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公开(公告)号：US10697286B2
公开(公告)日：2020-06-30
申请号：US15570085
申请日：2016-04-29
Applicant: STATOIL PETROLEUM AS
Inventor： Ioan-Alexandru Merciu
Abstract: A method of identifying a material and/or condition of a material in a borehole is described, together with related apparatus. The material may either be between first and second tubulars or between a first tubular and a wall of the borehole. The method may include providing a reference quality factor (Qreference) for one or more known materials in one or more known conditions and measuring a downhole quality factor (Qmeasured) of the material and/or material condition to be identified. A spectral ratio α=(Qmeasured/Qreference) may then be computed for one or more known materials under one or more known conditions followed by an analysis of the spectral ratios to identify the material and/or condition of the material in the borehole.
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公开(公告)号：US10520112B2
公开(公告)日：2019-12-31
申请号：US15546225
申请日：2016-02-22
Applicant: Statoil Petroleum AS
Inventor： Geir Endal , Jens Haugen
Abstract: A method and apparatus are provided for laying pipelines. The apparatus is attached to a portion of a pipeline and includes a tensioning member and a buoyancy element attached to a mid-portion of the tensioning member. When the buoyancy element is submerged, the buoyancy force tensions the tensioning member, and the pipeline will take the intended deflected shape to follow seabed depressions.
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公开(公告)号：US20190271790A1
公开(公告)日：2019-09-05
申请号：US16408758
申请日：2019-05-10
Applicant: STATOIL PETROLEUM AS
Inventor： Harald WESTERDAHL , Peter HANSSEN , Per Magnus SPARREVIK , Stephen Walter HAYES , Klaus TRONSTAD
IPC: G01V1/38
Abstract: A sensor system for deployment on or close to the seabed in marine seismic surveys includes a central hub, and a plurality of arms coupled to the central hub. Each arm has a degree of freedom of movement with respect to the central hub. The system further includes at least one seismic sensor mounted to each of said arms.
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公开(公告)号：US20190250297A1
公开(公告)日：2019-08-15
申请号：US16393681
申请日：2019-04-24
Applicant: STATOIL PETROLEUM AS
Inventor： Harald WESTERDAHL , Mark THOMPSON , Lasse AMUNDSEN
CPC classification number: G01V1/364 , G01V1/38 , G01V2210/1293 , G01V2210/1427 , G01V2210/324
Abstract: A method for use in surveying a subsurface region beneath a body of water by detecting compressional, P, waves propagating through the body of water includes locating one or more sensor systems in the water at or close to the subsurface region, using the or each sensor system to detect P waves in the water, and translating all or a portion of the data representing the detected P waves to a higher level above the subsurface region. In the method, the effects of S waves, propagating in the subsurface and converted at the water/subsurface interface into P waves propagating in the water or along the seabed interface, in the translated data is reduced.
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公开(公告)号：US10365388B2
公开(公告)日：2019-07-30
申请号：US15309043
申请日：2015-05-06
Applicant: STATOIL PETROLEUM AS
Inventor： Harald Westerdahl , Mark Thompson , Lasse Amundsen
Abstract: A method for use in surveying a subsurface region beneath a body of water by detecting S waves propagating through the subsurface region. The method comprises using a first sensor configuration to detect mixed S and P waves on or in the subsurface region, using a second sensor configuration located on or in relatively close proximity to the subsurface region to detect P waves in the water, and using the P waves detected in the water to compensate the detected mixed S and P waves, and thereby attenuate the effects of P waves in the mixed S and P waves.
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Patent Agency Ranking
公开(公告)号：US10344582B2
公开(公告)日：2019-07-09
申请号：US15539299
申请日：2015-12-21
Applicant: STATOIL PETROLEUM AS
Inventor： Ioan-Alexandru Merciu
Abstract: A downhole installation includes a first pipe layer, a second pipe layer about the first pipe layer, an annulus between the first and second pipe layers, and a geological formation outside of the second pipe layer. A method for evaluating the downhole installation includes: exciting a flexural wave in the first pipe layer using an angled acoustic transmitter; receiving third interface echo data using a plurality of angled acoustic receivers at different locations along the longitudinal extent of the pipe layers; generating acoustic resonance across the thickness of the first and second pipe layers by use of full waveform excitation; receiving the acoustic response wave field generated by the full waveform; identifying a suitable component of the acoustic response wave field; determining if the material outside the second pipe layer is fluid or solid; and analyzing the third interface echo data to thereby evaluate material conditions in the annulus.
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公开(公告)号：US20190128093A1
公开(公告)日：2019-05-02
申请号：US16218286
申请日：2018-12-12
Applicant: STATOIL PETROLEUM AS
Inventor： Pål Viggo HEMMINGSEN , Gjermund GRIMSBO
IPC: E21B33/13 , E21B17/00 , E21B33/134 , E21B17/10
Abstract: A method of plugging a well in a plug and abandonment procedure includes providing a tubing in a wellbore, in a location for a well plug, the tubing is provided with an internal cable section placed inside of the tubing, and forming a plug in the well in said location for the well plug across the width of the tubing and a surrounding wellbore annulus to create a permanent barrier without pulling the tubing from the wellbore. The step of forming the plug includes substantially removing the internal cable section inside the tubing and forming a fluid-tight seal in the tubing where the internal cable section has been removed, for separating, on either side of the seal, first and second fluid volumes of the tubing.
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公开(公告)号：US10202550B2
公开(公告)日：2019-02-12
申请号：US14980600
申请日：2015-12-28
Applicant: STATOIL PETROLEUM AS
Inventor： Jens Emil Vindstad , Heidi Mediaas , Knut Vebjørn Grande
IPC: B01F3/08 , A23L33/10 , B01F17/00 , C10M129/56 , C10M129/58 , C10G31/08 , C07C51/347 , C07C51/41 , C07C51/46 , C10M129/93 , C10G19/02 , C10G29/06
Abstract: A process for the preparation of at least one ARN acid or salt thereof comprising: (I) allowing at least one ARN acid salt to form during the production of crude oil in the presence of water; (II) removing at least 5 wt % of the formed at least one ARN acid salt, e.g. from the oil water interface; and optionally (III) converting said salt into an acid.
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公开(公告)号：US10190387B2
公开(公告)日：2019-01-29
申请号：US15024268
申请日：2014-09-23
Applicant: STATOIL PETROLEUM AS
Inventor： Pål Viggo Hemmingsen , Gjermund Grimsbo , Alastair Buchanan
IPC: E21B33/13 , E21B33/134 , E21B17/00 , E21B34/06
Abstract: A method of sealing a well comprises creating one or more openings in a tubing installed in a wellbore, in a location for a well seal; using a wireline to locate a stinger in that location; setting the stinger in that location; and forming a seal in the well in that location, by injecting sealant through said stinger.
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公开(公告)号：US10179299B2
公开(公告)日：2019-01-15
申请号：US15106531
申请日：2013-12-20
Applicant: STATOIL PETROLEUM AS
Inventor： Eivind Johannesen , Carl Birger Jenssen , Pablo Matias Dupuy
Abstract: A combined fluid collector and redistributor for a process engineering column, including a fluid collector for collecting a first fluid; a fluid redistributor arranged below the fluid collector to define a space between the fluid collector and the fluid redistributor; at least one pipe passing through the space to connect the fluid collector to the fluid redistributor; and at least one conduit extending through the fluid collector to permit a second fluid to flow through the fluid collector. There is at least one deflector in the space, wherein the at least one deflector is set at an angle relative to a central axis of the device whereby flow of the second fluid within the space is displaced angularly around the central axis.
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