8 results match your criteria: "Danish Offshore Technology Centre[Affiliation]"
Mar Pollut Bull
December 2024
Danish Offshore Technology Centre (DTU), - Elektrovej 375, 2800 Kgs. Lyngby, Denmark.
The offshore oilfields in the North Sea area are increasingly employed for projects beyond oil production, like carbon capture and storage (CCS). Still, the fossil fuel production from mature fields is significant. It has raised environmental concerns associated with discharging produced waters (PW) and drilling mud into the sea.
View Article and Find Full Text PDFSci Total Environ
December 2024
Danish Offshore Technology Centre, Elektrovej 375, DK-2800 Kgs. Lyngby, Denmark. Electronic address:
Trace metals and metalloids occur in small quantities in the subsurface water generated from oil wells, called produced water (PW). While these substances are present in low concentrations, PW volumes are sufficiently large that they are still a potential environmental concern. This study has focused on quantifying 71 trace metals and metalloids present in PW from Danish offshore oil production sites.
View Article and Find Full Text PDFJ Environ Manage
August 2024
Department of Environmental and Resource Engineering (DTU Sustain). Water Technology & Processes. Technical University of Denmark, Bygningstorvet 115, 2800, Lyngby, Denmark.
In many industrial processes a large amount of water with high salinity is co-produced whose treatment poses considerable challenges to the available technologies. The produced water (PW) from offshore operations is currently being discharged to sea without treatment for dissolved pollutants due to space limitations. A biofilter on the seabed adjacent to a production platform would negate all size restrictions, thus reducing the environmental impact of oil and gas production offshore.
View Article and Find Full Text PDFMagn Reson Chem
October 2024
Danish Offshore Technology Centre, Technical University of Denmark, Kongens Lyngby, Denmark.
Multi-exponential decay is prevalent in magnetic resonance spectroscopy, relaxation, and imaging. This paper describes simple MATLAB and Python functions and scripts for regularized multi-exponential analysis methods for 1D and 2D data and example test problems and experiments. Regularized least-squares solutions provide production-quality outputs with robust stopping rules in ~5 and ~20 lines of code for 1D and 2D inversions, respectively.
View Article and Find Full Text PDFSci Total Environ
December 2023
Danish Offshore Technology Centre (DTU-Offshore), Technical University of Denmark (DTU), Denmark.
Removal of sulfate from the injection seawater (desulfation) in hydrocarbon reservoirs is a Modified Salinity Water (MSW) flooding method that mitigates microbial reservoir souring, improves oil recovery, and enables produced-water re-injection (PWRI). Aside from the Improved Oil Recovery (IOR) effect, desulfation results in a cleaner production of oil through enabling PWRI and reducing the environmental impacts associated with reservoir souring and nitrate treatment. However, whether desulfation is still beneficial for mature fields, after years of the injection of untreated seawater, is a valid common concern.
View Article and Find Full Text PDFSci Total Environ
December 2023
Danish Offshore Technology Centre (DTU offshore), Technical University of Denmark, Kgs. Lyngby 2800, Denmark.
Produced water re-injection (PWRI) is a promising and sustainable strategy to manage substantial quantities of produced water for subsurface energy production systems. This approach offers an alternative to the environmentally harmful practice of marine disposal. Nonetheless, produced water re-injection may lead to considerable reductions in the injectivity.
View Article and Find Full Text PDFAdv Colloid Interface Sci
May 2023
Chair of Chemical and Process Engineering, Technical University of Berlin, Ackerstraße 76, D-13355 Berlin, Germany.
CO-switchable surfactants have selective surface-activity, which can be activated or deactivated either by adding or removing CO from the solution. This feature enables us to use them in the fabrication of responsive colloids, a group of dispersed systems that can be controlled by changing the environmental conditions. In chemical processes, including extraction, reaction, or heterogeneous catalysis, colloids are required in some specific steps of the processes, in which maximum contact area between immiscible phases or reactants is desired.
View Article and Find Full Text PDFIntegr Environ Assess Manag
September 2023
Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby, Denmark.
The management of produced water (PW) discharges from offshore oil and gas installations in the North Atlantic is under the auspices of OSPAR (Oslo/Paris convention for Protection of the Marine Environment of the North-East Atlantic). In 2010, OSPAR introduced the risk-based approach (RBA) for PW management. The RBA includes a hazard assessment estimating PW ecotoxicity using two approaches: whole-effluent toxicity (WET) and substance-based (SB).
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