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109 Coolgardie Avenue, Redcliffe, WA, 6104
info@clearcutinterventions.com

Subs

Clear Cut Interventions utilises lift, bit & float subs at an offshore site in Australia.
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Bit, Lift & Other Subs for Rental in Western Australia

Short for subassemblies, subs are critical components in a bottom hole assembly. They allow operators to add important functionalities like torque reduction, circulation control and hole cleaning without adding full-length tool strings.

At Clear Cut Interventions, we offer rentals for high-performance subs designed to improve efficiency, manage downhole challenges and reduce non-productive time. Designed in partnership with global innovator NXG, our units integrate smoothly with our drilling and reamer tools, allowing our team to implement tailored solutions across Western Australia.

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The Clear Cut Range

Multi‑Activation Circulation Sub (MACS)

Purpose and Applications

The MACS enables on-demand activation of circulation ports from the surface without the need to drop balls or darts. Ideal for maintenance works, it is a suitable alternative to buying a hole cleaning sub. It can also be used for lost circulation control, wellbore cleanout or horizontal drilling applications.

Key Features

  • Ports can be opened or closed by adjusting pump pressure, even in packed-off conditions

  • Internal shut-off mechanism protects tools below the sub during circulation operations

  • Multiple activations allowed during a run, meaning there is no need to break the drill string

  • Tool status visible at the surface via pressure indicators

  • 5,000 psi working pressure rating and robust body materials

Hole Cleaning Sub (HCS)

Purpose and Applications

The HC sub agitates the fallen cuttings that accumulate on the low side of a bore in deviated or horizontal well sections. It is designed to improve hole cleaning efficiency and is particularly effective in wells with angles exceeding 40°, where cuttings beds can negatively impact drilling performance.

Key Features

  • Impeller/scoop design maximises agitation of settled cuttings

  • Reduces torque, drag, wiper trips and stuck pipe risk

  • Can be run in standard or heavyweight drill pipe formats

  • Racking back capability in derrick, enabling on-demand cleaning without pulling entire string

  • Hard‑faced construction and casing-friendly materials to reduce wear

Torque Reduction Sub (TRS)

Purpose and Applications

The TR sub is designed to alleviate parasitic torque and drag within the drill string. That makes it particularly useful in high-angle wells and extended-reach applications, where greater energy transfer to the bit can reduce casing wear.

Key Features

  • Reduces torque and drag under challenging well conditions

  • Prevents excessive wear on casing and tool joints

  • Can increase rate of penetration by improving energy efficiency

  • Fail‑safe sleeve retention system for reliability

  • Available various sizes (3½” to 6⅝”)

Bit Subs, Float Subs, and Left-Hand Subs

In addition to the MA, HC and TR models, CCI can also provide traditional units, such as:

  • Bit Subs: These connect a bit to the drill string with transition features like stabilisers or shoulders to smooth mechanical coupling.

  • Float Subs: Contain check valves to prevent backflow of fluids during pipe movement or circulation stoppages.

  • Left-Hand (LH) Subs: Rotate opposite to the drill string’s direction, used to unstick or back off stuck components.

These subs work in tandem with our advanced tooling, providing the foundational functionality required for effective bottom hole assembly.

Our Partnership with NXG

CCI is proud to be partnered with NXG, a global innovator in drilling technologies. With their support, we are able to provide the Western Australian market with cutting edge downhole tools.

NXG pairs its design innovation, testing and patented systems with our engineering support and local knowledge to offer offer hybrid solutions that reduce rig time and improve operational reliability. Our teams collaborate to tailor subs, reamers and other tools to specific projects, bringing enhanced performance and efficiency to every job.

End‑to‑End Project Support

At CCI, we know meaningful support doesn’t stop at equipment rentals. Our team deliver full project support from planning through to completion, assisting with site assessment, tool selection, performance monitoring and decommissioning.

Throughout this process, we work in line with core values of collaboration, humility, integrity and passion. We work transparently with clients, respond actively to your feedback, own our outcomes and are constantly striving to improve. This approach not only ensures that your subs operate reliably in the field, but reflects our commitment to supporting safe, efficient and client-focused results on every site.

Enquire About Sub Rentals Today

If you require reliable, market-leading sub technology for circulation control, torque reduction or hole cleaning, Clear Cut Interventions would be happy to help.

To speak with a member of our team, get in touch today.