Drill string
Subs and Stabilizers
Crossover, bit and saver subs, plus string and near-bit stabilizers.
Overview
Subs are short components that join parts of the string with different connections or protect expensive threads: crossover subs change connection type or size, bit subs connect the bit, and saver subs take the wear of repeated make-up at the top drive.
Stabilizers keep the bottom-hole assembly centred in the hole, control hole direction and reduce vibration. They are available with integral blades or replaceable sleeves and in straight or spiral blade designs.
Key Features
- Crossover, bit, saver, lifting and float subs
- Integral blade and replaceable sleeve stabilizers
- Straight and spiral blade options
- Hardfacing to suit formation abrasiveness
Applications
- Connecting components with different threads
- Directional control in packed and pendulum assemblies
- Reducing lateral vibration and bit whirl
Need Subs and Stabilizers?
Tell us the size, connection, rating and quantity, or send your program. We reply with a quote, data sheet and delivery time.