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Optimising inspections of offshore assets with drones

Using drones for inspections offshore saves time, improves safety and reduces mobilisation costs.

Client: Altera Infrastructure
Oil & Gas
Asset: Petrojarl Knarr FPSO
Location: North Sea
Year: 2021


Altera Infrastructure had to get a full assessment of the coating condition on its asset, including its hull (above waterline), helideck structure, superstructure and flare structure.

Inspection of the external hull would typically require a support vessel located a certain distance away from the asset, which limits the accuracy. In addition, inspection of the various structures would have required a rope access team and it could have taken weeks to complete.


As such, to save time and improve accuracy, Axess performed the inspections on site with a drone that is equipped with a high-resolution camera. The experienced engineers were able to get good visuals of the critical areas, completing the inspections within just two days.

Axess’ engineer with the drone

(Photo: Axess’ engineer with the drone)


Mobilising a drone is both time and cost-efficient for the client as the inspection of a large area was completed in a much shorter period of time with less manpower. It is also a safer alternative to inspectors working at height, over water or in a support vessel. Moreover, this allowed inspection of critical areas to be completed without any production downtime and eliminated any potential CO2 emissions from a support vessel.

Kristian Nelvik, OPS and BD Director of the QC department at Axess Group, said, “Axess views offshore drone inspections as a greener solution and we are also seeing more interest in this amongst our clients. We are happy that Altera Infrastructure has given us the opportunity to integrate drone technology into our offshore operations. Our engineers have successfully delivered this project by tapping on their experience in drone inspections of onshore assets.”

Hull captured by Axess’ drone during inspection

(Photo: Hull captured by Axess’ drone during inspection)

If you are interested in drone inspections for your onshore or offshore assets, please reach out to us.


Contact Information

Axess AS
Oscar Hanssens vei 5
6415 Molde
+47 982 43 600
Axess AS
Kokstadflaten 35
5257 Bergen
(duty): +47 982 43 600
Axess AS
Travbaneveien 3
4031 Stavanger
(duty): +47 982 43 600
St. John's
Axess Baffin Inc.
702 Water Street, Suite 201
St. John's, Newfoundland
+1 709 758 7937
Axess North America Inc.
1400 Broadfield Suite 300
Houston Tx. 77084
+1 (281) 994-0367
Ciudad del Carmen
Axess Operations De Mexico S de RL de CV
Calle Bosque de Ciruelos 180 PP 101
Colonia Bosque De Las Lomas
CP 11700 Cuidad De Mexico
+52 938-152-7688
Axess North Sea Ltd.
Axess House,
Twin Spires Business Park,
Mugiemoss Road, Bucksburn,
Aberdeen, AB21 9NY
(duty): +44 (0) 78 5303 6111
Axess Guyana Inc.
2 Avenue of the Republic
Georgetown, Guyana
+592 222 2216
Rio de Janeiro
Axess do Brasil Ltda
Rua Dezenove de Fevereiro
171 - Botafogo
CEP 22280-030 Rio de Janeiro
+55 (21) 4108-0532
Axess Petrorig Ghana Limited
3rd floor, The Pelican
8 Blohum Street, Dzorwulu
Accra, Ghana
+233 (0) 30 397 0548
Axess Offshore Africa Ltd.
Edificio Joia Rara, 3º Andar 3.5/3.6,
Av. Revolução de Outubro No 8, Cassenda, Maianga
Luanda, Angola
+244 933 316 388
Cape Town
Axess Offshore Africa Ltd.
Office 106, 1st Floor, Block 2,
Northgate Park, Brooklyn
Cape Town, South Africa
+27 21 001 9540
Axess AS
Nedre Bakklandet 58C
7014 Trondheim
(duty): +47 982 43 600
Axess AS
Grønøraveien 1
7300 Orkanger
(duty): +47 478 37 300
Axess AS
Fridtjof Nansens plass 4
0160 Oslo
(duty): +47 982 43 600
Axess for Oil Services
3141 Anas Bin Malik, Al Malqa Dist.
Riyadh, Kingdom of Saudi Arabia
+966 59 427 0293
Axess Middle East DMCC
807 X2 Tower, X Cluster,
Jumeriah Lake Towers
Dubai, UAE
+971 4565 7913
Axess Offshore Korea LLC
22nd Floor KNN Tower, Centum-ro 30
2203-ho, Haeundae-gu
Busan, South Korea
+82 10 2696 2016
Axess AIM India Pvt. Ltd.
B2-701, 7th Floor,
Kanakia Boomerang,
Chandivali Farm Road
Andheri East, Mumbai- 400072
+91 22 4604 3533
Axess Offshore Pte Ltd
Nordic European Centre, #05-31 South Wing,
3 International Business Park
Singapore 609927
+65 6908 4174
Axess Offshore Australia Pty Ltd
304 Newcastle St
Perth WA 6000
+61 4 3373 0739