• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    subsea guidance and control system - the present invention is related to a tooling unit for installation and conducting subsea tests of wellhead modules, such as Christmas trees and similar equipment, from a ship using a ship crane , differentiated by the fact that the tooling unit consists of an underwater unit comprising a connector, for releasably connecting to the modules or equipment of the sunmarine wellhead, means for positioning and carrying out tests, and a connector for electrical energy and electrical control and / or optical. the invention also refers to the method of using the tooling unit.
    公开号:BR112012025835B1
    申请号:R112012025835-4
    申请日:2011-04-13
    公开日:2020-03-24
    发明作者:Anders Billington；Are Synnes；Christen Sovik
    申请人:Aker Solutions As；
    IPC主号:
    专利说明:

    “SUBMARINE GUIDANCE AND CONTROL SYSTEM
    Field of the Invention [001] The present invention relates to subsea wellhead assemblies. More specifically, the invention relates to tooling units and methods for installing wellhead assemblies, such as wellhead XT (Christmas tree) and associated equipment.
    Background of the Invention and State of the Art [002] Currently, subsea wellhead assemblies are typically installed using a drilling rig and a drill pipe column for deployment and deployment. A separate umbilical cable from the probe to the wellhead equipment provides pressurized fluids for testing and approval, as well as electrical and control lines. Typically, one or more ROVs are also used in the operation. The time and equipment used represent a very high cost. In shallow water, if the drilling rig is in the field and drilling has started, then being used to install a low-production XT (Christmas tree) and other related equipment, this can be critical, particularly if the drilling rig drilling is still under contract. However, in deep waters, which can be thousands of meters deep, and with a large number of wellheads, the cost can be very high. Sometimes, the probe must return for additional tests or installations, which further increases costs. The operation of joining drilling pipes in extensions of up to several thousand meters and large drums with umbilical cables, as well as installations for hydraulic power units and hydraulic storage of liquid and gas for carrying out tests, are all operations of high cost and that take long periods of time. The large size and weight requires large spaces, and may require several
    Petition 870190076206, of 07/08/2019, p. 8/21
    2/7 containers on the rig deck. Therefore, there is a demand for a technology of useful application for installation and testing of subsea wellhead assemblies, without the use of a drilling rig, this technology should make significant cuts in the required equipment and in the period of time spent for these. operations.
    Summary of the Invention [003] The present invention meets the above mentioned demand.
    [004] More specifically, the invention provides a tooling unit for installation and testing of wellhead modules and similar subsea equipment, such as Christmas trees and similar equipment, from a ship using a crane, characterized in that the tooling unit comprises:
    - an underwater unit comprising a connector for releasable connection to subsea wellhead modules or equipment, means for positioning and means for carrying out tests and a connector for electrical energy and electrical and / or optical control.
    [005] The tooling unit does not have a supply of hydraulic fluid or gas through umbilical cable or another pressure line from the surface, as only signals of electric propulsion and / or electrical and / or optical control are transferred between the position of the surface and the wellhead area. The tooling unit is adapted to be handled by a ship's crane, being suspended by a cable or rope connected through lifting ears, a distributor or similar means. The tooling unit comprises an upper lateral control device and connection to an electric propulsion and control device, in addition to the subsea unit. The subsea unit is connected to the hull surface installations
    Petition 870190076206, of 07/08/2019, p. 9/21
    3/7 of a ship through an electric / optical umbilical cable, optionally via an ROV connected to the subsea unit, that is, the umbilical cable of an ROV operation system can be used for propulsion and control. Consequently, there is no riser or hose for pressurized fluid from the ship, descending to the tooling unit, nor to the installation, time of approval or tests, which constitutes a marked advantage for the present invention, in relation to conventional technology, particularly , when the depth is great and many wellhead assemblies are arranged.
    [006] The tooling unit is useful for installation and testing of all functions, and communication for all sensors, for subsea equipment, particularly for production Christmas trees, from wellheads, modules, pumps, compressors and units of different types, particularly equipment that is too heavy and / or large to be installed and tested using conventional ROV systems and tooling units.
    [007] Preferably, the tooling unit comprises means for connecting the subsea unit to a ROV (Remote Operated Vehicle), for propulsion and control of the subsea unit, from an upper lateral control unit, through the ROV and its umbilical cable . The device for connecting to an ROV preferably consists of one or more docking stations, with receptacles and connectors operationally connectable to a corresponding ROV device. The connectors are separate or common for hydraulic propulsion, electric propulsion and signals, most ROV operators can provide these connectors, for example.
    Petition 870190076206, of 07/08/2019, p. 10/21
    4/7 example, thermal fittings with inductive or contact connectors for energy and / or electrical signals.
    [008] The positioning means, preferably, comprise propellers integrated in the tooling unit and the propulsion force applied from the optional docked ROVs, in addition to a crane on the ship. In addition, also, lifting ears, distributors, etc., can be considered as means of positioning, allowing the suspended position by a crane cable or rope.
    [009] The subsea unit preferably comprises means for determining the position and orientation, comprising a gyroscope arranged therein, an optionally connected ROV positioning system, and additional optional wellhead sensors, modules and equipment, in addition to wellhead instrumentation equipment and optional cameras arranged in the tooling unit and wellhead modules or equipment.
    [010] The tooling unit comprises means for testing and providing approval, preferably comprising groups of fluids, such as accumulators and nitrogen gas cylinders, for sealing and pressure tests; and means for mechanical connection to the wellhead and disconnection of the subsea unit after testing and mechanical operation, such as valve operation and hydraulic fluid filling, such as MEG groups, and a hydraulic power unit subsea unit and / or an optional ROV system connected via thermal fittings or similar. Preferably, the subsea unit has a hydraulic propulsion unit, comprising a hydraulic motor driven by the hydraulic devices of the ROV, where the hydraulic circuits of the subsea unit conveniently use MEG as hydraulic fluid.
    Petition 870190076206, of 07/08/2019, p. 11/21
    5/7 [011] The invention also provides a method of installing underwater wellhead modules or equipment, such as a Christmas tree, from a ship using a crane, and using the tooling unit of the invention, characterized by implementation of the wellhead module or equipment, reliably connected to the subsea unit of said tooling unit, using a mechanical connector and the ship's crane, but without any umbilical cable or surface liquid or gas supply line using the unit tooling connected to an electric or electric-optical umbilical cable devoid of fluid, or to an ROV, for positioning and connection to an underwater wellhead.
    [012] Preferably, the method also comprises the stages of pressure and functioning tests, and disconnection of the tooling unit from the wellhead module or equipment, after the said test.
    [013] In addition, the invention provides means for testing the pressure of subsea wellhead modules or equipment, characterized in that the means comprise an accumulator filled with gas and a cylinder filled with gas, having connectors for mechanical sealing and connectors for propulsion and control, for operational connection to the subsea wellhead module or equipment, for testing. The means or devices are included in the tooling unit of the invention or are included or releasably connected to other equipment of the seabed, such as, for example, pumps, compressors and subsea modules.
    [014] In addition, the invention provides a method for installing underwater wellhead modules, such as Christmas trees and similar equipment, from a ship using a crane, and using the tooling unit of the invention, characterized by steps of:
    Petition 870190076206, of 07/08/2019, p. 12/21
    6/7
    - connect in a sealed mode, an accumulator filled with gas and a cylinder filled with gas, and connectors for activation and control, to the subsea module or equipment;
    - remove the water from the volume to be tested, by opening the accumulator, in order to move the sparkling water;
    - pressurize to the test pressure, by operating the cylinder; and
    - monitor the pressure for an established period of time.
    Description of the Figures [015] The invention is illustrated with four figures, in which:
    figure 1 shows a tooling unit according to the invention, before connection to a wellhead;
    - figure 2 illustrates the tooling unit shown in figure 1, even before connection to the wellhead, but connected to an ROV;
    - figure 3 illustrates the tooling unit shown in figures 1 and 2, when connected to a wellhead; and
    figure 4 represents a more detailed illustration of the tooling unit according to the invention.
    Detailed Description of the Invention [016] Now, reference is made to figure 1, which illustrates a tooling unit according to the invention, more specifically, an underwater unit (1) of the tooling unit, when releasably connected to a Christmas tree submarine (2), for connection to an underwater wellhead (3). The set is implemented when placed suspended, from a ship (4). Also, an ROV (Remote Operated Vehicle) is illustrated, operated from the ship.
    [01Ί] Reference is now made to figure 2, illustrating that the ROV was docked for the subsea unit (1). In the illustrated modality, the submarine unit (1) and Christmas tree (2) set is kept suspended by a ship's cable,
    Petition 870190076206, of 07/08/2019, p. 13/21
    7/7 and signals of electric propulsion and control are provided through the ROV, through the electric-optical umbilical cable of the ROV, using the hydraulic propulsion unit of the said ROV, to drive a hydraulic system of the subsea unit, through a pump hydraulic converter. Alternatively, the subsea unit can be directly connected to a fluid-free umbilical cord, the subsea unit itself including all means or devices for mechanical and electrical operation and testing, and testing of any other devices, or the means can be provided from the ROV system, to a greater or more complete degree. Also, an observation ROV can be used to facilitate the operation. The illustrated underwater unit weighs about 24 metric tons, and the releasably connected Christmas tree weighs about 40 metric tons.
    [018] Figure 3 illustrates the Christmas tree (2) when connected to the wellhead (3). After testing the connection, operation of the valves and communication with all sensors in the subsea system, the subsea unit (1) is disconnected from the Christmas tree.
    [019] Figure 4 is a more detailed illustration of a tooling unit according to the present invention. Similar items are indicated by the same numerical reference in all figures. Figure 4 clearly shows, among other things, an ROV docking station, where receptacles (6) and thermal slot openings (7) are illustrated.
    权利要求:
    Claims (9)
    [1]
    1/3
    1. Tooling unit for installation and conducting subsea tests of wellhead modules, such as Christmas trees and similar equipment, from a ship using a respective crane, characterized by the fact that the tooling unit comprises an underwater unit, which comprises a connector for releasably connecting to subsea wellhead modules or equipment, means for positioning and carrying out tests including a fluid bank, and a connector for electric propulsion and electrical and / or optical control.
    [2]
    2. Tooling unit, according to claim 1, characterized by the fact that the tooling unit does not have any hydraulic supply of liquid or gas through umbilical cable or another pressure line from the surface, in which only signs of propulsion electrical and electrical and / or optical control signals are transferred between the position of the surface and the wellhead area.
    [3]
    3. Tooling unit, according to claim 1 or 2, characterized by the fact that it comprises means to connect the subsea unit to an ROV, to propel and control the subsea unit, from a control unit at the top of the surface, through of the ROV and its umbilical cables.
    [4]
    4. Tooling unit, according to claim 1, characterized by the fact that the means for positioning include orientable thrusters integrated in the tooling unit and the force of said thrusters applied from optional docked ROVs, in addition to a crane on the ship.
    [5]
    5. Tooling unit, according to claim 1, characterized by the fact that the subsea unit comprises means to determine the position and
    Petition 870200008320, of 01/17/2020, p. 6/8
    2/3 orientation, comprising a gyroscope in the subsea unit, an optionally connected ROV positioning system, and additional optional positioning sensors in the subsea unit, in addition to wellhead modules and equipment and wellhead instrumentation equipment , as well as optional cameras arranged in the tooling unit and wellhead modules or equipment.
    [6]
    6. Tooling unit according to any one of claims 1 to 5, characterized by the fact that the tooling unit comprises means for carrying out tests and providing approval, comprising groups of fluids such as accumulators and nitrogen gas cylinders for sealing and pressure testing; and means for mechanical connection to the wellhead and disconnection of the subsea unit after testing and mechanical operation, such as valve operation and hydraulic fluid filling, such as MEG groups, and a hydraulic propulsion unit subsea unit or an optional ROV system connected via thermal fittings or similar.
    [7]
    7. Method for underwater installation of wellhead modules, such as Christmas trees and similar equipment, from a ship using a respective crane, and using the tooling unit as defined in any of claims 1 to 6, characterized by the fact that the wellhead module or equipment is releasably connected to the subsea unit of said tooling unit, using the ship's crane, but without any cable or umbilical line that provides liquid or gas from the surface, using the connected tooling unit to an electric or electric-optical umbilical cable without fluid, or to an ROV, for positioning and connection to an underwater wellhead.
    Petition 870200008320, of 01/17/2020, p. 7/8
    3/3
    [8]
    8. Method, according to claim 7, characterized by the fact that the method also comprises the stages of pressure and operating tests, and disconnection of the tooling unit from the wellhead module or equipment, after said tests.
    [9]
    9. Method for testing the pressure of subsea wellhead modules or equipment, using the tooling unit as defined in any of claims 1 to 6, characterized in that the method comprises the steps of:
    - connect in a sealed mode, an accumulator filled with gas and a cylinder filled with gas, and connectors for activation and control, to the subsea module or equipment;
    - remove the water from the volume to be tested, by opening the accumulator, in order to move the sparkling water;
    - pressurize to the test pressure, by operating the cylinder; and
    - monitor the pressure for an established period of time.
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    法律状态:
    2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-06-11| B06T| Formal requirements before examination [chapter 6.20 patent gazette]|
    2019-07-16| B25D| Requested change of name of applicant approved|Owner name: AKER SOLUTIONS AS (NO) |
    2019-10-22| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2020-02-04| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-03-24| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 13/04/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    NO20100532A|NO335430B1|2010-04-14|2010-04-14|Underwater installation tools and procedures|
    NO20100532|2010-04-14|
    PCT/EP2011/055765|WO2011128355A2|2010-04-14|2011-04-13|Subsea orientation and control system|
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