公开(公告)号：US20180136349A1

公开(公告)日：2018-05-17

申请号：US15572433

申请日：2015-05-08

申请人： Statoil Petroleum AS

发明人： Torgeir WIIK ,  Janniche Iren NORDSKAG ,  Anh Kiet NGUYEN ,  Emmanuel CAUSSE

IPC分类号： G01V1/28 ,  G01V3/08

CPC分类号： G01V1/282 ,  G01V3/083 ,  G01V99/005 ,  G01V2210/66

摘要： A method of estimating a set of physical parameters, the method comprising iteratively inverting an equation to minimise an error between simulated data and measured data and to provide an estimated set of physical parameters, wherein said iteratively inverting comprises at least a first inversion step and a second inversion step and wherein the simulated data depend on a model vector representing the set of physical parameters, applying a compression operator to the model vector representing the set of physical parameters to reduce the number of free variables and to produce a compressed model vector and varying the compression operator between the first inversion step and the second inversion step.

公开(公告)号：US20180017186A1

公开(公告)日：2018-01-18

申请号：US15548046

申请日：2016-02-22

申请人： Statoil Petroleum AS

发明人： Geir ENDAL ,  Jens HAUGEN

IPC分类号： F16L1/26 ,  F16L1/24 ,  F16L1/23 ,  E21B43/01 ,  F16L1/20

摘要： A method and apparatus for direct tie-in of pipelines are disclosed. An apparatus is attached to a portion of a pipeline, the apparatus including a tensioning member and a buoyancy element attached to the tensioning member such that, when submerged, the pipeline is deflected as a result of a buoyancy force tensioning the tensioning member, and on releasing the buoyancy element, direct tie-in of the pipeline is performed.

公开(公告)号：US09864086B2

公开(公告)日：2018-01-09

申请号：US14410111

申请日：2012-06-25

申请人： Torgeir Wiik ,  Per Atle Olsen ,  Lars Ole Løseth

发明人： Torgeir Wiik ,  Per Atle Olsen ,  Lars Ole Løseth

IPC分类号： G01V1/40 ,  G01V3/08

CPC分类号： G01V3/08 ,  G01V3/083

摘要： A method for estimating saturation using mCSEM data and stochastic petrophysical models by quantifying the average water saturation in a reservoir given the transverse resistance (TR) obtained from mCSEM data, including the following steps: a) obtaining mCSEM survey data from a subsurface region of interest, b) performing an inversion of the obtained mCSEM data, c) subtracting a background resistivity trend from the mCSEM inversion data from the resistivity trend of the mCSEM inversion data from inside a hydrocarbon reservoir, d) estimating the location of an anomaly in the mCSEM inversion data, e) estimating the magnitude of the transverse resistance associated with an anomaly from the mCSEM inversion data, f) estimating an initial average reservoir saturation corresponding to transverse resistance using a stochastic petrophysical model and Monte Carlo simulation connecting reservoir parameters to transverse resistance, and g) integrating the obtained saturation distribution as a function of transverse resistances over the assumed distribution of transverse resistances to obtain a final estimation of the fluid saturation probability.

公开(公告)号：US09840905B2

公开(公告)日：2017-12-12

申请号：US14123044

申请日：2011-06-01

申请人： Gjermund Grimsbo ,  Marcus Fathi ,  Bjarne Bugten

发明人： Gjermund Grimsbo ,  Marcus Fathi ,  Bjarne Bugten

IPC分类号： G01H1/00 ,  E21B47/09 ,  G01H1/06 ,  E21B47/00

CPC分类号： E21B47/091 ,  E21B47/0005 ,  G01H1/06

摘要： A method and apparatus for determining the location of a material located behind an obstruction. A plurality of acoustic resonators (6) having a known resonant frequency are dispersed in the material (3), the material to be located on a first side of the obstruction (2). An instrument (5) is provided at an opposite side of the obstruction to the material. The instrument emits an acoustic signal and measures a response. If the resonant frequency is detected, it is determined that the material is located substantially adjacent to the instrument. The apparatus may be used for determining the height of cement slurry located between a well casing wall and a borehole.

公开(公告)号：US20170349841A1

公开(公告)日：2017-12-07

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： C10G53/10 ,  E21B43/40

CPC分类号： C10G53/10 ,  C10G17/04 ,  C10G31/08 ,  C10G2300/205 ,  C10G2300/308 ,  E21B43/40

摘要： The present invention provides a process for removing metal naphthenate from a crude hydrocarbon mixture comprising: —mixing said crude hydrocarbon mixture (1) comprising metal naphthenate with an acid (3) in the presence of water, wherein said acid converts said metal naphthenate to naphthenic acids and metal salts; —allowing said metal salt to partition into a water phase; —separating said crude heavy hydrocarbon mixture (5) comprising naphthenic acid and said water phase (6) comprising said metal salt; and —preferably pumping said water phase comprising metal salt to a formation.

公开(公告)号：US09823376B2

公开(公告)日：2017-11-21

申请号：US14776528

申请日：2013-03-15

申请人： STATOIL PETROLEUM AS

发明人： Ioan-Alexandru Merciu

IPC分类号： G01V1/46 ,  E21B47/09 ,  E21B47/00 ,  E21B47/14

CPC分类号： G01V1/46 ,  E21B47/0005 ,  E21B47/091 ,  E21B47/14

摘要： An acoustic measurement tool comprises a transmitter for generating acoustic signals and at least one acoustic receiver spaced from the transmitter and configured to receive an acoustic signal, generated by the transmitter, and which has encountered a medium of interest. Moreover, at least one acoustic reference receiver is located adjacent the transmitter and is configured to receive an acoustic signal, generated by the transmitter, prior to the acoustic signal encountering the medium of interest.

公开(公告)号：US09816358B2

公开(公告)日：2017-11-14

申请号：US15130472

申请日：2016-04-15

申请人： STATOIL PETROLEUM AS

发明人： Audun Faanes ,  Halvor Kjørholt ,  Torstein Vinge

IPC分类号： E21B43/10 ,  E21B29/10 ,  E21B33/035 ,  E21B33/047

CPC分类号： E21B43/103 ,  E21B29/10 ,  E21B33/035 ,  E21B33/047 ,  E21B43/10 ,  E21B43/101

摘要： Reducing the diameter of a well bore has many advantages. To achieve this a subsurface well bore is provided comprising one or more expandable sleeve components, preferably expandable liners, each expandable sleeve component being fully overlapped by one or more non expandable sleeve component, preferably conventional liners, such that the interior of the well bore is cased entirely by non expandable sleeve components. In addition the through holes for downhole lines can be provided within the well head rather than the tubing hanger. As the tubing hanger does not need to provide space for through holes and associated mounting couplings, its diameter can be reduced, thus reducing the internal diameter of the well bore by several inches.

公开(公告)号：US20170241225A1

公开(公告)日：2017-08-24

申请号：US15513048

申请日：2015-09-17

申请人： STATOIL PETROLEUM AS

发明人： Gjermund GRIMSBO ,  Marcus FATHI ,  Torgeir WENN ,  Pål Viggo HEMMINGSEN ,  Astrid BJØRGUM

IPC分类号： E21B29/02 ,  E21B47/00 ,  E21B33/12 ,  E21B33/13

CPC分类号： E21B29/02 ,  E21B33/12 ,  E21B33/13 ,  E21B47/00

摘要： There is provided a method for removing iron-containing casing from a well bore comprising providing a cathode in said well bore, wherein said cathode is connected to the negative pole of a power source; connecting said iron-containing casing to the positive pole of said power source; injecting an electrolyte into said well bore, wherein said electrolyte contacts said iron-containing casing and said cathode; applying a current so that the iron in said iron-containing casing is oxidised to iron cations; allowing said iron cations to dissolve in said electrolyte; and removing said electrolyte from said well bore. Also provided are a system for removing iron-containing casing from a well bore, a method for monitoring the removal of an iron-containing casing from a well bore and a method for plugging and abandoning a well.

公开(公告)号：US09715028B2

公开(公告)日：2017-07-25

申请号：US14953142

申请日：2015-11-27

申请人： STATOIL PETROLEUM AS

发明人： Helge Løseth ,  Lars Wensaas ,  Marita Gading ,  Kenneth Duffaut ,  Heinz Michael Springer

IPC分类号： G01V1/30

CPC分类号： G01V1/307 ,  G01V1/30 ,  G01V2210/632

摘要： A method of assessing a hydrocarbon source rock candidate uses seismic data for a region of the Earth. The data are analyzed to determine the presence, thickness and lateral extent of candidate source rock based on the knowledge of the seismic behavior of hydrocarbon source rocks. An estimate is provided of the organic content of the candidate source rock from acoustic impedance. An estimate of the hydrocarbon generation potential of the candidate source rock is then provided from the thickness and lateral extent of the candidate source rock and from the estimate of the organic content.

公开(公告)号：US09702745B2

公开(公告)日：2017-07-11

申请号：US14239519

申请日：2011-08-19

申请人： Reidar Barfod Schüller ,  Lene Amundsen ,  Pål Viggo Hemmingsen ,  Rainer Josef Hoffmann

发明人： Reidar Barfod Schüller ,  Lene Amundsen ,  Pål Viggo Hemmingsen ,  Rainer Josef Hoffmann

IPC分类号： G01F1/68 ,  G01F1/684 ,  G01F1/696 ,  G01F1/74

CPC分类号： G01F1/6847 ,  G01F1/6965 ,  G01F1/74

摘要： A method and apparatus for determining multiphase flow characteristics inside production equipment containing at least two fluids. A pulse of heat from a heat source adjacent to the production equipment is provided, and a thermal response to the pulse is measured at each of a plurality of temperature sensors located adjacent to the production equipment. The thermal response measurement includes a time constant obtained from a measured decline in the temperature after the pulse of heat has been provided. The measured thermal responses are used to determine parameters of a fluid contained in the production equipment in proximity to each of the temperature sensors. The determined fluid parameters are in turn used to determine multiphase flow characteristics.