WO2018234551A1 - Démantèlement de canalisation d'infrastructure de puits de pétrole - Google Patents

Démantèlement de canalisation d'infrastructure de puits de pétrole Download PDF

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Publication number
WO2018234551A1
WO2018234551A1 PCT/EP2018/066777 EP2018066777W WO2018234551A1 WO 2018234551 A1 WO2018234551 A1 WO 2018234551A1 EP 2018066777 W EP2018066777 W EP 2018066777W WO 2018234551 A1 WO2018234551 A1 WO 2018234551A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
cleaning
vessel
equipment
winding
Prior art date
Application number
PCT/EP2018/066777
Other languages
English (en)
Inventor
Niels Peter Elmbo
Jens Klit THOMSEN
Original Assignee
Maersk Supply Service A/S
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 Maersk Supply Service A/S filed Critical Maersk Supply Service A/S
Publication of WO2018234551A1 publication Critical patent/WO2018234551A1/fr

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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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0007—Equipment or details not covered by groups E21B15/00 - E21B40/00 for underwater installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/12—Laying or reclaiming pipes on or under water
    • F16L1/16—Laying or reclaiming pipes on or under water on the bottom
    • F16L1/166—Reclaiming pipes

Definitions

  • the present invention relates to the area of infrastructure of subsea oil wells. More particularly the invention relates to the area of decommissioning existing oil wells, when the production from the oil well is terminated.
  • Oil well piping may include, without limiting the scope of the sought protection, riser piping and flowlines.
  • Risers and flowlines are normally configured subsea in order to connect subsea modules and well-structures for production of oil and gas and allow for movements of an offshore drilling- or production platform relative to a subsea structure in both a horizontal and a vertical direction, for example to facilitate drilling and well maintenance operations to be performed from the platform and to accommodate the effects of ocean currents, wind and waves on both the risers, flowlines and platform.
  • the normal methodology involves the use of a ship to recover to surface, store, handle and process the risers for disposal.
  • the prior art process involves the following steps: Cutting off the risers from a subsea structure: remove the content of hydrocarbons from the risers by flushing with detergent liquids and replacing with no toxic or polluting liquids; recovering the riser/flowlines onto the vessel on surface while cleaning the outer surface of the riser/flowline and cutting up the riser into parts of typically 12 meters.
  • the method of cutting into 12 meter pieces is largely time-consuming and weather restricted whereas the invention is much less weather sensitive and more safe for personnel
  • the process requires frequent return of the vessel to shore to unload the load of recovered piping. As the operation of the vessels is costly there is a need for reducing the need for on-shore unloading, i.e. reducing the frequency of returning to shore.
  • the object of the present invention is to therefore provide for a method for increasing the efficiency and safety for personnel in retrieving the riser and flowline pipes.
  • the objective of the invention is achieved through a method for recovering a pipe from a subsea oil well by use of a vessel carrying decommissioning equipment, the method comprising winding the pipe onto a carrier while at the same time moving the pipe in direction essentially perpendicular to the winding direction.
  • the providing of a spooling device entails a firm wrap of pipe onto the drum.
  • the winding of pipe done such that the winded pipe follows a pattern which is similar to thread turns.
  • the coiled pipe is preferably arranged on the drum such that the pipe in the individual layers is lying with the individual turns essentially parallel and such that the windings are in mutual contact.
  • the pipe is cleaned for reminisces from oil production before the actual winding takes place. By cleaning the pipe prior to the winding, the risk of contaminated contents leaking to the seabed from the bottom of the pipe is minimized or even eliminated.
  • the pipe is prepared for winding by both ends being closed with plug-like parts.
  • the supplying of ends with plug-like closures entails a simpler pick up of the pipe from the seabed as you can simply attach pick up means - for example a wire - to one of the plug-like ends of the pipe.
  • the plug-like closures are mutually adapted to the pick-up means.
  • the method comprising the step of longitudinally flattening the pipe to provide at least one single layer of pipe material.
  • the objective of the present invention is achieved through a vessel for performing the method according to the invention, the vessel comprising spooling equipment for winding the pipe as well as means for moving the pipe in a direction essentially perpendicular to the spooling direction.
  • the spooling equipment or parts thereof is adapted for performing a transverse movement relative to the movement of the pipe.
  • drive means for performing a movement of the pipe in a direction perpendicular to the winding direction are provided, and further comprising means for manual operation of the drive means or a control system for automatic operation dependent on winding speed and dimensions of the pipe to be wound.
  • first cleaning equipment is provided and where optionally inspection equipment is provided for controlling the pipe cleaning after the pipe, and where further optionally second cleaning equipment is provided for cleaning in case the inspection equipment reveals the need for cleaning.
  • equipment for flattening the pipe is provided before or after cleaning equipment.
  • the vessel further comprises a fluid container located beneath the drum and being adapted for collecting or containment of any material spilled from the retrieved pipe.
  • the objective is achieved through a set of vessels comprising a first vessel according to any of the preceding claims and further comprising a second vessel for lifting a remote end of a pipe to be wound onto the first vessel.
  • the second vessel comprises a container for collecting or containment of any spilled material from the remote end of the pipe to be retrieved.
  • FIG. 1 shows a schematic top view of a vessel according to the invention
  • FIG. 2 shows a top view of a drum arrangement tougher with associated spooling devices
  • FIG. 3 shows section AA and section B-B in fig. 2;
  • FIG. 4 shows a perspective view of a vessel according the invention
  • FIG. 5 shows a perspective view of a further vessel according to the invention
  • FIG. 6 is a picture which shows - for understanding of the prior art - how a pipe is conventionally cut. Description of an embodiment
  • a vessel 1 appears, the vessel comprising equipment for winding of oil well piping.
  • the vessel has a bow 2 and a stern 3.
  • the pipe retrieval equipment comprises two rollers 4 and 4 ' and a drum 5.
  • a flowline 6 is to be winded on the drum 5.
  • the drum 5 is not shown such that individual threads of winded pipe/flowline 6 can be seen.
  • the drum stores the pipe and typically includes an electric driven motor to rotate the drum, however, the motor does not need to be driven by electricity but can be driven by any kind of energy known to the skilled person, e.g. hydraulics.
  • the invention includes the step of using a spooling device which travels back and forth longitudinally along the drum during spooling.
  • the spooling device 4, 4 ' comprises two rollers which are traveling on a rail 7.
  • FIG. 2 shows a more detailed drawing of a drum arrangement according to an embodiment of the invention.
  • Fig. 2 shows a double drum
  • the spooling device comprises two rollers 4 and 4 ' which are seen in the right side of the figure.
  • the two rollers 4 and 4' are capable of moving back and forth from right to left as indicated by arrow 21 and this movement is performed while the pipe 6, 6' is held between the rollers.
  • the rollers can move independently and remote controlled from the vessels bridge console. Normally the speed of the rollers is adapted such that the pipes are placed helically in every layer. Due to the direction of movement from layer to layer changing between right-hand and left-hand, the pipes cross and locate themselves within the gap of the layer underneath. However the speed may be adapted for other ways of winding known to the skilled person.
  • Movement of the rollers is in the shown embodiment achieved by use of a hydraulic cylinder 23 connected to a wire and pulley system.
  • the pulley 20 is situated on the left side of the hydraulic cylinder 23 and it moves together with the hydraulic cylinder 23 (from left to right or right to left) whenever the hydraulic cylinder 23 expand or retract.
  • the pulley 23 is stationary.
  • a wire 22, which runs on left side of pulley 22 and right side of pulley 20 connects the two rollers 4, 4 ' with the hydraulic cylinder. Normally a spring (not shown) forces the two rollers 4, 4 ' towards the right side of the figure.
  • section B-B this wire, pulley and hydraulic cylinder arrangement is very similar to the construction shown in section A-A and it also comprises a hydraulic cylinder 23 ' which is equipped with a pulley 20 ' and also connected to two rollers 4 ' and 4 " via a wire 22 ' .
  • this construction has two stationary pulleys 24 and 24 " ' .
  • Fig. 3 shows two pipes 6 and 6 ' .
  • the arrangement comprising hydraulic, wire and trusses is an embodiment of the invention, because the controlled movement of the two rollers can of course be achieved by other methods well known to those skilled in the art.
  • the pipe will contain a large amount of residue from the oil well, including naturally occurring radioactive materials (NORM) that may need to be removed.
  • NEM radioactive materials
  • an inspection device (not shown) is provided.
  • the inspection device may be provided before or after the rollers 4, 4 ' , 4 " , 4 " ' . In case any NORM materials are present it may be desirable to have cleaning equipment placed after the inspection device and possible an additional inspection device.
  • a vessel comprising a drum/pipe carrier 1 .
  • the equipment Prior to the drum/pipe carrier, which may be a wheel, the equipment comprises a device 4, 4 ' for performing a movement of the pipe in a direction perpendicular to the winding direction. This movement is indicated by two arrows in fig. 4.
  • the device comprises a control unit capable of controlling the speed
  • Fig. 6 is a picture which shows - for understanding of the prior art - how a pipe 52 is conventionally cut into pieces of 12 meters with a cutting device 50 equipped with a cutting wire 51 . Below the cutting device sees a collection box 53. The collection box 53 collects the residues from oil production that flow out of the pipe pieces as they are cut. Although the pipe pieces 52 are relatively small, they have a considerable weight each and this naturally results in a similar risk to the people on the ship's deck. Thus, the prior art involves much manual work not only in connection with the cutting operation but also in connection with storage and unloading of the pipe pieces.
  • a riser is a tubular conduit that extends from a subsea structure to another subsea structure or to a production platform, for the purpose of conveying hydrocarbons.
  • the subsea structure may be a "Christmas tree", riser base, manifold, or any other structure used in offshore hydrocarbon production.
  • Offshore hydrocarbon production platforms may be fixed to the seabed or floating Depending on the water depth.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne un procédé de récupération d'un tuyau (6) à partir d'un puits de pétrole sous-marin au moyen d'un navire (1) portant un équipement de démantèlement, le procédé comprenant l'enroulement du tuyau sur un tambour (11) tout en déplaçant le tuyau dans une direction essentiellement perpendiculaire à la direction d'enroulement.
PCT/EP2018/066777 2017-06-23 2018-06-22 Démantèlement de canalisation d'infrastructure de puits de pétrole WO2018234551A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201770498 2017-06-23
DKPA201770498 2017-06-23

Publications (1)

Publication Number Publication Date
WO2018234551A1 true WO2018234551A1 (fr) 2018-12-27

Family

ID=62874841

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/066777 WO2018234551A1 (fr) 2017-06-23 2018-06-22 Démantèlement de canalisation d'infrastructure de puits de pétrole

Country Status (1)

Country Link
WO (1) WO2018234551A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20200254A1 (en) * 2020-03-03 2021-09-06 Archer Oiltools As A petroleum well casing or tubing pipe recovery system and a method for pipe recovery
NO20210015A1 (en) * 2021-01-06 2021-09-06 Archer Oiltools As Pipe recovery system and pipe recovery method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994006678A1 (fr) * 1992-09-18 1994-03-31 Subsea Offshore Limited Procede et appareil de pose/recuperation de conduits flexibles dans un fond marin
GB2490171A (en) * 2011-04-26 2012-10-24 Technip France Recovery method
WO2015040374A1 (fr) * 2013-09-18 2015-03-26 Mackinnon Marine Limited Procédés de pose de canalisations améliorés

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994006678A1 (fr) * 1992-09-18 1994-03-31 Subsea Offshore Limited Procede et appareil de pose/recuperation de conduits flexibles dans un fond marin
GB2490171A (en) * 2011-04-26 2012-10-24 Technip France Recovery method
WO2015040374A1 (fr) * 2013-09-18 2015-03-26 Mackinnon Marine Limited Procédés de pose de canalisations améliorés

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MICHAEL O'DONNELL: "Decommissioning of flexible flowlines using reeled pipelay vessels", 16 February 2010 (2010-02-16), pages 1 - 21, XP055512545, Retrieved from the Internet <URL:https://www.subseauk.com/documents/michael%20odonnelly.pdf> [retrieved on 20181004] *
XAVIER HERAUDEAU: "How to safely plan and conduct riser replacement operations", 26 November 2013 (2013-11-26), pages 1 - 25, XP055512554, Retrieved from the Internet <URL:http://www.ptil.no/getfile.php/1325092/PDF/Seminar%202013/Temadag%20om%20fleksible%20stigerøyr/9%20-%20Subsea%207,%20How%20to%20safely%20plan%20and%20conduct%20riser%20replacement%20operations.pdf> [retrieved on 20181004] *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20200254A1 (en) * 2020-03-03 2021-09-06 Archer Oiltools As A petroleum well casing or tubing pipe recovery system and a method for pipe recovery
NO346431B1 (en) * 2020-03-03 2022-08-08 Archer Oiltools As A petroleum well casing or tubing pipe recovery system and a method for pipe recovery
NO20210015A1 (en) * 2021-01-06 2021-09-06 Archer Oiltools As Pipe recovery system and pipe recovery method

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