CN220133941U - Fixed platform internal hanging wellhead device - Google Patents
Fixed platform internal hanging wellhead device Download PDFInfo
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- CN220133941U CN220133941U CN202320904747.4U CN202320904747U CN220133941U CN 220133941 U CN220133941 U CN 220133941U CN 202320904747 U CN202320904747 U CN 202320904747U CN 220133941 U CN220133941 U CN 220133941U
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- Prior art keywords
- wellhead
- guide cylinder
- newly added
- rod
- platform
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 230000002452 interceptive effect Effects 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a fixed platform internal hanging wellhead device, which comprises: the first boss type supporting device is arranged between the underwater rod pieces of the jacket and used for newly increasing the underwater support of the wellhead; the first wellhead guide device is arranged on the upper deck and is positioned right above the first boss type supporting device, and is used for reinforcing the cut original steel after penetrating through the steel which interferes with the newly added wellhead and supporting the upper part of the newly added wellhead. The utility model also discloses a wellhead hanging device in the fixed platform, which comprises a second boss type supporting device, a first supporting device and a second supporting device, wherein the second boss type supporting device is arranged on one side of the underwater rod piece of the jacket and is used for newly increasing the underwater support of a wellhead; and the second deck reinforced wellhead guide device is arranged on the upper deck and is positioned right above the second boss type supporting device and used for supporting the upper part of the newly added wellhead. The beneficial effects of the utility model are as follows: can be widely applied to the internal hanging wellhead and effectively support the newly added wellhead.
Description
Technical Field
The utility model relates to the technical fields of petrochemical industry and ocean engineering, in particular to an internal hanging wellhead device of a fixed platform.
Background
There is a certain gap between the actual production dynamics after the oil field is put into operation and the prediction in the early development of the oil field. Along with the determination of geological reserves, a plurality of potential well sites are newly increased in a plurality of oil fields, and the yield of the potential well sites cannot generally support the investment of a newly built platform, so that in order to exploit the potential well sites, a wellhead is usually required to be increased on a service platform for developing the potential well sites, the yield and the recovery ratio of the oil fields are continuously improved, and the aim of stable yield and yield increase of the oil fields is fulfilled.
The conventional newly-added wellhead method of the active oil production platform is divided into two modes of adding a wellhead to a jacket and adding the wellhead to the jacket. The conventional jacket is internally provided with a wellhead proposal, the wellhead position of the conventional jacket is arranged on the outer side of an original wellhead of a platform in a wellhead area, and as equipment such as a wellhead manifold, a wellhead control panel and the like are generally arranged on the outer side of the original wellhead, the conventional internally-hung wellhead proposal has the problems of large reconstruction workload, insufficient available space and the like, so that an adjustment well cannot be effectively implemented to meet the drilling requirement; the jacket externally-added wellhead scheme can solve the problem of insufficient available space by newly adding a deck at the outer side of a platform, but the problem that the engineering quantity of the platform is large and more burden is added to the platform exists, moreover, wellhead water-stop sleeves are arranged at the outer side of the jacket, risk of being bumped exists, in addition, legs of the jacket of the platform at a deeper water site are inclined outwards, the bottom of the jacket is larger than the top of the jacket, and the condition of externally hanging the wellhead is not provided.
Disclosure of Invention
The utility model aims to provide a wellhead hanging device in a fixed platform, which is provided with a first boss type supporting device and a first wellhead guiding device and can effectively support newly added wellhead.
It is still another object of the present utility model to provide a fixed platform on-board wellhead assembly having a second boss-type support and a second wellhead guide that effectively secures a newly added wellhead.
In order to achieve the above purpose, the present utility model adopts the following technical scheme that:
the first boss type supporting device is arranged between the underwater rod pieces of the jacket and used for newly increasing the underwater support of the wellhead;
the first wellhead guide device is arranged on the upper deck and is positioned right above the first boss type supporting device, and is used for reinforcing the cut original steel after penetrating through the steel which interferes with the newly added wellhead and supporting the upper part of the newly added wellhead;
wherein the first boss type supporting device comprises;
the first guide cylinder is used for guiding the newly added wellhead and fixing the lower part of the newly added wellhead;
the first support rod consists of a cross rod and a vertical rod which are connected in a T shape, the free end of the vertical rod is connected with the first guide cylinder, and first pipe clamps are respectively arranged at the two ends of the cross rod and used for fixing the first guide cylinder between jacket rod pieces which are arranged in parallel on a lower deck;
the first wellhead guide device includes;
the second guide cylinder is arranged on the upper deck and is positioned right above the first guide cylinder, and is used for reinforcing the broken original section steel after penetrating through the section steel interfering with the newly added wellhead and fixing the upper part of the newly added wellhead;
and the first butt-joint beams are arranged at two ends of the second guide cylinder and are respectively welded with the profile steel on the upper deck, and are used for fixing the second guide cylinder on the upper deck.
Preferably, the upper ports of the first guide cylinder and the second guide cylinder are respectively provided with a first horn mouth structure.
Preferably, a plurality of first wedges which are distributed according to the circumference are arranged at the first bell mouth structure and are used for clamping the newly-added wellhead.
Preferably, a first ring plate extending outwards is arranged at the lower edge of the second guide cylinder.
Preferably, a plurality of first reinforcing ribs are arranged on the outer wall of the first guide cylinder along the circumference.
A fixed platform internal hanging wellhead assembly, comprising:
the second boss type supporting device is arranged on one side of the jacket underwater rod piece and used for newly increasing the underwater support of the wellhead;
the second wellhead guide device is arranged on the upper deck and is positioned right above the second boss type supporting device, and is used for reinforcing broken original section steel after penetrating through section steel interfering with the newly added wellhead and supporting the upper part of the newly added wellhead;
wherein the second boss type supporting device comprises;
the third guide cylinder is used for guiding the newly added wellhead and supporting the lower part of the newly added wellhead;
one end of the second supporting rod is connected with the third guide cylinder, and the other end of the second supporting rod is connected with the second pipe clamp and is used for fixing the third guide cylinder on one side of a jacket rod piece of the lower deck;
the second wellhead guide includes;
the fourth guide cylinder is arranged on the upper deck and is positioned right above the third guide cylinder, and is used for penetrating through the profile steel interfering with the newly added wellhead and fixing the upper part of the newly added wellhead;
and the second butt joint beam is arranged at two ends of the fourth guide cylinder, and the two ends of the second butt joint beam are respectively welded with the profile steel on the upper deck and are used for fixing the fourth guide cylinder on the upper deck.
Preferably, the method further comprises:
the torsion-preventing auxiliary rod is characterized in that one end of the torsion-preventing auxiliary rod is connected with the middle part of the second supporting rod, the other end of the torsion-preventing auxiliary rod is connected with an arc-shaped plate, and the arc-shaped plate is used for being erected on an adjacent jacket rod piece.
Preferably, the upper ports of the third guide cylinder and the fourth guide cylinder are respectively provided with a second bell mouth structure; and a plurality of second wedges which are distributed according to the circumference are arranged at the second bell mouth structure and are used for clamping the newly-added wellhead.
Preferably, a second ring plate extending outwards is arranged at the lower edge of the fourth guide cylinder.
Preferably, a plurality of second reinforcing ribs are arranged on the outer wall of the third guide cylinder along the circumference.
The utility model has the beneficial effects that: the first boss type supporting device and the first wellhead guiding device are arranged, so that the newly added wellhead can be effectively supported. The second boss type supporting device and the second wellhead guiding device are arranged, so that the newly added wellhead can be effectively supported.
Drawings
Fig. 1 is a perspective view of a first boss type supporting device in the utility model.
Fig. 2 is a perspective view of a first wellhead guide of the present utility model.
Fig. 3 is a perspective view of a second boss type supporting device in the utility model.
Fig. 4 is a perspective view of a second wellhead guide of the present utility model.
Fig. 5 is a perspective view of a platform of the utility model with a fixed platform internal hanging wellhead installed in the wellhead area.
Detailed Description
The utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the same and to refer to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or other elements or groups thereof.
As shown in fig. 1-5, in order to achieve the above object, the present utility model adopts the following technical solutions, including:
example 1
A fixed-platform on-hook wellhead assembly, comprising:
the first boss type supporting device 110 is installed between the jacket underwater rod pieces 31 and is used for supporting the lower part of the newly added wellhead; wherein the first boss type supporting means 110 comprises; the first guide cylinder 111 is used for guiding the newly added wellhead and supporting the lower part of the newly added wellhead; the first support rod 112 is composed of a cross rod 112a and a vertical rod 112b which are connected in a T shape, the free end of the vertical rod 112b is connected with the first guide cylinder 111, and two ends of the cross rod 112a are respectively provided with a first pipe clamp 113 for fixing the first guide cylinder 111 between the jacket rods 31 which are arranged in parallel on the jacket horizontal layer 3. The first wellhead guiding device 120 is arranged on the upper deck 4 and is positioned right above the first boss type supporting device 110, and is used for replacing the profile steel 41 which is broken by crossing at the original position on the upper deck 4 and supporting the upper part of the newly added wellhead; the first wellhead guide 120 includes: a second guide cylinder 121 disposed on the upper deck 4 and located right above the first guide cylinder 111, for penetrating the section steel interfering with the newly added wellhead and supporting the upper portion of the newly added wellhead; and first butt-joint beams 122 which are arranged at two ends of the second guide cylinder 121 and are respectively welded with the profile steel 41 which is penetrated and broken on the upper deck 4, and are used for fixing the second guide cylinder 121 on the upper deck 4. Preferably, a first flare structure 111a and a first flare structure 121a are provided at upper ports of the first guide cylinder 111 and the second guide cylinder 121, respectively. As a further preferred aspect, a plurality of first wedges 114 and 123 are disposed at the first bell mouth structure 111a and the first bell mouth structure 121a, respectively, and are configured to clamp the newly added wellhead. Preferably, a first ring plate 121b extending outward is provided at a lower edge of the second guide cylinder 121. Further preferably, a plurality of first reinforcing ribs 111b are circumferentially arranged on the outer wall of the first guide cylinder 111.
Firstly, according to the design scheme, the jacket is verified on horizontal layers one by one, the position of an internal hanging wellhead is determined, the first boss type supporting device 110 is transported to a platform through a barge, the first boss type supporting device 110 is hoisted into the water by utilizing a platform crane, at the moment, the first pipe clamp 113 is in an open state, the first boss type supporting device 110 is pulled to an installation position through auxiliary installation equipment such as a floating bag, accurate positioning is performed, the first pipe clamp 113 is closed, and bolts are screwed. Then, the first wellhead guide device 120 is transported to a platform position through a barge, the platform crane is used for hoisting the first wellhead guide device 120 on the platform, the support is dumped to the vicinity of the installation position through a conventional dumping tool, the structure of the installation position is cut off, the first wellhead guide device 120 is dumped into the installation position, and welding and fixing are performed after accurate positioning. Finally, the new wellhead is lowered, and the new wellhead is further fixed by installing the first wedge 114 at the first bell mouth structure 111a and the first bell mouth structure 121a.
Example 2
A fixed-platform on-hook wellhead assembly, comprising: a second boss type supporting device 210 which is erected on one side of the jacket rod 31 of the lower deck 3 and is used for supporting the lower part of the newly added wellhead; the second boss type supporting device 210 includes: the third guiding cylinder 211 is used for allowing the newly added wellhead to pass through and supporting the lower part of the newly added wellhead; one end of the second supporting rod 212 is connected with the third guiding cylinder 211, and the other end of the second supporting rod 212 is connected with the second pipe clamp 213, so as to fix the third guiding cylinder 211 on one side of the jacket rod 31 of the lower deck 3; the second wellhead guiding device 220 is arranged on the upper deck 4 and is positioned above the second boss type supporting device 220, and is used for replacing the profile steel 41 which is broken by crossing at the original position on the upper deck 4 and supporting the upper part of the newly added wellhead; wherein the second wellhead guide 220 comprises; a fourth guide cylinder 221 provided on the upper deck 4 and located right above the third guide cylinder 211, for penetrating the section steel interfering with the newly added wellhead and supporting the upper portion of the newly added wellhead; and second butt-joint beams 222 provided at both ends of the fourth guide cylinder 221, the both ends being welded to the section steel 41 on the upper deck 4, respectively, for fixing the fourth guide cylinder 221 to the upper deck 4. As a preference, further comprising: the anti-torsion auxiliary rod 214 has one end connected with the middle part of the second support rod 212, and the other end of the anti-torsion auxiliary rod 214 is connected with an arc plate 214a, and the arc plate 214a is used for being erected on the adjacent jacket rod 31. As a further preferred aspect, a second flare structure 211a and a second flare structure 221a are provided at upper ports of the third guide cylinder 211 and the fourth guide cylinder 221, respectively; a plurality of second wedges 215 and 223 are arranged at the second bell mouth structure 211a and the second bell mouth structure 221a in a circumferential arrangement, and are used for clamping the newly added wellhead. Preferably, a second ring plate 211b extending outward is provided at the lower edge of the fourth guide cylinder 221. Further preferably, a plurality of second reinforcing ribs 211b are circumferentially arranged on the outer wall of the third guide cylinder 211.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. A fixed platform internal hanging wellhead assembly, comprising:
the first boss type supporting device is arranged between the underwater rod pieces of the jacket and used for newly increasing the underwater support of the wellhead;
the first wellhead guide device is arranged on the upper deck and is positioned right above the first boss type supporting device, and is used for reinforcing the cut original steel after penetrating through the steel which interferes with the newly added wellhead and supporting the upper part of the newly added wellhead;
wherein the first boss type supporting device comprises;
the first guide cylinder is used for guiding the newly added wellhead and fixing the lower part of the newly added wellhead;
the first support rod consists of a cross rod and a vertical rod which are connected in a T shape, the free end of the vertical rod is connected with the first guide cylinder, and first pipe clamps are respectively arranged at the two ends of the cross rod and used for fixing the first guide cylinder between jacket rod pieces which are arranged in parallel on a lower deck;
the first wellhead guide device includes;
the second guide cylinder is arranged on the upper deck and is positioned right above the first guide cylinder, and is used for reinforcing the cut original steel after penetrating through the steel which interferes with the newly added wellhead and supporting the upper part of the newly added wellhead;
and the first butt-joint beams are arranged at two ends of the second guide cylinder and are respectively welded with the profile steel on the upper deck, and are used for fixing the second guide cylinder on the upper deck.
2. The fixed-platform internal hanging wellhead assembly of claim 1, wherein: and the upper ports of the first guide cylinder and the second guide cylinder are respectively provided with a first horn mouth structure.
3. The fixed-platform on-hook wellhead assembly of claim 2, wherein: and a plurality of first wedges which are distributed according to the circumference are arranged at the first bell mouth structure and are used for clamping the newly-added wellhead.
4. A fixed-platform on-board wellhead according to claim 1 or 2, characterised in that: the lower edge of the second guide cylinder is provided with a first annular plate which extends outwards.
5. A fixed-platform on-board wellhead according to claim 1 or 2, characterised in that: the outer wall of the first guide cylinder is provided with a plurality of first reinforcing ribs which are circumferentially distributed.
6. A fixed platform internal hanging wellhead assembly, comprising:
the second boss type supporting device is arranged on one side of the jacket underwater rod piece and used for newly increasing the underwater support of the wellhead;
the second wellhead guide device is arranged on the upper deck and is positioned right above the second boss type supporting device, and is used for reinforcing the cut original steel after penetrating through the steel which interferes with the newly added wellhead and supporting the upper part of the newly added wellhead;
wherein the second boss type supporting device comprises;
the third guide cylinder is used for guiding the newly added wellhead and supporting the lower part of the newly added wellhead;
one end of the second supporting rod is connected with the third guide cylinder, and the other end of the second supporting rod is connected with the second pipe clamp and is used for fixing the third guide cylinder on one side of a jacket rod piece of the lower deck;
the second wellhead guide includes;
the fourth guide cylinder is arranged on the upper deck and is positioned right above the third guide cylinder, and is used for penetrating through the profile steel interfering with the newly added wellhead and fixing the upper part of the newly added wellhead;
and the second butt joint beam is arranged at two ends of the fourth guide cylinder, and the two ends of the second butt joint beam are respectively welded with the profile steel on the upper deck and are used for fixing the fourth guide cylinder on the upper deck.
7. The fixed-platform on-hook wellhead assembly of claim 6, further comprising:
the torsion-preventing auxiliary rod is characterized in that one end of the torsion-preventing auxiliary rod is connected with the middle part of the second supporting rod, the other end of the torsion-preventing auxiliary rod is connected with an arc-shaped plate, and the arc-shaped plate is used for being erected on an adjacent jacket rod piece.
8. The fixed-platform on-hook wellhead assembly of claim 6, wherein: the upper ports of the third guide cylinder and the fourth guide cylinder are respectively provided with a second bell mouth structure; and a plurality of second wedges which are distributed according to the circumference are arranged at the second bell mouth structure and are used for clamping the newly-added wellhead.
9. The fixed-platform on-hook wellhead assembly of claim 6, wherein: and a second ring plate extending outwards is arranged at the lower edge of the fourth guide cylinder.
10. The fixed-platform on-hook wellhead assembly of claim 6, wherein: and a plurality of second reinforcing ribs distributed along the circumference are arranged on the outer wall of the third guide cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320904747.4U CN220133941U (en) | 2023-04-21 | 2023-04-21 | Fixed platform internal hanging wellhead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320904747.4U CN220133941U (en) | 2023-04-21 | 2023-04-21 | Fixed platform internal hanging wellhead device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220133941U true CN220133941U (en) | 2023-12-05 |
Family
ID=88961814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320904747.4U Active CN220133941U (en) | 2023-04-21 | 2023-04-21 | Fixed platform internal hanging wellhead device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220133941U (en) |
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2023
- 2023-04-21 CN CN202320904747.4U patent/CN220133941U/en active Active
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