CN220226794U - Two types of oil spilling prevention covers for wellhead area of ocean platform - Google Patents
Two types of oil spilling prevention covers for wellhead area of ocean platform Download PDFInfo
- Publication number
- CN220226794U CN220226794U CN202320780853.6U CN202320780853U CN220226794U CN 220226794 U CN220226794 U CN 220226794U CN 202320780853 U CN202320780853 U CN 202320780853U CN 220226794 U CN220226794 U CN 220226794U
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- CN
- China
- Prior art keywords
- oil spill
- cover
- oil
- annular
- fixed
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- 230000002265 prevention Effects 0.000 title claims abstract description 27
- 239000003305 oil spill Substances 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000003921 oil Substances 0.000 abstract description 28
- 241000191291 Abies alba Species 0.000 abstract description 7
- 239000000346 nonvolatile oil Substances 0.000 abstract description 5
- 235000004507 Abies alba Nutrition 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses two types of anti-overflow oil covers of an ocean platform wellhead area, which are arranged between a water-stop sleeve and a block deck, and comprise a fixed anti-overflow oil cover or a detachable anti-overflow oil cover, wherein an upper opening of an annular umbrella-shaped structure of the fixed anti-overflow oil cover can be tightly sleeved on the water-stop sleeve, and a circular water-retaining structure which can be tightly attached to the block deck is tightly fixed on the inner side of a lower opening of the annular umbrella-shaped structure; the detachable oil spill cover comprises a first oil spill cover and a second oil spill cover, and the first oil spill cover and the second oil spill cover are detachably sleeved on the waterproof sleeve through fastening structures; the fixed oil spill prevention cover and the detachable oil spill prevention cover are respectively applicable to two conditions of not being installed and being installed of the christmas tree on the water-stop sleeve, and the device can prevent oil spill and is convenient to install.
Description
Technical Field
The utility model relates to the technical field of ocean engineering, in particular to two types of oil spill prevention covers for wellhead areas of ocean platforms.
Background
The riser on the ocean platform extends from the jacket to the block, and the christmas tree is installed at the top of the riser. Because the motion of the water-stop sleeve and the block are asynchronous, a certain gap is designed between the water-stop sleeve and the block deck in a non-consolidation mode to ensure the safety of the structure, and oil stains on the christmas tree can be discharged into the sea along the gap. The condition that greasy dirt is discharged out of the sea is not allowed, and the environmental protection requirement of the project is not met. However, no product is available on the market for spill shields suitable for wellhead areas, and therefore, a suitable spill shield needs to be designed to avoid oil contamination from the sea.
Disclosure of Invention
The utility model aims to solve the technical problem of providing two oil spill prevention covers which are suitable for christmas trees which are not installed or are installed on a water-stop casing of a wellhead area of an ocean platform.
In order to solve the technical problems, the utility model provides two types of anti-overflow oil covers of an ocean platform wellhead area, which are arranged between a water-stop sleeve and a block deck, and comprise a fixed anti-overflow oil cover or a detachable anti-overflow oil cover, wherein the fixed anti-overflow oil cover comprises an annular umbrella-shaped structure, the diameter of an upper opening of the annular umbrella-shaped structure is smaller than that of a lower opening, the upper opening can be tightly sleeved on the water-stop sleeve, the top end of a circular water-stop structure is tightly fixed on the inner side of the lower opening of the annular umbrella-shaped structure, and the bottom end of the circular water-stop structure can be tightly attached to the block deck; the detachable oil spill cover comprises a first oil spill cover and a second oil spill cover, the first oil spill cover and the second oil spill cover comprise umbrella-shaped semi-annular structures, the diameter of an upper opening of each semi-annular structure is smaller than that of a lower opening, a semicircular water retaining structure is tightly fixed on the inner side of the lower opening, fastening structures are arranged at two ends of each semi-annular structure, and the first oil spill cover and the second oil spill cover can be detached and tightly sleeved on a waterproof sleeve through the fastening structures.
According to a preferred embodiment of the utility model, the circular water deflector is arranged parallel to the riser.
According to a preferred embodiment of the utility model, the annular umbrella-shaped structure is connected with the waterproof sleeve in a welding mode.
According to a preferred embodiment of the utility model, the first and second oil spill shields are symmetrically distributed along the axial direction of the riser sleeve.
According to a preferred embodiment of the utility model, the fastening structure comprises fastening lugs, bolts and nuts, wherein the fastening lugs are fixed at two ends of the semi-annular structure, a plurality of bolt holes are formed in the fastening lugs, and the bolts penetrate through the bolt holes and are fixed through the nuts.
According to a preferred embodiment of the utility model, the fastening lugs are arranged perpendicularly to the semi-annular structure.
According to a preferred embodiment of the utility model, the circular water retaining structure is a cylindrical structure.
The utility model has the technical effects that:
1. the utility model relates to two types of oil spill prevention covers for wellhead areas of ocean platforms, which are designed into two devices of a fixed oil spill prevention cover or a detachable oil spill prevention cover, wherein the fixed oil spill prevention cover comprises an annular umbrella-shaped structure, an upper opening of which can be tightly sleeved on a water stop sleeve, and a circular water blocking structure, which can be tightly attached to a block deck, is tightly fixed on the inner side of a lower opening; the detachable oil spill prevention cover comprises a first oil spill prevention cover and a second oil spill prevention cover, and the first oil spill prevention cover and the second oil spill prevention cover are detachably and tightly sleeved on the waterproof casing through fastening structures, so that the beneficial effect of oil spill prevention suitable for the situation that the christmas tree on the waterproof casing of the wellhead area of the ocean platform is not installed or is installed is achieved.
2. According to the two types of the anti-overflow oil cover for the wellhead area of the ocean platform, the anti-overflow oil cover can be tightly fixed around the waterproof casing, and the anti-overflow oil cover is simple in construction and convenient to install.
Drawings
FIG. 1 is a longitudinal cross-sectional view of two versions of the utility model of a fixed spill cap for a wellhead area of an offshore platform;
FIG. 2 is a transverse cross-sectional view of two versions of the utility model of a fixed spill-proof oil cap for a wellhead area of an offshore platform;
FIG. 3 is a longitudinal cross-sectional view of a removable spill cap of the two versions of the utility model for a wellhead area of an offshore platform;
figure 4 is a transverse cross-sectional view of a removable spill cap of the two versions of the utility model for a wellhead area of an offshore platform.
Reference numerals: 1-a water-stop sleeve; 2-chunking decks; 3-an annular umbrella-like structure; 4-a circular water retaining structure; 5-a first oil spill prevention cover; 6-a second oil spill prevention cover; 7-semi-annular structure; 8-fastening structure; 9-a semicircular water retaining structure; 10-fastening the ear plate; 11-bolt holes.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the utility model, so that those skilled in the art may better understand the utility model and practice it.
As shown in fig. 1 to 4, two types of anti-overflow oil covers of an ocean platform wellhead area are arranged between a water-stop sleeve 1 and a block deck 2, and comprise a fixed anti-overflow oil cover or a detachable anti-overflow oil cover, wherein the fixed anti-overflow oil cover comprises an annular umbrella-shaped structure 3, the diameter of an upper opening of the annular umbrella-shaped structure 3 is smaller than that of a lower opening, the upper opening can be tightly sleeved on the water-stop sleeve 1, the top end of a circular water-stop structure 4 is tightly fixed on the inner side of the lower opening of the annular umbrella-shaped structure 3, and the bottom end of the circular water-stop structure 4 can be tightly attached to the block deck 2; the detachable oil spill cover comprises a first oil spill cover 5 and a second oil spill cover 6, the first oil spill cover 5 and the second oil spill cover 6 respectively comprise an umbrella-shaped semi-annular structure 7, the diameter of an upper opening of the semi-annular structure 7 is smaller than that of a lower opening, a semicircular water retaining structure 9 is tightly fixed on the inner side of the lower opening, fastening structures 8 are respectively arranged at two ends of the semi-annular structure 7, and the first oil spill cover 5 and the second oil spill cover 6 are detachably sleeved on the waterproof casing 1 through the fastening structures 8.
The two types of oil spill-proof covers of the wellhead area of the ocean platform are suitable for the position of the water-stop sleeve 1 of the wellhead area of the ocean platform, and the oil production tree is installed at the top of the water-stop sleeve 1, so that the condition that oil stains on the oil production tree are discharged out of the sea is not allowed due to the environmental protection requirement. The utility model discloses two anti-overflow oil covers for wellhead areas of ocean platforms, which are used for avoiding greasy dirt from being discharged out of the sea, namely a fixed anti-overflow oil cover and a detachable anti-overflow oil cover.
As shown in fig. 1 and 2, the fixed oil spill prevention cover is suitable for the situation that the christmas tree above the water-stop sleeve 1 is not installed yet, the fixed oil spill prevention cover consists of an annular umbrella-shaped structure 3 at the upper part and a round water retaining structure 4 at the lower part, and the oil spill prevention cover is welded around the water-stop sleeve 1, so that the construction is simple and the oil spill prevention effect is good. The circular water retaining structure 4 is a cylindrical structure and is arranged in parallel with the water-stop sleeve 1; the weight of the annular umbrella-shaped structure 3 is about twenty to forty kilograms, and the circular water retaining structure 4 can be used as a support during installation, so that manual installation is facilitated.
As shown in fig. 3 and 4, the detachable oil spill prevention cover is suitable for the situation that the christmas tree above the water-stop sleeve 1 is installed, and the detachable oil spill prevention cover is composed of two semi-umbrella-shaped structures 7 on the upper part and two semi-circular water retaining structures 9 on the lower part, the semi-circular umbrella-shaped structures 7 and the semi-circular water retaining structures 9 are not welded, and the semi-circular water retaining structures 9 can be used as supports during installation at the same time, so that the manual installation is convenient. The whole oil spill-proof cover is divided into two halves which are symmetrically distributed along the axial direction of the water-stop sleeve 1 and are connected by a fastening structure 8. The fastening structure 8 comprises fastening lug plates 10, bolts and nuts, wherein the fastening lug plates 10 are fixed at two ends of the semi-annular structure 7, a plurality of bolt holes 11 are formed in the fastening lug plates 10, and the bolts penetrate through the bolt holes 11 and are fixed through the nuts; the fastening lugs 10 are arranged perpendicularly to the semi-annular structure 7. Because the riser 1 and the tree already have oil and gas inside, no live welding is allowed. The part of the oil spill prevention cover is made into a bolt fixing detachable structure, so that the oil spill prevention cover can prevent oil spill and is convenient to install.
The above-described embodiments are merely preferred embodiments for fully explaining the present utility model, and the scope of the present utility model is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present utility model, and are intended to be within the scope of the present utility model. The protection scope of the utility model is subject to the claims.
Claims (7)
1. The two types of anti-overflow oil covers of the wellhead area of the ocean platform are arranged between the water-stop sleeve and the block deck and comprise fixed anti-overflow oil covers or detachable anti-overflow oil covers, and are characterized in that the fixed anti-overflow oil covers comprise annular umbrella-shaped structures, the diameter of an upper opening of each annular umbrella-shaped structure is smaller than that of a lower opening, the upper opening can be tightly sleeved on the water-stop sleeve, the top end of a circular water-stop structure is tightly fixed on the inner side of the lower opening of each annular umbrella-shaped structure, and the bottom end of each circular water-stop structure can be tightly attached to the block deck; the detachable oil spill cover comprises a first oil spill cover and a second oil spill cover, the first oil spill cover and the second oil spill cover comprise umbrella-shaped semi-annular structures, the diameter of an upper opening of each semi-annular structure is smaller than that of a lower opening, a semicircular water retaining structure is tightly fixed on the inner side of the lower opening, fastening structures are arranged at two ends of each semi-annular structure, and the first oil spill cover and the second oil spill cover can be detached and tightly sleeved on a waterproof sleeve through the fastening structures.
2. Two types of offshore platform wellhead area oil spill-proof covers according to claim 1, characterized in that the circular water retaining structure is arranged in parallel with a riser.
3. The two-type offshore platform wellhead area oil spill-proof cover according to claim 1, wherein the annular umbrella-shaped structure is welded with the water-stop sleeve.
4. The two types of offshore platform wellhead area oil spill caps of claim 1, wherein the first and second oil spill caps are symmetrically distributed along the axis of the riser.
5. The two-type offshore platform wellhead area oil spill prevention cover according to claim 1, wherein the fastening structure comprises fastening lugs, bolts and nuts, the fastening lugs are fixed at two ends of the semi-annular structure, a plurality of bolt holes are formed in the fastening lugs, and the bolts penetrate through the bolt holes and are fixed through the nuts.
6. The two-style offshore platform wellhead area oil spill guard of claim 5, wherein the fastening lugs are disposed perpendicular to the semi-annular structure.
7. Two types of offshore platform wellhead area oil spill-proof covers according to claim 1, wherein the circular water retaining structure is a cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320780853.6U CN220226794U (en) | 2023-04-10 | 2023-04-10 | Two types of oil spilling prevention covers for wellhead area of ocean platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320780853.6U CN220226794U (en) | 2023-04-10 | 2023-04-10 | Two types of oil spilling prevention covers for wellhead area of ocean platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220226794U true CN220226794U (en) | 2023-12-22 |
Family
ID=89186890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320780853.6U Active CN220226794U (en) | 2023-04-10 | 2023-04-10 | Two types of oil spilling prevention covers for wellhead area of ocean platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220226794U (en) |
-
2023
- 2023-04-10 CN CN202320780853.6U patent/CN220226794U/en active Active
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