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WO2009037591A2 - Système de colonne montante d'intervention sous-marine - Google Patents

Système de colonne montante d'intervention sous-marine Download PDF

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Publication number
WO2009037591A2
WO2009037591A2 PCT/IB2008/003483 IB2008003483W WO2009037591A2 WO 2009037591 A2 WO2009037591 A2 WO 2009037591A2 IB 2008003483 W IB2008003483 W IB 2008003483W WO 2009037591 A2 WO2009037591 A2 WO 2009037591A2
Authority
WO
WIPO (PCT)
Prior art keywords
riser
intervention system
component
lower riser
intervention
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/IB2008/003483
Other languages
English (en)
Other versions
WO2009037591A3 (fr
Inventor
David Barnes
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2009037591A2 publication Critical patent/WO2009037591A2/fr
Anticipated expiration legal-status Critical
Publication of WO2009037591A3 publication Critical patent/WO2009037591A3/fr
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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • E21B17/012—Risers with buoyancy elements
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • E21B17/015—Non-vertical risers, e.g. articulated or catenary-type
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
    • E21B19/004—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling supporting a riser from a drilling or production platform
    • 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
    • E21B41/04—Manipulators for underwater operations, e.g. temporarily connected to well heads

Definitions

  • the invention relates to a riser system for accessing and servicing sub-sea oil and gas wells and sub sea equipment installations.
  • the riser system may be used to access an existing well to carryout intervention operations or for interventions associated with other subsea installations and equipment such as subsea Xmas trees/well heads, manifolds, access points, pipelines, flowlines and umbilicals. Such access is required, for example, to take further measurements of the reservoir or to make various maintenance, inspection, and repair operations.
  • the invention provides a technique to enable subsea well, installation and flowline intervention using electric braided wireline, slick wireline, coiled tubing and numerous intervention tools required for such intervention.
  • This invention allows vessels and rigs to quickly and efficiently access subsea wells, installations and flowlines.
  • the dual riser system will consist of two main elements, a lower and a surface riser systems.
  • the lower riser system will be connected to the well, equipment installation, pipes, other risers or flow line at the seabed level.
  • buoyancy will be fitted to preferably maintain the lower riser system in tension and thus in a near vertical orientation at some intermediate depth below the splash zone of the sea, typically from 100m to about 300m, and with due consideration for depth allowance required to permit the surface riser system to absorb the vessel motion without damaging or impeding the operation of the intervention systems.
  • riser tube of un- jointed flexible unbonded composite pipe which could be positively buoyant and will preferably be complex bore, single bore steel, titanium or other composite material riser could also be utilized.
  • the internal bores of the riser systems will be made from composites or extrusions and will maintain position within the riser systems using spacers allowing interventions systems such as coiled tubing, wireline, slickline to move efficiently inside the riser system.
  • the buoyancy provided on the lower riser system will incorporate a remotely operated vehicle (ROV) operable connector system that will allow the surface riser system to connect to the buoy and subsequently to the lower riser system. To assist in this task the buoy will be fitted with a ROV alignment system to ensure efficient connection process.
  • ROV remotely operated vehicle
  • the surface riser system will also comprise preferably of riser tube fabricated from flexible unbonded continuous un-jointed composite pipe which would be positively buoyant and will preferably be complex bore. Single bore steel, titanium or other composite material riser could also be utilized.
  • the bores in the riser system will allow for the deployment and free movement of fluids, coiled tubing, wireline or slickline within the riser system.
  • the primary purpose of the surface riser system will be to absorb vessel motion without damaging or impeding the operation of the intervention systems.
  • the surface riser system will be deployed with additional over length to create a sag bend to absorb vessel motion and thus avoid the high cost to have heave compensation incorporated in the deployment of surface intervention hardware.
  • Access to the surface riser system will be vertical.
  • the surface riser system can be disconnected from the riser in any abandonment situation e.g. for reasons of weather, drive off.
  • the surface riser system preferably will also incorporate a disconnect system which will include sealing, disconnecting and cutting capability.
  • FIG. 1 is an elevation view of a two-component riser system of the invention connected in a typical well intervention configuration
  • FIG. 2 is a is an elevation view of a two-component riser system of the invention with an alternate intervention system for flow line intervention;
  • FIG. 3 is a is an elevation view of a two-component riser system of the invention intervening on a flow line or other subsea equipment installation;
  • FIG. 4 is a cross-section of a two-component riser system
  • FIG. 5 is a cross-section of a riser system with complex bore
  • FIG. 6 is a cross-section of a riser system with complex bore and external conduit.
  • the invention allows for connection to any number of subsea installations to include Xmas trees, wellheads, manifolds, access points, pipelines, flow lines, umbilicals and resins to a subsea intervention vessel, rig or other type of craft.
  • the invention enables subsea well, installation, pipeline and flow line invention utilizing a variety of equipment including, but not limited to electric braided wire line, slick electric wire line, coiled tubing and other intervention tools.
  • the intervention tools may be remotely powered, subpowered or unpowered.
  • the riser system of the invention allows vessels and rigs to quickly and efficiently access subsea wells, installations and flow lines.
  • Typical vessels that can deploy the system include open water light weight intervention vessels, light weight construction vessels, large construction and intervention vessels and rigs.
  • the light nature of un-jointed flexible unbonded composite pipe enables the use of light weight vessels.
  • the riser system can be deployed from a number of locations on the vessel to include the stern, side or through a moon pool.
  • the riser system of the invention is deployed from a surface vessel 101 to access a subsea wellhead by the connection of the lower riser component 103 and the upper riser component 104.
  • the riser system may be deployed through a moon pool
  • the 105 located in the center of the vessel 101 or it may be deployed from the stern or other locations on the vessel.
  • the lower riser component 103 is connected to the well head using standard connection methods. As shown in FIG. 1, the lower component 103 is connected to the wellhead
  • BOP Blow Out Preventer
  • Xmas tree 108 A coiled tubing BOP 109, a subsea lubricator 110 and an emergency disconnect system 111 complete the connection.
  • a pressure activated sealing system (not shown) may also be used at the lower end of the lower riser component.
  • the lower riser component 103 is connected at its upper end to a Buoyancy element 112 which maintains tension on the lower component 103, keeping it in a vertical orientation.
  • the buoyance element 112 is attached to the lower element such that it is below the splash zone of the sea and at a sufficient distance from the surface to permit the upper riser component 104 to absorb the vessel motion without damaging or impeding the operation of the system.
  • the lower riser component 103 may be a single or complex bore conduit fabricated from steel, titanium or composite materials.
  • the lower riser is fabricated from a flexible un-jointed unbonded composite material such as that described in U.S. Patent 6,491,779, the teachings of which are hereby incorporated by reference.
  • the upper riser component 104 is connected to the lower component 103 by means of a riser disconnect package 113 and a swivel 114.
  • a second buoyance element 115 is connected to the upper riser component 104 to provide buoyancy to the upper riser component.
  • the second buoyance element helps define the desired curvature of the upper riser component and the desired shape to facilitate natural heave compensation.
  • a slip joint or motion compensating system may also be used to compensate for the motion of the surface vessel.
  • the upper riser component may comprise a pressure activated sealing system located at the lower end of the upper riser component.
  • the upper riser component is deployed such that there is excess length creating a sag band 116 allows the upper riser component to absorb the motion of the vessel.
  • the upper riser component should be flexible so that the upper component can bend but in the sag bend without adversely affecting the function of the riser assembly.
  • a variety of materials can be used to fabricate the upper riser component including steel, titanium, and composite materials.
  • the upper riser component is constructed of an un-jointed unbonded composite pipe such as that disclosed in U.S. Patent No. 6,491,779, the teachings of which are hereby incorporated by reference.
  • the riser is formed from a un-jointed continuous pipe.
  • connection of the lower riser component 103 to the wellhead 106 and the upper riser component are accomplished by means of a remotely operated vehicle (ROV) 117.
  • ROV remotely operated vehicle
  • the first buoyance element 112 is fitting a ROV alignment system to insure an efficient connection.
  • the upper riser component and the lower riser component may incorporate monitoring systems such as fiber optic monitoring systems.
  • the monitoring systems can be integral to the riser component or mounted externally.
  • the monitoring systems allow the user to monitor the riser system for shape, stress, fatigue, pressure and temperature.
  • the riser system can be either a single bore or a complex bore.
  • complex bore it is meant a riser having two or more bores within the riser system.
  • the bores may be of different sizes and used for different purposes such as fluid conduit, fluid return conduit, umbilical conduit, and tool and conveyance system conduit.
  • the upper and lower riser components may be lined or unlined.
  • the riser system can remain attached to the subsea well installation or flow line. This allows rapid return access should suspension or disconnection be required.
  • the flexible nature of the unjointed riser system permits efficient deployment of the riser system and facilitates movement and shape adjustment enabling easy tool or assembly deployment.
  • the vertical nature of the lower riser component permits gravity assistance from tool for assembly deployment.
  • FIG. 2 Another embodiment of the invention is shown in FIG. 2.
  • the riser system is used to access a subsea flow line or pipeline 201.
  • the lower riser component 202 engages the pipeline 201 through a subsea manifold 203 or similar installation.
  • a BOP 204 is in place between the manifold 203 and the lower riser 202.
  • An emergency disconnect 205 optimal components such as a lubricator 206 and a coil tubing BOP and stripper 207 may also be deployed between the manifold 203 and the lower riser 202.
  • FIG. 3 shows an alternate embodiment where the riser system is again attached to a flow line or pipeline.
  • the lower riser 301 connects with a BOP 302 which in turn is connected to a pipeline elbow 303.
  • the elbow 303 engages a subsea connection tool system 304 which, in turn is connected to the pipeline 305.
  • an emergency disconnect system 306 is placed between the riser 301 and the BOP.
  • An optimal lubricator 307 and coiled tubing BOP 308 is also shown.
  • the bore of the riser can be a single bore or a complex bore with the bores serving different functions.
  • FIG. 4 is an illustration of a single bore riser of the invention.
  • the riser has a simple outer layer 401 and a second smaller layer 402.
  • an external conduit 403 is also provided.
  • the external conduit can be used in a variety of ways to include deployment of a fiber optic monitoring system like that discussed above.
  • FIG. 5 shows an example of a complex bore for an intervention riser system.
  • the riser has an outer layer 501 and one inner layer 502. Within the inner layer, there are separate conduits 502, 503 and 504. The system may also have further conduits.
  • the conduits comprise a conduit fitted for a control power or communications umbilical 503, a conduit for coiled tubing 504 and a conduit for wire line or slick line 505.
  • a variety of different conduits can be used with the riser.
  • the illustrative conduits are merely exemplary and do not emit the range of possible conduits.
  • FIG. 6 is a cross section of yet another embodiment of the invention.
  • a complex bore 601 has internal conduits 602, 603 and 604.
  • the riser system has an external conduit 605 fitted to the riser system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (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

La présente invention concerne un système à plusieurs éléments permettant de réaliser des interventions sous-marines. Le système comprend un élément de colonne montante inférieur qui est maintenu vertical par un élément flottant et un système de colonne montante supérieur. Le système de colonne montante supérieur est une conduite continue non articulée ayant une flexibilité suffisante pour absorber le mouvement du navire d'installation sans affecter le fonctionnement du système d'intervention.
PCT/IB2008/003483 2007-06-08 2008-06-02 Système de colonne montante d'intervention sous-marine Ceased WO2009037591A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/760,301 2007-06-08
US11/760,301 US20080302535A1 (en) 2007-06-08 2007-06-08 Subsea Intervention Riser System

Publications (2)

Publication Number Publication Date
WO2009037591A2 true WO2009037591A2 (fr) 2009-03-26
WO2009037591A3 WO2009037591A3 (fr) 2010-01-07

Family

ID=40094789

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/003483 Ceased WO2009037591A2 (fr) 2007-06-08 2008-06-02 Système de colonne montante d'intervention sous-marine

Country Status (2)

Country Link
US (1) US20080302535A1 (fr)
WO (1) WO2009037591A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014188165A3 (fr) * 2013-05-20 2015-07-23 Petroleo Brasilerio S.A - Petrobras Système hybride de transfert inverse

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WO2014188165A3 (fr) * 2013-05-20 2015-07-23 Petroleo Brasilerio S.A - Petrobras Système hybride de transfert inverse

Also Published As

Publication number Publication date
US20080302535A1 (en) 2008-12-11
WO2009037591A3 (fr) 2010-01-07

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