CN117026921B - A method for installing wellhead plates - Google Patents
A method for installing wellhead platesInfo
- Publication number
- CN117026921B CN117026921B CN202310805556.7A CN202310805556A CN117026921B CN 117026921 B CN117026921 B CN 117026921B CN 202310805556 A CN202310805556 A CN 202310805556A CN 117026921 B CN117026921 B CN 117026921B
- Authority
- CN
- China
- Prior art keywords
- wellhead
- upright post
- sheets
- plates
- deck
- 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.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
- E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0039—Methods for placing the offshore structure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0039—Methods for placing the offshore structure
- E02B2017/0047—Methods for placing the offshore structure using a barge
-
- 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
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a wellhead sheet mounting method which comprises the following steps of S1, prefabricating wellhead sheets and deck sheets on land, S2, enabling an upper upright post to penetrate through the deck sheets and reinforcing the deck sheets by using lacing wires, S3, mounting sliding shoes at the middle of the bottom surface of the bottommost deck sheet, mounting wellhead sheets on two sides of the wellhead sheets through temporary supporting tubes, connecting the wellhead sheets with the bottommost deck sheet through a chain, S4, placing supporting tubes on the bottommost deck sheet, moving the whole assembly to a transport ship through the sliding shoes, S5, driving the transport ship to a proper position on the sea, enabling the upper upright post to be aligned with a lower upright post and slowly lowering and connecting the lower upright post, S6, cutting off the temporary supporting tubes, lowering the chain to a proper position, welding the supporting tubes in the position of the original temporary supporting tubes, wherein the wellhead sheets are located at the proper position of the upper ends of oil guide tubes, S7, and driving away the transport ship to finish the operation. The invention adopts land integrated construction, finishes prefabrication of wellhead plates on the shore and avoids collision with a transport ship and an oil guide pipe when being installed in place.
Description
Technical Field
The invention relates to the technical field of ocean engineering, in particular to a wellhead piece mounting method.
Background
At present, in offshore oil extraction operation, a block is core equipment of ocean engineering, an integral layered building structure, in the land construction process, a plurality of layers of deck plates are often divided into prefabricated layers according to equipment capacity of a construction site, then the deck plates are hoisted in place layer by layer, the wellhead plates are platform structures of the bottommost offshore oil extraction operation of the block, the offshore end of the block is flush with christmas trees at the top end of a jacket after being finally in place, an operation platform is provided for later oilfield operators, and because the wellhead plates are formed by a plurality of small-size small-tonnage small deck plates which are independently placed on ships, the small deck plates are assembled and welded through chain blocks to complete the assembly work of the wellhead plates.
Disclosure of Invention
The invention aims to provide a wellhead piece installation method, which adopts land integrated construction to finish wellhead piece prefabrication on the shore and avoid collision with a transport ship and an oil guide pipe when being installed in place.
In order to achieve the purpose of the invention, the invention provides a wellhead sheet mounting method, which comprises the following steps:
S1, prefabricating wellhead plates and deck plates on land;
S2, enabling the upper upright post to penetrate through the deck plates, and reinforcing the deck plates by tie bars;
s3, a sliding shoe is arranged in the middle of the bottom surface of the bottommost deck plate, wellhead plates are arranged on two sides of the sliding shoe through temporary supporting tubes, and the wellhead plates are connected with the bottommost deck plate through chain links;
s4, placing the support tube on the bottommost armor plate, and moving the whole assembly to a transport ship through a skid shoe;
S5, driving the transport ship to a proper position on the sea, aligning the upper upright post with the lower upright post, and slowly lowering and connecting the upper upright post and the lower upright post;
s6, cutting off the temporary support tube, lowering the chain to a proper position, and welding the support tube in the S4 at the position of the original temporary support tube, wherein the wellhead piece is positioned at a proper position at the upper end of the oil guide tube;
And S7, driving away the transport ship to finish the operation.
As the preferable technical scheme of the invention, the wellhead piece is formed by welding 12 small deck pieces through a chain block.
As a preferable technical scheme of the invention, the diameter of the lower upright post is larger than that of the upper upright post.
As a preferred embodiment of the present invention, the support tube has a length greater than the temporary support tube.
Compared with the prior art, the invention provides a wellhead sheet mounting method, which has the following beneficial effects:
The invention adopts land integrated construction, and the mode of lowering in place after pre-hanging, avoids a great deal of operation of folding the small pieces at sea, reduces the participation of personnel in rivet welding, greatly reduces the construction strength and has higher efficiency, and the temporary support tube is arranged to prevent the inlet piece from collision with a transport ship and an oil guide tube in the process of installing in place, so that the safety is higher.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a wellhead plate according to the present invention;
Fig. 3 is a schematic diagram of a temporary support tube and support tube of the present invention in comparison.
1 Is a sliding shoe, 2 is a wellhead sheet, 3 is a temporary supporting tube, 4 is a armor sheet, 5 is a lacing wire, 6 is an upper upright post, 7 is a sea level, 8 is a transport ship, 9 is a lower upright post, 10 is an oil guide tube, 11 is a supporting tube, 12 is a chain block, and 13 is a armor sheet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, an embodiment of the present invention provides a wellhead plate installation method, which includes the following steps:
s1, prefabricating a wellhead sheet 2 and a deck sheet 4 on land;
S2, enabling the upper upright post 6 to penetrate through the armor plates 4, and reinforcing the armor plates 4 by using lacing wires 5;
S3, a sliding shoe 1 is arranged in the middle of the bottom surface of the bottommost armor plate 4, wellhead plates 2 are arranged on two sides of the sliding shoe through temporary supporting tubes 3, and the wellhead plates 2 are also connected with the bottommost armor plate 4 through a chain 12;
s4, placing the support tube 11 on the bottommost armor plate 4, and moving the whole assembly onto the transport ship 8 through the skid shoes 1;
S5, driving the transport ship 8 to a proper position on the sea, aligning the upper upright post 6 with the lower upright post 9 and slowly lowering and connecting;
s6, cutting off the temporary support tube 3, lowering the chain 12 to a proper position, and welding the support tube 11 in the S4 at the position of the original temporary support tube 3, wherein the wellhead piece 2 is positioned at a proper position at the upper end of the oil guide tube 10;
and S7, the transport ship 8 is driven away, and the operation is completed.
In one embodiment of the invention, the wellhead plate 2 is formed by welding 12 small deck plates 13 through a chain block.
In one embodiment of the invention, the lower upright 9 has a larger diameter than the upper upright 6.
In one embodiment of the invention, the support tube 11 is longer than the temporary support tube 3.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.
Claims (4)
1. The wellhead piece installation method is characterized by comprising the following steps of:
s1, prefabricating a wellhead sheet (2) and a deck sheet (4) on land;
S2, enabling the upper upright post (6) to penetrate through the armor plates (4), and reinforcing the armor plates (4) by using lacing wires (5);
s3, a sliding shoe (1) is arranged in the middle of the bottom surface of the bottommost armor plate (4), wellhead plates (2) are arranged on two sides of the sliding shoe through temporary supporting tubes (3), and the wellhead plates (2) and a chain block (12) are connected with the bottommost armor plate (4);
S4, placing the support tube (11) on the bottommost armor plate (4), and moving the whole assembly onto a transport ship (8) through the skid shoes (1);
S5, driving the transport ship (8) to a proper offshore position, aligning the upper upright post (6) with the lower upright post (9) and slowly lowering and connecting the upper upright post and the lower upright post;
S6, cutting off the temporary support tube (3), lowering the chain block (12) to a proper position, and welding the support tube (11) in the S4 at the position of the original temporary support tube (3), wherein the wellhead sheet (2) is positioned at a proper position at the upper end of the oil guide tube (10);
and S7, driving away the transport ship (8) to finish the operation.
2. A method of wellhead installation according to claim 1, wherein:
The wellhead piece (2) is formed by welding 9 small deck pieces (13) through a chain block.
3. A method of wellhead installation according to claim 1, wherein:
the diameter of the lower upright post (9) is larger than that of the upper upright post (6).
4. A method of wellhead installation according to claim 1, comprising:
the length of the supporting tube (11) is longer than that of the temporary supporting tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310805556.7A CN117026921B (en) | 2023-07-03 | 2023-07-03 | A method for installing wellhead plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310805556.7A CN117026921B (en) | 2023-07-03 | 2023-07-03 | A method for installing wellhead plates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117026921A CN117026921A (en) | 2023-11-10 |
| CN117026921B true CN117026921B (en) | 2026-01-16 |
Family
ID=88625224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310805556.7A Active CN117026921B (en) | 2023-07-03 | 2023-07-03 | A method for installing wellhead plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117026921B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204727238U (en) * | 2015-05-15 | 2015-10-28 | 中国海洋石油总公司 | The support frame of jacket, chunk ro-ro transport |
| CN218540638U (en) * | 2022-09-13 | 2023-02-28 | 海洋石油工程（青岛）有限公司 | Be used for offshore installation of well head platform to use limit structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100452595B1 (en) * | 2001-05-08 | 2004-10-14 | 현대중공업 주식회사 | Method for Installation of an Offshore Platforms on a Substructure Without the Impact and the Load Concentration |
| CN101402392A (en) * | 2008-11-21 | 2009-04-08 | 中国海洋石油总公司 | Ocean platform mounting method and special installation equipment therefor |
| KR20130006527U (en) * | 2012-05-03 | 2013-11-13 | 현대중공업 주식회사 | Support guide structure of lifting frame for deck lift offshore structure |
| JP7340894B2 (en) * | 2019-08-23 | 2023-09-08 | 山▲東▼鼎盛精工股▲フン▼有限公司 | Single Upright Pole Moored Wellhead Production Work Platform |
-
2023
- 2023-07-03 CN CN202310805556.7A patent/CN117026921B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204727238U (en) * | 2015-05-15 | 2015-10-28 | 中国海洋石油总公司 | The support frame of jacket, chunk ro-ro transport |
| CN218540638U (en) * | 2022-09-13 | 2023-02-28 | 海洋石油工程（青岛）有限公司 | Be used for offshore installation of well head platform to use limit structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117026921A (en) | 2023-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101151091B1 (en) | Auxiliary float of floating structure and method for remodeling floating structure | |
| US4666340A (en) | Offshore platform with removable modules | |
| US9068316B2 (en) | Method and apparatus for elevating a marine platform | |
| CN110984004B (en) | Method for dismantling lower supporting structure of bridge | |
| CN101643110B (en) | One-sided cantilever type water exploration platform system | |
| KR101121477B1 (en) | System and method of constructing drilling derrick utilizing tower crane mast | |
| CN102482860A (en) | Offshore support structure and associated method of installing | |
| CN102720140A (en) | Large-span prestress concrete continuous beam deepwater pier construction process | |
| CN102587363A (en) | Method for assembling truss framed leg of self-elevating drilling platform | |
| US4812080A (en) | Offshore platform jacket and method of installation | |
| US3094847A (en) | Offshore platform structure | |
| CN102817341A (en) | Construction method for segmented installation of offshore anemometer tower and combination of high-altitude manufactured parts for assembly | |
| EP0234874A2 (en) | Offshore platforms | |
| US20160326707A1 (en) | Method and appartus for elevating a marine platform | |
| CN1174584A (en) | Offshore platform with buoyant rig auxiliary supports | |
| US5536117A (en) | Offshore tower structure and method of installating the same | |
| KR20090076796A (en) | Simultaneous drying of one or more semi-submersible rigs using transverse skidding | |
| CN117026921B (en) | A method for installing wellhead plates | |
| CN102582786A (en) | Building process for deep sea spar platform | |
| KR102139722B1 (en) | Cofferdam Construction Method using Connection of Steel Pipe Modules | |
| WO2005035354A1 (en) | A method of constructing a semi-submersible vessel using dry dock mating | |
| RU41032U1 (en) | TECHNOLOGICAL COMPLEX FOR CONSTRUCTION OF HYDROTECHNICAL STRUCTURE | |
| RU2191864C2 (en) | Complex for equipment of hydrocarbon offshore field | |
| US6039507A (en) | Method and device for assembling cluster platforms | |
| US3546889A (en) | Construction of multiple pipe risers to offshore platforms |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |