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WO2016140911A1 - Procédé non intrusif de mesure d'écoulements entrants et sortants d'un puits sous-marin et systèmes associés - Google Patents

Procédé non intrusif de mesure d'écoulements entrants et sortants d'un puits sous-marin et systèmes associés Download PDF

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Publication number
WO2016140911A1
WO2016140911A1 PCT/US2016/020070 US2016020070W WO2016140911A1 WO 2016140911 A1 WO2016140911 A1 WO 2016140911A1 US 2016020070 W US2016020070 W US 2016020070W WO 2016140911 A1 WO2016140911 A1 WO 2016140911A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid level
wellbore
subsea
monitoring device
level monitoring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2016/020070
Other languages
English (en)
Inventor
Geoffrey David CANNON
Colin Stuart BUCHAN
Peter Nellessen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shell Internationale Research Maatschappij BV
Shell USA Inc
Original Assignee
Shell Internationale Research Maatschappij BV
Shell Oil Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shell Internationale Research Maatschappij BV, Shell Oil Co filed Critical Shell Internationale Research Maatschappij BV
Priority to US15/554,513 priority Critical patent/US20180073345A1/en
Priority to BR112017018717A priority patent/BR112017018717A2/pt
Publication of WO2016140911A1 publication Critical patent/WO2016140911A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/001—Survey of boreholes or wells for underwater installation
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/04—Measuring depth or liquid level
    • E21B47/047—Liquid level

Definitions

  • the present disclosure relates generally to methods of measuring flows into and out of subsea wells. More specifically, in certain embodiments, the present disclosure relates to non-obtrusive methods of measuring flows into and out of subsea wells and associated systems.
  • U.S. Patent No. 7,438,1335 describes method of suspending a well that do not require the use of a BOP stack to supplement well control. Disadvantages of such method are that the barrier systems described therein may not be suitable for use in open water environments. In addition, the methods described therein include intensive high risk wireline operations to install and verify the barriers with no means to isolate the wellbore at the mudline in the event of downhole failure.
  • the present disclosure relates generally to methods of measuring flows into and out of subsea wells. More specifically, in certain embodiments, the present disclosure relates to non-obtrusive methods of measuring flows into and out of subsea wells and associated systems.
  • the present disclosure provides a fluid level monitoring system comprising: a subsea well comprising a wellbore and a wellhead, a subsea well isolation device installed on the wellhead, and a fluid level monitoring device.
  • the present disclosure provides a method of maintaining a constant fluid level within a wellbore comprising: providing a fluid level monitoring system comprising a subsea well comprising a wellbore and a wellhead, a subsea well isolation device installed on the wellhead, and a fluid level monitoring device and maintaining a constant fluid level within the wellbore.
  • Figure 1 is an illustration of a fluid level monitoring system in accordance with certain embodiments of the present disclosure.
  • Figure 2 is an illustration of a fluid level monitoring system in accordance with certain embodiments of the present disclosure.
  • Figure 3 is an illustration of a fluid level monitoring system in accordance with certain embodiments of the present disclosure.
  • the present disclosure relates generally to methods of measuring flows into and out of subsea wells. More specifically, in certain embodiments, the present disclosure relates to non-obtrusive methods of measuring flows into and out of subsea wells and associated systems.
  • the present disclosure provides a system that is capable of monitoring the fluid level in a subsea well during well service operations when in a riserless operational mode.
  • the methods and systems described herein may provide a system with the capability to monitor subsea wellbore fluid level and the condition of the well barriers required to maintain well control in riserless systems.
  • the methods and systems described herein may provide an early warning in order to implement secondary well control measures in the event of a failure of a primary well barrier in riserless systems.
  • fluid level monitoring system 1000 may comprise subsea well 1100 and subsea well isolation device 1200.
  • subsea well 1100 may comprise any type of subsea well.
  • subsea well 1100 may be in a riserless operation mode.
  • riserless operation mode refers to a mode where operations are conducted directly through seawater on a subsea well without the use of a riser conduit to the surface operation unit.
  • subsea well isolation device 1200 may be installed on wellhead 1110 of subsea well 1100.
  • subsea well isolation device 1200 may be used to provide well control and fluid management to subsea well 1100. Examples of suitable subsea well isolation devices are described in PCT/US2014/058786, the entirety of which is hereby incorporation by reference.
  • subsea well 1100 may be undergoing a well service operation. In certain embodiments, subsea well 1100 may be undergoing a riserless operation. Examples of well service operations include, wireline well intervention, coiled tubing well intervention, jointed pipe well intervention, and completion tubing installation or replacement.
  • fluid level monitoring system 1000 may further comprise fluid level monitoring device 1300, wellhead remote visual monitoring device 1400, constant level subsea pump system 1500, umbilical flow conduit 1600, subsea control system umbilical 1800, subsea control module 1520, and surface operating unit 1700.
  • submersible electric motor 1510 may power constant level subsea pump system 1500.
  • fluid level monitoring device 1300 may comprise a mud-line wellbore differential pressure monitoring device installed at subsea well isolation device 1200.
  • the mud-line wellbore pressure monitoring device may comprise one or more pressure gauges 1900.
  • the one or more pressure gauges 1900 may be located in subsea well isolation device 1200.
  • an electrical connection may connect pressure gauge 1900 to subsea control system umbilical 1800.
  • wellhead remote visual monitoring device 1400 may be installed at wellhead 1110.
  • wellhead remote visual monitoring device 1400 may comprise a subsea video camera with electrical connection to a control system that allows for viewing the video on the topside equipment.
  • the video will monitor the height of the well fluid by using concentric circular grooves on a funnel.
  • umbilical flow conduit 1600 may connect subsea well 1100 to surface operating unit 1700.
  • the umbilical flow conduit 1600 may be a kill line.
  • umbilical flow conduit 1600 may be reeled tubing or drill pipe.
  • umbilical flow conduit 1600 may provide fluid communication from surface operating unit 1700 to subsea well 1100.
  • fluid level monitoring system 1000 may further comprise logic control software capable of interpreting data streams from fluid level monitoring device 1300, constant level subsea pump system 1500, and one or more pressure gauges 1900.
  • pressure gauges 1900 may be reliant on pressure gradient differential between the completion fluid subsea well 1100 and the seawater.
  • the differential pressure may be used to measure the height of the fluid column inside the isolation device.
  • the pressure gauges 1900 may measure the differential pressure between ambient seawater and the fluid column above the location of the one or more pressure gauges 1900 in the subsea well isolation device 1200. Normally the fluid inside subsea well isolation device 1200 has a greater density than seawater.
  • the one or more pressure gauges 1900 may record an increase in differential pressure. Conversely when the fluid level in the isolation device decreases (lowers) the one or more pressure gauges 1900 may record a decrease in differential pressure.
  • constant level subsea pump system 1500 may operate to either lower or raise the fluid level according to the software in the subsea control module 1520.
  • Wellhead remote visual monitoring device 1400 may be used to confirm the fluid column height.
  • the present disclosure provides a method of maintaining a constant fluid level within a wellbore comprising: providing a fluid level monitoring system comprising a subsea well comprising a wellbore and a wellhead, a subsea well isolation device installed on the wellhead, and a fluid level monitoring device and maintaining a constant fluid level within the wellbore.
  • the fluid level monitoring system may comprise any fluid level monitoring system described above with respect to fluid level monitoring system 1000.
  • the fluid level monitoring system may measure the fluid level in the wellbore by measuring a pressure difference between seawater and the fluid in the well.
  • a fluid level monitoring device may be used to measure the pressure difference between seawater and the fluid in the well.
  • the fluid level monitoring device may comprise any fluid level monitoring device described above with respect to fluid level monitoring device 1300.
  • the measured pressure difference may be used to determine a motor speed and direction of a pump sufficient to maintain a constant fluid level within the wellbore.
  • a remove visual monitoring device may be used to confirm that the fluid level within the well is maintained at a constant level.
  • fluid level monitoring system 2000 may comprise subsea well 2100 and a subsea well isolation device 2200.
  • subsea well 2100 may comprise any subsea well discussed above with respect to subsea well 1100.
  • a subsea well isolation device 2200 may be installed on a subsea wellhead 2110 of subsea well 2100.
  • subsea well isolation device 2200 may comprise any subsea isolation device discussed above with respect to subsea isolation device 1200.
  • fluid level monitoring system 2000 may further comprise fluid level monitoring device 2300, wellhead remote visual monitoring device 2400, constant level subsea pump system 2500, umbilical flow conduit 2600, subsea control module 2520, and surface operating unit 2700.
  • submersible electric motor 2510 may power constant level subsea pump system 2500.
  • fluid level monitoring device 2300 may comprise a mud-line wellbore pressure monitoring device installed at subsea well isolation device 2200. In certain embodiments, fluid level monitoring device 2300 may comprise any combination of features discussed above with respect to fluid level monitoring device 1300.
  • wellhead remote visual monitoring device 2400 may be installed at wellhead 2110.
  • wellhead remote visual monitoring device 2400 may comprise any combination of features discussed above with respect to wellhead remote visual monitoring device 1400.
  • umbilical flow conduit 2600 may connect subsea well 2100 to surface operating unit 2700.
  • the umbilical flow conduit 2600 may comprise any combination of features discussed above with respect to umbilical flow conduit 1600.
  • umbilical flow conduit 2600 may provide fluid communication from surface operating unit 2700 to subsea well 2100.
  • fluid level monitoring system 2000 may further comprise logic control software capable of interpreting data streams from fluid level monitoring device 2300, constant level subsea pump system 2500, and pressure gauges 2900.
  • the differential pressure between pressure gauges 2900 may be used to measure the height of the fluid column inside the isolation device.
  • the constant level subsea pump system 2500 may operate to either lower or raise the fluid level according to the software in the subsea control module 2520.
  • Wellhead remote visual monitoring device 2400 may be used to confirm the fluid column height.
  • the present disclosure provides a method of maintaining a constant fluid level within a wellbore comprising: providing a fluid level monitoring system comprising a subsea well comprising a wellbore and a wellhead, a subsea well isolation device installed on the wellhead, and a fluid level monitoring device and maintaining a constant fluid level within the wellbore.
  • the fluid level monitoring system may comprise any fluid level monitoring system described above with respect to fluid level monitoring system 2000.
  • the fluid level monitoring system may measure the fluid level in the wellbore by measuring the pressure difference between the one or more pressure gauges.
  • a fluid level monitoring device may be used to measure pressure difference between the one or more pressure gauges.
  • the fluid level monitoring device may comprise any fluid level monitoring device described above with respect to fluid level monitoring device 2300.
  • the measured pressure difference may be used to determine a motor speed and direction of a pump sufficient to maintain a constant fluid level within the wellbore.
  • a remove visual monitoring device may be used to confirm that the fluid level within the well is maintained at a constant level.
  • fluid level monitoring system 3000 may comprise subsea well 3100 and a subsea well isolation device 3200.
  • subsea well 3100 may comprise any subsea well discussed above with respect to subsea well 1100 and/or subsea well 2100.
  • a subsea well isolation device 3200 may be installed on a subsea wellhead 3110 of subsea well 3100.
  • subsea well isolation device 3200 may comprise any subsea isolation device discussed above with respect to subsea isolation device 1200 and/or subsea isolation device 2200.
  • fluid level monitoring system 3000 may further comprise fluid level monitoring device 3300, wellhead remote visual monitoring device 3400, constant level pump system 3500, umbilical flow conduit 3600, subsea control module 3520, control umbilical 3800, and surface operating unit 3700.
  • submersible electric motor 3510 may power constant level subsea pump system 3500.
  • fluid level monitoring device 3300 may be used to monitor the flow inside the isolation device 3200 or well 3100.
  • fluid level monitoring device 3300 may comprise one or more resistance temperature detectors.
  • fluid level monitoring device 3300 may comprise temperature source 3311 and temperature sensor 3312.
  • temperature sensor 3312 may be an insertion flow sensor commercially available from INTEK.
  • temperature source 3311 and/or temperature sensor 3312 may be optical fibers such as optical fibers available from Smart Fibres.
  • fluid level monitoring system 3000 may monitor the fluid level by measuring an induced temperature variation in the wellbore fluid at the fluid monitoring device 3300.
  • temperature source 3311 may induce a temperature variation in the wellbore that is detected by temperature monitor 3312. Data from the detected temperature variation may then be transferred to the surface where computer software may interpret the data to determine the flow in the wellbore.
  • Wellhead remote visual monitoring device 3400 may be used to confirm the fluid column height.
  • the present disclosure provides a method of maintaining a constant fluid level within a wellbore comprising: providing a fluid level monitoring system comprising a subsea well comprising a wellbore and a wellhead, a subsea well isolation device installed on the wellhead, and a fluid level monitoring device and maintaining a constant fluid level within the wellbore.
  • the fluid level monitoring system may comprise any fluid level monitoring system described above with respect to fluid level monitoring system 3000.
  • the fluid level monitoring system may measure the fluid level in the wellbore by inducing a temperature variation in the wellbore.
  • a fluid level monitoring device may be used to measure the fluid level in the wellbore by inducing a temperature variation in the wellbore.
  • the fluid level monitoring device may comprise any fluid level monitoring device described above with respect to fluid level monitoring device 3300.
  • the measured induced temperature variation in the wellbore may be used to determine a motor speed and direction of a pump sufficient to maintain a constant fluid level within the wellbore.
  • a remove visual monitoring device may be used to confirm that the fluid level within the well is maintained at a constant level.

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  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Measuring Fluid Pressure (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Hydraulic Turbines (AREA)

Abstract

Cette invention concerne un système de surveillance de niveau de fluide comprenant : un puits sous-marin comprenant un trou de forage et une tête de puits; un dispositif d'isolement de puits sous-marin installé sur la tête de puits; et un dispositif de surveillance de niveau de fluide et des procédés associés.
PCT/US2016/020070 2015-03-02 2016-02-29 Procédé non intrusif de mesure d'écoulements entrants et sortants d'un puits sous-marin et systèmes associés Ceased WO2016140911A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US15/554,513 US20180073345A1 (en) 2015-03-02 2016-02-29 Non-obtrusive methods of measuring flows into and out of a subsea well and associated systems
BR112017018717A BR112017018717A2 (pt) 2015-03-02 2016-02-29 métodos não intrusivos para medir fluxos para dentro e para fora de um poço submarino e sistemas associados

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562127134P 2015-03-02 2015-03-02
US62/127,134 2015-03-02

Publications (1)

Publication Number Publication Date
WO2016140911A1 true WO2016140911A1 (fr) 2016-09-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2016/020070 Ceased WO2016140911A1 (fr) 2015-03-02 2016-02-29 Procédé non intrusif de mesure d'écoulements entrants et sortants d'un puits sous-marin et systèmes associés

Country Status (3)

Country Link
US (1) US20180073345A1 (fr)
BR (1) BR112017018717A2 (fr)
WO (1) WO2016140911A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110593817B (zh) * 2019-10-12 2020-08-04 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 一种井口作业可视化装置及方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7438135B2 (en) 2003-08-08 2008-10-21 Woodside Energy Ltd. Method of suspending, completing and working over a well
WO2011058031A2 (fr) * 2009-11-10 2011-05-19 Ocean Riser Systems As Système et procédé pour le forage d'un puits sous-marin
WO2012015315A1 (fr) * 2010-07-30 2012-02-02 Ocean Riser Systems As Système de forage sans colonne montante et sans pollution
US20140174751A1 (en) * 2011-08-29 2014-06-26 Mario R. Lugo System and Method for High Speed Hydraulic Actuation
WO2014155126A2 (fr) * 2013-03-27 2014-10-02 Ikm Cleandrill As Procédé et appareil pour obturateur de puits sous-marin et opérations d'abandon

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7438135B2 (en) 2003-08-08 2008-10-21 Woodside Energy Ltd. Method of suspending, completing and working over a well
WO2011058031A2 (fr) * 2009-11-10 2011-05-19 Ocean Riser Systems As Système et procédé pour le forage d'un puits sous-marin
WO2012015315A1 (fr) * 2010-07-30 2012-02-02 Ocean Riser Systems As Système de forage sans colonne montante et sans pollution
US20140174751A1 (en) * 2011-08-29 2014-06-26 Mario R. Lugo System and Method for High Speed Hydraulic Actuation
WO2014155126A2 (fr) * 2013-03-27 2014-10-02 Ikm Cleandrill As Procédé et appareil pour obturateur de puits sous-marin et opérations d'abandon

Also Published As

Publication number Publication date
US20180073345A1 (en) 2018-03-15
BR112017018717A2 (pt) 2018-04-17

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