AQC Connectors

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.

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

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

News & blogs

Aquaterra Energy marks fabrication milestone for its inaugural RAF system to tackle legacy well challenge for Northern Endurance Partnership

Norwich, UK, 20/05/2026: Aquaterra Energy, a leader in offshore engineering solutions, has marked a key milestone for its inaugural Recoverable Abandonment Frame (RAF) system by moving into fabrication. The system is destined for the Northern Endurance Partnership (NEP), one of the UK’s most advanced carbon capture and storage (CCS) projects, which Aquaterra Energy secured a […]

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