EP3019688A1 - Riser flow control - Google Patents
Riser flow controlInfo
- Publication number
- EP3019688A1 EP3019688A1 EP14741974.1A EP14741974A EP3019688A1 EP 3019688 A1 EP3019688 A1 EP 3019688A1 EP 14741974 A EP14741974 A EP 14741974A EP 3019688 A1 EP3019688 A1 EP 3019688A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- slurry
- control means
- riser system
- riser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000002002 slurry Substances 0.000 claims abstract description 54
- 238000005065 mining Methods 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 230000007613 environmental effect Effects 0.000 claims abstract description 6
- 230000011664 signaling Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 21
- 239000012530 fluid Substances 0.000 description 7
- 239000002351 wastewater Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 150000004677 hydrates Chemical class 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/8858—Submerged units
- E02F3/8866—Submerged units self propelled
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/905—Manipulating or supporting suction pipes or ladders; Mechanical supports or floaters therefor; pipe joints for suction pipes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/907—Measuring or control devices, e.g. control units, detection means or sensors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
- E02F7/065—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators mounted on a floating dredger
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/01—Risers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/01—Risers
- E21B17/015—Non-vertical risers, e.g. articulated or catenary-type
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C50/00—Obtaining minerals from underwater, not otherwise provided for
Definitions
- the present invention relates to a deep sea mining method comprising;
- EP2570340 generally relates to a device for capturing fluids lighter than water escaping from an underwater source.
- the device is useful for collecting and temporarily storing oil and/or gas escaping from an out-of-control deep-sea borehole.
- EP2570340 intends to provide an improved device for collecting and temporarily storing fluids rising from an underwater source, in particular with respect to the device's ability to handle fluids containing gas.
- EP2570340 discloses a riser tube having flow restrictors, such as, e.g. choke disks, arranged in its interior for restricting the flow of the fluids.
- gas-containing fluids may be transferred from the seabed to the underwater buffer reservoir, without requiring separation of the gas fraction at the seabed. This simplifies the structure to be deployed over the underwater source.
- the flow restrictors which are preferably arranged at regular intervals along the length of the riser tube, reduce the velocity of the fluid.
- US6412562 relates to electrical submersible well pumps inside a riser. As the production fluids flow up the well, the pressure drops and gases that were in solution become free gases. This invention of US6412562 is able to artificially boost the riser pressure to increase production and force some of the free gases back into solution.
- WO 2010/092145 Al relates to a method for converting hydrates buried in a water bottom into a marketable hydrocarbon composition.
- WO 2010/092145 Al is not concerned with pressure control in a riser, let alone pressure control along the length of a riser. Instead WO 2010/092145 Al seeks to reduce the amount of power required to lift the slurry and provides therefore a slurry lifting assembly comprising a slurry pump, which is actuated by the tailings stream.
- WO2013050138 (A2) relates to a riser system for transporting the slurry from a position adjacent to the seabed to a position adjacent to the sea surface.
- WO2013050138 (A2) aims to provide a riser system which can operate effectively and provides therefore a riser system for transporting the slurry from a position adjacent to the seabed to a position adjacent to the sea surface, the riser system comprising first and second risers; a slurry pump system to transport slurry up one of the risers and a waste water pump system to return waste water down one of the risers; wherein the slurry pump system and the waste water pump system are selectively connectable to each of the risers to allow each riser to be either a slurry riser or a waste water riser.
- WO2013050138 (A2) has for a drawback that gas hydrates entering the system will start dissociating under the influence of the reducing pressure during the assent to the surface. This impedes control of the flow in a riser.
- the invention aims to provide a deep sea mining method having an improved controllability of the slurry flow.
- Another object of the invention is to improve a known deep sea mining method in that a problem associated therewith is at least partly solved.
- Yet another object of the invention is to provide an alternative deep sea mining method.
- Maintaining a higher pressure inside the riser system beneficially adds stability to the slurry flow and reduces creation of free gas from sediments.
- US6412562 distinctively relate to operations concerning an oil- or gas-flow.
- the oil- and gas operations is a different technical field compared with mining operations mainly because of the different flow which imposes different requirements to systems and operations.
- the mining slurry flow differs with a oil or gas flow at least in that the slurry has a ranging density and is inhomogeneous.
- the solid content of the mining slurry is much higher. From system and operation perspective, the oil and gas operations do not require active pumping since the body of water provides an overpressure. Also means in relation to risk of a blow out in a oil and gas system is not relevant for a mining system.
- Deep sea here means seas having a depth of at least 500 meters, preferably at least 1000 meters.
- the method comprises the step measuring the pressure for providing a riser system pressure signal, and controlling the pressure in response to said pressure signal.
- the method comprises controlling the riser system pressure to a predefined riser system pressure threshold. Such a threshold may be dependent on the vertical position in the riser system.
- the maintaining a controlled riser system pressure comprises providing pressure control means .
- the pressure control means may comprise active and/or passive means.
- the pressure control means are selected from restriction, systems of bends, turbines, pumps used as turbines, and pumps.
- a series of pressure control means is provided. This enables to control pressure along the length of the riser system.
- the series of pressure control means is arranged along the length of the riser system for controlling pressure in the riser system. This improves pressure control along the length of the riser system.
- adjacent control means are arranged at a predefined mutual distance. This even more improves pressure control along the length of the riser system
- the method comprises recovering energy from the transported slurry through the pressure control means. This enables to recover possible energy surplus downstream, which surplus has been spend to pressure control upstream.
- the matter may comprise gashydrates.
- a deep sea mining system for use in the method according to the invention, the system comprising;
- an excavating system for excavating matter at a bottom of the body of water - a riser system for transporting a slurry of matter and water from the bottom of a body of water upwards to a slurry processing base, the riser system comprising an adjustable pump means proximate a bottom of a body of water,
- - pressure control means for maintaining a controlled riser system pressure higher than the environmental pressure inside the riser system for avoiding forming or release of gas and expanding of gas contained in the slurry during transporting the slurry
- the deep sea mining system comprises a series of pressure control means arranged along the length of the riser pipe for controlling pressure in the riser system. This improves pressure control along the length of the riser system.
- adjacent control means are arranged at a predefined mutual distance.
- the pressure control means comprise active and/or passive means.
- the pressure control means are selected from restrictor, systems of bends, turbines, pumps used as turbines, and pumps.
- the deep sea mining system comprises;
- the invention further relates to a device comprising one or more of the
- the invention further relates to a method comprising one or more of the characterising features described in the description and/or shown in the attached drawings.
- FIG. 1 in side view a deep sea mining system according to the invention
- fig. 3 a detail of a the mining system of fig. 1. Detailed description of embodiments
- FIG. 1 shows a deep sea mining system 1 for use in a deep sea mining method.
- the mining system 1 comprises a excavating system 7 for excavating matter 2 at a bottom 9 of a body of water 3.
- the excavating system 7 has a boom member provided with a cutting member at its lower end.
- the excavating system 7, may float or be supported by the bottom 9 in a rolling manner.
- the mining system 1 comprises a riser system 4 for transporting a slurry 13 of matter and water from the bottom 9 of a body of water upwards to a slurry processing base 6.
- the riser system 4 comprises an adjustable pump means 11 proximate the bottom 9 of a body of water for pressurized transport of the slurry 13.
- the base 6 is for example a floating vessel (fig. 1) or a floating platform (fig. 2) or a stationary platform (not shown).
- the mining system 1 comprises pressure control means 5a, 5b, 5c, 5d for maintaining a controlled riser system pressure higher than the environmental pressure inside the riser system for avoiding forming of gas and expanding of gas contained in the slurry during transporting the slurry.
- the riser system 4 is provided with a series of pressure control means 5a, 5b, 5c, 5d arranged along the length of the riser system 4 for controlling pressure in the riser system.
- adjacent control means 5a, 5b, 5c, 5d are arranged at a predefined mutual distance d.
- the riser system 4 is a pipe or line which extends from the bottom 9 of the body of water 3 up to the slurry processing base 6 at the water surface 10.
- the pressure control means 5a, 5b, 5c, 5d may be active and/or passive means which take the form of a (not shown) restrictor, systems of bends, turbines, pumps used as turbines, and pumps 12a, 12b schematically shown in fig. 3.
- the deep sea mining system 1 may comprise measuring means (not shown) for measuring the riser system pressure in order to provide a riser system pressure signal, as well as a control unit (not shown) operationally coupled with the measuring means and the pressure control means for controlling the riser system pressure in response to said pressure signal.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2011156A NL2011156C2 (en) | 2013-07-12 | 2013-07-12 | Riser flow control. |
PCT/NL2014/050464 WO2015005782A1 (en) | 2013-07-12 | 2014-07-09 | Riser flow control |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3019688A1 true EP3019688A1 (en) | 2016-05-18 |
Family
ID=49378517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14741974.1A Withdrawn EP3019688A1 (en) | 2013-07-12 | 2014-07-09 | Riser flow control |
Country Status (9)
Country | Link |
---|---|
US (1) | US20160153169A1 (ja) |
EP (1) | EP3019688A1 (ja) |
JP (1) | JP2016528405A (ja) |
KR (1) | KR20160029855A (ja) |
CN (1) | CN105378214A (ja) |
CA (1) | CA2918079A1 (ja) |
NL (1) | NL2011156C2 (ja) |
RU (1) | RU2016104555A (ja) |
WO (1) | WO2015005782A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2964213A1 (en) * | 2015-08-28 | 2017-03-09 | Tetsuzo Nagata | Mineral lifting system and mineral lifting method |
JP6140238B2 (ja) * | 2015-10-07 | 2017-05-31 | 三井造船株式会社 | ガス回収装置及び水底メタンハイドレートからのガス回収方法 |
US10400421B2 (en) | 2016-03-02 | 2019-09-03 | Hydril USA Distribution LLC | Systems and methods for backflushing a riser transfer pipe |
JP6713405B2 (ja) * | 2016-11-11 | 2020-06-24 | 株式会社三井E&Sホールディングス | ガスハイドレート回収方法およびガスハイドレート回収装置 |
JP6713408B2 (ja) * | 2016-11-18 | 2020-06-24 | 株式会社三井E&Sホールディングス | ガスハイドレート回収装置およびガスハイドレート回収方法 |
JP6713409B2 (ja) * | 2016-11-18 | 2020-06-24 | 株式会社三井E&Sホールディングス | ガスハイドレート回収装置およびガスハイドレート回収方法 |
US10519732B2 (en) | 2017-05-30 | 2019-12-31 | Hydril USA Distribution LLC | Mud pump annular friction pressure control system and method |
CN111075450B (zh) * | 2020-01-10 | 2020-12-01 | 中南大学 | 一种深海采矿方法 |
EP4158112A1 (en) * | 2020-05-25 | 2023-04-05 | Wing Marine LLC | Material handling systems and methods |
CN114059611A (zh) * | 2020-09-16 | 2022-02-18 | 沙群 | 一种用于水产养殖的除污清理装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6412562B1 (en) * | 2000-09-07 | 2002-07-02 | Baker Hughes Incorporated | Electrical submersible pumps in the riser section of subsea well flowline |
CN1690360B (zh) * | 2004-04-21 | 2010-05-12 | 中国科学院过程工程研究所 | 一种海底天然气水合物的开采方法及系统 |
CN1776191A (zh) * | 2005-10-31 | 2006-05-24 | 中国科学院广州能源研究所 | 一种天然气体水合物水下注热开采装置 |
US8881843B2 (en) * | 2006-02-09 | 2014-11-11 | Weatherford/Lamb, Inc. | Managed pressure and/or temperature drilling system and method |
US7690135B2 (en) * | 2007-09-23 | 2010-04-06 | Technip France | Deep sea mining riser and lift system |
CN101182771A (zh) * | 2007-12-12 | 2008-05-21 | 中国地质大学(武汉) | 一种海底天然气水合物开采方法及装置 |
EP2226466A1 (en) * | 2009-02-13 | 2010-09-08 | Shell Internationale Research Maatschappij B.V. | Method for producing a marketable hydrocarbon composition from a hydrate deposit buried in the waterbottom |
US20120181041A1 (en) * | 2011-01-18 | 2012-07-19 | Todd Jennings Willman | Gas Hydrate Harvesting |
NL2007158C2 (en) * | 2011-07-21 | 2013-01-22 | Ihc Holland Ie Bv | Pump frame. |
GB2495287B (en) * | 2011-10-03 | 2015-03-11 | Marine Resources Exploration Internat Bv | A riser system for transporting a slurry from a position adjacent to the seabed to a position adjacent to the sea surface |
KR101980221B1 (ko) * | 2011-12-23 | 2019-05-20 | 노틸러스 미네랄즈 퍼시픽 피티 리미티드 | 해저 채광을 위한 분리 가능한 방법 및 시스템 |
-
2013
- 2013-07-12 NL NL2011156A patent/NL2011156C2/en not_active IP Right Cessation
-
2014
- 2014-07-09 EP EP14741974.1A patent/EP3019688A1/en not_active Withdrawn
- 2014-07-09 JP JP2016525317A patent/JP2016528405A/ja active Pending
- 2014-07-09 CN CN201480039774.3A patent/CN105378214A/zh active Pending
- 2014-07-09 RU RU2016104555A patent/RU2016104555A/ru not_active Application Discontinuation
- 2014-07-09 CA CA2918079A patent/CA2918079A1/en not_active Abandoned
- 2014-07-09 KR KR1020167003675A patent/KR20160029855A/ko not_active Application Discontinuation
- 2014-07-09 WO PCT/NL2014/050464 patent/WO2015005782A1/en active Application Filing
- 2014-07-09 US US14/904,636 patent/US20160153169A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CN105378214A (zh) | 2016-03-02 |
CA2918079A1 (en) | 2015-01-15 |
US20160153169A1 (en) | 2016-06-02 |
WO2015005782A1 (en) | 2015-01-15 |
KR20160029855A (ko) | 2016-03-15 |
JP2016528405A (ja) | 2016-09-15 |
RU2016104555A (ru) | 2017-08-17 |
NL2011156C2 (en) | 2015-01-13 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20160111 |
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AX | Request for extension of the european patent |
Extension state: BA ME |
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DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20170111 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20170523 |