CN113833418A - Wave compensation device for downhole tool winch of floating drilling platform - Google Patents
Wave compensation device for downhole tool winch of floating drilling platform Download PDFInfo
- Publication number
- CN113833418A CN113833418A CN202111260190.7A CN202111260190A CN113833418A CN 113833418 A CN113833418 A CN 113833418A CN 202111260190 A CN202111260190 A CN 202111260190A CN 113833418 A CN113833418 A CN 113833418A
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- wire rope
- steel wire
- tensioning
- winch
- fixed pulley
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- 238000005553 drilling Methods 0.000 title claims abstract description 23
- 238000007667 floating Methods 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 61
- 239000010959 steel Substances 0.000 claims abstract description 61
- 238000009434 installation Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 244000309464 bull Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004260 weight control Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
- E21B19/004—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling supporting a riser from a drilling or production platform
- E21B19/006—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling supporting a riser from a drilling or production platform including heave compensators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/084—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0007—Equipment or details not covered by groups E21B15/00 - E21B40/00 for underwater installations
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a wave compensation device for a downhole tool winch of a floating drilling platform, which comprises a main hull structure, wherein a drill floor supporting structure is arranged on the upper side of the main hull structure, a drill floor structure is arranged on the upper side of the drill floor supporting structure, a drill string compensation device is arranged on the upper side of the drill floor structure, a marine riser tensioning device is arranged at each of two ends of the drill floor structure, a rotary table is arranged at the center of the drill floor structure, a fixed eye plate and four guide rollers are respectively arranged at each of two ends of the outer side of the rotary table, a big hook is arranged at the tail end of the drill string compensation device, a tensioning steel wire rope fixed pulley is hung at the lower side of the big hook, a tensioning steel wire rope is connected onto the fixed eye plate, and the tensioning steel wire rope penetrates through the tensioning steel wire rope fixed pulley and the four guide rollers to be connected to a marine riser tensioning ring. The wave compensation device of the underground tool winch realizes the wave compensation of the winch by using a simple structure, and greatly reduces the construction cost and the use cost of a platform.
Description
Technical Field
The invention relates to the technical field of oil and gas drilling and production of ships and ocean engineering, in particular to a wave compensation device for a downhole tool winch of a floating drilling platform.
Background
The drilling platform is a main device for the early development of offshore oil and gas resources, and particularly needs to overcome the influence of ocean waves on operations such as drilling, underground measurement, coring and the like in the drilling process of medium and deep sea area operation, so equipment with a wave compensation function needs to be arranged on the floating drilling platform (including a drilling ship). In the offshore drilling process, downhole tools (including downhole measuring tools, coring tools, fishing tools and the like) need to be placed into a well hole through a downhole tool winch (including a logging winch, a coring winch and the like), the tools placed into the well hole can move up and down along with the floating drilling platform due to drifting and heaving caused by the influence of waves, and in order to ensure that the downhole tools keep unchanged relative to a well head, the downhole tool winch is required to have a wave compensation function or realize the wave compensation of the downhole tool winch in other modes, the drilling platform has high requirements on equipment weight control, and the total amount of equipment is reduced as much as possible.
Disclosure of Invention
The invention aims to provide a wave compensation device for a downhole tool winch of a floating drilling platform, which aims to solve the problems that in the background technology, the downhole tool winch placed in a well hole moves up and down along with drifting and heaving caused by the influence of waves on the floating drilling platform, and the downhole tool winch needs to have a wave compensation function or realize the wave compensation of the downhole tool winch in other modes in order to ensure that the downhole tool can keep the position unchanged relative to the well head, the drilling platform has high requirements on the weight control of equipment, and the total amount of the equipment is reduced as much as possible.
In order to achieve the purpose, the invention provides the following technical scheme:
floating drilling platform is instrument winch heave compensation device in pit, including main hull structure, main hull structure upside is provided with drill floor bearing structure, drill floor bearing structure upside is provided with the drill floor structure, drill floor structure upside is provided with drilling string compensation arrangement, drill floor structure both ends all are provided with riser overspeed device tensioner, drill floor structure center department is provided with the carousel, carousel outside both ends are provided with fixed eye plate and four rollers of direction respectively, drilling string compensation arrangement end is provided with the bull hook, the bull hook downside has hung tensioning wire rope fixed pulley, be connected with tensioning wire rope above the fixed eye plate, tensioning wire rope passes tensioning wire rope fixed pulley and leads four rollers and connect in riser tensioning ring.
Further, the fixed eye plate and the four guide rollers are symmetrically arranged along the central axis of the turntable respectively, and the fixed eye plate and the four guide rollers are installed close to the center of the turntable.
Furthermore, an underground tool winch steel wire rope fixed pulley is hung on the lower side of the tensioning steel wire rope fixed pulley, and the tensioning steel wire rope fixed pulley is connected with the underground tool winch steel wire rope fixed pulley through a 360-degree rotary shackle.
Further, the outer side of the fixed pulley of the underground tool winch steel wire rope is provided with an underground tool winch steel wire rope, one end of the underground tool winch steel wire rope is connected to the underground tool winch, and the other end of the underground tool winch steel wire rope penetrates through the rotary table to be connected to the underground tool.
Further, the instrument outside in the pit is provided with the riser expansion joint, the riser expansion joint upside is provided with the riser tensioning ring, the riser tensioning ring outside is provided with tensioning ware wire rope, tensioning ware wire rope both ends all pass the tensioning ware leading wheel and connect in the riser overspeed device tensioner at rig floor structure both ends.
Further, the drill string compensation device and the drill floor structure are fixedly connected through a derrick.
Furthermore, an included angle is formed between a surface formed by the tensioning steel wire rope and the tensioning steel wire rope fixed pulley and a surface formed by the underground tool winch steel wire rope and the underground tool winch steel wire rope fixed pulley.
Further, the fixed eye plate is connected to the tensioning steel wire rope through a shackle, and the fixed eye plate passes through the inside of a structure on the outer side of the embedded installation turntable.
Further, the tensioner guide wheels are symmetrically arranged at two ends of the bottom of the drill floor structure along the central axis of the rotary table.
Compared with the prior art, the invention has the beneficial effects that:
the wave compensation device of the underground tool winch realizes the wave compensation function of the underground tool winch by adding the tensioning steel wire rope fixed pulley, the underground tool winch steel wire rope fixed pulley, the guiding four rollers and the tensioning steel wire rope and combining the existing drill string compensation device and the marine riser tensioning device of the drilling platform. The wave compensation of the underground tool winch is realized under the condition that the underground tool winch does not need to be configured with an automatic compensation function. The wave compensation device of the underground tool winch not only saves the manufacturing cost of the underground tool winch, but also reduces the weight center of gravity of the platform and the power demand of the underground tool winch on the platform, thereby reducing the energy consumption and being simple and convenient to operate. The wave compensation device of the underground tool winch realizes the wave compensation of the winch by using a simple structure, and greatly reduces the construction cost and the use cost of a platform.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1. the device comprises a drill string compensation device, 2, a derrick, 3, a hook, 4, a tensioning steel wire rope fixed pulley, 5, a downhole tool winch steel wire rope fixed pulley, 6, a fixed eye plate, 7, a tensioning steel wire rope, 8, a rotary table, 9, a guide four-roller column, 10, a downhole tool winch, 11, a downhole tool winch steel wire rope, 12, a tensioner guide wheel, 13, a tensioner steel wire rope, 14, a riser tensioning ring, 15, a downhole tool, 16, a riser expansion joint, 17, a riser tensioning device, 18, a drill floor structure, 19, a drill floor support structure, 20 and a main hull structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
floating drilling platform is instrument winch wave compensation arrangement in pit, including main hull structure 20, main hull structure 20 upside is provided with rig floor bearing structure 19, rig floor bearing structure 19 upside is provided with rig floor structure 18, rig floor structure 18 upside is provided with drill string compensation arrangement 1, rig floor structure 18 both ends all are provided with riser overspeed device tensioner 17, rig floor structure 18 center department is provided with carousel 8, carousel 8 outside both ends are provided with fixed eye plate 6 and four roller 9 of direction respectively, drill string compensation arrangement 1 end is provided with big hook 3, the downside of big hook 3 hangs tensioning wire rope fixed pulley 4, be connected with tensioning wire rope 7 above the fixed eye plate 6, tensioning wire rope 7 passes tensioning wire rope fixed pulley 4 and four roller 9 of direction and connects in riser ring 14.
In the invention, the fixed eye plate 6 and the four guide rollers 9 are respectively arranged symmetrically along the central axis of the turntable 8, and the fixed eye plate 6 and the four guide rollers 9 are arranged close to the center of the turntable 8.
In the invention, the lower side of the tensioning steel wire rope fixed pulley 4 is hung with the underground tool winch steel wire rope fixed pulley 5, and the tensioning steel wire rope fixed pulley 4 is connected with the underground tool winch steel wire rope fixed pulley 5 through a 360-degree rotary shackle.
In the invention, a downhole tool winch steel wire rope 11 is arranged outside a downhole tool winch steel wire rope fixed pulley 5, one end of the downhole tool winch steel wire rope 11 is connected to a downhole tool winch 10, and the other end of the downhole tool winch steel wire rope 11 penetrates through a rotary table 8 and is connected to a downhole tool 15.
In the invention, a riser expansion joint 16 is arranged on the outer side of a downhole tool 15, a riser tensioning ring 14 is arranged on the upper side of the riser expansion joint 16, a tensioner steel wire rope 13 is arranged on the outer side of the riser tensioning ring 14, and two ends of the tensioner steel wire rope 13 penetrate through a tensioner guide wheel 12 and are connected with riser tensioning devices 17 at two ends of a drill floor structure 18.
In the invention, the drill string compensation device 1 and the drill floor structure 18 are firmly connected through the derrick 2.
In the invention, an included angle exists between the surface formed by the tensioning steel wire rope 7 and the tensioning steel wire rope fixed pulley 4 and the surface formed by the underground tool winch steel wire rope 11 and the underground tool winch steel wire rope fixed pulley 5.
In the invention, the fixed eye plate 6 is connected to the tensioning steel wire rope 7 through a shackle, and the fixed eye plate 6 passes through the inside of the structure outside the embedded installation turntable 8.
In the invention, the tensioner guide wheels 12 are symmetrically arranged at the two ends of the bottom of the drill floor structure 18 along the central axis of the rotary table 8.
The working principle is as follows:
when the device is in operation, the riser tensioning device 17 of the drilling platform itself is in operation, while the drill string compensating device 1 is in operation.
The downhole tool winch steel wire rope 11 connected with the outer side of the downhole tool winch 10 lowers the downhole tool 15 into the shaft through the downhole tool winch steel wire rope fixed pulley 5, when the main hull floats upwards under the influence of waves, the tensioner steel wire rope 13 of the marine riser tensioning device 17 extends along with the rising of the hull to ensure that the distance between the marine riser tensioning ring 14 and the seabed is not changed, the part of the marine riser expansion joint 16 above the marine riser tensioning ring 14 is extended along with the marine riser tensioning ring, but the length of the tensioning steel wire rope 7 is fixed, so the tensioning steel wire rope fixed pulley 4 and the downhole tool winch steel wire rope fixed pulley 5 move downwards under the tension, because the drill string compensation device 1 is in the working state at the moment, the drill string compensation device 1 automatically moves the hook 3 downwards and keeps the tension of the tensioning steel wire rope 7 unchanged, and therefore the downhole tool winch steel wire rope fixed pulley 5 automatically moves downwards, at this point, the downhole tool 15 will automatically move downward relative to the rig floor structure 18 and remain in position relative to the seabed, even when the downhole tool winch 10 is braked. Conversely, when the hull is submerged under the influence of waves, the downhole tool 15 is automatically moved up relative to the rig structure 18 to achieve the automatic wave compensation function of the downhole tool winch 10.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. Floating drilling platform is instrument winch heave compensation device in pit, including main hull structure (20), main hull structure (20) upside is provided with drill floor bearing structure (19), drill floor bearing structure (19) upside is provided with drill floor structure (18), its characterized in that: drill floor structure (18) upside is provided with drill string compensation arrangement (1), drill floor structure (18) both ends all are provided with riser overspeed device tensioner (17), drill floor structure (18) center department is provided with carousel (8), carousel (8) outside both ends are provided with fixed eye board (6) and four roller (9) of direction respectively, drill string compensation arrangement (1) end is provided with hook (3), tensioning wire rope fixed pulley (4) have been hung to hook (3) downside, be connected with tensioning wire rope (7) above fixed eye board (6), tensioning wire rope (7) pass tensioning wire rope fixed pulley (4) and four roller (9) of direction and are connected in riser tensioning ring (14).
2. The floating vessel downhole tool winch heave compensation apparatus of claim 1, wherein: the fixed eye plate (6) and the four guide rollers (9) are symmetrically arranged along the central axis of the turntable (8) respectively, and the fixed eye plate (6) and the four guide rollers (9) are installed close to the center of the turntable (8).
3. The floating vessel downhole tool winch heave compensation apparatus of claim 1, wherein: and an underground tool winch steel wire rope fixed pulley (5) is hung on the lower side of the tensioning steel wire rope fixed pulley (4), and the tensioning steel wire rope fixed pulley (4) is connected with the underground tool winch steel wire rope fixed pulley (5) through 360-degree rotary shackles.
4. The floating vessel downhole tool winch heave compensation apparatus of claim 3, wherein: and an underground tool winch steel wire rope (11) is arranged on the outer side of the underground tool winch steel wire rope fixed pulley (5), one end of the underground tool winch steel wire rope (11) is connected to the underground tool winch (10), and the other end of the underground tool winch steel wire rope (11) penetrates through the rotary table (8) to be connected to the underground tool (15).
5. The floating vessel downhole tool winch heave compensation apparatus of claim 4, wherein: the tool is provided with riser expansion joint (16) in the pit (15) outside, riser expansion joint (16) upside is provided with riser tensioning ring (14), riser tensioning ring (14) outside is provided with tensioning ware wire rope (13), tensioning ware wire rope (13) both ends are all passed tensioning ware leading wheel (12) and are connected in riser overspeed device tensioner (17) at rig floor structure (18) both ends.
6. The floating vessel downhole tool winch heave compensation apparatus of claim 1, wherein: the drill string compensation device (1) is tightly connected with the drill floor structure (18) through a derrick (2).
7. The floating vessel downhole tool winch heave compensation apparatus of claim 3, wherein: an included angle is formed between a surface formed by the tensioning steel wire rope (7) matched with the tensioning steel wire rope fixed pulley (4) and a surface formed by the underground tool winch steel wire rope (11) and the underground tool winch steel wire rope fixed pulley (5).
8. The floating vessel downhole tool winch heave compensation apparatus of claim 1, wherein: the fixed eye plate (6) is connected to the tensioning steel wire rope (7) through a shackle, and the fixed eye plate (6) passes through the inside of a structure on the outer side of the embedded installation turntable (8).
9. The floating vessel downhole tool winch heave compensation apparatus of claim 5, wherein: the tensioner guide wheels (12) are symmetrically arranged at two ends of the bottom of the drill floor structure (18) along the central axis of the rotary table (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111260190.7A CN113833418A (en) | 2021-10-28 | 2021-10-28 | Wave compensation device for downhole tool winch of floating drilling platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111260190.7A CN113833418A (en) | 2021-10-28 | 2021-10-28 | Wave compensation device for downhole tool winch of floating drilling platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113833418A true CN113833418A (en) | 2021-12-24 |
Family
ID=78966186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111260190.7A Pending CN113833418A (en) | 2021-10-28 | 2021-10-28 | Wave compensation device for downhole tool winch of floating drilling platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113833418A (en) |
-
2021
- 2021-10-28 CN CN202111260190.7A patent/CN113833418A/en active Pending
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