公开(公告)号：US20180245453A1

公开(公告)日：2018-08-30

申请号：US15756451

申请日：2016-05-10

Applicant: STATOIL PETROLEUM AS

Inventor： Robert AASHEIM ,  Dominik Andreas BREU ,  Frank Møller NIELSEN ,  Bjarne BUGTEN ,  Kjetil JOHANNESSEN ,  Einar Skavland IDSØ ,  Lisbeth VOLD

IPC: E21B47/06 ,  E21B36/04 ,  E21B43/08 ,  E21B47/10 ,  G01F1/68

CPC classification number: E21B47/065 ,  E21B36/04 ,  E21B43/08 ,  E21B47/10 ,  E21B47/102 ,  G01F1/68 ,  G01F1/7084

Abstract: An apparatus for determining properties of fluid flowing into a well includes an inflow channel providing a path for fluid to a pipe, a heater arranged to heat at least part of the fluid in the inflow channel, and a temperature sensor arranged to measure the temperature of the fluid in the inflow channel.

公开(公告)号：US20180187112A1

公开(公告)日：2018-07-05

申请号：US15904563

申请日：2018-02-26

Applicant: Statoil Petroleum AS

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

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

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：US20180142527A1

公开(公告)日：2018-05-24

申请号：US15821352

申请日：2017-11-22

Applicant: STATOIL PETROLEUM AS

Inventor： Gisle Stjern ,  Gjermund GRIMSBO ,  Halvor KJØRHOLT ,  Pål Viggo HEMMINGSEN

IPC: E21B23/04 ,  E21B33/14 ,  E21B33/12

CPC classification number: E21B23/04 ,  E21B33/1204 ,  E21B33/134 ,  E21B33/14 ,  E21B43/116

Abstract: A method of plugging a well extending into a formation to facilitate temporary or permanent abandonment of the well. The method comprises conveying in one trip, a plug assembly and one or more explosive charges through the well together with a structure for providing wet sealant. The plug assembly comprises a foundation plug for supporting the wet sealant. The plug assembly is set beneath a plug formation location, prior to providing the wet sealant. The method also comprises providing the wet sealant to the plug formation location via the structure, so as to submerge the one or more explosive charges in the wet sealant, and then detonating the one or more explosive charges in the wet sealant at the plug formation location to cut through a tubular or tubulars of the well and into the formation.

公开(公告)号：US20180136365A1

公开(公告)日：2018-05-17

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 ,  G06F17/16

CPC classification number: G01V99/005 ,  G01V3/083 ,  G01V3/165 ,  G01V2003/086 ,  G06F17/16 ,  G06F2217/16

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：US20180128088A1

公开(公告)日：2018-05-10

申请号：US15569698

申请日：2015-04-27

Applicant: STATOIL PETROLEUM AS

Inventor： Alexey PAVLOV ,  Kjetil FJALESTAD

IPC: E21B43/12 ,  E21B43/16 ,  E21B44/06 ,  E21B47/00 ,  F04D15/02

CPC classification number: E21B43/128 ,  E21B43/12 ,  E21B43/16 ,  E21B44/06 ,  E21B47/0007 ,  F04D15/0209 ,  F04D15/0245

Abstract: The present invention provides a method for inverting oil continuous flow to water continuous flow and reaching one or more desired production parameters in a well producing fluid containing oil and water or inverting oil continuous flow to water continuous flow and reaching one or more desired transport parameters in a pipeline transporting fluid containing oil and water wherein there is a pump in the well or transport pipeline, comprising the following steps: (a) reducing the pump frequency until either inversion from oil continuous production to water continuous flow is achieved or a predefined stopping condition is reached; (b) if inversion has not been achieved in step (a), adjusting the wellhead pressure in the well or the pressure at the reception side of the transport line to achieve the inversion; (c) stabilising the flow at the condition reached in steps (a) or (b); and (d) carefully adjusting one or both of the wellhead pressure and pump frequency to reach the one or more desired production parameters.

公开(公告)号：US09963942B2

公开(公告)日：2018-05-08

申请号：US15344010

申请日：2016-11-04

Applicant: Statoil Petroleum AS

Inventor： Morten Eidem ,  Tore Weltzin ,  Gaute Grindhaug ,  Jafar Abdollahi

IPC: E21B17/10

CPC classification number: E21B17/1078 ,  E21B17/105 ,  E21B17/1057 ,  E21B17/1064

Abstract: A centralizer includes a centralizer body to be situated at the outer surface of a pipe string in the form of casing, liner, or the like used while drilling, the centralizer body being formed with a plurality of outer centralizer blades arranged in an inclined manner to the longitudinal axis thereof, wherein the centralizer body has an separate split inner tube secured to the pipe string by means of a press fit, and low friction inner surface of the centralizer body and separate center tube facing each other are made from low friction material.

公开(公告)号：US20180016883A1

公开(公告)日：2018-01-18

申请号：US15546816

申请日：2016-01-27

Applicant: STATOIL PETROLEUM AS

Inventor： Ane KJØLHAMAR ,  Anita SKARSTAD

IPC: E21B43/16 ,  B09C1/10 ,  C09K8/582 ,  C09K8/584 ,  C12R1/01 ,  E21B43/24

CPC classification number: E21B43/16 ,  B09C1/10 ,  C09K8/582 ,  C09K8/584 ,  C12R1/01 ,  E21B43/24

Abstract: The invention provides an isolated bacterial strain selected from the group of bacterial strains deposited under accession number ECACC 15010609; ECACC 15010601; ECACC 15010602; ECACC 15010603; ECACC 15010604; ECACC 15010605; ECACC 15010606; ECACC 15010607; ECACC 15010608; and a bacterial strain having all the identifying characteristics of one or more of the strains. The use of said bacterial strains in a method of treating an oil reservoir, a method of bioremediation and a method for the production of a biosurfactant-like substance is also provided. The invention still further provides a biosurfactant-like substance so obtained and the use thereof in method of enhanced oil recovery (EOR) and a method of environmental remediation.

公开(公告)号：US20180016545A1

公开(公告)日：2018-01-18

申请号：US15546771

申请日：2016-01-27

Applicant: STATOIL PETROLEUM AS

Inventor： Ane KJØLHAMAR ,  Anita SKARSTAD ,  Hans-Kristian KOTLAR

IPC: C12N1/26 ,  C09K8/582 ,  B01F3/08

CPC classification number: C12N1/26 ,  B01F3/08 ,  C09K8/582

Abstract: The invention provides an automated method for selecting a microbial strain from within a microbial strain library which can degrade or emulsify a target oil substrate. An apparatus, device or system adapted to perform the method of the invention is further provided. The use of the method of the invention in a method for preparing a microbial inoculum suitable for use to degrade or emulsify a target oil substrate; in a method of treating an oil reservoir or environmental remediation; and in a method for producing a biosurfactant-like substance is also provided.

公开(公告)号：US20180003008A1

公开(公告)日：2018-01-04

申请号：US15545051

申请日：2015-12-24

Applicant: STATOIL PETROLEUM AS

Inventor： Per OSEN

IPC: E21B41/08 ,  E21B33/064 ,  E21B33/038

Abstract: A subsea wellhead assembly 1 comprises: a subsea wellhead 2; a template 6 associated with the wellhead; subsea riser system equipment 4 connected to the wellhead and one or more connection members. The subsea riser system equipment 4 is also connected to the template 6 by the one or more connection members so that lateral support is provided to the subsea riser system equipment 4 from the template. A method of installing the subsea wellhead assembly 1 is also provided.

公开(公告)号：US09784076B2

公开(公告)日：2017-10-10

申请号：US14696008

申请日：2015-04-24

Applicant: STATOIL PETROLEUM AS

Inventor： Tor Bjorge ,  Lars Brenne ,  Harald Underbakke ,  Bjorn-André Egerdahl ,  Rune Mode Ramberg ,  William Bakke

IPC: E21B43/01 ,  F04D13/12 ,  F04D25/16 ,  F04D29/58 ,  F04D25/06 ,  F04D13/06 ,  F04D29/28 ,  F04D29/22 ,  F04D29/70 ,  F04D29/40 ,  F04D29/046 ,  F04D29/05 ,  F04F5/04 ,  F04D1/00 ,  F04D17/08 ,  E21B43/36 ,  F04D31/00

CPC classification number: E21B43/01 ,  E21B43/36 ,  F04D1/00 ,  F04D13/06 ,  F04D13/12 ,  F04D17/08 ,  F04D25/06 ,  F04D25/0686 ,  F04D25/16 ,  F04D29/046 ,  F04D29/05 ,  F04D29/22 ,  F04D29/284 ,  F04D29/40 ,  F04D29/58 ,  F04D29/70 ,  F04D31/00 ,  F04F5/04 ,  Y10T137/2036 ,  Y10T137/2562 ,  Y10T137/2931 ,  Y10T137/3003 ,  Y10T137/87265

Abstract: A gas compression system and a method of flow conditioning by a gas compression system are provided. A gas compression system includes a compact flow conditioner in a form of a flow conditioner tank and a combined multi-phase pump and compressor unit comprising an impeller configured to compress a mixture of gas and liquid, wherein the gas compression system is configured such that the gas and the liquid are separated in the flow conditioner tank, the separated gas and liquid are sucked up through the separate gas and liquid pipes and re-mixed again upstream of the impeller, and the liquid is distributed in a gas flow by Venturi effect, and wherein the Venturi effect is obtained by a constriction in the outlet pipe to the impeller, just upstream of the impeller.