187 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
Optically Machine Readable Identifiers for Tubular Sections
4 Jan 24
The method includes providing first and second machine readable codes on an external surface of each tubular section wherein the second code encodes less information than the first code and is derivable from, or mapped to, information encoded in the first code; using a machine to read the first machine readable code at a first pipe handling location on said platform; storing information of the read first codes; moving the sections in turn to a second pipe handling location, the second pipe handling location being a tubular structure assembly location on said platform or a location intermediate said first and second locations; using an optical machine at or close to the second pipe handling location to read the second codes from positioned sections; and storing information of the read second codes and their sequence order.
Åsmund HJULSTAD
Filed: 10 Nov 21
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
Direct Tie-in of a Pipeline
21 Dec 23
A method of installing a subsea pipeline having a direct tie-in between a first section of the pipeline and a subsea structure, wherein, after installation, the first section is located at a tie-in position.
Erik LEVOLD, Håvar ILSTAD, Marie Finstad OPGÅRD
Filed: 7 Oct 21
Utility
Tie-in of subsea pipeline
21 Dec 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: 1 Sep 23
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
Estimating Primary and Secondary Acoustic Velocities In Rock
9 Nov 23
A method of estimating the primary and secondary acoustic velocities, Vp and Vs, of formation surrounding a first wellbore includes obtaining well logging data for a multiplicity of other wellbores to collect, for each other wellbore a plurality of input data sets including at least a Nuclear Magnetic Resonance logging data set, and an element composition scanning data set.
Harald FLESCHE
Filed: 10 Sep 21
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
Reservoir Fluid Mapping In Mature Fields
5 Oct 23
A method of mapping reservoir fluid in a mature field includes identifying a region of interest within a hydrocarbon field, drilling a plurality of production wells through the region of interest, and collecting mud gas data as each production well is drilled.
Tao YANG
Filed: 2 Jul 21
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
Mooring System for Floating Wind Turbine
17 Aug 23
A wind turbine system including a rotationally asymmetric floating wind turbine installation and a rotationally asymmetric mooring system connected to the floating wind turbine installation.
Bjørn SKAARE
Filed: 22 Jul 21
Utility
Reservoir Fluid Property Estimation Using Mud-gas Data
17 Aug 23
A method is disclosed for generating a machine learning model to predict a reservoir fluid property, such as gas-oil ratio or density, based on standard mud-gas and petrophysical data.
Tao YANG, Margarete Maria KOPAL, Ibnu Hafidz ARIEF, Gulnar YERKINKYZY, Knut ULEBERG
Filed: 2 Jul 21
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
Methods for Estimating a Position of a Well Path Within a Subsurface Formation
10 Aug 23
A method of estimating a position of a well path within a subsurface formation of the Earth, the method comprising determining a well path estimate using navigation measurements from a downhole tool and a position estimate derived from seismic data.
Marianne HOUBIERS, Steen Agerlin PETERSEN, Fredrik HANSTEEN
Filed: 22 Oct 21