公开(公告)号：US20150291901A1

公开(公告)日：2015-10-15

申请号：US14646791

申请日：2012-11-26

Applicant: STATOIL PETROLEUM AS

Inventor： Knut Arild Maråk ,  Arne Olav Fredheim ,  Bernt Henning Rusten ,  Lars Henrik Gjertsen

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

CPC classification number: C10L3/106 ,  B01D3/36 ,  B01D53/26 ,  C10L3/08 ,  C10L3/107 ,  E21B43/36 ,  E21B43/40

Abstract: A method and system is provided for dehydration of a gas phase and hydrate inhibition of a liquid hydrocarbon phase in a produced multiphase hydrocarbon fluid stream containing water, comprising the steps of: 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; wherein the first gas phase has a water dew point which is lower than that of the initial multiphase hydrocarbon fluid stream and the second gas phase has a lower water dew point than the first gas phase; characterised in that the hydrate inhibitor has a water content that is low enough to enable it to dry the first gas phase, said hydrate inhibitor being separated off with the condensed liquids in step iii) and mixed with a part or all of the liquid phase from the separation in step i) to inhibit said liquid phase.

Abstract translation: 提供了一种方法和系统，用于在产生的含水多相烃流体流中气相脱水和液体烃相的水合物抑制，包括以下步骤：i）将烃流体流分离成液相和第一气体 相; ii）向第一气相中加入水合物抑制剂; 和iii）分离冷凝液体和第二气相; 其中所述第一气相的水露点低于所述初始多相烃流体流的水露点，并且所述第二气相具有比所述第一气相低的水露点; 其特征在于，水合物抑制剂的水含量足够低以使其能够干燥第一气相，所述水合物抑制剂在步骤iii）中与冷凝液体分离，并与一部分或全部液相从 步骤i）中的分离以抑制所述液相。

公开(公告)号：US11733418B2

公开(公告)日：2023-08-22

申请号：US16393681

申请日：2019-04-24

Applicant: STATOIL PETROLEUM AS

Inventor： Harald Westerdahl ,  Mark Thompson ,  Lasse Amundsen

IPC: G01V1/38 ,  G01V1/36

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.

公开(公告)号：US11143788B2

公开(公告)日：2021-10-12

申请号：US15572444

申请日：2015-05-08

Applicant: STATOIL PETROLEUM AS

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

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

Abstract: 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

Applicant: STATOIL PETROLEUM AS

Inventor： Sheng XU ,  Hongbo ZHOU

IPC: G01V1/30 ,  G01V99/00

Abstract: 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

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.

公开(公告)号：US10386520B2

公开(公告)日：2019-08-20

申请号：US15309007

申请日：2014-05-07

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.

公开(公告)号：US10358609B2

公开(公告)日：2019-07-23

申请号：US15538861

申请日：2014-12-23

Applicant: STATOIL PETROLEUM AS

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

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

Abstract: 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

Applicant: STATOIL PETROLEUM AS

Inventor： Morten Eidem ,  Stein Børre Torp ,  Torgeir Wenn

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

Abstract: 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：US20190093039A1

公开(公告)日：2019-03-28

申请号：US16200857

申请日：2018-11-27

Applicant: Statoil Petroleum AS

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

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

Abstract: 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：US10202821B2

公开(公告)日：2019-02-12

申请号：US14915044

申请日：2013-08-30

Applicant: STATOIL PETROLEUM AS

Inventor： Pål Viggo Hemmingsen ,  Gjermund Grimsbo

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

Abstract: 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.