WO2017123386A1 - Module de commande sous-marin télécommandé - Google Patents

Module de commande sous-marin télécommandé Download PDF

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Publication number
WO2017123386A1
WO2017123386A1 PCT/US2016/067534 US2016067534W WO2017123386A1 WO 2017123386 A1 WO2017123386 A1 WO 2017123386A1 US 2016067534 W US2016067534 W US 2016067534W WO 2017123386 A1 WO2017123386 A1 WO 2017123386A1
Authority
WO
WIPO (PCT)
Prior art keywords
subsea
roscm
equipment
subsea equipment
power
Prior art date
Application number
PCT/US2016/067534
Other languages
English (en)
Inventor
Paul M. SOMMERFIELD
Mohan G. Kulkarni
Kevin T. CORBETT
Original Assignee
Exxonmobil Upstream Research Company
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 Exxonmobil Upstream Research Company filed Critical Exxonmobil Upstream Research Company
Publication of WO2017123386A1 publication Critical patent/WO2017123386A1/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
    • 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
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
    • E21B33/0355—Control systems, e.g. hydraulic, pneumatic, electric, acoustic, for submerged well heads
    • 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
    • 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
    • E21B43/017—Production satellite stations, i.e. underwater installations comprising a plurality of satellite well heads connected to a central station

Definitions

  • SCM subsea control module
  • failure of an SCM can include loss of hydraulic power, electrical power, communications, any combination thereof, or other fault which would render the SCM unable to control the production or processing equipment to which it is connected.
  • one or more spare SCMs are stored onshore and when an operating SCM fails, one of the spare SCMs and associated running tools are mobilized onto a vessel, transited offshore, and the failed SCM is replaced by a spare SCM using standard installation practices.
  • the replacement process may be relatively lengthy, and depending upon several factors, e.g., the location of the spare SCM, the availability of personnel, vessels, and/or other resources, etc., restoration of the failed equipment can take weeks or longer.
  • Replacing failed SCMs can be further complicated for locations where water surface access is restricted, e.g., due to ice sheets or floes, icebergs, harsh weather, or other restrictive metocean conditions. Additionally, access limitations or other restrictions can limit the ability of a conventional inspection, maintenance, and repair (IMR) vessel to replace the SCM in a timely manner.
  • IMR inspection, maintenance, and repair
  • ROV Remotely Operated Vehicle
  • One embodiment includes a method of replacing a subsea control module (SCM) associated with a subsea equipment comprising identifying a condition indicating need for replacing the SCM, activating a remotely-operated subsea control module (ROSCM) located in a first location in a subsea field, maneuvering the ROSCM from the first location to a second location in the subsea field, wherein the ROSCM is self-propelled, connecting the ROSCM to a distribution system for the subsea equipment, and providing at least one of hydraulic power, electrical power, and communications to the subsea equipment.
  • SCM subsea control module
  • ROSCM remotely-operated subsea control module
  • ROSCM remotely-operated subsea control module
  • a ROSCM apparatus comprising a receiver configured to receive an operating instruction from a remote location, a propulsion mechanism configured to move the ROSCM from a first location in a subsea field to a second location in the subsea field, a subsea electronics module (SEM) configured to provide local control instructions for a subsea equipment, and an interface configured to provide at least one of hydraulic power, electrical power, and communications to the subsea equipment.
  • SEM subsea electronics module
  • Still another embodiment includes a subsea system comprising a subsea wellhead, a subsea equipment coupled to the subsea wellhead, a subsea control module (SCM) operatively coupled to the subsea equipment, a remotely -operated subsea control module (ROSCM) disposed at a first location in a subsea field, wherein the ROSCM comprises a receiver configured to receive an operating instruction from a remote location, a propulsion mechanism configured to move the ROSCM from the first location in the subsea field to a second location in the subsea field, and an interface configured to connect to at least one of a spare umbilical termination assembly (UTA) connection near the subsea equipment, a hydraulic distribution system associated with the subsea equipment, a power distribution system associated with the subsea equipment, and a communication distribution system associated with the subsea equipment.
  • UUA spare umbilical termination assembly
  • FIG. 1 is a perspective view of a Remotely-Operated Subsea Control Module (ROSCM) in a subsea field comprising a well-site or a plurality of well-sites.
  • ROSCM Remotely-Operated Subsea Control Module
  • FIG. 2 is a side view of a Remotely-Operated Subsea Control Module (ROSCM) in a subsea well-site.
  • ROSCM Remotely-Operated Subsea Control Module
  • FIG. 3 is a block diagram showing a method of replacing a subsea control module (SCM) associated with subsea equipment.
  • SCM subsea control module
  • FIG. 4 is a block diagram of a master control station (MCS) that may be used to perform any of the methods disclosed herein.
  • MCS master control station
  • FIG. 5 is a block diagram of a ROSCM according to the present disclosure.
  • FIG. 6 is a planar view of an interface of a ROSCM according to the present disclosure.
  • communication refers to the transfer of data for monitoring purposes, or for sending and receiving commands, or both.
  • controls link will preferably include a form of communication to and from the well-sites, and will preferably include “control power” for the well-sites, although local “control power” may be employed.
  • control operations may optionally also include providing electrical power, including low voltage for control equipment such as gauges and valves, and high power for operating subsea equipment as described above.
  • control power refers to sending hydraulic or electrical low power for the operations of gauges, valves, sensors, and other low power-consuming equipment. Hydraulics and electrical low power are both considered forms of "control power" for purposes of this disclosure.
  • high power refers to providing hydraulic or high electric power for electrical submersible pumps, multi-phase pumps, compressors, and other high power-consuming equipment.
  • the term "replace” or “replacing” with respect to certain equipment means to take the place of or serve as a substitute for, e.g., by replacing, superseding, overriding, or otherwise supplanting other equipment, depending on the context. Replacing may be temporary or permanent as would be evident to those of ordinary skill in the art.
  • the proposed technology combines remotely -operated vehicle (ROV) and subsea control module (SCM) technologies to restore electrical and hydraulic power to regain control of the disabled subsea equipment until a more permanent SCM replacement operation can be performed.
  • the technology may be referred to herein as the Remotely -Operated Subsea Control Module (ROSCM).
  • the ROSCM may be deployed when the subsea field or well-site is installed and may be wet stored until used.
  • FIG. 1 is a perspective view of a subsea system 100 having a ROSCM 102 deployed therein.
  • the subsea system 100 includes a host platform 150 coupled to and configured to service a plurality of subsea well-sites 110, 120 within a subsea field 140.
  • the host platform 150 may be configured to be re-locatable to a location generally above any of the subsea well- sites 110, 120.
  • the host platform ISO may be a semisubmersible platform, a towed vessel, a self-propelled vehicle, etc.
  • the host platform ISO may be a fixed platform.
  • the host platform ISO comprises an operations control system (not shown). The specific control operations may include communications.
  • Control operations may further include the injection of chemicals such as hydrate, paraffin, or wax inhibitors into flow lines.
  • Subsea equipment that is subject to control operations includes, but is not limited to, gauges, valves and/or chokes (not shown) associated with wellheads, e.g., trees, and respective flow-lines. It may also include pumps and other electrically or hydraulically actuated equipment.
  • the host platform ISO optionally includes a power delivery system (not shown) that delivers power from the host platform 150 to subsea equipment.
  • Embodiments with power delivery sy stems may include known power systems, such as fuel generators. For example, power may be generated by the combustion of fuel gas supplied via a fuel gas return line. Gas may be supplied via a subsea separator.
  • Liquid hydrocarbon fuel may be used during disconnections or when fuel gas is not available. Alternative embodiments may use wind power, solar power, tidal power, geothermal power, etc.
  • the host platform 150 may also include a control delivery system (not shown) located onboard the host platform 150 and configured to control subsea equipment.
  • the control delivery system may be any suitable control sy stem and may comprise a communication link, such a wired link or a wireless link.
  • Each well-site 110, 120 comprises various subsea equipment, e.g., trees 114, 124. It is understood that the trees 114, 124 of each well have valves for controlling or shutting off fluid flow from the wellbores. The trees 114, 124 and various components disposed thereon may be actuated by a subsea control module (SCM) (discussed further below) located on the trees 114, 124.
  • SCM subsea control module
  • Each well-site may include a manifold coupled to trees via well jumpers. As shown in FIG. 1, well-site 110 further comprises a manifold 115 coupled to trees 114 via well jumpers 116. Alternately or additionally, flying leads couple the manifold 115 and trees 114.
  • the subsea well-sites 110, 120 further comprise flowline and pipeline components 117, 127, e.g., flowline end terminations (FLETs) or pipeline end terminations (PLETs).
  • the manifold 115 is coupled to wellhead components 117 via jumpers 116.
  • Jumpers 126 connect wellhead components 127, control connection points 128, and/or trees 124 together.
  • Each well-site 110, 120 further comprises one or more controls connection points 118, 128, e.g., umbilical termination assemblies (UTAs), subsea distribution units (SDUs), etc.
  • Umbilical's 180, 184 extend from the host platform 150 to the controls connection points 118, 128. Flying leads may couple a manifold to the controls connection points, e.g., similar to the trees.
  • Production export lines 144, 146 may carry produced fluids to a gathering and processing facility.
  • a ROSCM 102 is depicted coupled to the controls connection points 118 via an input flying lead 170, e.g., a hydraulic, electrical, and/or communications input lead, and coupled to the tree 114 via an output flying lead 171.
  • Some embodiments may not require the input flying lead 170 and/or the output flying lead 171 as an alternate means of communication may be utilized, e.g., a wireless connection such as a radio frequency (R ) connection or using acoustic communications.
  • the ROSCM 102 may be neutrally buoyant and may contain motors and any other equipment necessary to maneuver from its storage location or "garage" 130 to the area of the impaired equipment.
  • buoyancy control mechanisms and structures may be suitably employed, including ballasting systems, air bladders, etc., and all such variations are considered within the scope of this disclosure.
  • Underwater vehicle propulsion design is well known and, consequently, techniques for maneuvering the ROSCM 102 may be accomplished in a variety of ways known to those of skill in the art within the scope of this disclosure.
  • the ROSCM 102 may comprise an internal battery driving a propeller-based propulsion system.
  • the input flying lead 170 may power a ROSCM 102 propulsion motor which may be a component of the propulsion mechanism.
  • Still other embodiments may use one or more thrusters, a sled-and-rail design, a tow-cable design, etc.
  • the garage may optionally be a wet-storage or a dry-storage location, and may be capable of charging a battery for the ROSCM 102, e.g., using power from a host facility or locally generated, for example, via hydrothermal power, tidal power, current power, etc., or any combination thereof.
  • the garage may be centrally located with respect to one or more well-sites, e.g., well-site 110, 120, in order to support the entire subsea field.
  • the ROSCM 102 may carry all the hydraulic hoses, electrical leads, fiber optic leads, or wireless equipment as necessary to provide electrical and hydraulic power and control to the subsea equipment.
  • Internal to the ROSCM 102 may be one or more subsea electronics modules (SEMs), and one or more channels of hydraulic controls components, e.g., manifolds, selector valves, directional control valves (DCVs), dump valve, etc., as necessary to restore electrical power, hydraulic power, communications, control, or any combination thereof.
  • SEMs subsea electronics modules
  • DCVs directional control valves
  • dump valve etc.
  • the ROSCM 102 may be connected upon initial field installation, or may have the ability to connect low and high pressure lines from its input interface to spare connection slots plumbed into the hydraulic distribution system to energize the hydraulic components within the ROSCM. This may be accomplished in a variety of ways, e.g., using individual hoses and couplers, subsea male/female stab-style ("hot stab") connections, or a small flying lead and stab plate or junction plate.
  • the ROSCM 102 may also connect to spare power and/or communication connection slots that are tied into the power and communication distribution system. This may be via separate electrical connectors, fiber optic connectors, wireless connection, or may be combined with the hydraulic lines into a single flying lead and stab plate.
  • the ROSCM 102 may include one or more subsea electronics modules (SEMs), and/or one or more channels of hydraulic controls components, e.g., manifolds, selector valves, directional control valves (DCVs), dump valve, etc., as necessary to restore functionality to the disabled subsea equipment.
  • SEMs subsea electronics modules
  • DCVs directional control valves
  • Some embodiments of the ROSCM 102 may include spare parts, replacement parts, etc., for installation into or onto the subsea equipment.
  • the ROSCM 102 is connected subsequent to initial field installation, e.g., as a replacement ROSCM 102 or as a retrofit item.
  • the ROSCM 102 may have the ability to connect its hydraulic, electrical, and/or fiber optic output leads on the output interface to the disabled equipment.
  • the ROSCM 102 may have an interface configured to be connected to the subsea equipment via individual lines, leads, and/or other connections, such as individual couplers or hot stab connection, and electrical and fiber optic connectors, a single flying lead and stab plate, wireless connections, etc. If the ROSCM interface is configured to be connected to the subsea equipment via wireless signals, e.g., for communicating with and/or transmitting electrical power to the equipment, only hydraulic leads may be needed from the ROSCM 102 to the subsea equipment, e.g., trees 114, 124, manifold 115, etc.
  • the ROSCM 102 may be connected to a master control station, e.g., an operations control system located on the host platform 150, via a production umbilical and associated distribution system, e.g., via umbilicals 180, 184, or some other suitable method, to provide remote operation capability for the subsea equipment to which it is connected.
  • a master control station e.g., an operations control system located on the host platform 150
  • a production umbilical and associated distribution system e.g., via umbilicals 180, 184, or some other suitable method
  • Various embodiments may alternately or additionally dispose the master control station on a layer of ice, on land, a vessel, a fixed structure, etc., and the system 100 may include more than one such control station.
  • the ROSCM 102 may execute any start-ups, operations, and emergency shut-downs (ESDs) required by the platform or subsea equipment.
  • ESDs emergency shut-downs
  • the ROSCM 102 may be
  • the ROSCM 102 may comprise one or more sensors and/or detection systems, e.g., pressure, temperature, salinity, depth, video, infrared, position, vibration, hydrophones, etc. These sensors may be used for maneuvering guidance, for equipment inspection operations, for diagnostic and/or troubleshooting operations, for remote monitoring/operation, for anomaly detection, etc. Such embodiments will be apparent to those of skill in the art and are considered within the scope of this disclosure.
  • FIG. 2 is a perspective view of a subsea system 200 having a ROSCM 202 deployed therein.
  • the components of FIG. 2 may be substantially the same as the corresponding components of FIG. 1 except as otherwise noted.
  • the subsea system 200 includes a tree 214 coupled to the wellhead 211.
  • the tree 214 may be actuated by an SCM 235.
  • the subsea system 200 further comprises a manifold 215 coupled to the tree 214 via flow line jumper 216. Alternately or additionally, a flying lead (not shown) may couple the manifold 215 and the tree 214
  • An input flying lead 270 couples the ROSCM 202 to a controls connection point (not shown), e.g., the controls connection points 118, 128 of FIG. 1.
  • An output flying lead 271 couples the ROSCM 202 to the distribution system 245 of the tree 214.
  • the distribution system 245 may include a hydraulic distribution system, a power distribution system, a communication distribution system, or any combinations thereof. Although the connections to the distribution system 245 are depicted on the side of tree 214, it is understood that such connections may be located at any suitable position, such as the top surface of the tree. Either/both of the flying leads 270, 271 may optionally comprise bundled or separate hoses disposing hydraulic fluid, electrical power, and/or fiber optic input leads. As discussed above, some embodiments may not require some or all of the communication links as wireless transmission is within the scope of this disclosure.
  • FIG. 5 is a block diagram of components of ROSCM 502.
  • ROSCM 502 has a receiver 512 configured to receive an operating instruction from a remote location and a transmitter/receiver 504 configured to transmit a wireless communication signal to the subsea equipment and receive a wireless health monitoring signal from the subsea equipment.
  • ROSCM 502 also includes a propulsion mechanism 513 configured to move the ROSCM 502 from a first location in a subsea field to a second location in the subsea field.
  • the propulsion mechanism 513 includes a propulsion motor 513'.
  • ROSCM 502 includes a SEM 508 configured to provide local control instructions for subsea equipment and an interface 506 configured to provide at least one of hydraulic power, electrical power, and communications to subsea equipment.
  • ROSCM 502 includes hydraulic components 570 which may include solenoids to operate valves.
  • the SEM 508 may include electrical components and communication components.
  • an input flying lead to ROSCM 502 may be used to provide hydraulic power, electrical power and communications to ROSCM 502 from another location.
  • FIG. 6 illustrates a planar view of interface 506 of the ROSCM 502 of FIG. 5.
  • Interface 506 includes connections 560 for providing hydraulic power using hydraulic components 570, connections 561 for providing electrical power via electrical components (not shown) within the SEM 508, and connections 562 for providing communications to subsea equipment via communication components (not shown) within the SEM 508.
  • ROSCM 502 includes a buoyancy control component 501 configured to periodically operate so as to place ROSCM 502 in a neutrally buoyant condition.
  • FIG. 3 is a block diagram showing a method of replacing a subsea control module (SCM) associated with a subsea equipment, e.g., a tree 214 of FIG. 2, using a ROSCM, e.g., the ROSCM 202 of FIG. 2.
  • the method may begin with identifying a condition indicating need for replacing the SCM, e.g., a failure of the SCM.
  • Some embodiments may utilize one or more continuous communication mechanisms to provide indication for the equipment status condition, such as a wired or wireless technical health monitoring sensor for the SCM being replaced.
  • the equipment status condition is shared directly between the equipment and the ROSCM.
  • the ROSCM may be activated and maneuvered from a first location in a subsea field, e.g., a garage, to a second location in the subsea field, e.g., the failed SCM.
  • the ROSCM may connect to a distribution system for the subsea equipment having the target SCM, e.g., at a spare power and/or communications connection tied into the power and communication distribution system. Connecting may include connecting to at least one of a spare umbilical termination assembly connection near the subsea equipment, a hydraulic distribution system associated with the subsea equipment, a power distribution system associated with the subsea equipment, and a communication distribution system associated with the subsea equipment.
  • Block 306 may optionally include receiving an operating instruction, e.g., an emergency shut-down (ESD), a navigation instruction, an equipment monitoring instruction, an equipment status update instruction, a troubleshooting and/or diagnostic instruction, a parts replacement instruction, etc., for the subsea equipment from a master control station (MCS).
  • ESD emergency shut-down
  • MCS master control station
  • the ROSCM may provide at least one of hydraulic power, electrical power, and communications to the subsea equipment. In circumstances where control of the subsea equipment was previously lost, this may comprise restoring control of the subsea equipment.
  • the method comprises enabling the ROSCM to be replaced by a second, replacement SCM. This may be appropriate where the first SCM failed. In other circumstances, e.g., for maintenance, replacing the ROSCM with a replacement SCM may not be desired or required. Enabling the ROSCM to be replaced may comprise placing the subsea equipment in a particular configuration, e.g., a shutdown sequence, such that repair and/or replacement may occur.
  • ROSCM When the ROSCM is configured to do so, some or all of the steps above may be repeated for different subsea equipment, e.g., a subsea equipment located in a second well-site.
  • multiple ROSCMs are configured to service the same well-site.
  • multiple well-sites may be serviced by a single ROSCM.
  • steps 302-310 are all directed by a human operator located at a remote location, e.g., on the host platform 150 of FIG. 1, sending remote operation instructions, e.g., via umbilical's 180, 184 of FIG. 1.
  • at least some (e.g., two or more) of steps 302-310 are autonomously performed while at least some (e.g., at least one) of steps 302-310 are remotely directed by a human operator located at a remote location.
  • steps 302-310 are all performed autonomously by the system, e.g., the system 100 of FIG. 1, without human intervention.
  • steps 302-308 may occur in less than a week, less than two days, less than 24 hours, less than 18 hours, less than 12 hours, or less than 6 hours.
  • ROSCM remotely operated vehicle
  • the ROSCM may be optionally configured to install hydraulic remotely operated vehicle (ROV)-operated tools onto the manual overrides of valves on an as-needed basis to enable restoration of functionality of the subsea equipment.
  • ROV remotely operated vehicle
  • this may include one or more manipulatable arms, depicted in FIG. 2 as 233, or similar structural components on the ROSCM for manually manipulating equipment such as valves, switches, etc.
  • FIG. 4 is a block diagram of a master control station (MCS) 400 that may be used to perform any of the methods disclosed herein.
  • a central processing unit (CPU) 402 is coupled to system bus 404.
  • the CPU 402 may be any general-purpose CPU, although other types of architectures of CPU 402 (or other components of exemplary system 400) may be used as long as CPU 402 (and other components of system 400) supports the inventive operations as described herein.
  • the CPU 402 may execute the various logical instructions according to disclosed aspects and methodologies. For example, the CPU 402 may execute machine-level instructions for performing processing according to aspects and methodologies disclosed herein.
  • the MCS 400 may also include computer components such as a random access memory (RAM) 406, which may be SRAM, DRAM, SDRAM, or the like.
  • the MCS 400 may also include read-only memory (ROM) 408, which may be PROM, EPROM, EEPROM, or the like.
  • RAM 406 and ROM 408 hold user and system data and programs, as is known in the art.
  • the MCS 400 may also include an input/output (I/O) adapter 410, a communications adapter 422, a user interface adapter 424, and a display adapter 418.
  • the MCS 400 may also include one or more graphics processor units 414, which may be used for various computational activities.
  • the I/O adapter 410, the user interface adapter 424, and/or communications adapter 422 may, in certain aspects and techniques, enable a user to interact with MCS 400 to input information.
  • the I/O adapter 410 preferably connects a storage device(s) 412, such as one or more of hard drive, compact disc (CD) drive, floppy disk drive, tape drive, etc. to MCS 400.
  • the storage device(s) may be used when RAM 406 is insufficient for the memory requirements associated with storing data for operations of embodiments of the present techniques.
  • the data storage of the MCS 400 may be used for storing information and/or other data used or generated as disclosed herein.
  • the communications adapter 422 may couple the MCS 400 to a network (not shown), which may enable information to be input to and/or output from MCS 400 via the network (for example, a wide-area network, a local-area network, a wireless network, any combination of the foregoing).
  • User interface adapter 424 couples user input devices, such as a keyboard 428, a pointing device 426, and the like, to MCS 400.
  • the display adapter 418 is driven by the CPU 402 to control, through a display driver 416, the display on a display device 420.
  • Information and/or representations of one or more 2D canvases and one or more 3D windows may be displayed, according to disclosed aspects and methodologies.
  • the architecture of MCS 400 may be varied as desired.
  • any suitable processor-based device may be used, including without limitation personal computers, laptop computers, computer workstations, and multi-processor servers.
  • embodiments may be implemented on application specific integrated circuits (ASICs) or very large scale integrated (VLSI) circuits.
  • ASICs application specific integrated circuits
  • VLSI very large scale integrated circuits
  • the MCS 400 may be located on a host platform, e.g., in a local equipment room (LER) of the host platform 150.
  • the MCS 400 may be connected to an electrical power unit (EPU) and an umbilical 180, 184 that terminate at a well-site 120, 110 by a UTA 128, 118 for controlling the ROSCM 102.
  • Communications may be transmitted from an associated production control system (PCS) via the MCS 400, through the umbilical 180, 184 to the ROSCM 102 to perform the necessary operative actions to restore control to the subsea equipment 114, 124, or other.
  • PCS production control system
  • the MCS 400 may control a hydraulic power unit (HPU) that serves as the power source for performing hydraulically powered operations at the well-site, e.g., to open and close valves, or other operation.
  • the HPU may be used to transmit hydraulic power via the umbilical 180, 184 to the ROSCM 102 for performing hydraulic functions necessary to operate the subsea equipment.
  • Persons of ordinary skill in the art of subsea control systems may use any number of configurations to supply power and communications to a ROSCM, based upon use of the above embodiments.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

L'invention concerne des procédés de remplacement d'un module de commande sous-marin (SCM) associé à un appareillage sous-marin, lesquels procédés comprennent : l'identification d'une condition indiquant la nécessité de remplacer le SCM ; l'activation d'un module de commande sous-marin télécommandé (ROSCM) situé à un premier emplacement dans un champ sous-marin ; la manœuvre du ROSCM pour l'amener du premier emplacement à un second emplacement dans le champ sous-marin, le ROSCM étant autopropulsé ; le raccordement du ROSCM à un système de distribution de l'appareillage sous-marin ; la fourniture d'énergie hydraulique et/ou d'électricité et/ou de communications à l'appareillage sous-marin ; et le remplacement du ROSCM par un second SCM. L'invention concerne également des ROSCM et des systèmes sous-marins comprenant de tels ROSCM.
PCT/US2016/067534 2016-01-14 2016-12-19 Module de commande sous-marin télécommandé WO2017123386A1 (fr)

Applications Claiming Priority (4)

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US201662278630P 2016-01-14 2016-01-14
US62/278,630 2016-01-14
US15/381,364 2016-12-16
US15/381,364 US20170204704A1 (en) 2016-01-14 2016-12-16 Remotely-Operated Subsea Control Module

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