We’ve developed our own market-leading range of riser system connectors, called the Aquaterra Quick connectors (AQC).

Aquaterra Energy's AQC-SR in use offshore

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AQC Connectors

Designed for efficiency gains

Our AQC connectors have all been designed, developed and qualified by our in-house team of expert riser system engineers to reduce lead-times, capital and operational costs. This patented technology offers unrivalled efficiency gains and enhanced safety during operations.

High Pressure Primary Riser in warehouse

Fast and efficient rig make-up

We’ve designed all our AQC connectors to offer fast and efficient rig make-up, with no loose parts and gas tight sealing technology.

As an OEM for oilfield equipment, we can provide our AQCs as part of a complete installation package, or as standalone items.

It’s a unique offering that gives customers significant technical advantages, as well as both opex and capex savings.

OEM designed and tested
Fatigue compliant
Range of ratings available, from 5-15k PSI
Qualified to ISO 13628-7 and/or API 16a

As a drilling riser system specialist, we also supply a variety of other connectors which can be integrated into subsea or surface riser applications, ensuring a fully optimised solution. All connectors can be made available to rent on their own with the complete suite of running and operating equipment, or as part of a complete riser supply. In addition, we can provide a trained tea

Aquaterra Energy Quick Connect - on rig with engineers

Supporting industry decarbonation goals

Our AQC riser system connector range offers operators reduced make-up and break-out time during utilisation, versus a standard flange system. This is estimated to save circa one rig day per unit, per well, using previous service report data. The saving of a day’s operational time per unit, equates to 67.71 tonnes of CO2e (using performance data from a mid-range jack-up).

Our range of Aquaterra Energy AQC designed and manufactured riser system connectors include:

AQC-SR: Subsea High-Pressure Drilling Riser Systems for HPHT operations
AQC-CW: Completion and Workover riser
AQC-BC: Surface riser connector

Download our Conductor technical sheet for a full list of bore sizes, pressure ratings and product applications.

We also offer complete riser system solutions, including surface riser systems, high-pressure riser systems and completion and workover riser systems.

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50% reduction in delivery lead-time

When compared to other proprietary wellhead profiles and drilling adaptor suppliers

Vastly improved make-up times

Compatibility with other proprietary wellhead profiles and drilling adaptors

Our accreditations

Products

Drilling

Proven, flexible and integrated drilling well access solutions, improving efficiency across subsea developments.

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Intervention & abandonment

Riser-based systems for safe and reliable well re-entry, for intervention and abandonment operations.

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Offshore analysis

Intelligent analysis supporting confident delivery, smarter investment and sustained project success.

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Carbon capture & storage

Expert CO₂ storage solutions, supporting tomorrow’s energy transition.

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Subsea

Integrated subsea systems connecting seabed infrastructure through to surface operations.

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Tensioning

Trusted tension capabilities built for ease, longevity and performance.

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Platforms

Innovative offshore platforms tailored to unique project needs, from concept to installation.

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Offshore equipment & services

Delivering a full suite of specialist products, supported by decades of offshore expertise.

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Download our technical brochure

Download the AQC Connector tech sheet

Latest

Whitepapers

Aquaterra Energy enters new chapter under management ownership

Norwich, UK, 10th November 2026: Today, Aquaterra Energy, a global leader in offshore engineering solutions, announces a change in its ownership structure, with the existing management team taking ownership of the business.  The transaction marks the beginning of a new ownership chapter for the company, ensuring continuity in strategy and leadership while providing a strong […]

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