Applications
- New drill-pipe manufacture
- Tool-joint replacement and repair programs
- High-torque and wear-critical drill strings
DRILL STRING & BHA
Tool Joints
Rotary-shouldered connection components matched to drill-pipe body, welding route, wear system and inspection requirements.
StandardAPI 5DP / ISO 11961 · API 7-2
Size / supply rangeTool-joint OD, ID and length matched to drill-pipe size and design · Standard and slim-hole geometries subject to connection limits
Grades / materialsTool-joint material and mechanical properties according to assembly design · Sour-service or low-temperature routes subject to qualification
Connections / optionsAPI NC, FH and other specified rotary-shouldered connections · Selected proprietary high-torque connections
TECHNICAL PROCUREMENT
Define tool joints 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
- Pin and box tool-joint sets
- API rotary-shouldered and selected proprietary connections
- Hardbanding, phosphating and thread-protection options
Quality & documentation
- Material and heat-treatment traceability
- Connection gauging and dimensional inspection
- Friction welding, weld-zone heat treatment and NDT records 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 5DP / ISO 11961, API 7-2 / ISO 10424-2 and order-specific welding and connection requirements |
|---|---|
| Product configuration | Pin and box tool-joint sets · API rotary-shouldered and selected proprietary connections · Hardbanding, phosphating and thread-protection options |
| Verification basis | Material and heat-treatment traceability · Connection gauging and dimensional inspection · Friction welding, weld-zone heat treatment and NDT records 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- 01Drill-pipe body size, grade and upset
- 02Tool-joint OD, ID and connection
- 03Material strength and hardbanding requirements
- 04Quantity, welding route and inspection scope
PRODUCT OVERVIEW
Tool Joints for project-specific requirements.
Tool joints form the pin and box connection ends of drill-pipe assemblies and transfer torque, tension, compression and bending between joints. They must be coordinated with the drill-pipe body, upset, weld route, connection geometry, hardbanding and rig handling envelope.
Drill-pipe tool-joint requirements are primarily governed with the drill pipe under API 5DP / ISO 11961, while rotary-shouldered connection threading and gauging reference API 7-2. API 7-1 applies to other rotary drill-stem elements and should not be presented as the sole tool-joint product standard.
Material identity, heat treatment, machining, friction welding, weld-zone treatment, connection gauging, hardbanding and NDT are controlled as one assembly route.
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 5DP / ISO 11961 · API 7-2 · Connection-owner specification where applicable · Project drill-string specification |
| Size & supply range | Tool-joint OD, ID and length matched to drill-pipe size and design · Standard and slim-hole geometries subject to connection limits |
| Grades & materials | Tool-joint material and mechanical properties according to assembly design · Sour-service or low-temperature routes subject to qualification |
| Connections & options | API NC, FH and other specified rotary-shouldered connections · Selected proprietary high-torque connections · Pin and box surfaces with controlled treatment |
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 |
|---|---|
| Product basis | API 5DP / ISO 11961 drill-pipe assembly requirements |
| Connection reference | API 7-2 or approved proprietary connection specification |
| Configurations | Pin and box tool joints with order-specific OD, ID and hardbanding |
APPLICATIONS
Where this product is used.
- Drill-pipe assemblies
- Directional and horizontal drilling
- High-torque and extended-reach programs
- Wear-managed casing drilling environments
SERVICE & SELECTION
Conditions considered during selection.
- Torque, tension and cyclic bending
- Connection fatigue and make-break cycles
- External wear and casing-contact conditions
- Drilling-fluid and sour-service exposure
MANUFACTURING
Controlled production route.
Key operations are coordinated against the product specification and order requirements.
01Forging and material verification
02Heat treatment and mechanical testing
03Precision connection machining
04Friction welding to upset pipe body
05Weld-zone treatment and hardbanding
INSPECTION & TESTING
Verification before release.
- Material and hardness verification
- UT / MPI as specified
- Weld-zone NDT
- Connection gauging and visual inspection
- Hardbanding dimensions and condition
QUALITY DOCUMENTS
Evidence supplied with the order.
- Tool-joint and pipe-body MTCs
- Heat-treatment and weld records
- NDT reports
- Connection and dimensional reports
- Hardbanding records
PACKING & DELIVERY
Prepared for the destination and handling plan.
Marking, protection and shipment details are confirmed during order review.
Thread protectors
Assembly identification and tally
Rack or bundle protection
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- 01Drill-pipe size, weight and grade
- 02Tool-joint OD, ID and connection
- 03Pin/box dimensions and performance requirements
- 04Hardbanding and surface treatment
- 05Inspection, documentation and quantity
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.