Care and Maintenance of Rotary-Shouldered Connections
Get more out of your drill string by properly maintaining your Grant Prideco drill stem products.
Best practices for maintaining rotary-shouldered connections.
Even though connections are heavily coated with phosphate, thread damage is not always prevented. A generous and thorough application of high-quality thread dope (40% to 60% by weight metallic zinc minimum for drill collars or thread compound for rotary-shouldered connections) will help minimize galling.
New connections that have not received factory make-and-break should be “walked in” with chain tongs. Always use the recommended makeup torque for the thread design. Exercise care to maintain calibrated torque measuring and indicating gauges for future use. After initial make-up and break-out of the connection, clean and inspect the threads, faces, and shoulders. Repair any minor damage. Relubricate and retorque the connection.
Repeat make-up and break-out a third time before going in the hole. Monitor break-out torque; it should be the same as or less than the makeup torque. High break-out torque is an indication of problems, and the connection should be inspected for damage.
Use thread protectors on both connections when handling drill stem products. Rotate breaks on each trip. Clean and inspect the individual connections.
Qualified personnel should periodically conduct a magnetic particle/black light inspection. Drill stem products that are left idle or put in storage should be cleaned, inspected, repaired, and rust-proofed as necessary before installing thread protectors.
Drill Pipe Running and Handling
Proper running and handling is essential. We help you save time and reduce costs.
Running and Handling for Drill Stem Products
Best practices for running and handling to properly care for and maintain your Grant Prideco drill stem products
Reduce the likelihood of corrosion damage to your drill string.
Interfacing with Rig Tools
Best practices for using drill stem products with rig tools
Recommendations for making-up drill stem components
Picking Up New Pipe and BHA Components
Best practices for picking up new Grant Prideco pipe and bottomhole assembly (BHA) components
Thread Compound Application
Protect your drill stem connections with thread compound.
Grant Prideco Licensee Network
Supporting our customers is our highest priority. Our expansive network of licensed repair facilities provides global service and support for Grant Prideco products.
Grant Prideco Technical Resources
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