公开(公告)号：US11733418B2

公开(公告)日：2023-08-22

申请号：US16393681

申请日：2019-04-24

申请人： STATOIL PETROLEUM AS

发明人： Harald Westerdahl ,  Mark Thompson ,  Lasse Amundsen

IPC分类号： G01V1/38 ,  G01V1/36

CPC分类号： G01V1/364 ,  G01V1/38 ,  G01V2210/1293 ,  G01V2210/1427 ,  G01V2210/324

摘要： 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.

公开(公告)号：US11143788B2

公开(公告)日：2021-10-12

申请号：US15572444

申请日：2015-05-08

申请人： STATOIL PETROLEUM AS

发明人： Emmanuel Causse ,  Anh Kiet Nguyen ,  Janniche Iren Nordskag ,  Frank Agnar Maaø

IPC分类号： G01V99/00 ,  G01V3/08 ,  G06F17/16 ,  G06F111/10 ,  G01V3/165

摘要： A method of solving a geophysical inverse problem for estimating a physical parameter, the method comprising providing a model vector representing the physical parameter, transforming the model vector by a first operator to provide a first transformed model vector, solve the inverse problem for the first transformed model vector to provide a first solution, transforming the model vector by a second operator to produce a second transformed model vector, solve the inverse problem for the second transformed model vector to provide a second solution, calculating a weighted sum of the first solution and the second solution.

公开(公告)号：US20200271802A1

公开(公告)日：2020-08-27

申请号：US16871771

申请日：2020-05-11

申请人： STATOIL PETROLEUM AS

发明人： Sheng XU ,  Hongbo ZHOU

IPC分类号： G01V1/30 ,  G01V99/00

摘要： There is described embodiments relating to a method of determining a wave field in an anisotropic subsurface of the Earth. The method includes numerically solving a decoupled quasi-acoustic single wave mode wave equation based on spatially varied anisotropic parameters, to determine the wave field in the anisotropic subsurface.

公开(公告)号：US10480279B2

公开(公告)日：2019-11-19

申请号：US16231798

申请日：2018-12-24

申请人： STATOIL PETROLEUM AS

发明人： Pål Viggo Hemmingsen ,  Gjermund Grimsbo ,  Alastair Buchanan

IPC分类号： E21B33/13 ,  E21B33/134 ,  E21B17/00 ,  E21B34/06

摘要： 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.

公开(公告)号：US10386520B2

公开(公告)日：2019-08-20

申请号：US15309007

申请日：2014-05-07

申请人： STATOIL PETROLEUM AS

发明人： Harald Westerdahl ,  Peter Hanssen ,  Per Magnus Sparrevik ,  Stephen Walter Hayes ,  Klaus Tronstad

IPC分类号： G01V1/38

摘要： 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.

公开(公告)号：US10358609B2

公开(公告)日：2019-07-23

申请号：US15538861

申请日：2014-12-23

申请人： STATOIL PETROLEUM AS

发明人： Knut Grande ,  Hege Kummernes ,  Kim Reidar Høvik ,  Jens Emil Vindstad ,  Heidi Mediaas ,  Jorunn Steinsland Rosvoll ,  Ingvild Johanne Haug

IPC分类号： E21B43/34 ,  E21B43/40 ,  C10G17/04 ,  C10G53/10 ,  C10G31/08

摘要： Metal naphthenate is removed from a crude hydrocarbon mixture by a process. The process includes mixing the crude hydrocarbon mixture comprising metal naphthenate with an acid in the presence of water, wherein the acid converts the metal naphthenate to naphthenic acid and metal salt; allowing the metal salt to partition into a water phase; and separating the crude heavy hydrocarbon mixture comprising naphthenic acid and the water phase comprising the metal salt.

公开(公告)号：US10294731B2

公开(公告)日：2019-05-21

申请号：US15424545

申请日：2017-02-03

申请人： STATOIL PETROLEUM AS

发明人： Morten Eidem ,  Stein Børre Torp ,  Torgeir Wenn

IPC分类号： E21B17/05 ,  E21B17/10 ,  E21B34/10 ,  E21B34/00

摘要： A method of completing a well which has a longitudinal axis along a direction with a horizontal component, the method comprising rotating a first string and moving the first string into the well along the longitudinal axis of the well, providing a swivel joint rotatably connecting the first string to a second string, moving the second string along the longitudinal axis of the well into the well, wherein the second string comprises completion equipment, moving the completion equipment into the well along the longitudinal axis of the well.

公开(公告)号：US10202821B2

公开(公告)日：2019-02-12

申请号：US14915044

申请日：2013-08-30

申请人： STATOIL PETROLEUM AS

发明人： Pål Viggo Hemmingsen ,  Gjermund Grimsbo

IPC分类号： E21B33/13 ,  E21B33/134 ,  E21B17/10 ,  E21B17/00

摘要： A method of plugging a well includes providing a tubing in a wellbore, wherein in a location for a well plug, the tubing is provided with an internal cable section placed inside of the tubing and/or an external cable section placed outside of the tubing, the external cable section including a fluid-tight cable suitable for forming a sealing part of the well plug, and forming a plug in the well in the location for the well plug without pulling the tubing from the wellbore.

公开(公告)号：US10184090B2

公开(公告)日：2019-01-22

申请号：US14646791

申请日：2012-11-26

申请人： Statoil Petroleum AS

发明人： Knut Arild Maråk ,  Arne Olav Fredheim ,  Bernt Henning Rusten ,  Lars Henrik Gjertsen ,  Baard Kaasa

IPC分类号： C10L3/10 ,  C10L3/08 ,  E21B43/40 ,  E21B43/36 ,  B01D3/36 ,  B01D53/26

摘要： A method and system for dehydration of a gas phase and hydrate inhibition of a liquid hydrocarbon phase in a multiphase hydrocarbon fluid stream containing water. The method may include (i) separating the hydrocarbon fluid stream into a liquid phase and a first gas phase, (ii) adding hydrate inhibitor to the first gas phase, and (iii) separating off condensed liquids and a second gas phase. The first gas phase has a water dew point that is lower than the initial multiphase hydrocarbon fluid stream and the second gas phase has a lower water dew point than the first gas phase. The hydrate inhibitor has a water content that is low enough to enable it to dry the first gas phase, the hydrate inhibitor being separated off with the condensed liquids and mixed with a part or all of the liquid phase from the separation to inhibit the liquid phase.

公开(公告)号：US20180200669A1

公开(公告)日：2018-07-19

申请号：US15923617

申请日：2018-03-16

申请人： STATOIL PETROLEUM AS

发明人： Baard KAASA ,  Bernt Henning RUSTEN ,  Knut Arild MARAK ,  Arne Olav FREDHEIM

IPC分类号： B01D53/26 ,  C10L3/10

CPC分类号： B01D53/265 ,  B01D2256/245 ,  C10L3/106 ,  C10L3/107

摘要： The present invention concerns a method for lowering the water dew point subsea in a produced multiphase hydrocarbon fluid stream containing water, the method comprising the steps of: separating (10) the hydrocarbon fluid stream (1) into a liquid phase (3) and a first gas phase (2); cooling (20) the first gas phase in a controlled mariner to knock out water or condensing water and optionally other condensates while keeping the fluid above a hydrate formation temperature thereof; separating off condensed liquids (6) and a second gas phase; wherein the second gas phase (8) has a water dew point which is lower than that of the initial multiphase hydrocarbon fluid stream. The invention also concerns a system for lowering the water dew point subsea.