CN109505537A - A kind of water proof tube suspension device and hanging method - Google Patents
A kind of water proof tube suspension device and hanging method Download PDFInfo
- Publication number
- CN109505537A CN109505537A CN201811587778.1A CN201811587778A CN109505537A CN 109505537 A CN109505537 A CN 109505537A CN 201811587778 A CN201811587778 A CN 201811587778A CN 109505537 A CN109505537 A CN 109505537A
- Authority
- CN
- China
- Prior art keywords
- marine riser
- pup joint
- water proof
- hanging
- suspension device
- 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.)
- Pending
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 79
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000012141 concentrate Substances 0.000 abstract description 2
- 230000008719 thickening Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 7
- 238000005553 drilling Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention discloses a kind of water proof tube suspension device and hanging methods.The water proof tube suspension device includes a hanging pup joint；The hanging pup joint includes interlude and the changeover portion set on its both ends, and the wall thickness of the changeover portion is less than the wall thickness of the interlude；The outer wall of the hanging pup joint is equipped with centralizer；By the interlude to the both ends of the hanging pup joint, the wall thickness of the changeover portion is gradually thinning.The present invention hangs the design of marine riser and variable cross-section by thickening, suspension marine riser is improved to the adaptability of environmental condition, spherojoint is installed between hanging pup joint and conventional marine riser, the issuable local stress of the rigidity of structure difference between hanging pup joint and marine riser is avoided to concentrate, and when hanging marine riser run-off the straight under action of ocean current, moment of flexure is released in spherojoint position, and hanging pup joint still can keep vertical state substantially, it is ensured that the safety of system.
Description
Technical field
The present invention relates to a kind of water proof tube suspension device and hanging methods, belong to sea oil drilling and production technical field.
Background technique
Underwater well head is connected to floating drilling platform by marine riser during deepwater drilling operation, establishes drilling fluid in pit shaft
Interior circulation canal, when meeting with severe sea condition, floating drilling platform, which may be forced to shift, leaves set underwater well head position
The surface set, when deviateing excessive, bending stress is excessive caused by underwater well head may occur because of Platform set, causes underwater
The integrality of shaft collar is destroyed, therefore once meets with severe sea condition, and marine riser, which needs to escape with underwater well head, to be come, this
Sample ensures that the safety of well head, and the marine riser of upper km (specific length is depending on the depth of water) is suspended on platform with free state
On.Marine riser after freeing under normal circumstances is suspended on marine riser by the flange of marine riser and hangs on chuck, this suspension side
Formula is there are certain risk, first, due to suspension marine riser under severe sea condition can run-off the straight, in current divider shell
Partial volume easily collides, and the shock loading of collision may cause the destruction of diverter housing or marine riser；Second, ordinary circumstance
Under, marine riser suspension is all by the conventional single realization of marine riser, but due to conventional water proof tube material, specifications parameter
It is all almost the same, but during hanging, weight of the top marine riser due to carry entire suspension marine riser, top
The load that is subject to of marine riser it is larger, due to no special strengthening measure, constrain suspension marine riser and environmental condition fitted
It should be able to power.
Summary of the invention
The object of the present invention is to provide a kind of water proof tube suspension device and hanging method, the water proof tube suspension device has
The hanging pup joint of variable cross-section can be realized the suspension of drilling water-separation pipe.
Water proof tube suspension device provided by the present invention, including a hanging pup joint；
The hanging pup joint includes interlude and the changeover portion set on its both ends, and the wall thickness of the changeover portion is less than in described
Between section wall thickness；
The outer wall of the hanging pup joint is equipped with centralizer.
In above-mentioned water proof tube suspension device, by the interlude to the both ends of the hanging pup joint, the changeover portion
Wall thickness is gradually thinning；
The wall thickness of the interlude is consistent, i.e., the described hanging pup joint includes that the wall thickness of intermediate thick section and both ends gradually becomes
Thin changeover portion, the thinnest part of changeover portion is consistent with the conventional wall thickness of marine riser, i.e., the described hanging pup joint has the spy of variable cross-section
Point.So set, hanging pup joint of the present invention is designed using reinforced wall thickness compared with conventional marine riser, carrying is improved
Ability, while the design transition section between thick section and marine riser taper to approximate conventional marine riser by changeover portion
Wall thickness, this design can be to avoid after due to hanging pup joint wall thickness increases, and the excessive rigidity caused under it of rigidity is lesser outstanding
It hangs marine riser and generates biggish deformation load, solve the following risk of corresponding generation: although conventional marine riser can by wall thickness
To improve intensity and hanging capacity, but since it is larger with the marine riser wall thickness variation of suspension, rigidity resulting from is dashed forward
Become, results in suspension marine riser marine riser below and biggish deformation occurs, to generate stress overload, it is broken that surrender occurs for structure
It is bad, it is in this case, nonsensical the wall thickness for hanging marine riser is strong again, because the suspension marine riser under it has been sent out
Destruction is given birth to.Therefore, the technical characteristic that wall thickness of the present invention adds changeover portion to design realizes smoothed between different-stiffness structure
It crosses, it is ensured that the stress risk point of entire suspension riser system is fallen on hanging pup joint, and design of the invention is to ensure that
Before hanging pup joint destroys, under marine riser be safe.
In above-mentioned water proof tube suspension device, the centralizer is righting floor；
Four centralizers are arranged in the present invention, and centralizer described in every two is symmetrical arranged；
The centralizer carries out righting to suspension marine riser, reduces the bending load of suspension marine riser, avoids water proof
The risk to collide between pipe and current divider shell；Under severe environmental conditions, suspension marine riser can occur under action of ocean current
Offset, under the action of the centralizer, the hanging pup joint keeps vertical state substantially.
In above-mentioned water proof tube suspension device, the ball that one end of the hanging pup joint is connected with for connecting marine riser is connect
Head；The spherojoint can be avoided the hanging pup joint and hang the issuable part of rigidity of structure difference between marine riser
Stress concentrate, and when hanging marine riser run-off the straight under action of ocean current, moment of flexure is released in the spherojoint position
It puts, hanging pup joint still can keep vertical state substantially, it is ensured that the safety of system, therefore the spherojoint is outstanding for discharging
Hang the bending load that marine riser offset generates；If being not provided with the spherojoint, between the hanging pup joint and suspension marine riser
Directly rigidity (such as flange) connection, bending load are communicated up directed along the hanging pup joint, in the centralizer and will be divided
Biggish moment of flexure is generated between stream device shell, causes the damage of current divider shell or centralizer.
In above-mentioned water proof tube suspension device, the both ends of the hanging pup joint are fixed on flange.
In above-mentioned water proof tube suspension device, the hanging pup joint can be made of steel.
When hanging marine riser using water proof tube suspension device of the present invention, it can carry out as steps described below:
(1) the water proof tube suspension device is lifted to interface, by the water proof tube suspension device and it is to be hung every
Water pipe connection；
(2) the water proof tube suspension device is transferred, is fixed on the top of the water proof tube suspension device in suspension chuck
Flexible voussoir on, the centralizer is located at the inside of current divider shell at this time；Complete the suspension of the marine riser.
Before hanging marine riser, the water proof tube suspension device needs offline assembling: will be described outstanding in platform deck region
It hangs pipe nipple and the spherojoint connects, the centralizer (such as four righting floors) is mounted on the outer wall of the hanging pup joint
On.Installation site and length of the hanging pup joint centralizer on hanging pup joint will be matched with the position of current divider shell.
Water proof tube suspension device provided by the invention realizes the outstanding of drilling water-separation pipe by the hanging pup joint of a variable cross-section
It hangs, righting is carried out to suspension marine riser by the centralizer, the bending load of suspension marine riser is reduced, avoids marine riser
The risk to collide between current divider shell；The present invention hangs the design of marine riser and variable cross-section by thickening, and improves
Suspension marine riser is installed spherojoint between hanging pup joint and conventional marine riser, is avoided to the adaptability of environmental condition
The issuable local stress of rigidity of structure difference between hanging pup joint and marine riser is concentrated, and when suspension marine riser exists
Under action of ocean current when run-off the straight, moment of flexure is released in spherojoint position, and hanging pup joint still can keep vertical shape substantially
State, it is ensured that the safety of system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of water proof tube suspension device (in dotted line frame) of the present invention.
Fig. 2 is the structural schematic diagram of A-A section in Fig. 1.
Fig. 3 is the structural schematic diagram of B-B section in Fig. 1.
Fig. 4 is water proof tube suspension device of the present invention in working state schematic representation.
Fig. 5 is the connection procedure schematic diagram of water proof tube suspension device of the present invention and conventional marine riser.
It is respectively marked in figure as follows:
1 hanging pup joint, 1-1 interlude, 1-2 changeover portion, 2 righting floors, 3 (suspension) marine risers, 4 current divider shells, 5 methods
Orchid, 6 spherojoints, 7 suspension chucks, 8 flexible voussoirs.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing, but the invention is not limited to following embodiments.
As shown in Figure 1, being the structural schematic diagram (in dotted line frame) of water proof tube suspension device of the present invention, it includes that a suspension is short
Section 1, the hanging pup joint 1 are less than interlude including the wall thickness of interlude 1-1 and the changeover portion 1-2 set on its both ends, changeover portion 1-2
The wall thickness of 1-1, and the wall thickness of interlude 1-1 is consistent (thick section), the wall thickness of changeover portion 1-2 is gradually thinning, thinnest part and often
The wall thickness for advising marine riser is consistent, i.e., hanging pup joint 1 has the characteristics that variable cross-section, as shown in Figures 2 and 3.The outer wall of hanging pup joint 1
On set there are four righting floor 2, every 2 righting floors 2 are symmetrical arranged, and for carrying out righting to suspension marine riser 3, are reduced outstanding
The bending load for hanging marine riser 3 avoids the risk to collide between suspension marine riser 3 and current divider shell 4.Hanging pup joint
1 both ends are fixed on flange 5.One end of the hanging pup joint 1 is connected with the spherojoint 6 for connecting marine riser, spherojoint 6
The issuable local stress of rigidity of structure difference that can be avoided hanging pup joint 1 and hang between marine riser 3 is concentrated, and
When hanging the run-off the straight under action of ocean current of marine riser 3, as shown in figure 4, moment of flexure is released in 6 position of spherojoint, suspension
Pipe nipple 1 still can keep vertical state substantially, it is ensured that the safety of system.
When water proof tube suspension device suspension marine riser of the present invention, carry out as steps described below:
(1) marine riser suspension arrangement is assembled offline: connecting hanging pup joint 1 and spherojoint 6 in platform deck region, it will
Four righting floors 2 are mounted on the periphery of hanging pup joint 1.Installation site and length of the righting floor 2 on hanging pup joint 1 will be with
The position of current divider shell 4 matches.
(2) suspension arrangement and marine riser are connected in rig floor: assembled suspension arrangement is lifted by Platform lifting devices, cat road machine
To interface, Strength of Suspension Gear is driven on top.As shown in figure 5, be connected with the marine riser 3 being sitting on suspension chuck 7, decentralization suspension dress
The marine riser 3 set and be attached thereto, until the upper flange 5 of suspension arrangement be sitting in suspension chuck 7 flexible voussoir 8 on, complete every
The suspension of water pipe 3, righting floor 2 is also placed exactly in the inside of current divider shell 4 at this time.
Under severe environmental conditions, suspension marine riser 3 can shift under action of ocean current, under the action of righting floor 2,
Hanging pup joint 1 keeps vertical state substantially, spherojoint play the role of be: the bending load that the release offset of marine riser 3 generates.
Compared with conventional marine riser, the hanging pup joint in water proof tube suspension device of the present invention is set using reinforced wall thickness
Meter improves bearing capacity, while the design transition section between thick section and marine riser, tapers to by changeover portion approximate normal
Advise the wall thickness of marine riser, this design can to avoid after due to hanging pup joint wall thickness increase, rigidity is excessive cause it is rigid under it
It spends lesser suspension marine riser and generates biggish deformation load, risk existing in this way is: although hanging pup joint intensity is sufficiently strong,
But due to the difference of rigidity, results in hanging pup joint marine riser below and biggish deformation occurs, to generate stress mistake
It carrying, yield failure occurs for structure, and it is in this case, nonsensical the wall thickness of hanging pup joint is strong again, because under it
Suspension marine riser has occurred that destruction.Therefore, the technical characteristic that wall thickness of the present invention adds changeover portion to design realizes different-stiffness
Smooth transition between structure, it is ensured that the stress risk point of entire suspension riser system is fallen on hanging pup joint, of the invention
Design be to ensure that before hanging pup joint destroys, under marine riser be safe.
Claims (8)
1. a kind of water proof tube suspension device, including a hanging pup joint；
The hanging pup joint includes interlude and the changeover portion set on its both ends, and the wall thickness of the changeover portion is less than the interlude
Wall thickness；
The outer wall of the hanging pup joint is equipped with centralizer.
2. water proof tube suspension device according to claim 1, it is characterised in that: by the interlude to the hanging pup joint
Both ends, the wall thickness of the changeover portion is gradually thinning.
3. water proof tube suspension device according to claim 2, it is characterised in that: the wall thickness of the interlude is consistent.
4. water proof tube suspension device according to any one of claim 1-3, it is characterised in that: the centralizer is righting
Floor.
5. water proof tube suspension device described in any one of -4 according to claim 1, it is characterised in that: the centralizer is four
A, centralizer described in every two is symmetrical arranged.
6. water proof tube suspension device according to any one of claims 1-5, it is characterised in that: the one of the hanging pup joint
End is connected with the spherojoint for connecting marine riser.
7. water proof tube suspension device according to claim 1 to 6, it is characterised in that: the two of the hanging pup joint
End is fixed on flange.
8. a kind of hanging method of marine riser, includes the following steps:
(1) water proof tube suspension device described in any one of claim 1-7 is lifted to interface, the marine riser is hung and is filled
It sets and is connect with marine riser to be hung；
(2) the water proof tube suspension device is transferred, the top of the water proof tube suspension device is made to be fixed on the flexible of suspension chuck
On voussoir, the centralizer is located at the inside of current divider shell at this time, that is, completes the suspension of the marine riser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811587778.1A CN109505537A (en) | 2018-12-25 | 2018-12-25 | A kind of water proof tube suspension device and hanging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811587778.1A CN109505537A (en) | 2018-12-25 | 2018-12-25 | A kind of water proof tube suspension device and hanging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109505537A true CN109505537A (en) | 2019-03-22 |
Family
ID=65754563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811587778.1A Pending CN109505537A (en) | 2018-12-25 | 2018-12-25 | A kind of water proof tube suspension device and hanging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109505537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622847A (en) * | 2021-09-16 | 2021-11-09 | 中海石油(中国)有限公司 | Flexible suspension device for drilling riser and operation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109277A (en) * | 2007-09-03 | 2008-01-23 | 中国海洋石油总公司 | Buoyant device used for blowout preventer in deepwater drilling water |
| CN105298405A (en) * | 2015-12-07 | 2016-02-03 | 中国石油大学(华东) | Marine riser suspension joint for typhoon-avoiding evacuation |
| CN106639918A (en) * | 2017-01-04 | 2017-05-10 | 中国海洋石油总公司 | Suspension device and suspension method of water-secluding pipe system for deepwater well drilling |
| CN107191145A (en) * | 2017-07-17 | 2017-09-22 | 中国海洋石油总公司 | A kind of marine riser suspension special-purpose nipple and its application method |
| CN209539286U (en) * | 2018-12-25 | 2019-10-25 | 中国海洋石油集团有限公司 | A kind of water proof tube suspension device |
-
2018
- 2018-12-25 CN CN201811587778.1A patent/CN109505537A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109277A (en) * | 2007-09-03 | 2008-01-23 | 中国海洋石油总公司 | Buoyant device used for blowout preventer in deepwater drilling water |
| CN105298405A (en) * | 2015-12-07 | 2016-02-03 | 中国石油大学(华东) | Marine riser suspension joint for typhoon-avoiding evacuation |
| CN106639918A (en) * | 2017-01-04 | 2017-05-10 | 中国海洋石油总公司 | Suspension device and suspension method of water-secluding pipe system for deepwater well drilling |
| CN107191145A (en) * | 2017-07-17 | 2017-09-22 | 中国海洋石油总公司 | A kind of marine riser suspension special-purpose nipple and its application method |
| CN209539286U (en) * | 2018-12-25 | 2019-10-25 | 中国海洋石油集团有限公司 | A kind of water proof tube suspension device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622847A (en) * | 2021-09-16 | 2021-11-09 | 中海石油(中国)有限公司 | Flexible suspension device for drilling riser and operation method thereof |
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