公开(公告)号：US10060209B2

公开(公告)日：2018-08-28

申请号：US15515050

申请日：2015-09-18

Applicant: Statoil Petroleum AS

Inventor： Morten Lien ,  André Holm

IPC: G01V5/00 ,  E21B21/08 ,  E21B21/06 ,  E21B21/00 ,  G01F1/704 ,  G01F1/84

CPC classification number: E21B21/08 ,  E21B21/001 ,  E21B21/065 ,  E21B49/003 ,  G01F1/7042 ,  G01F1/8427

Abstract: A first property, derivable from mass, of a drilling fluid is measured at a point upstream of a cuttings removal device. A second property (also derivable from mass) is measured at a point downstream of the cuttings removal device. A difference between the properties is determined over a period of time to obtain an estimate of the rate of cuttings removal. This allows the property of the drilling fluid before and after cuttings removal to be compared to give an indication of the rate of cuttings removal, which is indicative of the borehole cleaning.

公开(公告)号：US20180163502A1

公开(公告)日：2018-06-14

申请号：US15575492

申请日：2016-05-20

Applicant: STATOIL PETROLEUM AS

Inventor： Morten EIDEM ,  Rune HAUGOM

IPC: E21B33/127 ,  E21B21/10 ,  E21B34/14 ,  E21B23/06

CPC classification number: E21B33/127 ,  E21B21/10 ,  E21B23/06 ,  E21B34/14

Abstract: A method of sealing an annulus around a drill-pipe when drilling down-hole includes providing a deflated packer on a drill-pipe when drilling down-hole; opening one or more ports to the packer using a ball-activated valve; and circulating drilling fluid to inflate said packer through said one or more ports, to thereby form a seal in the annulus around the drill-pipe. An apparatus to carry out this method is also provided.

公开(公告)号：US20180156011A1

公开(公告)日：2018-06-07

申请号：US15576048

申请日：2016-04-20

Applicant: STATOIL PETROLEUM AS

Inventor： Morten EIDEM ,  Gjermund GRIMSBO ,  Torgeir WENN

IPC: E21B34/14 ,  E21B34/12

CPC classification number: E21B34/14 ,  E21B7/20 ,  E21B34/12 ,  E21B43/086 ,  E21B43/10 ,  E21B2034/007

Abstract: A method for achieving zonal control in a wellbore when using casing or liner drilling includes providing a slotted tubular section in a wellbore while drilling; providing a sleeve adjacent to and radially overlapping with the slotted tubular section, while drilling; and moving the sleeve relative to the slotted tubular section so as to permit and/or restrict flow through the slotted tubular section in one or more selected zones.

公开(公告)号：US20180154304A1

公开(公告)日：2018-06-07

申请号：US15576450

申请日：2015-06-05

Applicant: STATOIL PETROLEUM AS

Inventor： Eivind JOHANNESSEN ,  Knut Arid MARÅK ,  Gry Pedersen KOJEN ,  Arne Olav FREDHEIM

IPC: B01D53/14 ,  B01D53/26 ,  C10L3/10 ,  E21B43/36

Abstract: A method of dehydrating a hydrocarbon gas stream including stripping water from a liquid desiccant stream using a water-undersaturated portion of the gas stream, drying the gas stream to extract the stripped water, and then further drying the partially-dried gas stream using the stripped desiccant to achieve a low water content level in the gas stream for pipeline transportation. In one embodiment, the liquid desiccant is supplied by a regeneration facility at a remote location and the liquid desiccant is returned to the regeneration facility for regeneration after drying the gas. In another embodiment, the regeneration of the desiccant is performed locally whereby the liquid desiccant is, after drying the gas, stripped again of water and reused locally.

公开(公告)号：US09976363B2

公开(公告)日：2018-05-22

申请号：US15037913

申请日：2013-11-20

Applicant: STATOIL PETROLEUM AS

Inventor： Steinar Kristoffersen ,  Øyvind Haug ,  Guillaume Gravey

IPC: E21B19/00 ,  E21B17/01 ,  H02G1/10 ,  E21B19/22

CPC classification number: E21B19/004 ,  E21B17/012 ,  E21B17/015 ,  E21B19/002 ,  E21B19/22 ,  E21B43/0107 ,  H02G1/10

Abstract: A method of installing a flexible line between an offshore platform and a subsea structure and a method of removing a flexible line deployed between an offshore platform and a subsea structure. The method of installing includes at least partially deploying the line in the water using an installation vessel located outside of an exclusion zone in the vicinity of the platform, including lowering a topside end of the line either to the seabed or to an intermediate location between the seabed and the platform. The method further includes pulling the topside end to a position within the exclusion zone and winching the topside end up to the platform, and coupling the topside end to the platform. The method of removing includes decoupling a topside end of the riser from the platform, lowering the topside end from the platform and pulling the topside end to a position outside of an exclusion zone in the vicinity of the platform, and at least partially removing the line from the water using an installation vessel located outside of the exclusion zone, including raising the topside end of the line onto the installation vessel either from the seabed or from an intermediate location between the seabed and the platform.

公开(公告)号：US20180128094A1

公开(公告)日：2018-05-10

申请号：US15570085

申请日：2016-04-29

Applicant: STATOIL PETROLEUM AS

Inventor： Ioan-Alexandru MERCIU

IPC: E21B47/00 ,  G01V1/50

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.

公开(公告)号：US20180094520A1

公开(公告)日：2018-04-05

申请号：US15564972

申请日：2015-04-15

Applicant: STATOIL PETROLEUM AS

Inventor： Torbjørn Vegard LØKKEN ,  Dag Hendrik FLØLO

IPC: E21B47/10 ,  E21B33/035 ,  E21B47/00 ,  E21B41/00

CPC classification number: E21B47/10 ,  E21B33/0355 ,  E21B41/0007 ,  E21B47/0001

Abstract: A method of calibration of an in-line monitoring instrument in a subsea installation (6), comprises using an umbilical (4) for transportation of a sample fluid from the subsea installation (6) to a topside installation (2) and/or for transportation of a reference fluid from the topside installation (2) to the subsea installation (6); comparing measurements of the sample fluid or the reference fluid by the in-line monitoring instrument with measurements of the same fluid obtained previously or subsequently by topside instruments; and adjusting the calibration of the in-line monitoring instrument in the subsea installation (6), if required, based on the results of the comparison of measurements.

公开(公告)号：US20180052126A1

公开(公告)日：2018-02-22

申请号：US15557298

申请日：2016-03-16

Applicant: STATOIL PETROLEUM AS

Inventor： Pablo Matias DUPUY ,  Audun FAANES ,  Oddbjørn Rekaa NILSSEN ,  Torbjørn Vegard LØKKEN

IPC: G01N25/68 ,  G01N9/36

CPC classification number: G01N25/68 ,  G01N9/36 ,  G01N21/85 ,  G01N33/225

Abstract: The invention relates to a method for automatically monitoring the liquid content in a gas, and in particular the gas leaving a scrubber and entering a compressor. In the method, a sample of fluid is taken from the outlet of the compressor, its temperature and pressure are automatically varied, and the pressure and temperature at which condensation forms is automatically detected. The pressure and temperature thus detected can be used to determine the liquid content in the gas. In a variant method, the temperature and pressure of the sample are automatically varied, and the rate of liquid condensation is measured to determine the liquid content. The invention also extends to a device for cooling a gas so that the liquid content of the gas can be determined, including a cooled housing with a cavity therein, and means for measuring the temperature and pressure within the cavity.

公开(公告)号：US09874059B2

公开(公告)日：2018-01-23

申请号：US15023296

申请日：2014-09-18

Applicant: STATOIL PETROLEUM AS

Inventor： Gjermund Grimsbo ,  Pål Viggo Hemmingsen ,  Rune Godøy

IPC: E21B17/10 ,  E21B43/10 ,  E21B33/13

CPC classification number: E21B17/1014 ,  E21B17/10 ,  E21B17/1021 ,  E21B17/1078 ,  E21B33/13 ,  E21B43/103

Abstract: A method of centralizing a tubing in a wellbore includes providing one or more expandable elements between the tubing and a surrounding casing located in a wellbore and expanding the expandable elements against the casing so as to cause the tubing to become centered within the casing. Alternatively, one or more portions of a tubing are expanded against a surrounding casing located in a wellbore so as to cause the tubing to become centered within the casing.

公开(公告)号：US09822632B2

公开(公告)日：2017-11-21

申请号：US14764934

申请日：2013-01-31

Applicant: STATOIL PETROLEUM AS

Inventor： Halvor Kjørholt ,  Gisle Stjern

IPC: E21B47/06 ,  E21B33/13 ,  E21B33/134 ,  E21B47/10 ,  E21B33/124

CPC classification number: E21B47/06 ,  E21B33/124 ,  E21B33/13 ,  E21B33/134 ,  E21B47/1025

Abstract: A method of plugging a well extending into a hydrocarbon bearing formation facilitates temporary or permanent abandonment of the well. The method includes forming two or more plugs within the well, the plugs being formed at longitudinally spaced apart locations whilst providing a fluid communication path from a region above the topmost plug to the or each space between adjacent plugs. This configuration facilitates pressure testing of one or more of the plugs by conducting fluid through said path.