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  • Maersk Drilling’s first low-emission rig shows very promising emission reduction levels after entering operations in Norway
    édité le 17/12/2020 - Plus de news de "Maersk Drilling" - Voir la fiche entreprise de "Maersk Drilling"


Maersk Drilling’s first low-emission rig shows very promising emission reduction levels after entering operations in Norway
After successfully being converted to a hybrid, low-emission rig, Maersk Intrepid has entered operations as the first Maersk Drilling rig to feature this set of upgrades. Maersk Intrepid is currently working for Equinor on the Martin Linge field where the ultra-harsh environment jack-up in November this year commenced its first drilling operation with the full low-emission package in use.

The full technology package was expected to deliver a double-digit energy savings potential, and this has now been confirmed on Maersk Intrepid where the first month of operations on Martin Linge produced an initial data point of reducing fuel consumption and CO2 emissions by approximately 25% compared to the baseline average for the rig. In addition, NOx emissions were reduced by approximately 95%, an improvement from the original target of 90%.

The installation of low-emission technology is one of several initiatives that support Maersk Drilling’s efforts to reach the company’s recently announced target of reducing its CO2 emissions intensity by 50% by 2030. Other initiatives relating to CO2 reductions include operating rigs on shore power and participation in the Project Greensand consortium which is targeting the use of discontinued oil and gas fields for permanent storage of CO2 offshore Denmark.

“We’re thrilled to now see the full complement of low-emission technology in use on Maersk Intrepid, and to receive a very promising first dataset on emission reductions. It’s still too early to make any definitive conclusions on average emission reductions over time, but the preliminary results are very promising with reductions around 25% compared to the rig’s baseline, driven by both energy-saving technology and behavioural changes supported by the low-emission package. We want to do our part in the transition towards a sustainable energy future, and we’re thankful for the engagement of our customer Equinor and the NOx Fund in realising this project,” says Caroline Alting, Head of Integrity & Projects, Maersk Drilling.

The hybrid, low-emission upgrades installed on Maersk Intrepid are supported by a grant from the Norwegian NOx Fund and by Equinor’s decision to introduce compensation formats to stimulate emission reductions. The upgrades combine the use of hybrid power with NOx conversion units, adding data intelligence to further reduce energy consumption and CO2 emissions. As part of the Master Frame Agreement between Maersk Drilling and Equinor, the parties have committed to exploring further initiatives to limit greenhouse gas emissions from drilling operations.

The full package of hybrid, low-emissions upgrades is also being installed on the ultra-harsh environment jack-up rig Maersk Integrator which is expected to start operating in full low-emission mode in early 2021 in Norway.

“Maersk Drilling shows that it is technically and financially feasible to retrofit offshore rigs with low-emission solutions. It is also important that the ambitions do not stop there, but, as in this case, that the new technology opens for further reductions towards a zero-emission future. If Norway is to meet its national emission targets, it is crucial that offshore rigs contribute with their share, and with the improvements on Maersk Intrepid, Maersk Drilling is showing the way. The NOx Fund is ready for more applications of similar character and hopes that rig operators and entrepreneurs together can develop new projects,” says Tommy Johnsen, General Manager of the NOx Fund.

Maersk Intrepid is an ultra-harsh environment CJ70 jack-up rig, designed for year-round operations in the North Sea. It was delivered in 2014 and has been operating in Norway ever since.

Low-emission upgrades on CJ70 rigs

The low-emission package for Maersk Intrepid and Maersk Integrator consists of three upgrades in total:

- Hybrid power
The energy use on board a rig is characterised by high peak loads during certain operations. By installing energy storage by use of batteries, basic energy requirements can be met by fewer engines operating at higher intensity, supplemented by battery power – which is both more efficient and reduces CO2 and NOx emissions. The energy storage system also allows for recovery of braking energy which adds to energy savings and further reduces emissions.

- Energy Emission Efficiency software
The cloud-based Energy Emission Efficiency (EEE) software developed by Maersk Drilling uses real-time data to monitor energy use on board the rig, which allows for continuous optimisation, for example by switching off engines when they are not needed. The input from the EEE system can further be used to increase focus on energy-saving behavioural changes in general.
- SCR units to reduce NOx emissions
Selective Catalytic Reduction (SCR) systems capture NOx exhausts and use ammonia injections to convert the gas into harmless water and nitrogen. On Maersk Intrepid, the systems have reduced NOx emissions by approximately 95%, an improvement from the original target of 90%.

About Maersk Drilling A/S

Maersk Drilling designs, develops and operates a global fleet of advanced drilling rigs using cutting-edge technology and know-how. Our modern fleet counts 24 drilling rigs including drillships, deepwater semi-submersibles and high-end jack-up rigs. We create value with our customers through a unique service delivery concept where we customise safe, efficient and consistent drilling services. We build our service around our highly skilled and committed workforce, our state of the art offshore drilling rigs and our 40 years of experience operating in the most challenging.

About Equinor

Equinor (OSE:EQNR, NYSE:EQNR), is an international energy company with a proud history. Formerly Statoil, we are 20,000 committed colleagues developing oil, gas, wind and solar energy in more than 30 countries worldwide. We’re the largest operator in Norway, among the world’s largest offshore operators, and a growing force in renewables. Driven by our Nordic urge to explore beyond the horizon, and our dedication to safety, equality and sustainability, we’re building a global business on our values and the energy needs of the future.


Origine : Communiqué Maersk Drilling

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