Applications
- Gas and high-pressure production wells
- Deep, deviated and extended-reach wells
- Thermal, sour and other demanding service programs
OCTG CONNECTION SYSTEMS
Premium & Gas-Tight Connections
Connection solutions evaluated for sealing, torque, clearance and compatibility in demanding well applications.
StandardAPI 5CT tubular requirements · ISO 13679 / API 5C5 qualification references where applicable
Size / supply rangeConnection availability confirmed by product OD, wall, grade and weight · Integral and coupled configurations subject to connection family
Grades / materialsCarbon and low-alloy OCTG grades · Sour-service and CRA compatibility subject to connection qualification
Connections / optionsMetal-to-metal seal options · High-torque and compression-resistant designs
TECHNICAL PROCUREMENT
Define premium & gas-tight connections around the operating requirement.
Availability and final supply scope are confirmed after technical review. OAK PIPE coordinates the product configuration, manufacturing route, inspection requirements and delivery package against the enquiry.
Configuration options
- Metal-to-metal sealing and gas-tight connection families
- High-torque, high-collapse and slim-clearance configurations
- Casing, tubing, coupling and accessory compatibility
Quality & documentation
- Authorized or qualified threading-route review
- Thread profile, seal surface and gauging inspection
- Material traceability, make-and-break or seal-performance evidence as specified
PROCUREMENT BASIS
Technical scope at a glance.
This summary supports preliminary comparison. Final dimensions, tolerances, availability and acceptance requirements are confirmed against the enquiry and governing purchase documents.
| Reference basis | API 5CT / ISO 11960 base tubulars with connection-specific technical and qualification requirements |
|---|---|
| Product configuration | Metal-to-metal sealing and gas-tight connection families · High-torque, high-collapse and slim-clearance configurations · Casing, tubing, coupling and accessory compatibility |
| Verification basis | Authorized or qualified threading-route review · Thread profile, seal surface and gauging inspection · Material traceability, make-and-break or seal-performance evidence as specified |
| Commercial confirmation | Size or drawing · Material / grade · Quantity · Service conditions · Inspection scope · Destination and schedule |
The purchase order, approved drawings and agreed specification take precedence over this website summary.
RFQ CHECKLIST
Information to include with your enquiry.
A clear starting specification allows faster technical review and a more accurate commercial response.
Prepare Your RFQ- 01Pipe size, weight, grade and quantity
- 02Required connection or performance envelope
- 03Well depth, pressure, temperature and service environment
- 04Qualification, inspection, running and documentation requirements
PRODUCT OVERVIEW
Premium & Gas-Tight Connections for project-specific requirements.
Premium and gas-tight connections are selected where API round or buttress connections do not provide sufficient sealing, torque, clearance or structural performance for the intended well conditions. Connection performance depends on the complete pin-and-box geometry, material, thread finish, seal surfaces, torque procedure and running practice.
OAK evaluates connection supply through authorized or technically controlled threading routes. The final connection must be selected against casing or tubing size, grade, wall thickness, internal and external pressure, tension or compression, temperature, bending, clearance and make-up requirements. Connection claims remain subject to the applicable qualification basis and project acceptance criteria.
TECHNICAL SCOPE
Supply basis at a glance.
Use this overview to prepare an enquiry. The final size, grade, connection and inspection combination is confirmed against the governing specification.
| Technical field | Available or review basis |
|---|---|
| Standards | API 5CT tubular requirements · ISO 13679 / API 5C5 qualification references where applicable · Connection-owner specifications · Project well design criteria |
| Size & supply range | Connection availability confirmed by product OD, wall, grade and weight · Integral and coupled configurations subject to connection family |
| Grades & materials | Carbon and low-alloy OCTG grades · Sour-service and CRA compatibility subject to connection qualification |
| Connections & options | Metal-to-metal seal options · High-torque and compression-resistant designs · Flush or semi-flush clearance options · Gas-tight casing and tubing connections |
PRODUCT PARAMETERS
Recorded product specifications.
The values below come from the maintained OAK product record. Contract dimensions, tolerances and acceptance criteria remain subject to final order review.
| Parameter | Specification / value |
|---|---|
| Selection basis | Sealability, torque, load envelope, clearance and running requirements |
| Product scope | Casing, tubing, couplings, pup joints and transition components |
APPLICATIONS
Where this product is used.
- Gas wells
- Deep and HPHT wells
- Sour and corrosive service
- Thermal, deviated and clearance-restricted wells
SERVICE & SELECTION
Conditions considered during selection.
- Combined pressure and axial loading
- Thermal cycling
- Bending and dogleg severity
- Running torque and galling control
MANUFACTURING
Controlled production route.
Key operations are coordinated against the product specification and order requirements.
01Controlled connection data and revision
02CNC threading
03Seal and shoulder surface control
04Phosphate or approved surface treatment
05Gauge calibration and final inspection
INSPECTION & TESTING
Verification before release.
- Thread form and dimensional inspection
- Seal and shoulder visual examination
- Gauge inspection
- Make-up verification when specified
- Third-party inspection according to order
QUALITY DOCUMENTS
Evidence supplied with the order.
- Connection inspection report
- Gauge calibration records
- Material traceability
- Authorized threading or qualification evidence where applicable
PACKING & DELIVERY
Prepared for the destination and handling plan.
Marking, protection and shipment details are confirmed during order review.
Cleaned and protected connection surfaces
Connection-specific protectors
Handling and storage instructions
RFQ CHECKLIST
Information needed for a practical quotation.
Share the available technical and commercial requirements. Missing details can be reviewed with our team.
Request a Quote- 01Tubular size, weight, grade and wall thickness
- 02Well loads, pressure, temperature and fluid environment
- 03Required connection family or performance objective
- 04Clearance, torque and running constraints
PRODUCT & PROCESS VIEWS
Product views and manufacturing context.
Representative product, production and inventory views support preliminary identification. Final supply details are confirmed against the quotation.
START A CONVERSATION
Have a specification or product list?
Send it to OAK PIPE for technical and commercial review.