86 patents
Utility
Direct tie-in of subsea conduits and structures
9 Jan 24
A method of connecting a conduit to a subsea structure is provided.
Håvar Ilstad, Erik Levold, Geir Endal, Kjell Einar Ellingsen, Bjørgulf Haukelidsæter Eidesen
Filed: 20 May 20
Utility
Subsea assembly modularisation
2 Jan 24
A subsea assembly including; a foundation, a support device; and a subsea equipment adapter frame is provided.
Idar Olav Grytdal, Harald Arnt Friisk
Filed: 22 Dec 17
Utility
Riser surge protection system
19 Dec 23
A system for liquid surge protection of a subsea riser having a horizontal portion on the seabed and a sag bend portion includes: a flexible tubing having a top end and a bottom end; a plurality of autonomous valves configured to permit liquid to pass through into the flexible tubing, wherein the autonomous valves are arranged between the top end and the bottom end of the tubing; and an inlet device coupled to the bottom end of the flexible tubing, wherein said inlet device is biased against a bottom wall the riser.
Tor Kindsbekken Kjeldby
Filed: 12 Jan 21
Utility
Method of analysing seismic data to detect hydrocarbons
14 Nov 23
A method of analysing seismic data to detect possible hydrocarbons includes determining a set of data tiles from a seismic data cube of seismic data and testing each data tile in the set of data tiles to determine whether it corresponds to a possible fluid contact.
Øyvind Skjæveland, Matteo Ravasi
Filed: 18 Dec 19
Utility
Providing for uncertainty in non-linear inversions of geophysical data
14 Nov 23
A method of obtaining a model of a sub-surface region, the model comprising a three dimensional matrix of sub-surface material property values.
Emmanuel Causse, Janniche Iren Nordskag
Filed: 11 Apr 19
Utility
Method of removing hydrocarbons from produced water
24 Oct 23
The present invention relates to a method for removing hydrocarbons from produced water, comprising: (i) separating produced water from a hydrocarbon and water mixture extracted from a subterranean formation: (ii) contacting said produced water with multivalent metal cations to produce a mixture of produced water and multivalent metal cations; and (iii) removing hydrocarbons from said mixture in a hydrocyclone and/or a compact flotation unit to give treated produced water, wherein the concentration of hydrocarbons in said produced water is less than 10% wt.
Jens Bragdø Smith, Karen Anne Gudbrandsen, Svein Viggo Aanesen, Anne Finborud
Filed: 31 Jan 18
Utility
Method of calculating temperature and porosity of geological structure
17 Oct 23
A method of calculating the temperature and/or porosity of a geological structure, wherein there is provided at least two geophysical parameters of the geological structure, the method including inverting the at least two geophysical parameters to estimate the temperature and/or porosity of the geological structure.
Ketil Hokstad
Filed: 1 Jun 18
Utility
Tie-in of subsea pipeline
10 Oct 23
A method of installing a header pipe joint 1 at a subsea structure 5 is provided, comprising providing a header pipe joint 1 having at least one valve 2 installed therein and connecting the header pipe joint 1 inline of a spool 15 or pipeline 18 prior to lowering the header pipe joint 1 to the subsea structure 5.
Kjell Einar Ellingsen, Bjørgulf Haukelidsæter Eidesen, Kristoffer Dahl
Filed: 7 May 21
Utility
Fluid flow conditioning
10 Oct 23
There is provided an apparatus 30 and method for conditioning the flow of a mixed phase flow from a supply pipe 101 from a hydrocarbon well.
Lars Brenne
Filed: 21 Jan 22
Utility
Blade pitch controller for a wind turbine
12 Sep 23
A blade pitch controller for a wind turbine includes a nominal control system and a tower feedback loop.
Bjørn Skaare, Emil Smilden
Filed: 18 Nov 20
Utility
A-annulus cementing without pumping cement
5 Sep 23
A method of plugging a well includes lowering a solid body into a wellbore by wireline; and filling the space around the solid body with a liquid plugging material.
Bård Marius Johansen
Filed: 6 Nov 19
Utility
Sampling module for multiphase flow meter
15 Aug 23
A sampling module is for mounting in a pipeline with a multiphase flow meter and for receiving multiphase fluid from the pipeline.
Kjetil Folgerø, Jan Kocbach, Anders Hallanger, Marie Bueie Holstad, Øvind Lystrup, Audun Faanes, Egil Aabel Næsguthe, Eirik Abro, Asbjørn Erdal
Filed: 13 Dec 18
Utility
Wellhead assembly
25 Jul 23
A wellhead is provided.
Lorents Reinås, Tore Geir Wernø, Harald Sigurd Nesse
Filed: 20 Sep 17
Utility
Method and system for Co
18 Jul 23
Methods of Enhanced Oil Recovery (EOR) from an oil reservoir by CO2 flooding are disclosed.
Michael Drescher, Torbjørn Fiveland, Olav Kristiansen, Thomas Levy, Knut Arild Maråk, Bengt Olav Neeraas, Per Ivar Karstad
Filed: 4 Oct 21
Utility
Method and apparatus for automated pressure integrity testing (APIT)
18 Jul 23
A method of conducting a pressure integrity test for an underground formation includes: whilst fluid is supplied to and/or released and returned from the underground formation under pressure, using an automated monitoring and supervisory system to: monitor the pressure of the fluid being supplied to and/or returned from the underground formation in real-time, monitor a volume of the fluid that is supplied to and/or returned from the underground formation in real-time, determine one or more relationship(s) for the monitored pressure and the monitored volume as the pressure and the volume vary relative to each other and/or with time during the real-time monitoring thereof, and analyze the monitored pressure and volume data using the one or more relationship(s) either in real-time or after completion of the pressure integrity test in order to provide information and/or warnings concerning at least one parameter relating to the underground formation.
Md Aminul Islam, Ole Anders Helstrup, Hans Joakim Skadsem, Sonja Moi, Liv Almas Carlsen
Filed: 11 Feb 21
Utility
Method of calculating temperature of a geological structure
30 May 23
A method of calculating the temperature of a geological structure is disclosed, wherein there is provided a magnetic parameter of the geological structure.
Bjørn Magnus Sæther, Zuzana Alasonati Tasarova, Ketil Hokstad, Kati Tänavsuu-Milkeviciene
Filed: 24 Jul 19
Utility
Method and apparatus for reducing liquid pressure
23 May 23
Christian Rosenkilde, Patrick Benjamin Müller
Filed: 26 Sep 17
Utility
In-line phase separation
18 Apr 23
A method of separating fluid phases in a well or riser.
Alastair Buchanan, Ketil Pettersen, Tor Kindsbekken Kjeldby
Filed: 12 Oct 18
Utility
Power supply system for an offshore platform
7 Mar 23
An offshore oil and gas platform has a power supply system with a cascaded arrangement for a black start.
Trond Normann Sivertsen Torvund
Filed: 4 Nov 21
Utility
Suction anchor for a subsea well
10 Jan 23
A suction anchor for a subsea well is provided.
Asle Eide, Morten Sæther, Harald Sigurd Nesse, Kristoffer Dahl, Lorents Reinås
Filed: 22 Dec 17