIAN OILWELL SYSTEMS COMPANY LTD. 9760–60 Ave, Edmonton

Alberta, Canada T6E 0C5 Tel: (780) 430-0840

Fax: (780) 430-0367

INTRODUCTION COSCO offers a complete line of rugged Electric Feed-through Systems for wellheads used in Electrical Submersible Pump Applications. COSCO connector systems represent the utmost in reliability, simplicity, versatility, and convenience. They are adaptable to any application, onshore or offshore under any condition. RELIABILITY The lower connector is the key to the reliability of COSCO Connector Systems. Its unique design eliminates the need for a connection in the annulus, thereby eliminating a weak spot. Corrosion resistant stainless steel is used for the housing and flange of the connector, while the compound used to insulate the electric conductors and provide the pressure seal inside the body of the connector is not susceptible to swelling or breakdown caused by wellbore fluids. The unique construction of the connector includes a Torlon face block to protect against pressure damage. EASE OF INSTALLATION The lower connector bolts to the bottom of the tubing hanger by means of a flange. The upper connector bolts to the top of the tubing hanger and the connection between the upper and lower connectors is made within the electrical connection port of the tubing hanger. The lower connector pigtail is spliced to the down hole power cable. No special tools are required for installation. VERSATILITY Several different configurations are available to meet any need: • Two-piece 90-degree top entry • Three-piece 90-degree top entry • Side entry systems • Fail safe systems A variety of pigtail cable types and sizes are available to meet any application or service. LOW PROFILE DESIGN All COSCO connector systems allow a lower profile tree assembly. The side entry system is specifically designed for applications where low tree profiles are critical, such as offshore applications. EXISTING WELLHEADS COSCO connectors can be installed in most existing wellhead equipment to convert for use with submersible pumps or to replace other types of electric feed-through systems.

CANADIAN OILWELL SYSTEMS COMPANY LTD. 9760–60 Ave, Edmonton

Alberta, Canada T6E 0C5 Tel: (780) 430-0840

Fax: (780) 430-0367

TOP ENTRY CONNECTOR SYSTEMS Top entry connector systems are used to convert existing wellheads for use with electrical submersible pumps or to replace existing electric feed-through systems. COSCO “Universal” tubing head adapters also use the top entry system.

90-DEGREE UPPER CONNECTOR

LOWER CONNECTOR

TUBING HANGER

TWO PIECE 90-DEGREE TOP ENTRY ELECTRICAL SYSTEM

The two piece, top entry system is used where a tubing adapter (bonnet) is not required. It consists of: 1. A 90-degree upper connector, and 2. A lower connector The lower connector bolts to the bottom of the tubing hanger and the upper connector bolts to the top of the tubing hanger. The connection between the two connectors is made within the electrical connection port of the tubing hanger. In this configuration, the tubing hanger remains exposed in the top of the tubing head spool. To convert existing wellheads to the two piece, top entry system, it is required to change out the tubing hanger.

2-137

2-141

2-137

2-140

O-RING GUIDE

PATENTED

CANADIAN OILWELL SYSTEMS COMPANY LTD. 9760–60 Ave, Edmonton

Alberta, Canada T6E 0C5 Tel: (780) 430-0840

Fax: (780) 430-0367

THREE PIECE 90-DEGREE TOP ENTRY ELECTRICAL SYSTEM

The three piece, top entry system is used where a tubing adapter (bonnet) is required. In addition to the upper and lower connectors, a transmission element is used to provide the required extra length to extend through the bonnet. To convert existing wellheads to the three piece, top entry system, it is required to change out the tubing hanger and bonnet.

OPTIONAL FLANGED TUBING OUTLET

90-DEGREE UPPER CONNECTOR

TUBING HANGER

LOWER CONNECTOR

LOCK-DOWN SCREWS

TUBING HEAD ADAPTOR FLANGE: 1. ROTATING

FLANGE 2. BONNET

SPOOL

TUBING

RING GASKET

TWO STATIC O-RINGS PROVIDE BACKUP PRESSURE SEAL

FACE SEAL O-RING PROVIDES MAIN PRESSURE SEAL

TORLON FACE BLOCK PROVIDES RIDGID CONNECTION AND PROTECTS AGAINST PRESSURE DAMAGE

SOLID COPPER CONTACT PINS

PATENTED

TRANSITION SLEEVE

TRANSMISSION ELEMENT

CANADIAN OILWELL SYSTEMS COMPANY LTD. 9760–60 Ave, Edmonton

Alberta, Canada T6E 0C5 Tel: (780) 430-0840

Fax: (780) 430-0367

SOLID COPPER PINS WITH MULTILAM INSERTS, ENHANCE CONNECTIONS

STAINLESS STEEL BOLTS TO TOP OF TUBING HANGER (FOUR)

O-RINGS PROVIDE MOISTURE PROTECTION

DEFORMABLE FILLER MATERIAL

SOLID COPPER CONTACT PINS

90-DEGREE UPPER CONNECTOR

PATENTED

TWO STATIC O-RINGS PROVIDE BACKUP PRESSURE SEAL

FACE SEAL O-RING PROVIDES MAIN PRESSURE SEAL

STAINLESS STEEL BOLTS TO BOTTOM OF TUBING HANGER (FOUR)

DEFORMABLE FILLER MATERIAL

318 L STAINLESS STEEL HOUSING AND JACKET PROVIDES CORROSION RESISTANCE

PIGTAIL: CABLE TYPE AND SIZE DETERMINED BY WELLBORE ENVIRONMENT AND BOTTOMHOLE EQUIPMENT, 15 FT. STANDARD LENGTH, ROUND OR FLAT CABLE

LOOSE FLANGE (RETAINED BY SNAP-RING) ALLOWS ORIENTATION OF CONNECTOR BEFORE HOOKUP

CONNECTOR ORIENTATION MARKER

LOWER CONNECTOR

TORLON FACE BLOCK PROVIDES DURABLE NOSING

TORLON FACE BLOCK PROVIDES RIDGID

CONNECTION AND PROTECTS AGAINST PRESSURE DAMAGE

ROUND CABLE PIGTAIL 25 FT. STANDARD LENGTH

318 L STAINLESS STEEL HOUSING AND JACKET PROVIDES CORROSION RESISTANCE

UPPER SEAL RETAINING PLATE

CANADIAN OILWELL SYSTEMS COMPANY LTD. 9760–60 Ave, Edmonton

Alberta, Canada T6E 0C5 Tel: (780) 430-0840

Fax: (780) 430-0367

COSCO “UNIVERSAL” TUBING HEAD ADAPTERS The COSCO “Universal” tubing head adapters are designed to install on top of existing wellhead equipment to convert for use with submersible pumps. Four types of adapters are available in a variety of sizes. All are configured for a top entry electrical system. • Type SA “Universal Adapter

• Type FA Flanged “Universal” Adapter Spools • Type A Flanged “Universal” Adapter Spools • COSCO SAPA Packoff Tubing Head Adapter

TYPE SA TUBING HEAD ADAPTER WITH 2 PIECE 90-DEGREE TOP ENTRY ELECTRICAL SYSTEM

NOTES: 1. Specify flat or round lower pigtail cable. 2. The upper cap is 8-5/8” RD thread suitable for a

BOP adapter. 3. Standard cable conductor size #4 AWG. Other

sizes available on request.

TUBING HANGER

90-DEGREE UPPER CONNECTOR

LOWER CONNECTOR TUBING

OPTIONAL FLANGED TUBING OUTLET

UPPER CAP

TYPE SA “UNIVERSAL” ADAPTERS

PATENTED

CANADIAN OILWELL SYSTEMS COMPANY LTD. 9760–60 Ave, Edmonton

Alberta, Canada T6E 0C5 Tel: (780) 430-0840

Fax: (780) 430-0367

FA adapters are designed for ease of BOP installation.

NOTES: 1. Allow use of 3-1/2” tubing. 2. Upper flange complete with 4 lockscrews. 3. Standard adapters do not have side outlets. Side outlets are available in threaded or studded

configuration. Specify size and type of side outlets, when ordering. 4. Specify round or flat lower pigtail cable. 5. Standard cable conductor size #4 AWG. Other sizes available on request.

TYPE FA FLANGED “UNIVERSAL” ADAPTER SPOOLS

TYPE FA TUBING HEAD ADAPTER SPOOL WITH 2 PIECE 90-DEGREE TOP ENTRY ELECTRICAL SYSTEM

SPOOL

TUBING HANGER

90-DEGREE UPPER CONNECTOR

TUBING LOWER CONNECTOR

LOCK-DOWN SCREWS

PATENTED

CANADIAN OILWELL SYSTEMS COMPANY LTD. 9760–60 Ave, Edmonton

Alberta, Canada T6E 0C5 Tel: (780) 430-0840

Fax: (780) 430-0367

Type A adapter spools are used in conjunction with 3-piece electrical systems when a tubing adapter (bonnet) is required. When ordering, specify: 1. Adapter spools part number or size. 2. Tubing adapter (bonnet) style. (threaded or flanged upper tubing connection)

NOTES: 1. Allow use of 3-1/2” tubing. 2. Upper flange complete with 4 lockscrews. 3. Standard adapters do not have side outlets.

Side outlets are available in threaded or studded configuration. Specify size and type of side outlets, when ordering.

4. Specify round or flat lower pigtail cable. 5. Standard cable conductor size #4 AWG. Other

sizes available on request. 6. Unique bonnet configuration does not require

alignment slot for tubing hanger. 7. SPECIFY FLANGED OR THREADED UPPER

TUBING CONNECTION ON BONNET.

TYPE A FLANGED “UNIVERSAL” ADAPTER SPOOLS

TYPE A TUBING HEAD ADAPTER SPOOL WITH 3 PIECE 90-DEGREE TOP ENTRY ELECTRICAL SYSTEM

TUBING HEAD ADAPTOR FLANGE: 1. ROTATING

FLANGE 2. BONNET

OPTIONAL FLANGED TUBING OUTLET

TUBING HANGER

LOCK-DOWN SCREWS

SPOOL TUBING

RING GASKET

PATENTED

CANADIAN OILWELL SYSTEMS COMPANY LTD. 9760–60 Ave, Edmonton

Alberta, Canada T6E 0C5 Tel: (780) 430-0840

Fax: (780) 430-0367

COSCO SAPA PACKOFF TUBING HEAD ADAPTER

HAMMER NUT

CLAMPING BOLTS

UPPER CLAMPING PLATE

UPPER SEAL RETAINING PLATE

RUBBER SEAL ELEMENTS

LOWER SEAL RETAINING PLATE

2-3/8” OR 2-7/8” MANDRIL HANGER

LOWER SUPPORT PLATE

7-1/16” - 2000/3000# UNIVERSAL TUBING SPOOL

TUBING

ESP ROUND CABLE