CN117163244A - Multifunctional floating production storage and unloading device and construction method thereof - Google Patents

Abstract

The invention relates to the technical field of floating type oil storage and discharge vessels, and discloses a multifunctional floating type production, storage and discharge device and a construction method thereof, wherein the method comprises the following steps: the ship comprises a bottom plate, a main deck, a bow sealing plate, a stern sealing plate and two side plates. According to the multifunctional floating production storage and unloading device and the construction method thereof, a bow section is arranged, a single-point cabin, an inner turret mooring installation piece, an outer turret mooring piece and a multi-point mooring piece are arranged on the bow section, the single-point cabin of the bow section is spatially isolated by adopting an octagonal cabin, a single-point inner turret arrangement space with the maximum diameter of 30 meters is reserved, the inner turret is arranged between the octagonal cabin and a bow building body, the outer turret mooring piece is connected with the FPSO bow section through a rigid arm structure, and the multi-point mooring system is fully arranged on a side board of a ship body, does not occupy a deck space and reserves enough space for the side, so that the FPSO has universality and can be suitable for a plurality of different operation sea areas and sea conditions and various positioning mooring modes.

Description

Multifunctional floating production storage and unloading device and construction method thereof

Technical Field

The invention relates to the technical field of floating type oil storage and discharge vessels, in particular to a multifunctional floating type production, storage and discharge device and a construction method thereof.

Background

FPSO (Floating Production Storage and Offloading) is a floating production, storage and unloading device on the sea integrating production, oil storage and unloading, and the FPSO consists of two parts: the upper assembly and the ship body complete the processing treatment of crude oil; the hull is responsible for storing qualified crude oil, the FPSO receives a mixture of oil, gas, water and the like from a submarine oil well through a submarine oil pipeline, the mixture is processed into qualified crude oil and natural gas, and qualified products are stored in a cabin and are transported to land through a shuttle tanker through a crude oil export system after reaching a certain amount.

However, the conventional floating type oil storage and offloading ship belongs to a customized design, namely, a custom design is developed for a specific sea area and a specific oil and gas field, the design and basic design of the floating type oil storage and offloading ship can be developed after the development mode of the oil and gas field is completely determined, the design period is relatively long, and the batch construction cannot be formed.

Disclosure of Invention

In view of the shortcomings of the prior art, the present invention provides a multifunctional floating production storage and offloading device and method of construction thereof, solving the problems noted in the background above.

The invention provides the following technical scheme: a multifunctional floating production storage and discharge device and a construction method thereof comprise the following steps: the ship comprises a bottom plate, a main deck, a bow sealing plate, a stern sealing plate and two side plates, wherein the main deck is positioned above the bottom plate, the bow sealing plate, the stern sealing plate and the two side plates are all connected to the surfaces of the bottom plate and the main deck, the bottom plate, the two side plates, the bow sealing plate, the stern sealing plate and the main deck are enclosed to form a ship body, a seawater lifting base pipe body is arranged on the ship body, a plurality of plate frame type transverse bulkheads are arranged in the ship body, the plate frame type transverse bulkheads divide the interior of the ship body into a bow section, a stern section and a plurality of cargo hold sections, two plate frame type longitudinal bulkheads are arranged in the ship body, and the two plate frame type longitudinal bulkheads divide a plurality of cargo oil tanks into three cabins;

the two plate-frame-type transverse bulkheads are arranged on the inner wall of the bow section cabin, the two plate-frame-type transverse bulkheads divide the bow section cabin into a single-point cabin and a bow tip cabin, an inner rotating tower mooring installation piece is arranged in the single-point cabin, and an outer rotating tower mooring piece is arranged on the surface of the bow sealing plate;

the seawater lifting base pipe body is arranged on the cargo hold section, the top end of the seawater lifting base pipe body extends to the top of the main deck, and the bottom end of the seawater lifting base pipe body extends to the outside of the turn circle of the bilge of the side board;

the surface of the side board at the stern section is connected with an accessory cabin, the top of the accessory cabin is aligned with the top of the main deck, two propeller cabins are arranged in the stern section, the bottom end of each propeller cabin is provided with a mounting groove, the inner wall of each mounting groove is detachably provided with a propeller body, and a mounting assembly is arranged in each propeller cabin;

the surface of the side plate at the bow section and the surface of the side plate at the bow section are both provided with multipoint mooring pieces.

Preferably, the inner tower mooring installation member is an octagonal cabin, and the octagonal cabin is arranged in the single-point cabin;

the outer turret mooring piece comprises a middle reinforced longitudinal bulkhead and two side reinforced longitudinal bulkheads, wherein the two side reinforced longitudinal bulkheads are connected to the surface of a plate frame type transverse bulkhead, a reinforced transverse bulkhead is arranged between the two side reinforced longitudinal bulkheads, the middle reinforced longitudinal bulkhead is positioned between the two side reinforced longitudinal bulkheads, the reinforced transverse bulkhead and a bow sealing plate are connected to the surface of the middle reinforced longitudinal bulkhead, a connecting plane is arranged on the surface of the bow sealing plate, the height of the connecting plane is larger than 22m, and the width of the connecting plane is larger than 24m;

the multipoint mooring element comprises additional support tanks which are connected to the surface of the side plate, and a plurality of anchor chains are arranged on the two additional support tanks.

Preferably, the reinforcement transverse bulkhead and the two side reinforcement longitudinal bulkheads divide the fore-nose cabin into a first fore-nose cabin, a second fore-nose cabin, an isolation cabin and an empty cabin, the first fore-nose cabin and the second fore-nose cabin are respectively positioned at two sides of the isolation cabin and the empty cabin, the isolation cabin is adjacent to the single-point cabin, a plurality of reinforcement horizontal plates are arranged on the inner walls of the first fore-nose cabin, the second fore-nose cabin and the empty cabin, and a plurality of longitudinal stringers are arranged on the surfaces of each reinforcement horizontal plate.

Preferably, the anchor chains are uniformly distributed on the additional support cabin, the additional support cabin is welded on the surface of the side board, a plurality of reinforcing risers are arranged on the additional support cabin, and the additional support cabin, the anchor chains and the reinforcing risers are all made of high-strength steel.

Preferably, the cargo hold section comprises a hull top section, a hull middle section and a bilge section, the hull middle section is connected to the top of the bilge section, and the hull top section is connected to the top of the hull middle section;

the seawater lifting base pipe body comprises a first lifting pipe, a second lifting pipe and a third lifting pipe, wherein the first lifting pipe and the third lifting pipe are respectively connected to the top end and the bottom end of the second lifting pipe, and the first lifting pipe, the second lifting pipe and the third lifting pipe are respectively arranged in the ship body top section, the ship body middle section and the ship body bilge section.

Preferably, the installation component includes two rope haulers and two hoist ropes, two the mount is all installed to the inner wall in propeller cabin, two rope haulers are installed in the inside in propeller cabin through the mount respectively, the one end of hoist rope is connected on rope hauler, the other end of hoist rope extends to the outside in propeller cabin.

Preferably, the surface of stern shrouding corresponds the surface of two propeller cabins and all is equipped with the lifting hole, the inner wall of lifting hole is provided with first haulage cable, the one end and the inner wall connection of lifting hole of first haulage cable, the other end of first haulage cable is provided with first shackle, one of them one the one end of hoist cable is connected with the second haulage cable, second haulage cable one end is provided with the second shackle, the table of propeller body is provided with the lug, first shackle and second shackle all lock joint on the lug.

Preferably, the top of the main deck of the bow section is provided with a bow body and a bow deck, the bow deck is arranged on the bow body, the bow sealing plates extend to the bow deck, two separation longitudinal bulkheads and two separation transverse bulkheads are respectively arranged in the single-point cabin, two sides of each separation longitudinal bulkhead are respectively connected with the surfaces of the two plate frame transverse bulkheads, two sides of each separation transverse bulkhead are respectively connected with the surfaces of the octagonal cabin and the separation longitudinal bulkhead, a ballast water cabin is formed between the separation longitudinal bulkhead and the side board, the separation transverse bulkhead separates the space between the octagonal cabin and the separation longitudinal bulkhead into a chemical storage cabin and a reserved cabin, and the inner wall of the chemical storage cabin is provided with a polyurethane coating.

Preferably, the hull 333m has a hull height of 32.8m, a hull body width of 60m, and the bottom plate and the main deck are of a single-layer plate structure, and the two side plates are of a double-layer plate structure.

The construction method of the multifunctional floating production storage and unloading device comprises the following steps:

step one: the ship body is built by five islands of a stern section, a 1-7 cargo hold section ring section, a 8-10 cargo hold section ring section, a 11-12 cargo hold section ring section, a 13-15 cargo hold section ring section and a bow section, and a plate frame type longitudinal bulkhead corresponds to the stern section, the cargo hold section 1-15 and the bow section;

step two: building a bow section, namely building a bottom plate of the bow section, and carrying out sequential loading of all layers of sections from bottom to top;

step three: the method comprises the steps of building a cargo hold section, wherein the cargo hold section is built by 13 ring sections, each ring section is built by three sections in a longitudinal direction, each ring section is built by three layers of a ship top section, a ship middle section and a ship bilge section, and a plate frame type transverse bulkhead corresponds to the ship top section, the ship middle section and the ship bilge section to be layered;

the method comprises the steps of processing a cargo hold section provided with seawater lifting base pipe bodies, taking three lifting pipe fragments for each seawater lifting base pipe body, uniformly and sheet-type processing and rolling three lifting pipe fragments to form coiled plates, welding butt joint ends to form a first lifting pipe, a second lifting pipe and a third lifting pipe respectively, pre-positioning the first lifting pipe, the second lifting pipe and the third lifting pipe, placing the first lifting pipe, the second lifting pipe and the third lifting pipe on a jig frame for butt joint, then carrying out laser positioning, and ensuring that concentricity of the first lifting pipe, the second lifting pipe and the third lifting pipe is accurate, thus the complete seawater lifting base pipe body can be formed;

respectively pre-burying a first lifting pipe, a second lifting pipe and a third lifting pipe into the top section of the ship body, the middle section of the ship body and the bilge section of the ship body;

step four: constructing a stern section, constructing from a bow section bottom plate, and carrying out sequential loading of all layers of sections from bottom to top;

step five: the method comprises the steps of performing butt joint fixation after the construction of five islands of a stern section, a 1-7 cargo hold section ring section, an 8-10 cargo hold section ring section, an 11-12 cargo hold section ring section, a 13-15 cargo hold section ring section and a bow section;

step six: polyurethane coating is coated on inner walls of chemical storage cabin and seawater lifting base pipe body

Step seven: two gangway side plate installation multipoint moorings;

step eight: the propeller body is mounted into a mounting groove of the propeller cabin.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, a bow section is arranged, a single-point cabin, an inner turret mooring installation piece, an outer turret mooring piece and a multi-point mooring piece are arranged on the bow section, the single-point cabin of the bow section is spatially isolated by adopting an octagonal cabin, a single-point inner turret arrangement space with the maximum diameter of 30 meters is reserved, the inner turret is arranged between the octagonal cabin and a bow building body, the outer turret mooring piece is connected with a connecting plane, the single-point type is connected with the FPSO bow section through a rigid arm structure, the multi-point mooring system is all arranged on a side plate of a ship body, the additional support cabin is used as an empty cabin, the bow building deck or a main deck surface does not need to be provided with the anchor chain cabin, and enough space is not occupied for the side plate surface, so that the FPSO has universality and can be suitable for a plurality of different operation sea condition and various positioning mooring modes.

2. According to the invention, the first lifting pipe, the second lifting pipe and the third lifting pipe are arranged, three lifting pipe fragments are taken out from each seawater lifting base pipe body, the three lifting pipe fragments are processed into coiled plates in a uniform sheet mode, the butt joint ends are welded to form the first lifting pipe, the second lifting pipe and the third lifting pipe respectively, then the first lifting pipe, the second lifting pipe and the third lifting pipe are placed on the jig frame for butt joint, and then laser positioning is carried out, so that concentricity of the first lifting pipe, the second lifting pipe and the third lifting pipe is accurate, a complete seawater lifting base pipe body can be formed, a single lifting pipe weld joint is short, welding precision of the single lifting pipe weld joint is easy to control, and deformation of the welded seawater lifting base pipe body is avoided.

3. According to the invention, the auxiliary cabin is arranged, the top of the auxiliary cabin is aligned with the top of the main deck, the stern section adopts the side-protruding auxiliary structure, so that the main deck arrangement space can be formed, the defect of insufficient main deck area is overcome, and the main deck area is increased under the condition that the ship shape at the waterline is not changed, namely the ship mooring load is not increased.

Drawings

FIG. 1 is a schematic view of the structure of the plate frame type transverse bulkhead and the plate frame type longitudinal bulkhead of the invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic side view of the present invention;

FIG. 4 is an enlarged view of the structure of the present invention at the location of the bow section of FIG. 2;

FIG. 5 is a schematic view of the structure of the single-point, fore-nose and octagonal compartments of the present invention;

FIG. 6 is a schematic view of the reinforcement horizontal panel and longitudinal stringers of the present invention;

FIG. 7 is a schematic view of the hull top section and first riser construction of the present invention;

FIG. 8 is a schematic view of a midship section and a second riser configuration of the invention;

FIG. 9 is a schematic view of the internal structure of a section of the hull of the present invention;

FIG. 10 is a schematic view of the bilge section and third riser of the present invention;

FIG. 11 is an enlarged view of the stern section of FIG. 1 according to the present invention;

FIG. 12 is an enlarged schematic view of the stern section of FIG. 3 according to the present invention;

FIG. 13 is a schematic view of a lifting hole structure according to the present invention;

FIG. 14 is a schematic side cross-sectional view of a propeller compartment of the present invention;

FIG. 15 is a schematic view of a forward section of a propeller housing of the present invention;

FIG. 16 is a schematic view of the first traction cable and the second traction cable according to the present invention;

fig. 17 is a schematic view of the structure of the first shackle, the second shackle and the lifting lug of the present invention.

In the figure: 1. a bottom plate; 2. a main deck; 3. a bow sealing plate; 4. a stern sealing plate; 5. a side plate; 6. a seawater lifting base pipe body; 61. a first riser; 62. a second riser; 63. a third riser; 7. a plate frame type transverse bulkhead; 8. a bow section; 9. a stern section; 10. a cargo hold section; 101. a hull top section; 102. a middle section of the hull; 103. a bilge section of the hull; 11. a plate frame type longitudinal bulkhead; 12. a single point cabin; 13. a fore-tip cabin; 14. an octagonal cabin; 151. middle reinforced longitudinal bulkheads; 152. a side reinforced longitudinal bulkhead; 153. reinforcing the transverse bulkhead; 154. a connection plane; 16. an accessory cabin; 17. a propeller compartment; 18. a propeller body; 191. rope traction machine; 192. a sling; 201. an additional support compartment; 202. an anchor chain; 21. a first bow cabin; 22. a second bow cabin; 23. an isolation cabin; 24. an empty cabin; 25. reinforcing a horizontal plate; 26. longitudinal stringers; 27. reinforcing the riser; 28. a hoisting hole; 29. a first traction cable; 30. a first shackle; 31. a second traction cable; 32. a second shackle; 33. lifting lugs; 34. a bow body; 35. a bow deck; 36. a dividing longitudinal bulkhead; 37. a dividing transverse bulkhead; 38. a ballast water tank; 39. a chemical storage compartment; 40. and reserving a cabin.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-3, a multifunctional floating production storage and offloading apparatus and method of constructing the same, comprising: the ship comprises a bottom plate 1, a main deck 2, a bow sealing plate 3, a stern sealing plate 4 and two side plates 5, wherein the main deck 2 is positioned above the bottom plate 1, the bow sealing plate 3, the stern sealing plate 4 and the two side plates 5 are connected to the surfaces of the bottom plate 1 and the main deck 2, the bottom plate 1, the two side plates 5, the bow sealing plate 3, the stern sealing plate 4 and the main deck 2 are enclosed to form a ship body, a seawater lifting base pipe body 6 is arranged on the ship body, a plurality of plate frame type transverse bulkheads 7 are arranged in the ship body, the plurality of plate frame type transverse bulkheads 7 divide the interior of the ship body into a bow section 8, a stern section 9 and a plurality of cargo hold sections 10, two plate frame type longitudinal bulkheads 11 are arranged in the ship body, and the two plate frame type longitudinal bulkheads 11 divide a plurality of cargo oil tanks into three cabins;

the two plate frame type transverse bulkheads 7 are arranged on the inner wall of a cabin of the bow section 8, the two plate frame type transverse bulkheads 7 divide the cabin of the bow section 8 into a single-point cabin 12 and a bow tip cabin 13, an inner rotating tower mooring installation piece is arranged in the single-point cabin 12, and an outer rotating tower mooring piece is arranged on the surface of the bow sealing plate 3;

the seawater lifting base pipe body 6 is arranged on the cargo hold section 10, the top end of the seawater lifting base pipe body 6 extends to the top of the main deck 2, and the bottom end of the seawater lifting base pipe body 6 extends to the outside of the turn circle of the bilges of the side boards 5;

the surface of the side board 5 at the stern section 9 is connected with an accessory cabin 16, the top of the accessory cabin 16 is aligned with the top of the main deck 2, two propeller cabins 17 are arranged in the stern section 9, the bottom end of each propeller cabin 17 is provided with a mounting groove, the inner wall of each mounting groove is detachably provided with a propeller body 18, and a mounting assembly is arranged in each propeller cabin 17; the top of the accessory cabin 16 is aligned with the top of the main deck 2, the stern section 9 adopts an accessory structure with outboard protrusions to form a main deck 2 arrangement space, the defect of insufficient area of the main deck 2 is overcome, and the area of the main deck 2 is increased under the condition that the shape of the ship body at the waterline is not changed, namely the mooring load of the ship body is not increased

Both the surface of the side plate 5 at the bow section 8 and the surface of the side plate 5 at the bow section 8 are provided with multipoint moorings.

Referring to fig. 4-5, the inner turret mooring installation is an octagonal cabin 14, the octagonal cabin 14 is disposed inside the single-point cabin 12, the outer turret mooring comprises a middle reinforcing longitudinal bulkhead 151 and two side reinforcing longitudinal bulkheads 152, both side reinforcing longitudinal bulkheads 152 are connected to the surface of the plate-frame-type transverse bulkhead 7, a reinforcing transverse bulkhead 153 is disposed between the two side reinforcing longitudinal bulkheads 152, the middle reinforcing longitudinal bulkhead 151 is disposed between the two side reinforcing longitudinal bulkheads 152, both reinforcing transverse bulkhead 153 and the bow sealing plate 3 are connected to the surface of the middle reinforcing longitudinal bulkhead 151, the surface of the bow sealing plate 3 is provided with a connection plane 154, the height of the connection plane 154 is greater than 22m, the width of the connection plane 154 is greater than 24m, the multi-point mooring comprises an additional support cabin 201, the additional support cabin 201 is connected to the surface of the side plate 5, the two additional supporting cabins 201 are respectively provided with a plurality of anchor chains 202, the reinforcing transverse bulkhead 153 and the two side reinforcing longitudinal bulkheads 152 divide the fore-and-aft cabin 13 into a first fore cabin 21, a second fore cabin 22, an isolation cabin 23 and an empty cabin 24, the first fore cabin 21 and the second fore cabin 22 are respectively positioned at two sides of the isolation cabin 23 and the empty cabin 24, the isolation cabin 23 is adjacent to the single-point cabin 12, the inner walls of the first fore cabin 21, the second fore cabin 22 and the empty cabin 24 are provided with a plurality of reinforcing horizontal plates 25, the surface of each reinforcing horizontal plate 25 is provided with a plurality of longitudinal stringers 26, the anchor chains 202 are uniformly distributed on the additional supporting cabins 201, the additional supporting cabins 201 are welded on the surface of the side boards, the additional supporting cabins 201 are provided with a plurality of reinforcing risers 27, and the additional supporting cabins 201, the anchor chains 202 and the reinforcing risers 27 are all made of high-strength steel.

Wherein, the top of the main deck 2 of the fore section 8 is provided with a fore body 34 and a fore deck 35, the fore deck 35 is installed on the fore body 34, the fore sealing plate 3 extends to the fore deck 35, the inside of the single-point cabin 12 is respectively provided with two separating longitudinal bulkheads 36 and two separating transverse bulkheads 37, two sides of each separating longitudinal bulkhead 36 are respectively connected with the surfaces of two plate-frame-type transverse bulkheads 7, two sides of each separating transverse bulkhead 37 are respectively connected with the surfaces of the octagonal cabin 14 and the separating longitudinal bulkheads 36, a ballast water cabin 38 is formed between the separating longitudinal bulkheads 36 and the side boards, the separating transverse bulkheads 37 divide the space between the octagonal cabin 14 and the separating longitudinal bulkheads 36 into a chemical storage cabin 39 and a reserved cabin 40, and the inner wall of the chemical storage cabin 39 is provided with a polyurethane coating.

Referring to fig. 7-10, the cargo hold section 10 includes a hull top section 101, a hull middle section 102 and a hull bilge section 103, the hull middle section 102 is connected to the top of the hull bilge section 103, the hull top section 101 is connected to the top of the hull middle section 102, the sea water lifting base pipe 6 includes a first lifting pipe 61, a second lifting pipe 62 and a third lifting pipe 63, the first lifting pipe 61 and the third lifting pipe 63 are connected to the top and bottom of the second lifting pipe 62, the first lifting pipe 61, the second lifting pipe 62 and the third lifting pipe 63 are respectively installed in the hull top section 101, the hull middle section 102 and the hull bilge section 103, the first lifting pipe 61, the second lifting pipe 62 and the third lifting pipe 63 are respectively installed, each sea water lifting base pipe 6 is divided into three lifting pipe pieces, the three lifting pipe pieces are uniformly processed and molded, the butt ends are welded to form the first lifting pipe 61, the second lifting pipe 62 and the third lifting pipe 63, the first lifting pipe 61, the second lifting pipe 62 and the third lifting pipe 62 are respectively, the butt welding seam of the first lifting pipe 61, the second lifting pipe 62 and the third lifting pipe 63 is accurately controlled, the welding accuracy of the welding base pipe 6 is ensured, and the welding accuracy of the welding is easy, and the welding of the base pipe is avoided.

Referring to fig. 11-17, the installation assembly includes two rope tractors 191 and two slings 192, the inner walls of the two propeller cabins 17 are all provided with fixing frames, the two rope tractors 191 are respectively installed in the propeller cabins 17 through the fixing frames, one ends of the slings 192 are connected to the rope tractors 191, the other ends of the slings 192 extend to the outside of the propeller cabins 17, the surface of the stern seal plate 4 is provided with lifting holes 28 corresponding to the surfaces of the two propeller cabins 17, the inner walls of the lifting holes 28 are provided with first traction ropes 29, one ends of the first traction ropes 29 are connected with the inner walls of the lifting holes 28, the other ends of the first traction ropes 29 are provided with first shackles 30, one end of one sling 192 is connected with a second traction rope 31, one end of the second traction rope 31 is provided with a second shackle 32, the surface of the propeller body 18 is provided with lifting lugs 33, and the first shackles 30 and the second shackles 32 are both buckled on the lifting lugs 33.

The ship body 333m, the ship body height 32.8m, the ship body width 60m, the bottom plate 1 and the main deck 2 are of a single-layer plate structure, and the two side plates 5 are of a double-layer plate structure.

The construction method of the multifunctional floating production storage and unloading device comprises the following steps:

step one: the ship body is built by five islands of a stern section 9, a 1-7 cargo hold section 10 ring section, an 8-10 cargo hold section 10 ring section, an 11-12 cargo hold section 10 ring section, a 13-15 cargo hold section 10 ring section and a bow section 8, and a plate frame type longitudinal bulkhead 11 is segmented corresponding to the stern section 9, the cargo hold section 10-15 and the bow section 8;

step two: building a bow section 8, constructing a bottom plate 1 of the bow section 8, and carrying out the whole sections of each layer in sequence from bottom to top;

step three: constructing a cargo hold section 10, wherein the cargo hold section 10 is constructed by 13 ring sections, each ring section is constructed by three sections in a longitudinal direction, each ring section is constructed by three layers of a ship top section 101, a ship middle section 102 and a ship bilge section 103, and a plate frame type transverse bulkhead 7 is correspondingly layered by the ship top section 101, the ship middle section 102 and the ship bilge section 103;

wherein, the cargo hold section 10 provided with the seawater lifting base pipes 6 is processed, three lifting pipes are divided into pieces, each seawater lifting base pipe 6 is divided into three pieces, sheet-type processing coiled plates are uniformly processed and formed, butt joint ends are welded to form a first lifting pipe 61, a second lifting pipe 62 and a third lifting pipe 63 respectively, the first lifting pipe 61, the second lifting pipe 62 and the third lifting pipe 63 are pre-positioned, the first lifting pipe 61, the second lifting pipe 62 and the third lifting pipe 63 are placed on a jig frame for butt joint, and then laser positioning is performed, so that the concentricity of the first lifting pipe 61, the second lifting pipe 62 and the third lifting pipe 63 is ensured to be accurate, and the complete seawater lifting base pipe 6 can be formed;

embedding the first riser 61, the second riser 62 and the third riser into the interior of the hull top section 101, the midship section 102 and the bilge section 103, respectively;

step four: the stern section 9 is built, the bottom plate 1 of the stern section 8 is built, and all layers of total sections are carried in sequence from bottom to top;

step five: the stern section 9, the 1-7 cargo hold section 10 ring section, the 8-10 cargo hold section 10 ring section, the 11-12 cargo hold section 10 ring section, the 13-15 cargo hold section 10 ring section and the bow section 8 five islands are constructed and then are subjected to butt joint fixation;

step six: the chemical storage compartment 39 and the inner wall of the seawater lifting base pipe body 6 are coated with a polyurethane coating

Step seven: two gangway panels 5 are provided with multipoint moorings;

step eight: the propeller body 18 is mounted into the mounting groove of the propeller housing 17.

The multifunctional floating production storage and unloading device is provided with a single-point cabin 12, an inner turret mooring installation part, an outer turret mooring part and a multi-point mooring part on a bow section 8, the single-point cabin 12 of the bow section 8 is spatially isolated by adopting an octagonal cabin 14, a single-point inner turret arrangement space with the maximum diameter of 30 meters is reserved, the inner turret is arranged between the octagonal cabin 14 and a bow building body 34, a connecting plane 154 of the outer turret mooring part is connected with the FPSO bow section 8 through a rigid arm structure, the surfaces of a side board 5 at the bow section 8 and the side board 5 at the bow section 8 are respectively provided with the multi-point mooring part, the multi-point mooring system is all installed on the side board 5 of a ship body, an additional supporting cabin 201 is used as an empty cabin 24 and can be used as an anchor chain 202 cabin, an anchor chain 202 cabin is not required to be arranged on the surface of a bow deck 35 or a main deck 2, the deck space is not occupied, enough space is reserved for the side, the FPSO type floating oil storage and offloading ship has universality, a plurality of different operation sea area sea conditions and various positioning mooring modes can be applied, the surface of the propeller body 18 is provided with lifting lugs 33, the first shackle 30 and the second shackle 32 are both buckled on the lifting lugs 33, the first traction cable 29 is connected to the propeller body 18 through the first shackle 30, the second traction cable 31 is connected to the propeller body 18 through the second shackle 32, the other end of the second traction cable 31 is connected with a sling 192, the propeller body 18 is hoisted by the floating sling and the wharf sling, the position of the propeller body 18 is conveniently adjusted by the first traction cable 29 and the second traction cable 31, and the position of the multifunctional floating production oil storage and offloading device can be adjusted by the propeller body 18.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a multi-functional floating production stores up and unloads device which characterized in that includes: the ship comprises a bottom plate (1), a main deck (2), a bow sealing plate (3), a stern sealing plate (4) and two side plates (5), wherein the main deck (2) is positioned above the bottom plate (1), the bow sealing plate (3), the stern sealing plate (4) and the two side plates (5) are connected to the surfaces of the bottom plate (1) and the main deck (2), the bottom plate (1), the two side plates (5), the bow sealing plate (3), the stern sealing plate (4) and the main deck (2) are enclosed to form a ship body, a seawater lifting base pipe body (6) is arranged on the ship body, a plurality of plate frame type transverse bulkheads (7) are arranged in the ship body, the plate frame type transverse bulkheads (7) divide the interior of the ship body into a bow section (8), a stern section (9) and a plurality of cargo hold sections (10), two channel plate frame type longitudinal bulkheads (11) are arranged in the interior of the ship body, and the two channel plate frame type longitudinal bulkheads (11) divide the interior of the ship body into three cabins;

the two plate frame type transverse bulkheads (7) are arranged on the inner wall of a bow section (8) cabin, the two plate frame type transverse bulkheads (7) divide the bow section (8) cabin into a single-point cabin (12) and a bow tip cabin (13), an inner rotating tower mooring installation piece is arranged in the single-point cabin (12), and an outer rotating tower mooring piece is arranged on the surface of the bow sealing plate (3);

the seawater lifting base pipe body (6) is arranged on the cargo hold section (10), the top end of the seawater lifting base pipe body (6) extends to the top of the main deck (2), and the bottom end of the seawater lifting base pipe body (6) extends to the outside of the turn circle of the bilges of the side boards (5);

the surface of the side board (5) at the stern section (9) is connected with an accessory cabin (16), the top of the accessory cabin (16) is aligned with the top of the main deck (2), two propeller cabins (17) are arranged in the stern section (9), a mounting groove is formed in the bottom end of the propeller cabin (17), a propeller body (18) is detachably mounted on the inner wall of the mounting groove, and a mounting assembly is arranged in the propeller cabin (17);

the surface of the side plate (5) at the bow section (8) and the surface of the side plate (5) at the bow section (8) are both provided with multipoint mooring pieces.

2. The multifunctional floating production, storage and offloading device of claim 1, wherein the turret mooring mount is an octagonal bin (14), the octagonal bin (14) being disposed inside a single-point bin (12);

the outer turret mooring comprises a middle reinforcing longitudinal bulkhead (151) and two side reinforcing longitudinal bulkheads (152), wherein the two side reinforcing longitudinal bulkheads (152) are connected to the surface of a plate frame type transverse bulkhead (7), a reinforcing transverse bulkhead (153) is arranged between the two side reinforcing longitudinal bulkheads (152), the middle reinforcing longitudinal bulkhead (151) is positioned between the two side reinforcing longitudinal bulkheads (152), the reinforcing transverse bulkhead (153) and a bow sealing plate (3) are connected to the surface of the middle reinforcing longitudinal bulkhead (151), a connecting plane (154) is arranged on the surface of the bow sealing plate (3), the height of the connecting plane (154) is larger than 22m, and the width of the connecting plane (154) is larger than 24m;

the multipoint mooring comprises additional support tanks (201), wherein the additional support tanks (201) are connected to the surface of the side boards (5), and a plurality of anchor chains (202) are arranged on the two additional support tanks (201).

3. The multifunctional floating production storage and offloading device of claim 2, wherein the reinforcing transverse bulkhead (153) and the two side reinforcing longitudinal bulkheads (152) divide the fore-nose cabin (13) into a first fore-nose cabin (21), a second fore-nose cabin (22), a separation cabin (23) and an empty cabin (24), the first fore-nose cabin (21) and the second fore-nose cabin (22) are respectively located at two sides of the separation cabin (23) and the empty cabin (24), the separation cabin (23) is adjacent to the single-point cabin (12), the inner walls of the first fore-nose cabin (21), the second fore-nose cabin (22) and the empty cabin (24) are provided with a plurality of reinforcing horizontal plates (25), and the surface of each reinforcing horizontal plate (25) is provided with a plurality of longitudinal stringers (26).

4. The multifunctional floating production storage and offloading device of claim 2, wherein a plurality of the anchor chains (202) are uniformly distributed on an additional support tank (201), the additional support tank (201) is welded on the surface of the side plate, a plurality of reinforcing risers (27) are provided on the additional support tank (201), and the additional support tank (201), the anchor chains (202) and the reinforcing risers (27) are all made of high-strength steel.

5. A multifunctional floating production storage and offloading device according to claim 1, characterized in that the hold section (10) comprises a hull top section (101), a hull middle section (102) and a hull bilge section (103), the hull middle section (102) being connected on top of the hull bilge section (103), the hull top section (101) being connected on top of the hull middle section (102);

the seawater lifting base pipe body (6) comprises a first lifting pipe (61), a second lifting pipe (62) and a third lifting pipe (63), wherein the first lifting pipe (61) and the third lifting pipe (63) are respectively connected to the top end and the bottom end of the second lifting pipe (62), and the first lifting pipe (61), the second lifting pipe (62) and the third lifting pipe (63) are respectively arranged inside a ship body top section (101), a ship body middle section (102) and a ship body bilge section (103).

6. The multifunctional floating production storage and unloading device according to claim 1, wherein the installation assembly comprises two rope tractors (191) and two slings (192), the inner walls of the two propeller cabins (17) are provided with fixing frames, the two rope tractors (191) are respectively arranged in the propeller cabins (17) through the fixing frames, one ends of the slings (192) are connected to the rope tractors (191), and the other ends of the slings (192) extend to the outside of the propeller cabins (17).

7. The multifunctional floating production storage and unloading device according to claim 6, wherein the surface of the stern transom (4) is provided with lifting holes (28) corresponding to the surface of two propeller cabins (17), the inner wall of each lifting hole (28) is provided with a first traction cable (29), one end of each first traction cable (29) is connected with the inner wall of each lifting hole (28), the other end of each first traction cable (29) is provided with a first shackle (30), one end of one sling (192) is connected with a second traction cable (31), one end of each second traction cable (31) is provided with a second shackle (32), the surface of the propeller body (18) is provided with a lifting lug (33), and the first shackle (30) and the second shackle (32) are both buckled on the lifting lug (33).

8. The multifunctional floating production storage and offloading device according to claim 1, wherein a top of a main deck (2) of the bow section (8) is provided with a bow body (34) and a bow deck (35), the bow deck (35) is mounted on the bow body (34), the bow sealing plate (3) extends onto the bow deck (35), two partition longitudinal bulkheads (36) and two partition transverse bulkheads (37) are respectively arranged inside the single-point cabin (12), two sides of each partition longitudinal bulkhead (36) are respectively connected with surfaces of two plate-type transverse bulkheads (7), two sides of each partition transverse bulkhead (37) are respectively connected with surfaces of an octagonal cabin (14) and a partition longitudinal bulkhead (36), a ballast water cabin (38) is formed between the partition longitudinal bulkhead (36) and a side board, a space between the octagonal cabin (14) and the partition longitudinal bulkhead (36) is partitioned into a chemical storage cabin (39) and a chemical cabin (40), and the polyurethane storage cabin (39) is provided with an inner wall.

9. The multifunctional floating production, storage and offloading device of claim 1, wherein the hull 333m, the hull height 32.8m, the hull height 60m, the bottom plate (1) and the main deck (2) are of a single-layer plate structure, and the two side plates (5) are of a double-layer plate structure.

10. The construction method of the multifunctional floating production storage and unloading device is characterized by comprising the following steps:

step one: the ship body is built by five islands of a stern section (9), a 1-7 cargo hold section (10) ring section, an 8-10 cargo hold section (10) ring section, an 11-12 cargo hold section (10) ring section, a 13-15 cargo hold section (10) ring section and a bow section (8), and a plate frame type longitudinal bulkhead (11) is segmented corresponding to the stern section (9), the cargo hold sections (10) 1-15 and the bow section (8);

step two: building a bow section (8), constructing a bottom plate (1) of the bow section (8), and carrying out the steps of the total sections of all layers in sequence from bottom to top;

step three: constructing a cargo hold section (10), wherein the cargo hold section (10) is constructed by 13 ring sections, each ring section is constructed by three longitudinal sections, each section is constructed by three layers of a ship body top section (101), a ship body middle section (102) and a ship body bilge section (103), and a plate frame type transverse bulkhead (7) is correspondingly layered by the ship body top section (101), the ship body middle section (102) and the ship body bilge section (103);

wherein, the cargo hold section (10) provided with the seawater lifting base pipe bodies (6) is processed, each seawater lifting base pipe body (6) is divided into three lifting pipe pieces, the three lifting pipe pieces are processed and rolled uniformly, the butt joint ends are welded to form a first lifting pipe (61), a second lifting pipe (62) and a third lifting pipe (63) respectively, the first lifting pipe (61), the second lifting pipe (62) and the third lifting pipe (63) are pre-positioned, the first lifting pipe (61), the second lifting pipe (62) and the third lifting pipe (63) are placed on a jig frame for butt joint, then laser positioning is carried out, and the concentricity of the first lifting pipe (61), the second lifting pipe (62) and the third lifting pipe (63) is ensured to be accurate, so that the complete seawater lifting base pipe body (6) can be formed;

respectively pre-burying a first lifting pipe (61), a second lifting pipe (62) and a third lifting pipe into the interiors of a ship body top section (101), a ship body middle section (102) and a ship body bilge section (103);

step four: the stern section (9) is built, the bottom plate (1) of the bow section (8) is built, and all layers of headblocks are carried in sequence from bottom to top;

step five: the method comprises the steps of performing butt joint fixation after five islands of a stern section (9), 1-7 cargo hold sections (10), 8-10 cargo hold sections (10), 11-12 cargo hold sections (10), 13-15 cargo hold sections (10) and a bow section (8) are built;

step six: the inner walls of the chemical storage cabin (39) and the seawater lifting base pipe body (6) are coated with polyurethane coating

Step seven: two gangway plates (5) are provided with multipoint moorings;

step eight: a propeller body (18) is mounted in a mounting groove of a propeller compartment (17).