[HTML][HTML] Plug & abandonment of offshore wells: Ensuring long-term well integrity and cost-efficiency

T Vrålstad, A Saasen, E Fjær, T Øia, JD Ytrehus… - Journal of Petroleum …, 2019 - Elsevier
There is an upcoming" P&A wave" of wells that need to be permanently plugged and
abandoned, especially in mature, offshore areas such as the North Sea and Gulf of Mexico …

[HTML][HTML] A Systematic Literature review for the rig scheduling problem: Classification and state-of-the-art

IM Santos, S Hamacher, F Oliveira - Computers & Chemical Engineering, 2021 - Elsevier
Rigs are critical capital-intensive resources for oil and gas exploration and production
operations, such as drilling, completion, and workover. The Rig Scheduling Problem (RSP) …

Innovative approaches for full subsea P&A create new opportunities and cost benefits

TM Øia, MM Aarlott, T Vrålstad - SPE Norway Subsurface Conference?, 2018 - onepetro.org
Plug and abandonment (P&A) of subsea wells is very costly and usually requires semi-
submersible drilling rigs (SSR). To reduce total costs of the subsea P&A campaigns, it is …

[HTML][HTML] An optimization model for the planning of offshore plug and abandonment campaigns

S Bakker, T Vrålstad, A Tomasgard - Journal of Petroleum Science and …, 2019 - Elsevier
Plug and abandonment (P&A) operations can be time-consuming and thus very costly,
especially for subsea fields. P&A of subsea wells require dedicated vessels such as high …

[PDF][PDF] Data-driven joint chance-constrained optimization for the workover rig scheduling problem

S Hamacher - 2022 - maxwell.vrac.puc-rio.br
Iuri Martins Santos Data-driven joint chance-constrained optimization for the workover rig
scheduling problem Page 1 Iuri Martins Santos Data-driven joint chance-constrained …

[PDF][PDF] An Optimization Model for the Planning of O shore Plug and Abandonment Campaigns

S Bakkera, T Vrålstad, A Tomasgarda - researchgate.net
Plug and abandonment (P&A) operations can be time-consuming and thus very costly,
especially for subsea fields. P&A of subsea wells require dedicated vessels such as high …

Optimization of Combined Fleet and Installation Process for a Floating Offshore Wind Farm

IS Haldorsen - 2020 - ntnuopen.ntnu.no
The rising need of alternative energy sources has resulted in an increasing interest in wind
energy. In recent years, wind farm locations have shifted from land-based sites towards …