OCTG (Oil Country Tubular Goods): Ensuring Well Integrity from Surface to Pay Zone

Trust Imex Canada to supply the critical casing and tubing that forms the structural and production foundation of your oil and gas wells, backed by seamless global logistics and expert Canadian customs compliance.

What is OCTG and Why It's Crucial

Oil Country Tubular Goods (OCTG) are the lifeblood of oil and gas drilling and production operations. These specialized steel pipes—primarily casing and tubing—are engineered to perform under the extreme conditions found deep underground. They are indispensable for:

• Structural Support: Preventing the wellbore from collapsing under geological pressures
• Formation Isolation: Separating different geological zones to prevent cross-flow and protect aquifers
• Hydrocarbon Production: Providing the conduit for oil and gas to flow safely to the surface
• Pressure Containment: Withstanding immense internal and external pressures throughout the well's lifecycle
• Environmental Protection: Safeguarding groundwater and surface ecosystems from contamination

The integrity and performance of your OCTG are non-negotiable for safe, efficient, and environmentally responsible operations.

Your Source for Reliable OCTG

As a key offering within our portfolio of Oilfield Products, Imex Canada provides access to a comprehensive range of high-quality OCTG. With over 30 years of industry experience, we source casing and tubing from reputable global manufacturers who adhere to the most stringent industry standards.

Our focus is on delivering tubular goods that meet your exact specifications and operational requirements, ensuring the reliability needed for your critical applications across conventional and unconventional plays in Western Canada and beyond.

Our OCTG Offering: Casing & Tubing

Imex Canada specializes in the two primary categories of OCTG:

Casing

Used to line the wellbore and provide structural integrity. Casing strings are cemented in place and run in progressively smaller diameters as the well deepens (Conductor, Surface, Intermediate, Production Casing). They are crucial for protecting the wellbore from formation pressures and preventing collapse.

Casing Specifications:

• Sizes: 4½" to 20" (114mm to 508mm)
• Grades: J55, K55, N80, L80, L80-9Cr, L80-13Cr, C90, T95, C110, P110, Q125
• Mill Proprietary Grades: Available for sour service, corrosion resistance, and high collapse applications
• Connections: API standard (BTC, STC, LTC), non-API, and premium connections
• Compliance: ERCB Directive 10 and IRP compliant
• Manufacturing: Seamless and welded options to meet specific well requirements

Download Casing Specifications (PDF)

Tubing

Inserted inside the production casing, tubing is the pipe that transports produced hydrocarbons from the reservoir to the surface. It must withstand internal production pressures and potentially corrosive well fluids. In injection wells, tubing is used to deliver fluids downhole.

Tubing Specifications:

• Sizes: 1⅝" to 4½" (39.7mm to 114.3mm)
• Grades: J55, L80, N80, P110, P110-HC (High Collapse)
• Connections: NUE (Non-Upset End), EUE (External Upset End), and proprietary semi-premium/premium connections
• Manufacturing: ERW (Electric Resistance Welded) and seamless to API and proprietary standards
• Special Applications: Available for thermal recovery, SAGD operations, and corrosive environments

Download Tubing Specifications (PDF)

Download Coupling Stock Specifications (PDF)

API 5CT Compliance & Quality Standards

Quality is paramount for OCTG. Imex Canada ensures that the tubular goods we supply meet or exceed the demanding specifications of API Specification 5CT, the global standard for casing and tubing.

Quality Assurance Features:

• Certified Steel Grades: Access to a full range of API grades suitable for varying well depths, pressures, and corrosive environments
• Precision Manufacturing: Sourcing seamless and welded pipes manufactured to precise dimensions (OD, wall thickness, straightness) for optimal performance
• Reliable Connections: Providing tubulars with standard API connections (BTC, STC, LTC) or high-performance premium connections for critical applications requiring superior seal integrity and torque resistance
• Rigorous Testing:
  • Hydrostatic pressure testing
  • Drift diameter testing
  • Electromagnetic inspection (EMI)
  • Ultrasonic testing (UT)
  • Mechanical property verification
  • Dimensional inspection
• Mill Test Reports: Complete documentation including chemical composition, mechanical properties, and test results
• Third-Party Inspection: Available upon request for additional quality verification

Grade Selection Guide:

Grade	Yield Strength (psi)	Common Applications
J55 / K55	55,000	Shallow wells, low-pressure environments
N80 / L80	80,000	Medium-depth wells, moderate corrosive environments
L80-9Cr / L80-13Cr	80,000	CO₂ and H₂S corrosive service
C90 / T95	90,000 - 95,000	Intermediate depth, higher pressure applications
P110	110,000	Deep wells, high-pressure applications
Q125	125,000	Ultra-deep wells, extreme pressure environments

The Imex Advantage: Integrated OCTG Supply & Logistics

Sourcing and delivering OCTG to your well site, especially in Canada, involves complex logistics and strict regulatory compliance. This is where Imex Canada truly differentiates itself:

Our Complete Supply Chain Solution:

• Global Reach, Local Expertise: We leverage our extensive global network to source high-quality OCTG efficiently. Combined with our deep understanding of the Canadian oil and gas landscape and logistical challenges, we bridge the gap between global supply and local delivery.
• Seamless Integrated Logistics: We don't just source the pipe; we handle the entire journey. Our experienced logistics team manages:
  • Ocean Freight: Containerized and break-bulk shipments from international mills
  • Rail Transport: Efficient cross-country movement to Western Canada
  • Specialized Trucking: Heavy haul transport with proper permits and route planning
  • Warehouse Storage: Strategic inventory management in Edmonton, Alberta
  • Last-Mile Delivery: Direct to well site or yard
• Expert Canadian Customs Brokerage: Importing OCTG requires intricate knowledge of customs classification, valuation, trade agreements (CUSMA/USMCA), and CBSA procedures. Our dedicated customs brokerage specialists ensure:
  • Accurate HS code classification
  • Proper valuation and duty calculation
  • Full regulatory compliance
  • Prevention of costly delays and demurrage
  • Avoidance of penalties and additional scrutiny
• Streamlined Supply Chain: Partnering with Imex Canada means one point of contact managing the product sourcing, international shipping, and customs clearance. This significantly reduces the administrative burden and complexity for your team.
• Reliability & On-Time Delivery: We understand that having the right pipe on site, exactly when you need it, is critical to keeping your operations on schedule and budget. Our integrated approach focuses on predictable, reliable delivery.
• Cost Optimization: Our consolidated shipping volumes, established carrier relationships, and customs expertise often result in better pricing and fewer unexpected costs compared to managing the supply chain independently.

OCTG Applications & Well Types

Our OCTG products serve a wide range of drilling and completion scenarios:

Well Types:

• Vertical, directional, and horizontal wells
• Conventional oil and gas wells
• Unconventional plays (shale, tight oil/gas)
• SAGD (Steam-Assisted Gravity Drainage) thermal recovery
• Enhanced Oil Recovery (EOR) operations
• Offshore and onshore developments
• Exploratory and development wells

Environmental Conditions:

• Sweet service (non-corrosive)
• Sour service (H₂S environments)
• CO₂ corrosive environments
• High-pressure high-temperature (HPHT)
• Thermal applications with extreme temperature cycling
• Cold weather operations in Western Canada

Well Construction Phases:

• Conductor Casing: Initial large-diameter casing for shallow protection
• Surface Casing: Protects freshwater aquifers
• Intermediate Casing: Isolates problematic formations
• Production Casing: Final string for well completion
• Production Tubing: For hydrocarbon transport to surface
• Injection Tubing: For water flood, steam, or chemical injection

Complementary Products & Services

Imex Canada provides a complete range of tubular goods and well equipment to support your operations:

Tubular Products:

• Drill Pipe & Drill Stem Components for drilling operations
• Line Pipe for gathering systems and pipelines
• Vacuum Insulated Tubing (VIT) for thermal applications
• Sucker Rods for artificial lift

Completion & Production:

• Wire Wrapped Screens for sand control
• Precision Rolled Screens (PRS) for advanced filtration
• Sand Control Solutions for unconsolidated formations
• Completion Accessories for well optimization
• Wellheads for surface pressure control
• Sucker Rod Pumps for artificial lift systems
• Pump Barrels for downhole pumping

Workover Equipment:

• Automatic Workover Rigs for well intervention

Related Products:

• Weld Fittings & Elliptical Heads for surface facilities

Frequently Asked Questions (FAQ)

What's the difference between casing and tubing?

Casing is cemented in place and provides structural integrity to the wellbore, preventing collapse and isolating formations. Tubing is installed inside the casing and is the conduit through which hydrocarbons are produced or fluids are injected. Tubing can be removed and replaced; casing is permanent.

How do I select the right OCTG grade for my well?

Grade selection depends on several factors: well depth, formation pressures, presence of corrosive gases (H₂S, CO₂), temperature, and expected well life. Our technical specialists can help you select the optimal grade based on your specific well conditions. Contact us for application engineering support.

What are premium connections and when should I use them?

Premium connections are proprietary, high-performance threaded connections that offer superior sealing, higher torque capacity, and better fatigue resistance compared to standard API connections. They're recommended for:

• Horizontal and extended-reach wells
• High-pressure applications
• Sour service environments
• Thermal cycling operations
• Wells with strict sealing requirements

Do you supply OCTG for sour service applications?

Yes, we supply specialized sour service grades including L80-9Cr, L80-13Cr, and mill-proprietary grades specifically engineered for H₂S environments. These materials meet NACE MR0175/ISO 15156 requirements for sulfide stress cracking resistance.

What is ERCB Directive 10 compliance?

The Energy Resources Conservation Board (now Alberta Energy Regulator) Directive 10 sets minimum casing design requirements for wells in Alberta. It ensures adequate protection of groundwater and surface casing integrity. All our casing supplied for Alberta operations meets or exceeds these standards.

Can you handle urgent or emergency OCTG requirements?

Yes, we maintain relationships with mills worldwide and have access to various inventory sources. For urgent requirements, we can expedite sourcing and shipping. Contact our team immediately to discuss your timeline and we'll work to meet your needs.

What documentation do you provide with OCTG shipments?

We provide complete documentation including:

• Mill Test Reports (MTR) with chemical and mechanical properties
• Material certifications
• Dimensional inspection reports
• Third-party inspection certificates (when requested)
• Complete customs documentation
• Bill of lading and shipping documents

How long does delivery typically take?

Delivery timelines vary based on product availability and destination:

• In-stock items: 2-4 weeks to Canadian locations
• Mill orders: 8-16 weeks depending on mill schedules and shipping
• Urgent orders: Expedited options available upon request

Canadian Regulatory Compliance

Imex Canada ensures full compliance with Canadian oil and gas regulations:

• Alberta Energy Regulator (AER) standards and directives
• ERCB Directive 10 casing design requirements
• IRP (Interim Inspection Report Program) compliance
• Canadian Standards Association (CSA) requirements
• CBSA (Canada Border Services Agency) import regulations
• NACE/ISO 15156 for sour service materials

Why Choose Imex Canada for OCTG?

With over 30 years of experience serving the oil and gas industry, Imex Canada has established itself as a trusted partner for OCTG supply. Our unique value proposition includes:

• Comprehensive product range covering all casing and tubing needs
• API 5CT certified quality from reputable global manufacturers
• Expert customs brokerage eliminating border complications
• Integrated logistics from mill to well site
• Technical support for grade and connection selection
• Competitive pricing through global sourcing
• Reliable delivery meeting your operational schedules
• Complete documentation and quality assurance
• Single point of contact simplifying your supply chain

Technical Resources

Download Specification Sheets:

Casing Specifications (PDF)
Complete dimensional data, grade specifications, and connection details for casing products.

Tubing Specifications (PDF)
Comprehensive specifications for production and injection tubing.

Coupling Stock Specifications (PDF)
Coupling dimensions and specifications for API connections.

Get Started with Your OCTG Project

Ensure the integrity and success of your wells from the ground up. Whether you're planning a single exploratory well or a multi-well development program, Imex Canada has the expertise, inventory access, and logistics capabilities to support your operations.

Request Your Quote Today

Connect with Our OCTG Specialists

Phone: +1 (403) 269-9999
Email: sales@imexcanada.com

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