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Design

Design

Sub-drill has officially expanded its BSI UKAS ISO 9001:2015 Quality Management System scope to include full design services. This strategic enhancement allows the company to deliver a more comprehensive, end-to-end service to its global client base, ensuring the highest standards of quality from initial concept through to final delivery.

Why Partner with Sub-drill?

Active Listening: Understanding specific operational needs.
Collaborative Engineering: Working as an extension of the client's team to co-create unique solutions.
Cost Efficiency: Optimising processes to deliver premium results within budget.
Global Support: Seamlessly supporting international projects with certified quality assurance.

Over 30 Years of Engineering Excellence

Sub-drill combines three decades of manufacturing mastery with specialised field knowledge to deliver unmatched bespoke design services. Its expertise spans across:

Subsea

Through advanced engineering and rigorous design development, the Sub-drill Sub-X™ subsea ring gasket technology has evolved into a global industry benchmark.

Rig Floor

Sub-Drill high-performance rig floor products are designed and manufactured in-house to maximise mechanical handling efficiency and elevate crew safety during live drilling operations.

Drill String

Sub-drill specialised drill string products are expertly engineered and fabricated in-house to endure intense downhole torque and guarantee structural reliability throughout the most demanding drilling projects.

Downhole

Sub-Drill engineered downhole products are custom developed and precision built to deliver exceptional pressure isolation and optimal fluid control within volatile wellbore environments.

BOP & Casing Test Tools / Mandrels
BOP & Casing Test Tools / Mandrels

FAQ

To initiate a bespoke design, Sub-drill requires detailed data regarding the tool or gasket’s operating environment and fluid characteristics. This includes maximum and minimum design temperatures, water depths, and the exact chemical composition of the wellbore fluids, particularly H2S and CO2 levels. These parameters are critical for selecting the correct metallurgy and elastomer compounds to prevent premature corrosion or stress cracking.
 
Additionally, clients must provide the exact physical and regulatory constraints of the project. This encompasses the mechanical load requirements—such as working pressures, bending moments, and tensile limits—alongside dimensional profiles of any existing mating equipment. Finally, specifying the required compliance frameworks, such as API 6A, API 17D, or independent third-party witnessing (e.g., Lloyd’s Register), ensures the final design is fully certified for immediate deployment.