RESOURCES

Drill Collars & Non-Magnetic Components

Product configurations and RFQ inputs for steel and non-magnetic BHA components.

BHA PRODUCT DATA

Drill Collars & Non-Magnetic Components

Steel and non-magnetic drill collars require separate material, geometry and verification definitions. This overview identifies the principal RFQ fields.

01

Available configurations

Configuration is selected around BHA function, stiffness, weight and borehole interaction.

  • Slick drill collars
  • Spiral drill collars
  • Non-magnetic drill collars
  • Subs and drawing-based components
02

Material and dimensions

The RFQ should define material class and all functional interfaces.

  • Outside and inside diameter
  • Overall length
  • Pin and box connections
  • Elevator, slip or stress-relief features
03

Special verification

Non-magnetic products require property requirements in addition to conventional dimensional and NDT checks.

  • Magnetic permeability
  • Magnetic-field gradient where required
  • Mechanical properties
  • Ultrasonic, surface and connection inspection

ENQUIRY CHECKLIST

Information to prepare.

Use this list as an initial procurement guide. The governing design and purchase documents remain authoritative.

Send Your Requirement
  1. 01Component type and quantity
  2. 02Material requirement
  3. 03OD, ID and length
  4. 04Connections and features
  5. 05Magnetic-property criteria
  6. 06NDT, documents and packing

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Send it to OAK PIPE for technical and commercial review.

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