CN113715969B - Shuttle tanker dynamic positioning method - Google Patents
Shuttle tanker dynamic positioning method Download PDFInfo
- Publication number
- CN113715969B CN113715969B CN202111115119.XA CN202111115119A CN113715969B CN 113715969 B CN113715969 B CN 113715969B CN 202111115119 A CN202111115119 A CN 202111115119A CN 113715969 B CN113715969 B CN 113715969B
- Authority
- CN
- China
- Prior art keywords
- shuttle
- tanker
- fpso
- area
- floating production
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B49/00—Arrangements of nautical instruments or navigational aids
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a method for dynamically positioning a shuttle tanker, which comprises the following steps: determining the position of an offshore floating production oil storage and discharge device; defining an approach area: the sector area with the central angle of 56-64 degrees is defined as a safety adjustment area for position adjustment of the shuttle tanker, and the sector area with the central angle of 88-92 degrees is defined and is positioned outside the safety adjustment area as an attempt adjustment area; the shuttle tanker is driven into the access area; the shuttle oil wheel is connected with the pull-back riding wheel; detecting marine environmental parameters; aligning the floating production oil storage and discharge device; moving to a designated position; and positioning the shuttle tanker. The positioning method can effectively avoid the phenomena of serious consequences such as touch, oil spilling pollution, even damage to a platform or a ship, and the like; this patent is risk prevention and control, has marked out safe adjustment district and attempt adjustment district with the region that will approach, in the actual position regulation and control operation process to shuttle tanker, can greatly reduced dynamic positioning's risk.
Description
Technical Field
The invention relates to a method for positioning oil transportation of an offshore tanker, in particular to a method for dynamically positioning a shuttle tanker.
Background
About 71% of the ocean is a human resource and energy treasury. Based on incomplete statistics, 1350 billions of oil and 140 trillion cubic natural gas have been identified in the ocean. China also has rich ocean resources. The estimated oil is about 240 hundred million tons, and the estimated natural gas resource amount is 14 trillion cubes. With further enlargement of offshore oil and gas exploration and exploitation in China, more petroleum and natural gas come from offshore petroleum terminals in the future.
Shuttle tankers, which are specialized tankers designed to transport oil to and from offshore fields and land. Because the offshore terminal oil transfer requirement is higher, the model ship is mostly provided with a complex oil loading and unloading system, a dynamic positioning system and a helicopter platform facility, and the manufacturing cost of the model ship is far higher than that of an oil ship with the same tonnage. In the 80 s of the last century, china had built more than 110000 t-class shuttle tankers. Shuttle tankers (Shuttle tankers) are one of the important facilities in offshore oil exploitation systems, belonging to a relatively special, high value added vessel. The cost is far higher than that of the traditional oil tanker.
Because conventional shuttle tankers do not have a DP positioning system, the alternative mooring modes in mooring offshore terminal operations are limited to alongside platforms, single Point Mooring (SPM), multi-point mooring (MPM), turret mooring, FPSO tandem mooring. In open water operation, the method is greatly influenced by external environmental forces including wind, flow, tide, platform fixing modes and the like, has great difficulty and high risk, and can cause touch and oil spilling pollution due to slight carelessness, and even causes serious consequences such as platform or ship damage. Conventional tankers moored offshore terminals are therefore more challenging relative to shuttle tankers.
Disclosure of Invention
The present invention is directed to a method for dynamically positioning a shuttle tanker that solves one or more of the problems of the prior art, and provides at least one of a beneficial choice or creation.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method of dynamically positioning a shuttle tanker comprising the steps of:
s100, determining the position of an oil storage and offloading (FPSO) device for offshore floating production;
s200, defining an approaching area: when the floating production oil storage and discharge device (FPSO) adopts a turret mooring mode, a non-fixed end of the floating production oil storage and discharge device (FPSO) is taken as a center, a sector area with a central angle of 56-64 degrees is defined as a safe adjustment area for position adjustment of the shuttle tanker, a sector area with a central angle of 88-92 degrees is defined, an area outside the safe adjustment area is a trial adjustment area for position adjustment of the shuttle tanker, and an area outside the trial adjustment area is a forbidden adjustment area; when the floating production, storage and unloading device (FPSO) adopts a scattered mooring mode, a cargo oil output device of the floating production, storage and unloading device (FPSO) at sea is taken as a center, and a sector area with a central angle of 118-122 degrees is defined as a safety adjustment area for position adjustment of the shuttle tanker; the sector area with the central angle of 172-176 degrees is defined, the area outside the safety adjustment area is an attempt adjustment area for position adjustment of the shuttle tanker, and the area outside the attempt adjustment area is a forbidden adjustment area;
s300, driving the shuttle tanker into an approaching area: after the shuttle tanker enters the safety adjustment area, the position with the distance of 100m between the shuttle tanker and the floating production oil storage and discharge device is a specific position adjustment point;
s400, connecting the shuttle tanker with the pull-back riding wheel: after the shuttle tanker reaches a specific position adjusting point, the tail part of the shuttle tanker is connected with a pull-back riding wheel through a cable;
s500, detecting marine environment parameters: detecting wave height of sea waves, wind power of sea wind and wind direction;
s600, aligning a floating production oil storage and discharge device (FPSO): starting a pull-back riding wheel, adjusting the lateral pulling angle and power of the pull-back riding wheel to the shuttle tanker according to the wave height of sea waves, the offshore wind power and the wind direction, and continuously adjusting the azimuth of the shuttle tanker under the propulsion power of the shuttle tanker so that the shuttle tanker and a floating production oil storage and offloading device (FPSO) are in the same straight line;
s700, moving to a designated position: the shuttle tanker is moved forward along the line to a position 50m from the Floating Production Storage and Offloading (FPSO);
s800, shuttle tanker positioning: when the floating production oil storage and discharging device (FPSO) adopts a turret mooring mode, the head part of the shuttle oil tanker is connected with the floating production oil storage and discharging device (FPSO) through a cable, and the pull-back riding wheel is connected with the tail part of the shuttle oil tanker, so that the floating production oil storage and discharging device (FPSO), the shuttle oil tanker and the pull-back riding wheel are on the same straight line, the pull-back riding wheel is used for preventing the tail part of the shuttle oil tanker from swinging left and right, and the driving force of the pull-back riding wheel is timely adjusted according to the tension of the cable between the shuttle oil tanker and the floating production oil storage and discharging device (FPSO); when the floating production oil storage and unloading device (FPSO) adopts a scattered mooring mode, the head part of the shuttle oil tanker is connected with the floating production oil storage and unloading device (FPSO) through a cable, two pull-back riding wheels are connected with the tail part of the shuttle oil tanker, one pull-back riding wheel pulls towards the left rear part of the shuttle oil tanker, the other pull-back riding wheel pulls towards the right rear part of the shuttle oil tanker, and the driving force of the two pull-back riding wheels is timely adjusted according to the wind power and wind direction of sea wind and the pull force of the cable between the shuttle oil tanker and the floating production oil storage and unloading device (FPSO) so that the shuttle oil tanker is in a dynamic balance state.
Further, in the step S600, when the floating production, storage and offloading device (FPSO) adopts a spread mooring mode, a bow tug is required to adjust the position of the bow of the shuttle tanker.
Further, in the step S300, heading information and steering rate are provided to the shuttle tanker by a floating production storage and offloading device (FPSO).
Further, in the step S800, the floating production storage and offloading device (FPSO) is further equipped with a hawser for towing the cable off the safety adjustment area, and the hawser is connected between the shuttle tanker and the floating production storage and offloading device (FPSO) when a cable connection is required.
Further, in the step S200, when the floating production, storage and offloading device (FPSO) adopts a turret mooring mode, the safety adjustment area defines a sector area with a central angle of 60 °, and the area outside the safety adjustment area defines a sector area with a central angle of 90 ° and is an attempt adjustment area for position adjustment of the shuttle tanker.
Further, in the step S200, when the floating production, storage and offloading device (FPSO) adopts a dispersed mooring mode, a sector area with a central angle of 120 ° is defined as a safety adjustment area for position adjustment of the shuttle tanker; the area which defines a sector area with the central angle of 174 degrees and is positioned outside the safety adjustment area is an attempted adjustment area for the shuttle tanker to adjust the position.
Further, in step S300, a set of DGPS receiving system is further provided, where the DGPS receiving system includes a GPS base station and a receiver, the GPS base station is installed on a floating production, storage and offloading device (FPSO), the receiver is installed on a shuttle tanker, the GPS base station uses the floating production, storage and offloading device (FPSO) as a fixed point with a constant position, compares a dynamic receiving point of the shuttle tanker with the fixed point, and provides the difference to the GPS receiver to correct the dynamic receiving point, so as to form heading information and a steering rate of the dynamic receiving point, and the receiver is used to receive the heading information and the steering rate sent by the GPS base station when the shuttle tanker is driven into an approach area.
Further, in the step S800, when the floating production storage and offloading device (FPSO) is moored by a turret, the floating production storage and offloading device (FPSO), the shuttle tanker and the pull-back riding wheel drift together around the turret according to the offshore wind direction.
Further, in the step S800, two mooring shipwrecks are arranged on the shuttle tanker, one mooring shipwreck directs the tanker crew to connect the tug and the tanker at the steering platform, and the shuttle tanker moors to perform preparation work; the other moored captain is at the stem of the shuttle tanker, monitors the distance of the shuttle tanker stem to a floating production storage and offloading device (FPSO), and communicates the distance data to the other moored captain of the operator's station.
The invention has the beneficial effects that:
the positioning method can effectively avoid the phenomena of serious consequences such as touch, oil spilling pollution, even damage to a platform or a ship, and the like; this patent is risk prevention and control, has marked out safe adjustment district and attempt adjustment district with the region that will approach, in the actual position regulation and control operation process to shuttle tanker, can greatly reduced dynamic positioning's risk.
Drawings
The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention, and other drawings can be obtained by one skilled in the art without inventive effort from the following figures:
FIG. 1 is a flow chart of the shuttle tanker dynamic positioning of the present invention;
FIG. 2 is a schematic view of the approach area of the FPSO of embodiment 1 of the present invention when moored with a turret;
FIG. 3 is a schematic view of example 1 shuttle tanker after entering the access area;
FIG. 4 is a schematic illustration of example 1 after shuttle tanker positioning;
FIG. 5 is a schematic view of the proximity zone of the FPSO of example 2 of the present invention in a spread mooring mode;
FIG. 6 is a schematic illustration of example 2 shuttle tanker entering an access area;
fig. 7 is a schematic view of example 2 after shuttle tanker positioning.
In the figure: 1. floating Production Storage and Offloading (FPSO); 2. a turret; 3. a safety adjustment area; 4. attempting to adjust the area; 5. shuttle tankers; 6. a GPS base station; 7. a receiver; 8. pulling back the riding wheel; 9. a cable; 10. a cable; 11. a hawser boat; 12. floating Production Storage and Offloading (FPSO); 13. cargo oil output means; 14. a safety adjustment area; 15. attempting to adjust the area; 16. shuttle tankers; 17. a GPS base station; 18. a receiver; 19. pulling back the riding wheel; 20. a cable; 21. a bow tug; 22. a cable.
Detailed Description
In order to better understand the technical solutions of the present invention, the following description will be made in detail with reference to the accompanying drawings and specific embodiments, and it should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper surface", "lower surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "forward rotation", "reverse", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Example 1
As shown in fig. 1, a method for dynamically positioning a shuttle tanker comprises the following steps:
s100, determining the position of an offshore floating production oil storage and offloading device (FPSO), wherein the floating production oil storage and offloading device (FPSO) 1 adopts a turret 2 mooring mode as an example;
s200, defining an approaching area:
as shown in fig. 2, a non-fixed end of a floating production, storage and offloading device (FPSO) 1 is taken as a center, a sector area with a 60-degree central angle a is defined as a safety adjustment area 3 for position adjustment of a shuttle tanker, an area which is located outside the safety adjustment area and is defined as a trial adjustment area 4 for position adjustment of the shuttle tanker, and an area outside the trial adjustment area is a forbidden adjustment area;
s300, driving the shuttle tanker into an approaching area: after the shuttle tanker 5 enters the safety regulation area 3, the position with the distance of 100m between the shuttle tanker and the floating production oil storage and discharge device is a specific position regulation point; the shuttle tanker is provided with heading information and steering rate by a Floating Production Storage and Offloading (FPSO).
The DGPS receiving system comprises a GPS base station 6 and a receiver 7, wherein the GPS base station 6 is arranged on a floating production oil storage and offloading device (FPSO) 1, the receiver 7 is arranged on a shuttle tanker 5, the GPS base station 6 takes the floating production oil storage and offloading device (FPSO) as a fixed point with unchanged position, the dynamic receiving point and the fixed point of the shuttle tanker 5 are compared, the difference is provided for a GPS receiver to correct, the heading information and the steering rate of the dynamic receiving point are formed, and the heading information and the steering rate sent by the GPS base station are received by the receiver in the process that the shuttle tanker enters an approaching area.
S400, connecting the shuttle tanker 5 with the pull-back riding wheel 8: after the shuttle tanker reaches a specific position adjusting point, the tail part of the shuttle tanker 5 is connected with a pull-back riding wheel 8 through a cable 9, as shown in fig. 3;
s500, detecting marine environment parameters: detecting wave height of sea waves, wind power of sea wind and wind direction;
s600, aligning a floating production oil storage and discharge device (FPSO): the pull-back riding wheel 8 is started, the lateral pulling angle and the power of the pull-back riding wheel to the shuttle oil wheel are adjusted according to the wave height of sea waves, the offshore wind power and the wind direction, and meanwhile, the direction of the shuttle oil wheel is continuously adjusted under the propelling power of the shuttle oil wheel, so that the shuttle oil wheel and a floating production oil storage and offloading device (FPSO) are in the same straight line.
S700, moving to a designated position: the shuttle tanker 5 moves forward along the line to a position 50m from the Floating Production Storage and Offloading (FPSO);
s800, shuttle tanker positioning: two mooring captain are arranged on the shuttle tanker, one mooring captain commands a tanker crew to connect the tug and the tanker at the driving platform, and the shuttle tanker moors for preparation; the other moored captain is at the stem of the shuttle tanker, monitors the distance of the shuttle tanker stem to a floating production storage and offloading device (FPSO), and communicates the distance data to the other moored captain of the operator's station. The head of the shuttle oil tanker 5 is connected with a floating production oil storage and offloading device (FPSO) 1 through a cable 10, so that the floating production oil storage and offloading device (FPSO) 1, the shuttle oil tanker 5 and a pull-back riding wheel 8 are on the same straight line, the pull-back riding wheel 8 is used for preventing the tail of the shuttle oil tanker from swinging left and right, and the driving force of the pull-back riding wheel is timely adjusted according to the cable tension between the shuttle oil tanker and the floating production oil storage and offloading device (FPSO). The floating production storage and offloading unit (FPSO), shuttle tanker and pull-back idler together drift around the turret according to the offshore wind direction.
The floating production storage and offloading unit (FPSO) is also equipped with a hawser 11, said hawser 11 being used to pull the cable off the safety regulation zone, the hawser 11 connecting the cable 10 between the shuttle tanker 5 and the floating production storage and offloading unit (FPSO) 1 when a cable connection is required.
Example 2
As shown in fig. 1, a method for dynamically positioning a shuttle tanker comprises the following steps:
s100, determining the position of an offshore floating production oil storage and offloading device (FPSO), wherein the floating production oil storage and offloading device (FPSO) 12 adopts a scattered mooring mode;
s200, defining an approaching area:
as shown in fig. 5, when the floating production, storage and offloading device (FPSO) 12 adopts a dispersed mooring mode, the floating production, storage and offloading device (FPSO) 12 is fixed and is less affected by sea storms, and at this time, a sector area with a central angle C of 120 ° is defined as a safety adjustment area 14 for position adjustment of the shuttle tanker by taking the cargo oil output device 13 of the floating production, storage and offloading device (FPSO) 12 at sea as the center; the sector area with the central angle D of 174 degrees is defined, the area outside the safety adjustment area is an attempt adjustment area 15 for position adjustment of the shuttle tanker, and the area outside the attempt adjustment area is a forbidden adjustment area;
s300, driving the shuttle tanker 16 into an approaching area: after the shuttle tanker enters the safety adjustment area, the position with the distance of 100m between the shuttle tanker and the floating production oil storage and discharge device is a specific position adjustment point; the shuttle tanker is provided with heading information and steering rate by a Floating Production Storage and Offloading (FPSO). The DGPS receiving system comprises a GPS base station 17 and a receiver 18, wherein the GPS base station is arranged on a floating production, storage and oil discharge device (FPSO), the receiver is arranged on a shuttle tanker, the GPS base station takes the floating production, storage and oil discharge device (FPSO) as a fixed point with unchanged position, the dynamic receiving point and the fixed point of the shuttle tanker are compared, the difference is provided for the GPS receiver to correct, the heading information and the steering rate of the dynamic receiving point are formed, and the heading information and the steering rate sent by the GPS base station are received by the receiver in the process that the shuttle tanker is driven into an approaching area.
S400, connecting the shuttle tanker 16 with the pull-back riding wheel 19: after the shuttle tanker reaches a specific position adjusting point, the tail part of the shuttle tanker 16 is connected with a pull-back riding wheel 19 through a cable 20, as shown in fig. 6;
s500, detecting marine environment parameters: detecting wave height of sea waves, wind power of sea wind and wind direction;
s600, aligning a floating production oil storage and discharge device (FPSO): starting a pull-back riding wheel 19, adjusting the lateral pulling angle and power of the pull-back riding wheel to the shuttle tanker according to the wave height of sea, the offshore wind power and the wind direction, and continuously adjusting the azimuth of the shuttle tanker under the propelling power of the shuttle tanker so that the shuttle tanker and a floating production oil storage and offloading device (FPSO) are in the same straight line; the fore of the shuttle tanker equipped with the fore tug 21 is adjusted in position.
S700, moving to a designated position: the shuttle tanker is moved forward along the line to a position 50m from the Floating Production Storage and Offloading (FPSO);
s800, shuttle tanker positioning: the head of the shuttle tanker 16 is connected with a floating production storage and offloading device (FPSO) 12 through a cable 22, two pull-back riding wheels 19 are connected with the tail of the shuttle tanker 16, one pull-back riding wheel 19 pulls towards the left rear of the shuttle tanker 16, the other pull-back riding wheel 19 pulls towards the right rear of the shuttle tanker, and the driving force of the two pull-back riding wheels is timely adjusted according to the wind power and wind direction of sea wind and the pull force of the cable between the shuttle tanker and the floating production storage and offloading device (FPSO), so that the shuttle tanker is in a dynamic balance state, as shown in figure 7.
Example 3
As shown in fig. 1, a method for dynamically positioning a shuttle tanker comprises the following steps:
s100, determining the position of an oil storage and offloading (FPSO) device for offshore floating production;
s200, defining an approaching area: when the floating production oil storage and discharge device (FPSO) adopts a turret mooring mode, a non-fixed end of the floating production oil storage and discharge device (FPSO) is taken as a center, a sector area with a central angle of 56 degrees is defined as a safe adjustment area for position adjustment of the shuttle tanker, a sector area with a central angle of 88 degrees is defined, an area outside the safe adjustment area is a trial adjustment area for position adjustment of the shuttle tanker, and an area outside the trial adjustment area is a forbidden adjustment area; when the floating production, storage and unloading device (FPSO) adopts a scattered mooring mode, a cargo oil output device of the floating production, storage and unloading device (FPSO) at sea is taken as a center, and a sector area with a central angle of 118 degrees is defined as a safety adjustment area for position adjustment of the shuttle tanker; the method comprises the steps that a sector area with the central angle of 172 degrees is defined, an area outside a safety adjustment area is an attempted adjustment area for position adjustment of the shuttle tanker, and an area outside the attempted adjustment area is a forbidden adjustment area;
s300, driving the shuttle tanker into an approaching area: after the shuttle tanker enters the safety adjustment area, the position with the distance of 100m between the shuttle tanker and the floating production oil storage and discharge device is a specific position adjustment point;
s400, connecting the shuttle tanker with the pull-back riding wheel: after the shuttle tanker reaches a specific position adjusting point, the tail part of the shuttle tanker is connected with a pull-back riding wheel through a cable;
s500, detecting marine environment parameters: detecting wave height of sea waves, wind power of sea wind and wind direction;
s600, aligning a floating production oil storage and discharge device (FPSO): starting a pull-back riding wheel, adjusting the lateral pulling angle and power of the pull-back riding wheel to the shuttle tanker according to the wave height of sea waves, the offshore wind power and the wind direction, and continuously adjusting the azimuth of the shuttle tanker under the propulsion power of the shuttle tanker so that the shuttle tanker and a floating production oil storage and offloading device (FPSO) are in the same straight line;
s700, moving to a designated position: the shuttle tanker is moved forward along the line to a position 50m from the Floating Production Storage and Offloading (FPSO);
s800, shuttle tanker positioning: when the floating production oil storage and discharging device (FPSO) adopts a turret mooring mode, the head part of the shuttle oil tanker is connected with the floating production oil storage and discharging device (FPSO) through a cable, and the pull-back riding wheel is connected with the tail part of the shuttle oil tanker, so that the floating production oil storage and discharging device (FPSO), the shuttle oil tanker and the pull-back riding wheel are on the same straight line, the pull-back riding wheel is used for preventing the tail part of the shuttle oil tanker from swinging left and right, and the driving force of the pull-back riding wheel is timely adjusted according to the tension of the cable between the shuttle oil tanker and the floating production oil storage and discharging device (FPSO); when the floating production oil storage and unloading device (FPSO) adopts a scattered mooring mode, the head part of the shuttle oil tanker is connected with the floating production oil storage and unloading device (FPSO) through a cable, two pull-back riding wheels are connected with the tail part of the shuttle oil tanker, one pull-back riding wheel pulls towards the left rear part of the shuttle oil tanker, the other pull-back riding wheel pulls towards the right rear part of the shuttle oil tanker, and the driving force of the two pull-back riding wheels is timely adjusted according to the wind power and wind direction of sea wind and the pull force of the cable between the shuttle oil tanker and the floating production oil storage and unloading device (FPSO) so that the shuttle oil tanker is in a dynamic balance state.
Example 4
As shown in fig. 1, a method for dynamically positioning a shuttle tanker comprises the following steps:
s100, determining the position of an oil storage and offloading (FPSO) device for offshore floating production;
s200, defining an approaching area: when the floating production oil storage and discharge device (FPSO) adopts a turret mooring mode, a non-fixed end of the floating production oil storage and discharge device (FPSO) is taken as a center, a sector area with a central angle of 64 degrees is defined as a safe adjustment area for position adjustment of the shuttle tanker, a sector area with a central angle of 92 degrees is defined, an area outside the safe adjustment area is a trial adjustment area for position adjustment of the shuttle tanker, and an area outside the trial adjustment area is a forbidden adjustment area; when the floating production, storage and unloading device (FPSO) adopts a scattered mooring mode, a cargo oil output device of the floating production, storage and unloading device (FPSO) at sea is taken as a center, and a sector area with a central angle of 122 degrees is defined as a safety adjustment area for position adjustment of the shuttle tanker; the sector area with 176-degree central angle is defined, the area outside the safety adjustment area is an attempted adjustment area for position adjustment of the shuttle tanker, and the area outside the attempted adjustment area is an prohibited adjustment area;
s300, driving the shuttle tanker into an approaching area: after the shuttle tanker enters the safety adjustment area, the position with the distance of 100m between the shuttle tanker and the floating production oil storage and discharge device is a specific position adjustment point;
s400, connecting the shuttle tanker with the pull-back riding wheel: after the shuttle tanker reaches a specific position adjusting point, the tail part of the shuttle tanker is connected with a pull-back riding wheel through a cable;
s500, detecting marine environment parameters: detecting wave height of sea waves, wind power of sea wind and wind direction;
s600, aligning a floating production oil storage and discharge device (FPSO): starting a pull-back riding wheel, adjusting the lateral pulling angle and power of the pull-back riding wheel to the shuttle tanker according to the wave height of sea waves, the offshore wind power and the wind direction, and continuously adjusting the azimuth of the shuttle tanker under the propulsion power of the shuttle tanker so that the shuttle tanker and a floating production oil storage and offloading device (FPSO) are in the same straight line;
s700, moving to a designated position: the shuttle tanker is moved forward along the line to a position 50m from the Floating Production Storage and Offloading (FPSO);
s800, shuttle tanker positioning: when the floating production oil storage and discharging device (FPSO) adopts a turret mooring mode, the head part of the shuttle oil tanker is connected with the floating production oil storage and discharging device (FPSO) through a cable, and the pull-back riding wheel is connected with the tail part of the shuttle oil tanker, so that the floating production oil storage and discharging device (FPSO), the shuttle oil tanker and the pull-back riding wheel are on the same straight line, the pull-back riding wheel is used for preventing the tail part of the shuttle oil tanker from swinging left and right, and the driving force of the pull-back riding wheel is timely adjusted according to the tension of the cable between the shuttle oil tanker and the floating production oil storage and discharging device (FPSO); when the floating production oil storage and unloading device (FPSO) adopts a scattered mooring mode, the head part of the shuttle oil tanker is connected with the floating production oil storage and unloading device (FPSO) through a cable, two pull-back riding wheels are connected with the tail part of the shuttle oil tanker, one pull-back riding wheel pulls towards the left rear part of the shuttle oil tanker, the other pull-back riding wheel pulls towards the right rear part of the shuttle oil tanker, and the driving force of the two pull-back riding wheels is timely adjusted according to the wind power and wind direction of sea wind and the pull force of the cable between the shuttle oil tanker and the floating production oil storage and unloading device (FPSO) so that the shuttle oil tanker is in a dynamic balance state.
Working principle: compared to shuttle tankers dedicated to platforms, conventional tankers present a greater risk in terms of vessel maneuverability, hold-down capability, or emergency egress when moored to an offshore terminal. The traditional tanker needs to make comprehensive risk assessment before pre-fighting, and risk relief measures are formulated. The positioning method can greatly reduce the risks.
In the method, a safety adjustment area and an attempt adjustment area are marked out in a proximity area for risk prevention and control, and in the process of regulating and controlling the actual position of the shuttle tanker, if the shuttle tanker floats out of the safety adjustment area and enters the attempt adjustment area, if enough space, time and favorable conditions exist, the shuttle tanker can attempt to recover to the safety position; if the shuttle tanker and F (P) SO relative position cannot be restored or have entered the forbidden adjustment zone, the access should be abandoned and the shuttle tanker should be re-accessed from a better direction.
Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction. While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (9)
1. A method of dynamically positioning a shuttle tanker comprising the steps of:
s100, determining the position of an oil storage and offloading (FPSO) device for offshore floating production;
s200, defining an approaching area: when the floating production oil storage and discharge device (FPSO) adopts a turret mooring mode, a non-fixed end of the floating production oil storage and discharge device (FPSO) is taken as a center, a sector area with a central angle of 56-64 degrees is defined as a safe adjustment area for position adjustment of the shuttle tanker, a sector area with a central angle of 88-92 degrees is defined, an area outside the safe adjustment area is a trial adjustment area for position adjustment of the shuttle tanker, and an area outside the trial adjustment area is a forbidden adjustment area; when the floating production, storage and unloading device (FPSO) adopts a scattered mooring mode, a cargo oil output device of the floating production, storage and unloading device (FPSO) at sea is taken as a center, and a sector area with a central angle of 118-122 degrees is defined as a safety adjustment area for position adjustment of the shuttle tanker; the sector area with the central angle of 172-176 degrees is defined, the area outside the safety adjustment area is an attempt adjustment area for position adjustment of the shuttle tanker, and the area outside the attempt adjustment area is a forbidden adjustment area;
s300, driving the shuttle tanker into an approaching area: after the shuttle tanker enters the safety adjustment area, the position with the distance of 100m between the shuttle tanker and the floating production oil storage and discharge device is a specific position adjustment point;
s400, connecting the shuttle tanker with the pull-back riding wheel: after the shuttle tanker reaches a specific position adjusting point, the tail part of the shuttle tanker is connected with a pull-back riding wheel through a cable;
s500, detecting marine environment parameters: detecting wave height of sea waves, wind power of sea wind and wind direction;
s600, aligning a floating production oil storage and discharge device (FPSO): starting a pull-back riding wheel, adjusting the lateral pulling angle and power of the pull-back riding wheel to the shuttle tanker according to the wave height of sea waves, the offshore wind power and the wind direction, and continuously adjusting the azimuth of the shuttle tanker under the propulsion power of the shuttle tanker so that the shuttle tanker and a floating production oil storage and offloading device (FPSO) are in the same straight line;
s700, moving to a designated position: the shuttle tanker is moved forward along the line to a position 50m from the Floating Production Storage and Offloading (FPSO);
s800, shuttle tanker positioning: when the floating production oil storage and discharging device (FPSO) adopts a turret mooring mode, the head part of the shuttle oil tanker is connected with the floating production oil storage and discharging device (FPSO) through a cable, so that the floating production oil storage and discharging device (FPSO), the shuttle oil tanker and the pull-back riding wheel are on the same straight line, the pull-back riding wheel is used for preventing the tail part of the shuttle oil tanker from swinging left and right, and the driving force of the pull-back riding wheel is timely adjusted according to the tension of the cable between the shuttle oil tanker and the floating production oil storage and discharging device (FPSO); when the floating production oil storage and unloading device (FPSO) adopts a scattered mooring mode, the head part of the shuttle oil tanker is connected with the floating production oil storage and unloading device (FPSO) through a cable, two pull-back riding wheels are connected with the tail part of the shuttle oil tanker, one pull-back riding wheel pulls towards the left rear part of the shuttle oil tanker, the other pull-back riding wheel pulls towards the right rear part of the shuttle oil tanker, and the driving force of the two pull-back riding wheels is timely adjusted according to the wind power and wind direction of sea wind and the pull force of the cable between the shuttle oil tanker and the floating production oil storage and unloading device (FPSO) so that the shuttle oil tanker is in a dynamic balance state.
2. The method of shuttle tanker dynamic positioning according to claim 1, wherein: in the step S600, when the floating production, storage and offloading (FPSO) device adopts a dispersed mooring mode, a bow tug is required to adjust the position of the bow of the shuttle tanker.
3. The method of shuttle tanker dynamic positioning according to claim 1, wherein: in the step S300, the shuttle tanker is provided with heading information and steering rate by a floating production storage and offloading device (FPSO).
4. The method of shuttle tanker dynamic positioning according to claim 1, wherein: in step S800, the floating production storage and offloading device (FPSO) is further equipped with a hawser for hauling the cable off the safety regulation area, the hawser being connected between the shuttle tanker and the floating production storage and offloading device (FPSO) when a cable connection is required.
5. The method of shuttle tanker dynamic positioning according to claim 1, wherein: in the step S200, when the floating production, storage and offloading device (FPSO) adopts a turret mooring mode, the safety adjustment area defines a sector area with a central angle of 60 ° and defines a sector area with a central angle of 90 ° and is located outside the safety adjustment area, which is an attempt adjustment area for position adjustment of the shuttle tanker.
6. The method of shuttle tanker dynamic positioning according to claim 1, wherein: in the step S200, when the floating production, storage and offloading device (FPSO) adopts a dispersed mooring mode, a sector area with a central angle of 120 ° is defined as a safety adjustment area for position adjustment of the shuttle tanker; the area which defines a sector area with the central angle of 174 degrees and is positioned outside the safety adjustment area is an attempted adjustment area for the shuttle tanker to adjust the position.
7. A method of dynamically positioning a shuttle tanker according to claim 3, wherein: in step S300, a set of DGPS receiving system is further provided, where the DGPS receiving system includes a GPS base station and a receiver, the GPS base station is installed on a floating production, storage and offloading device (FPSO), the receiver is installed on a shuttle tanker, the GPS base station uses the floating production, storage and offloading device (FPSO) as a fixed point with a unchanged position, compares a dynamic receiving point of the shuttle tanker with the fixed point, and provides the difference to the GPS receiver to correct the difference to form heading information and a steering rate of the dynamic receiving point, and the receiver is used to receive the heading information and the steering rate sent by the GPS base station when the shuttle tanker enters an approach area.
8. The method of shuttle tanker dynamic positioning according to claim 1, wherein: in the step S800, when the floating production storage and offloading device (FPSO) is moored by a turret, the floating production storage and offloading device (FPSO), the shuttle tanker and the pull-back riding wheel drift together around the turret according to the offshore wind direction.
9. The method of shuttle tanker dynamic positioning according to claim 1, wherein: in the step S800, two mooring shipwrecks are arranged on the shuttle tanker, one mooring shipwreck directs the tanker crew to connect the tug and the tanker at the steering platform, and the shuttle tanker moors to prepare for operation; the other moored captain is at the stem of the shuttle tanker, monitors the distance of the shuttle tanker stem to a floating production storage and offloading device (FPSO), and communicates the distance data to the other moored captain of the operator's station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111115119.XA CN113715969B (en) | 2021-09-23 | 2021-09-23 | Shuttle tanker dynamic positioning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111115119.XA CN113715969B (en) | 2021-09-23 | 2021-09-23 | Shuttle tanker dynamic positioning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113715969A CN113715969A (en) | 2021-11-30 |
| CN113715969B true CN113715969B (en) | 2023-06-30 |
Family
ID=78684772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111115119.XA Active CN113715969B (en) | 2021-09-23 | 2021-09-23 | Shuttle tanker dynamic positioning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113715969B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1817736A (en) * | 2006-03-21 | 2006-08-16 | 中国海洋石油总公司 | Flexible connection berthing method and apparatus for transferring oil on sea |
| CN111731442A (en) * | 2020-07-02 | 2020-10-02 | 南通中远海运船务工程有限公司 | Special engineering ship suitable for deep sea crude oil transfer |
| CN112810767A (en) * | 2021-02-08 | 2021-05-18 | 广东工业大学 | Offshore deep hydrodynamic mooring floating traction crude oil pipeline conveying method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003013948A2 (en) * | 2001-08-03 | 2003-02-20 | Fmc Technologies, Inc. | Offloading arrangements for spread moored fpsos |
| NO330616B1 (en) * | 2007-03-20 | 2011-05-30 | Statoil Asa | System for loading hydrocarbons from a floating vessel to an export tanker. |
-
2021
- 2021-09-23 CN CN202111115119.XA patent/CN113715969B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1817736A (en) * | 2006-03-21 | 2006-08-16 | 中国海洋石油总公司 | Flexible connection berthing method and apparatus for transferring oil on sea |
| CN111731442A (en) * | 2020-07-02 | 2020-10-02 | 南通中远海运船务工程有限公司 | Special engineering ship suitable for deep sea crude oil transfer |
| CN112810767A (en) * | 2021-02-08 | 2021-05-18 | 广东工业大学 | Offshore deep hydrodynamic mooring floating traction crude oil pipeline conveying method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113715969A (en) | 2021-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7543543B2 (en) | Floating LNG import terminal and method for docking | |
| CN111731442A (en) | Special engineering ship suitable for deep sea crude oil transfer | |
| CN112810767B (en) | Offshore deep-water power mooring floating traction crude oil pipeline conveying method | |
| CN110877666A (en) | Self-propelled underwater tunnel immersed tube carrying and mounting integrated ship and construction process | |
| AU2014301300B2 (en) | Cargo transfer vessel | |
| US9446825B1 (en) | Self-propelled, catamaran-type, dual-application, semisubmersible ship with hydrodynamic hulls and columns | |
| US20230094823A1 (en) | Disconnectable mooring system | |
| US6485343B1 (en) | Dynamic positioning dock-loading buoy (DPDL-buoy) and method for use of such a DPDL-buoy | |
| CN104890820A (en) | Floating liquefied natural gas production, storage and unloading device adaptive to adverse sea conditions | |
| US10668989B2 (en) | Methods and system relating to positioning a ship to side-by-side configuration alongside a floating offshore storage facility and transferring fluid cargo therebetween | |
| CN113939447A (en) | Separable tower type fork arm mooring system and using method thereof | |
| CN113715969B (en) | Shuttle tanker dynamic positioning method | |
| CN112323715B (en) | Pipe joint transportation method | |
| CN107000816A (en) | The method and system of the goods fluid of sea transfer outside | |
| CN107187554B (en) | Double-body semi-submersible barge for dry towing transportation of semi-submersible drilling platform and operation method | |
| CN100439197C (en) | Large-tonnage Hai-river direct service ship | |
| CN104002931A (en) | U-shaped ocean engineering installation ship and method for installing module on upper portion of conduit frame | |
| CN107618626A (en) | Improved deep water semi-submersible pipe laying crane ship | |
| CA2163726A1 (en) | Method and system for fluid transport between ships | |
| RU2743239C1 (en) | Method of transporting a large iceberg | |
| AU2018232894B2 (en) | A Method for Offshore LNG Transfer from a FLNG Facility to a LNG Carrier | |
| CN208993881U (en) | Supply ensures integrated ship | |
| CN101486375B (en) | Primary and secondary sailing vessel with mobile secondary hull | |
| CN107128459B (en) | Large-scale marine structure semi-submerged ship floating installation | |
| CN111439347B (en) | Self-installation single-upright-column platform and installation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |