CN113062708A - Underwater central manifold with control system - Google Patents
Underwater central manifold with control system Download PDFInfo
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- CN113062708A CN113062708A CN202110245951.5A CN202110245951A CN113062708A CN 113062708 A CN113062708 A CN 113062708A CN 202110245951 A CN202110245951 A CN 202110245951A CN 113062708 A CN113062708 A CN 113062708A
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 192
- 238000004519 manufacturing process Methods 0.000 claims abstract description 79
- 241000191291 Abies alba Species 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 239000013043 chemical agent Substances 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 235000004507 Abies alba Nutrition 0.000 abstract description 14
- 239000002689 soil Substances 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910000885 Dual-phase steel Inorganic materials 0.000 description 1
- 229910000846 In alloy Inorganic materials 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 1
- 229910001119 inconels 625 Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- 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
- E21B43/013—Connecting a production flow line to an underwater well head
-
- 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
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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)
- Earth Drilling (AREA)
Abstract
The invention discloses an underwater central manifold with a control system, which comprises a suction anchor; a frame having an anode disposed thereon; the system comprises a manifold module, a control module and a control module, wherein the manifold module comprises a first underwater router, a second underwater router, a control module, a manifold top plate, a liquid pipeline and an underwater multi-path hydraulic joint; the production pipeline system comprises a production pipeline, two production reserved pipelines and eight production branch pipelines; the system comprises an ethylene glycol pipeline system and a control system, wherein the ethylene glycol pipeline system comprises an ethylene glycol pipeline, two ethylene glycol reserve pipelines and eight ethylene glycol branch pipelines; and the emptying pipeline system comprises emptying pipelines and eight emptying branch pipelines. The invention realizes a set of complete underwater central manifold equipment with a large control range, is suitable for soft soil and deeper underwater production, and meets the requirement of simultaneous access of a plurality of underwater Christmas trees.
Description
Technical Field
The invention relates to the technical field of offshore oil conveying equipment, in particular to an underwater central manifold with a control system.
Background
Underwater production systems have been extensively studied and applied as an important means of oil and gas field development in many countries of the world due to their obvious economic advantages in developing deep and marginal oil and gas fields.
The related data show that the ocean field contains abundant petroleum resources, the undiscovered oil and gas reserves are mostly predicted in the deepwater sea area, and the underwater central manifold with the control system is one of core devices in the deepwater underwater production system, the integration level is high, the design difficulty is high, so that the conventional deepwater underwater production system does not have a set of complete underwater central manifold devices with a large control range.
Disclosure of Invention
The invention aims to solve the technical problem of how to provide an underwater central manifold with a control system so as to solve the problem that no complete underwater central manifold device with a large control range exists in the existing deepwater underwater production system.
In order to solve the technical problem, the invention provides an underwater central manifold with a control system, which comprises a suction anchor; a frame disposed on the suction anchor, the frame having an anode disposed thereon; the manifold module comprises a first underwater router, a second underwater router, a control module, a manifold top plate, a liquid pipeline and an underwater multi-path hydraulic joint, wherein the first underwater router, the second underwater router, the control module, the manifold top plate, the liquid pipeline and the underwater multi-path hydraulic joint are arranged on the framework; the production pipeline system is arranged in the frame and comprises a production pipeline, two production reserved pipelines which are respectively connected to two ends of the production pipeline, and eight production branch pipelines which are connected to the production pipeline at intervals, the production pipeline is connected with a second submarine pipeline terminal device, the production pipeline is also connected with an underwater spherical pig launching or receiving device, and the production branch pipelines are connected with the underwater Christmas tree; the ethylene glycol pipeline system is arranged in the framework and connected with the underwater Christmas tree, the ethylene glycol pipeline system comprises an ethylene glycol pipeline, two ethylene glycol reserve pipelines connected to one end close to the ethylene glycol pipeline, and eight ethylene glycol branch pipelines connected to the ethylene glycol pipeline at intervals, and the ethylene glycol pipeline is connected with a first submarine pipeline terminal device; and the emptying pipeline system comprises emptying pipelines and eight emptying branch pipelines connected to the emptying main pipe at intervals.
Further, the suction anchor includes the barrel, sets up trompil structure on the barrel, sets up scale mark on the barrel, set up on the barrel with digital sign that the scale mark corresponds and setting are in a plurality of leveling mechanism on barrel top, the frame sets up in a plurality of leveling is structural.
Furthermore, the frame divide into the three-layer, and has evenly arranged the positive pole, the frame includes top layer structure, with the corresponding substructure that sets up of top layer structure and setting are in top layer structure with a plurality of hoist and mount stand between the substructure, each hoist and mount stand's top is provided with one and passes the lug of top layer structure, the substructure sets up a plurality of on the leveling mechanism, top layer structure with the interval is provided with a controller base and two router bases between the substructure, first router under water with the second router sets up respectively two on the router base, control module sets up on the controller base, the manifold roof sets up on the top layer structure.
Furthermore, an underwater robot operating handle, an underwater valve operating opening, an underwater valve identifier, a manifold installation direction identifier, a corrosion monitoring point, a manifold weight identifier, a first door opening structure corresponding to the first router position, a second door opening structure corresponding to the second underwater router position, and a third door opening structure corresponding to the control module are arranged on the manifold top plate.
Furthermore, the underwater multi-path hydraulic joint is provided with two high-pressure hydraulic pipelines, two low-pressure hydraulic pipelines, three methanol pipelines, a chemical agent injection pipeline and a standby pipeline, and the two low-pressure hydraulic pipelines are connected with the control module.
Furthermore, the production pipeline comprises a production main pipe, a first underwater ball valve and a third underwater ball valve which are respectively arranged at two ends of the production main pipe, two bent pipes which are respectively connected with the first underwater ball valve and the third underwater ball valve, and a first underwater connector and a third underwater connector which are respectively arranged at the end parts of the two bent pipes, wherein the first underwater connector is connected with a second submarine pipeline terminal device through a third underwater jumper pipe.
Furthermore, the production reserve pipeline comprises a second underwater ball valve arranged at the end part of the main production pipe close to the end part, a first elbow connected with the second underwater ball valve, a first straight pipe connected with the first elbow, and a second underwater connector connected with the end part of the first straight pipe.
Furthermore, the production branch pipeline comprises a ball-blocking tee connected to the production main pipe, a third straight pipe section connected with the ball-blocking tee, a first underwater gate valve connected with the third straight pipe section, a second elbow connected with the first underwater gate valve, a second straight pipe section connected with the second elbow, and a branch pipe underwater connector connected with the end part of the second straight pipe section, wherein the branch pipe underwater connector is connected with the underwater Christmas tree through a first underwater jumper pipe.
Furthermore, the ethylene glycol pipeline comprises an ethylene glycol main pipe, a seventh underwater connector connected to the first end of the ethylene glycol main pipe, and a second underwater gate valve connected to the ethylene glycol main pipe, wherein the seventh underwater connector is connected with the first submarine pipeline terminal device through a second underwater jumper pipe; the end parts of the two ethylene glycol reserved pipelines are respectively provided with a fifth underwater connector and a sixth underwater connector; the ethylene glycol branch pipeline comprises a first reducing tee joint arranged on the ethylene glycol main pipe, a sixth straight pipe section connected with the first reducing tee joint, a third underwater gate valve connected with the sixth straight pipe section, a fifth straight pipe section connected with the third underwater gate valve, a fourth straight pipe section connected with the fifth straight pipe section and a fourth underwater connector connected with the end part of the fourth straight pipe section.
Furthermore, the emptying pipeline comprises an emptying main pipe and an eighth underwater connector connected to the first end of the emptying main pipe; the emptying branch pipeline comprises a tee joint arranged on the emptying main pipe, an eighth straight pipe section connected with the tee joint, a fourth underwater gate valve connected with the eighth straight pipe section, a seventh straight pipe section connected with the fourth underwater gate valve, and a reducer union connected with the end part of the seventh straight pipe section.
The invention has the technical effects that: by the structure, a set of complete underwater central manifold equipment with a large control range is realized; meanwhile, the underwater robot is suitable for soft soil and deeper underwater production, meets the simultaneous access of a plurality of underwater Christmas trees, supports the independent recovery and installation of an underwater router and a control module by an underwater robot, and has the functions of falling object prevention, conversion of optical signals into electric signals, remote control operation of an underwater valve, expansion and return connection of a newly-built pipeline, access of an underwater ball launching or receiving device and the like.
Drawings
Fig. 1 is a schematic overall structure diagram of an underwater central manifold with a control system according to an embodiment of the present invention.
Fig. 2 is an elevation view of the overall structure of a subsea central manifold with a control system according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a manifold ceiling in an underwater central manifold with a control system according to an embodiment of the present invention.
Fig. 4 is a front view of a frame in an underwater central manifold with a control system according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a production piping system in an underwater central manifold with a control system according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a glycol pipeline system in a subsea central manifold with a control system according to an embodiment of the present invention.
FIG. 7 is a schematic structural diagram of a blow-down piping system in an underwater central manifold with a control system according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of an underwater multipath hydraulic joint in an underwater central manifold with a control system according to an embodiment of the present invention.
Fig. 9 is a flowchart of a control module in an underwater central manifold with a control system according to an embodiment of the present invention.
Fig. 10 is a schematic diagram of an arrangement of anodes in an underwater central manifold with a control system according to an embodiment of the present invention.
Fig. 11 is a schematic production operation diagram of an underwater central manifold with a control system according to an embodiment of the present invention.
Wherein, 1, a manifold module; 2. a first underwater router; 3. producing a pipeline system; 4. a second underwater router; 5. a glycol piping system; 6. emptying a pipeline system; 7. a suction anchor; 8. a control module; 9. a frame; 10. a leveling mechanism; 11. a digital identification; 12. scale marks; 13. an open cell structure; 14. a barrel; 15. the underwater robot operates the handle; 16. an underwater valve operating port; 17. identifying an underwater valve; 18. installing a direction mark on the manifold; 19. a first door opening structure, 20, corrosion monitoring points; 21. identifying the manifold weight; 22 a third door opening structure, 23 and a second door opening structure; 24. manifold top plate, 25, top layer structure; 26. lifting lugs; 27. a controller base; 28. a router base; 29. hoisting the upright column; 30. an anode; 31. a first subsea connector; 32. bending the pipe; 33. a first subsea ball valve; 34. a second subsea connector; 35. a first straight pipe section; 36. a first elbow; 37. a second underwater ball valve; 38. a branch underwater connector; 39. a second straight tube section; 40. a second elbow; 41. a first underwater gate valve; 42. a third straight tube section; 43. a ball blocking tee joint; 44. a third underwater ball valve; 45. producing a main pipe; 46. a third subsea connector; 47. a second underwater gate valve; 48. a fourth subsea connector; 49. a fourth straight tube section; 50. a fifth straight tube section; 51. a third underwater gate valve; 52. a sixth straight tube section; 53. a first reducing tee; 54. a main ethylene glycol tube; 55. a fifth underwater connector; 56. a sixth subsea connector; 57. a seventh subsea connector; 58. a reducer union; 59. a seventh straight tube section 59; 60. a fourth underwater gate valve; 61. an eighth straight tube section; 62. a tee joint; 63. emptying the main pipe; 64. an eighth subsea connector; 65. underwater multipath hydraulic joints; 66. a high pressure hydraulic line; 67. a low pressure hydraulic line; 68. a methanol line; 69. a chemical injection line; 70. a spare pipeline; 71. a first electrical flying lead; 72. a first optical fly line; 73. a first liquid flight; 74. a second optical fly line; 75. a second electrical flying lead; 76. a first internal electrical flying lead; 77. a second internal electrical flying lead; 78. a liquid line; 79. a low pressure hydraulic branch line; 80. ethylene glycol fly line; 81. a second liquid fly-line; 82. an underwater Christmas tree; 83. a first subsea jumper; 84. a third electrical flying lead; 85. a fourth electrical flying lead; 86. a second subsea jumper; 87. a first subsea pipeline terminal device; 88. an umbilical cable; 89. a third subsea jumper; 90. a second subsea pipeline termination device.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
An embodiment of the present invention provides an underwater central manifold with a control system, which is shown in fig. 1 to 11, and includes a suction anchor 7, a frame 9, a manifold module 1, a production pipe system 3, a glycol pipe system 5, and a vent pipe system 6.
Specifically, the suction anchor 7 comprises a cylinder 14, a hole structure 13 arranged on the cylinder 14, a scale mark 12 arranged on the cylinder 14, a number mark 11 arranged on the cylinder 14 and corresponding to the scale mark 12, and a plurality of leveling mechanisms 10 arranged at the top end of the cylinder 14, wherein the frame 9 is arranged on the plurality of leveling mechanisms. In this embodiment, the diameter of the cylinder 14 is 7.6 meters, but may be adjusted according to actual requirements.
Specifically, the frame 9 is divided into three layers, and anodes 30 are uniformly arranged, the frame 9 includes a top layer structure 25, a bottom layer structure (not labeled in the figure) corresponding to the top layer structure 25, and a plurality of hoisting columns 29 arranged between the top layer structure 25 and the bottom layer structure, the top end of each hoisting column 29 is provided with a lifting lug 26 penetrating through the top layer structure 25, the bottom layer structure is arranged on a plurality of leveling mechanisms 10, a controller base 27 and two router bases 28 are arranged between the top layer structure 25 and the bottom layer structure at intervals, the first underwater router 2 and the second underwater router 4 are respectively arranged on the two router bases 28, the control module 8 is arranged on the controller base 27, and the manifold top plate 24 is arranged on the top layer structure 25. In the present embodiment, the anode 30 is an Al-Zn-In alloy anode 30.
Specifically, the manifold module 1 includes a first underwater router 2, a second underwater router 4, a control module 8, a manifold top plate 24, a liquid pipeline 78 and an underwater multipath hydraulic connector 65 which are arranged on a frame 9, the first underwater router 2 and the second underwater router 4 are both connected with the control module 8, the first underwater router 2 and the second underwater router 4 are both connected with an underwater Christmas tree 82, the first underwater router 2 and the second underwater router 4 are both connected with an umbilical 88, the control module 8 is connected with the underwater multipath hydraulic connector 65, and the underwater multipath hydraulic connector 65 is respectively connected with the umbilical 88 and the underwater Christmas tree 82. Wherein the fluid line 78 is used to distribute hydraulic and chemical agents within the umbilical 88.
Specifically, the umbilical 88 is divided into a first electric flying wire 71, a first optical flying wire 72, a second electric flying wire 75, a second optical flying wire 74, and a first liquid flying wire 73. The first underwater router 2 is connected to a first electric flying wire 71 and a first optical flying wire 72, respectively, and the second underwater router 4 is connected to a second electric flying wire 75 and a second optical flying wire 74, respectively.
Specifically, the first underwater router 2 converts the optical signal into an electrical signal and then connects the electrical signal to the subsea tree 82 through the nine first internal electrical flying wires 76 and the third electrical flying wire 84, and the second underwater router 4 converts the optical signal into an electrical signal and then connects the electrical signal to the subsea tree 82 through the nine second internal electrical flying wires 77 and the fourth electrical flying wire 85.
Specifically, the first underwater router 2 is also connected to the control module 8 by a first internal electrical flying wire 76 and a second internal electrical flying wire 77 to provide power to the control module 8.
Specifically, an underwater robot operating handle 15, an underwater valve operating port 16, an underwater valve identifier 17, a manifold installation direction identifier 18, a corrosion monitoring point 20, a manifold weight identifier 21, a first door opening structure 19 corresponding to the position of the first router, a second door opening structure 23 corresponding to the position of the second underwater router 4, and a third door opening structure 22 corresponding to the control module 8 are arranged on the manifold top plate 24.
Specifically, the underwater robot operating handle 15 is provided at other positions of the first door opening structure 19, the second door opening structure 23, and the third door opening structure 22, and the manifold base plate. Corresponding positions can be opened by the underwater robot to realize the recovery and installation of the first underwater router 2, the second underwater router 4 and the control module 8.
Specifically, the underwater multi-path hydraulic joint 65 is provided with two high-pressure hydraulic lines 66, two low-pressure hydraulic lines 67, three methanol lines 68, a chemical injection line 69, and a standby line 70, and the two low-pressure hydraulic lines are connected to a low-pressure hydraulic branch line 79 of the control module 8. Therefore, the underwater valve can be remotely controlled by connecting the low-pressure hydraulic pipe with an actuator of a hydraulic control underwater valve after internal distribution.
In this embodiment, the high pressure hydraulic line 66 is 3-4 feet in size and has a pressure rating of 10000 psi; the low pressure hydraulic line 67 is 3-4 feet in size and pressure rating of 5000 psi; methanol line 68 is sized at 1 foot and a pressure rating of 5000 psi; the chemical injection line 69 is 3-4 feet in size and has a pressure rating of 5000 psi; the spare line 70 is 3-4 feet in size and has a pressure rating of 5000 psi; the material of the pipeline is duplex stainless steel S31803.
Specifically, the subsea multi-way hydraulic connector 65 is connected to a subsea tree 82 via a second hydraulic flying lead 81 to deliver hydraulic and chemical agents to the subsea tree 82.
Specifically, the production pipeline system 3 is arranged in the frame 9, the production pipeline system 3 includes a production pipeline, two production reserve pipelines respectively connected to two ends of the production pipeline, and eight production branch pipelines connected to the production pipeline at intervals, the production pipeline is connected to the second submarine pipeline terminal device 90, the production pipeline is further connected to the underwater spherical pig launching or receiving device, and the production branch pipelines are connected to the underwater Christmas tree 82. The production pipeline is connected with the underwater spherical pig transmitting or receiving device, so that underwater cleaning operation can be realized, and the production pipeline can also be connected with the underwater spherical pig transmitting and receiving device according to actual requirements; the arrangement of eight production branch pipelines can meet the access of eight underwater wellheads.
Specifically, the production pipeline comprises a main production pipe 45, a first underwater ball valve 33 and a third underwater ball valve 44 which are respectively arranged at two ends of the main production pipe 45, two bent pipes 36 which are respectively connected with the first underwater ball valve 33 and the third underwater ball valve 44, and a first underwater connector 31 and a third underwater connector 46 which are respectively arranged at the end parts of the two bent pipes 36, wherein the first underwater connector 31 is connected with a second submarine pipeline terminal device 90 through a third underwater jumper 89. Wherein the first subsea connector 31 is connected to a second subsea pipeline termination device 90 for exporting the fluid collected by the manifold from the subsea tree 82.
Specifically, the production reserve line includes a second underwater ball valve 37 disposed at an end portion of the main production pipe 45 near the production, a first elbow 36 connected to the second underwater ball valve 37, a first straight pipe 35 connected to the first elbow 36, and a second underwater connector 34 connected to an end portion of the first straight pipe 35. The second underwater connector 34 can meet the requirement of access of a newly-built submarine pipeline, so that the underwater pipeline has the function of expanding loop connection of an underwater production system; the second subsea ball valve 37 may also be connected to the production main 45 via a ball stop tee 43.
Specifically, the production branch pipeline comprises a ball-blocking tee 43 connected to the production main pipe 45, a third straight pipe section 42 connected with the ball-blocking tee 43, a first underwater gate valve 41 connected with the third straight pipe section 42, a second elbow 40 connected with the first underwater gate valve 41, a second straight pipe section 39 connected with the second elbow 40, and a branch underwater connector 38 connected with the end of the second straight pipe section 39, wherein the branch underwater connector 38 is connected with the underwater Christmas tree 82 through a first underwater jumper 83.
Specifically, the ethylene glycol piping system 5 is disposed in the frame 9 and connected to the subsea tree 82, the ethylene glycol piping system 5 includes an ethylene glycol pipeline, two ethylene glycol reserve pipelines connected to one end near the ethylene glycol pipeline, and eight ethylene glycol branch pipelines connected to the ethylene glycol pipeline at intervals, the ethylene glycol pipeline being connected to the first subsea pipeline terminal device 87.
Specifically, the glycol piping system 5 distributes glycol through the glycol flying line 80 into the subsea tree 82.
Specifically, the ethylene glycol pipeline includes an ethylene glycol main pipe 54, a seventh subsea connector 57 connected to a first end of the ethylene glycol main pipe 54, and a second subsea gate valve 47 connected to the ethylene glycol main pipe 54, the seventh subsea connector 57 being connected to the first subsea pipeline termination device 87 through a second subsea jumper 86.
Specifically, the ends of the two ethylene glycol reserve lines are provided with a fifth underwater connector 55 and a sixth underwater connector 56, respectively, so that the arrangement can provide ethylene glycol for newly built underwater wellheads.
Specifically, the ethylene glycol branch pipeline comprises a first reducing tee 53 arranged on an ethylene glycol main pipe 54, a sixth straight pipe section 52 connected with the first reducing tee 53, a third underwater gate valve 51 connected with the sixth straight pipe section 52, a fifth straight pipe section 50 connected with the third underwater gate valve 51, a fourth straight pipe section 49 connected with the fifth straight pipe section 50, and a fourth underwater connector 48 connected with the end part of the fourth straight pipe section 49.
In this example, the pipeline size of the production pipeline and the pipeline size of the production reserve pipeline are both 12 inches, the pipeline size of the production branch pipeline is 8 inches, the pipeline size of the ethylene glycol pipeline is 5 inches, and the materials are all API 5L X65 lining 3mm corrosion-resistant alloy Inconel 625; the sizes of the ethylene glycol branch pipeline and the ethylene glycol reserve pipeline are both 2.5 inches, and the material is super dual-phase steel SS 2507.
Specifically, the flare pipeline system 6 includes flare pipelines and eight flare branch pipelines connected to the flare main pipe 63 at intervals. Wherein, the emptying pipeline system 6 can be used for pipeline hydrate blockage relieving emptying or wellhead emptying.
Specifically, the flare line includes a flare main 63, and an eighth subsea connector 64 connected to a first end of flare main 63. Of course, the emptying line may also comprise straight pipe sections and elbows for connection, etc. according to the actual requirements.
Specifically, the emptying branch pipeline comprises a tee 62 arranged on the emptying main pipe 63, an eighth straight pipe section 61 connected with the tee 62, a fourth underwater gate valve 60 connected with the eighth straight pipe section 61, a seventh straight pipe section 59 connected with the fourth underwater gate valve 60, and a reducer union 58 connected with the end part of the seventh straight pipe section 59.
In this embodiment, the first, second and third subsea connectors 31, 34, 46 are vertical jaw connectors, measuring 12 inches, and having a pressure rating of 5000 psi; the branch subsea connector 38 is a vertical jack catch connector, 8 inches in size, with a pressure rating of 5000 psi; the fourth 48, fifth 55 and sixth 56 subsea connectors are horizontal connectors, measuring 2.5 inches, and having a pressure rating of 5000 psi; the seventh underwater connector 57 is a vertical jaw connector, 6 inches in size, with a pressure rating of 5000 psi; the eighth subsea connector 64 is a vertical connector, measuring 2.5 inches, and having a pressure rating of 5000 psi.
In this embodiment, the first underwater ball valve 33, the second underwater ball valve 37, and the third underwater ball valve 44 are single-function underwater hydraulic ball valves, each having a size of 12 inches and a pressure rating of 2500 pounds; the first underwater gate valve 41 is a single-action underwater hydraulic control gate valve with the size of 8 inches and the pressure grade of 5000 psi; the second underwater gate valve 47 is a single-acting underwater hydraulic control gate valve with a size of 5 inches and a pressure rating of 5000 psi; the third subsea gate valve 51 and the fourth subsea gate valve 60 are single-acting subsea pilot operated gate valves, measuring 2.5 inches, and having a pressure rating of 5000 psi.
The using process of the invention is as follows: firstly, the suction anchor 7 is hoisted to the seabed through a ship crane, whether the suction anchor 7 is installed at the designed depth is judged through the digital mark 11 and the scale mark 12 on the cylinder 14, levelness adjustment is carried out through the leveling mechanism 10, and then the manifold module 1 is hoisted and fixed on the leveling mechanism 10 through the lifting lugs 26 on the hoisting upright 29. The manifold module 1 is connected with an umbilical 88, and comprises a first electric flying lead 71, a second electric flying lead 75, a first optical flying lead 72, a second optical flying lead 74 and a first liquid flying lead 73, and then the first underwater jumper 83, the second underwater jumper 86, the third underwater jumper 89, the ethylene glycol flying lead 80, the second liquid flying lead 81, the third electric flying lead 84 and the fourth electric flying lead 85 are connected in sequence.
During normal production, the first underwater connector 31 on the production main pipe 45 is connected with the second submarine pipeline terminal device 90, the manifold outputs the fluid collected from the underwater Christmas tree 82, and the third underwater connector 46 is connected with the underwater spherical pig launching or receiving device, so that underwater pigging is realized. The reserved production pipeline is provided with a second underwater connector 34, so that the requirement for the access of two newly-built submarine pipelines in the future can be met, and the function of expanding tie-back of an underwater production system is achieved. The production branch pipes can meet the access of eight underwater well heads, the ethylene glycol pipeline system 5 can distribute ethylene glycol to eight underwater Christmas trees 82 through ethylene glycol flying leads 80, and the emptying pipeline system 6 can be used for pipeline hydrate blockage relieving emptying or well head emptying.
The first underwater router 2 and the second underwater router 4 convert the optical signals into electrical signals, and then respectively transmit the electrical signals to the underwater Christmas tree 82 through the nine first internal electric flying wires 76 and the nine second internal electric flying wires 77 and the first electric flying wires 71 and the second electric flying wires 75, and respectively provide power for the underwater control module 8 through the one first internal electric flying wire 76 and the one second internal electric flying wire 77. The underwater control module 8 is connected with two low-pressure hydraulic pipelines 67, and is connected with an actuator of a hydraulic control underwater valve through a low-pressure hydraulic branch pipeline 79 after being distributed inside, so that the function of remotely controlling the underwater valve is realized.
The first underwater router 2 and the second underwater router 4 are designed in a redundant mode, the electric distribution module in the underwater control module 8 is also designed in a redundant mode, the upper portions of the three devices are respectively provided with a door opening structure, and the door opening structure is provided with an underwater robot operating handle 15. If the equipment breaks down, the door opening structure can be opened through the underwater robot under the condition that the oil and gas field does not stop production, so that the underwater router and the underwater control module 8 are recovered and maintained from the underwater router base 28 and the controller base 27 respectively and then installed back.
The invention has the technical effects that: by the structure, a set of complete underwater central manifold equipment with a large control range is realized; meanwhile, the underwater robot is suitable for soft soil and deeper underwater production, simultaneous access of a plurality of underwater Christmas trees 82 is met, the underwater robot is supported to independently recover and install the underwater router and the control module 8, and the underwater robot has the functions of falling object prevention, conversion of optical signals into electric signals, remote control operation of underwater valves, expansion and tieback of newly-built pipelines, access of underwater ball launching or receiving devices and the like.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. The utility model provides a take control system's central manifold under water which characterized in that: comprises that
A suction anchor;
a frame disposed on the suction anchor, the frame having an anode disposed thereon;
the manifold module comprises a first underwater router, a second underwater router, a control module, a manifold top plate, a liquid pipeline and an underwater multi-path hydraulic joint, wherein the first underwater router, the second underwater router, the control module, the manifold top plate, the liquid pipeline and the underwater multi-path hydraulic joint are arranged on the framework;
the production pipeline system is arranged in the frame and comprises a production pipeline, two production reserved pipelines which are respectively connected to two ends of the production pipeline, and eight production branch pipelines which are connected to the production pipeline at intervals, the production pipeline is connected with a second submarine pipeline terminal device, the production pipeline is also connected with an underwater spherical pig launching or receiving device, and the production branch pipelines are connected with the underwater Christmas tree;
the ethylene glycol pipeline system is arranged in the framework and connected with the underwater Christmas tree, the ethylene glycol pipeline system comprises an ethylene glycol pipeline, two ethylene glycol reserve pipelines connected to one end close to the ethylene glycol pipeline, and eight ethylene glycol branch pipelines connected to the ethylene glycol pipeline at intervals, and the ethylene glycol pipeline is connected with a first submarine pipeline terminal device;
and the emptying pipeline system comprises emptying pipelines and eight emptying branch pipelines connected to the emptying main pipe at intervals.
2. The subsea central manifold with control system of claim 1, wherein: the suction anchor includes the barrel, sets up trompil structure on the barrel, sets up scale mark on the barrel, set up on the barrel with digital sign and setting that the scale mark corresponds are in a plurality of leveling mechanism on the barrel top, the frame sets up in a plurality of leveling is structural.
3. The subsea central manifold with control system of claim 2, characterized in that: the frame divide into the three-layer, and the equipartition has the positive pole, the frame include top layer structure, with the corresponding substructure that sets up of top layer structure and setting are in top layer structure with a plurality of hoist and mount stand between the substructure, each the top of hoist and mount stand is provided with one and passes the lug of top layer structure, substructure sets up a plurality of leveling mechanism is last, top layer structure with the interval is provided with a controller base and two router bases between the substructure, first router under water with the second router sets up respectively two on the router base, control module sets up on the controller base, the manifold roof sets up structural.
4. The subsea central manifold with control system of claim 1, wherein: an underwater robot operating handle, an underwater valve operating opening, an underwater valve identifier, a manifold installation direction identifier, a corrosion monitoring point, a manifold weight identifier, a first door opening structure corresponding to the first router position, a second door opening structure opposite to the second underwater router position, and a third door opening structure corresponding to the control module are arranged on the manifold top plate.
5. The subsea central manifold with control system of claim 1, wherein: the underwater multi-path hydraulic joint is provided with two high-pressure hydraulic pipelines, two low-pressure hydraulic pipelines, three methanol pipelines, a chemical agent injection pipeline and a standby pipeline, and the two low-pressure hydraulic pipelines are connected with the control module.
6. The subsea central manifold with control system of claim 1, wherein: the production pipeline comprises a production main pipe, a first underwater ball valve and a third underwater ball valve which are respectively arranged at two ends of the production main pipe, two bent pipes which are respectively connected with the first underwater ball valve and the third underwater ball valve, and a first underwater connector and a third underwater connector which are respectively arranged at the end parts of the two bent pipes, wherein the first underwater connector is connected with a second submarine pipeline terminal device through a third underwater jumper pipe.
7. The subsea central manifold with control system of claim 6, wherein: the production reserved pipeline comprises a second underwater ball valve arranged at the end part of the production main pipe close to the production main pipe, a first elbow connected with the second underwater ball valve, a first straight pipe connected with the first elbow, and a second underwater connector connected with the end part of the first straight pipe.
8. The subsea central manifold with control system of claim 6, wherein: the production branch pipeline comprises a ball-blocking tee connected to the production main pipe, a third straight pipe section connected with the ball-blocking tee, a first underwater gate valve connected with the third straight pipe section, a second elbow connected with the first underwater gate valve, a second straight pipe section connected with the second elbow, and a branch pipe underwater connector connected with the end part of the second straight pipe section, wherein the branch pipe underwater connector is connected with the underwater Christmas tree through a first underwater jumper pipe.
9. The subsea central manifold with control system of claim 1, wherein: the ethylene glycol pipeline comprises an ethylene glycol main pipe, a seventh underwater connector connected to the first end of the ethylene glycol main pipe, and a second underwater gate valve connected to the ethylene glycol main pipe, wherein the seventh underwater connector is connected with a first submarine pipeline terminal device through a second underwater jumper pipe; the end parts of the two ethylene glycol reserved pipelines are respectively provided with a fifth underwater connector and a sixth underwater connector; the ethylene glycol branch pipeline comprises a first reducing tee joint arranged on the ethylene glycol main pipe, a sixth straight pipe section connected with the first reducing tee joint, a third underwater gate valve connected with the sixth straight pipe section, a fifth straight pipe section connected with the third underwater gate valve, a fourth straight pipe section connected with the fifth straight pipe section and a fourth underwater connector connected with the end part of the fourth straight pipe section.
10. The subsea central manifold with control system of claim 1, wherein: the emptying pipeline comprises an emptying main pipe and an eighth underwater connector connected to the first end of the emptying main pipe; the emptying branch pipeline comprises a tee joint arranged on the emptying main pipe, an eighth straight pipe section connected with the tee joint, a fourth underwater gate valve connected with the eighth straight pipe section, a seventh straight pipe section connected with the fourth underwater gate valve, and a reducer union connected with the end part of the seventh straight pipe section.
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| CN202110245951.5A CN113062708A (en) | 2021-03-05 | 2021-03-05 | Underwater central manifold with control system |
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| CN202110245951.5A CN113062708A (en) | 2021-03-05 | 2021-03-05 | Underwater central manifold with control system |
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| CN113863901A (en) * | 2021-08-10 | 2021-12-31 | 海洋石油工程股份有限公司 | Method for building functional loop of underwater high-integrity pressure protection device |
| CN113898324A (en) * | 2021-09-30 | 2022-01-07 | 中海石油(中国)有限公司 | Protection system and method for underwater production under seabed mud surface |
| CN113982541A (en) * | 2021-08-10 | 2022-01-28 | 海洋石油工程股份有限公司 | Independently become high integrality pressure protection device under water of sled |
| CN114458251A (en) * | 2021-12-29 | 2022-05-10 | 海洋石油工程股份有限公司 | Underwater pressurization manifold device |
| CN115405264A (en) * | 2022-06-02 | 2022-11-29 | 海洋石油工程股份有限公司 | Double-riser bottom gas injection system for deepwater oil and gas field |
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| CN115405264A (en) * | 2022-06-02 | 2022-11-29 | 海洋石油工程股份有限公司 | Double-riser bottom gas injection system for deepwater oil and gas field |
| CN115405264B (en) * | 2022-06-02 | 2024-02-09 | 海洋石油工程股份有限公司 | Double-riser bottom gas injection system for deep water oil-gas field |
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