CN115613992B - Sealing and connecting device for operation interface of underwater dry-type oil production bin - Google Patents
Sealing and connecting device for operation interface of underwater dry-type oil production bin Download PDFInfo
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- CN115613992B CN115613992B CN202211601671.4A CN202211601671A CN115613992B CN 115613992 B CN115613992 B CN 115613992B CN 202211601671 A CN202211601671 A CN 202211601671A CN 115613992 B CN115613992 B CN 115613992B
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- Prior art keywords
- dry
- type oil
- operation interface
- connecting pipe
- wall
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- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
- E21B33/037—Protective housings therefor
Abstract
The invention relates to the technical field of oilfield exploitation, in particular to a sealing and connecting device for an operation interface of an underwater dry-type oil production bin, which comprises a dry-type oil production bin operation interface, a sealing plug, a water-proof guide pipe and a connecting pipe, wherein the dry-type oil production bin operation interface is fixedly arranged at an operation opening at the top of the dry-type oil production bin, an interface snap spring ring groove is arranged on the outer wall of the dry-type oil production bin operation interface, the sealing plug is hermetically arranged at the operation opening of the dry-type oil production bin operation interface, the water-proof guide pipe is fixedly connected with the connecting pipe, a connecting pipe snap spring ring groove is formed in the inner wall of the lower part of the connecting pipe, an opening snap spring is clamped in the connecting pipe snap ring groove, a supporting table is fixedly arranged on the outer wall of the connecting pipe, a driving device is fixedly arranged on the supporting table, a cable is arranged on the driving device, and the other end of the cable penetrates through the connecting pipe to be connected with the end portion of the opening snap spring. The device provided by the invention is convenient for exploiting the oil field distributed in the shallow water area on the channel, avoids occupying the channel for a long time, can reduce the exploitation cost, and has the advantages of simple structure, convenient and quick operation and reliable performance.
Description
Technical Field
The application relates to the technical field of oilfield exploitation, in particular to an underwater dry-type oil production bin operation interface sealing and connecting device.
Background
In the oil field exploration process, the situation that the oil field is distributed on the channel is found, the channel is prevented from being occupied for a long time, the requirements of exploitation and navigation are met, and oil and gas production can be carried out in an exploitation mode of an underwater wellhead. However, in shallow water areas, the exploitation cost is too high by adopting an underwater wellhead mode, in order to save cost, an underwater dry-type oil production bin is adopted to cover oil production equipment installed after well drilling and completion, seawater is isolated, oil and gas production is carried out, conventional oil production equipment can be adopted in the mode, and the cost is lower. In the dry-type oil production bin, an operation interface is reserved at the upper part of each well for drilling and repairing operation, and how to ensure the sealing property and the opening convenience of the operation interface of the dry-type oil production bin needs corresponding structural design and technological measures to ensure.
Disclosure of Invention
The invention aims to solve the technical problem of providing a sealing and connecting device for an operation interface of an underwater dry-type oil production bin, which can conveniently realize the exploitation of oil fields distributed in shallow water areas on a channel, avoid occupying the channel for a long time, reduce the exploitation cost and ensure the convenience of exploitation.
The invention is realized by the following scheme:
the utility model provides an underwater dry-type oil production bin operation interface is sealed and connecting device, it includes dry-type oil production bin operation interface, sealing plug, water proof pipe and connecting pipe, dry-type oil production bin operation interface fixed mounting is in the operation mouth department at dry-type oil production bin top, and dry-type oil production bin operation interface outer wall is equipped with interface jump ring annular, sealing plug seal mounting is in dry-type oil production bin operation interface operation mouth department, the connecting pipe jump ring annular has been seted up on water proof pipe and connecting pipe fixed connection and the connecting pipe lower part inner wall, the opening jump ring is equipped with to the joint in the connecting pipe jump ring annular, fixed mounting has a brace table on the connecting pipe outer wall, fixed mounting has drive arrangement on the brace table, the last hawser of installing of drive arrangement, the hawser other end passes connecting pipe and opening jump ring end connection.
Furthermore, a groove is formed in the upper surface of the sealing plug, a locking ring is fixedly installed in the groove and comprises a bottom plate and a ring wall, the bottom plate is fixedly connected with the sealing plug through a bolt, a plurality of locking teeth are arranged at the bottom of the inner wall of the ring wall, and the height of the locking teeth is higher than that of the bottom plate.
Further, a connecting plate is arranged at the bottom of the sealing plug, and the connecting plate, the sealing plug and the locking ring are fixedly connected together through the bolt.
Preferably, the driving device is a hydraulic cylinder.
And a sealing ring is arranged between the outer wall of the operation interface of the dry-type oil production bin and the inner wall of the connecting pipe above the interface snap spring ring groove.
Furthermore, an upper inclined plane limiting step and a lower inclined plane limiting step which are matched with each other are arranged between the outer wall of the dry-type oil extraction bin operation interface and the inner wall of the connecting pipe.
Furthermore, a protective cap is covered on the dry-type oil extraction bin operation interface in a non-operation period, and an upper inclined plane limiting step and a lower inclined plane limiting step which are matched with each other are arranged between the outer wall of the dry-type oil extraction bin operation interface and the inner wall of the protective cap.
Advantageous effects of the invention
The invention provides a sealing and connecting device for an operation interface of an underwater dry-type oil extraction bin, which has the following advantages:
1. the method can conveniently realize the exploitation of the oil fields distributed in the shallow water area on the channel, avoid occupying the channel for a long time and reduce the exploitation cost;
2. simple structure, convenient and fast operation and reliable performance.
Drawings
FIG. 1 is a schematic diagram of the connection between an operation interface of a dry oil production bin and a connecting pipe;
FIG. 2 is a schematic view of a dry-recovery silo operational interface not being opened;
FIG. 3 is a schematic view of a fishing tool.
In the figure: 1-connecting pipe clamp spring ring groove, 2-locking tooth, 3-water-resisting guide pipe, 4-connecting pipe, 5-sealing plug, 6-sealing ring, 7-opening clamp spring, 8-supporting table, 9-dry oil production bin, 10-connecting plate, 11-cable, 12-driving device, 13-dry oil production bin operation interface, 14-bolt, 15-locking ring, 16-interface clamp spring ring groove, 17-upper inclined plane limit step, 18-lower inclined plane limit step, 19-protective cap, 20-mounting cylinder and 21-barb.
Detailed Description
The utility model provides an underwater dry-type oil production storehouse operation interface is sealed and connecting device, it includes dry-type oil production storehouse operation interface 13, sealing plug 5, water proof pipe 3 and connecting pipe 4, dry-type oil production storehouse operation interface fixed mounting is in the operation mouth department at 9 tops of dry-type oil production storehouse, and dry-type oil production storehouse operation interface outer wall is equipped with interface jump ring annular 16, sealing plug seal mounting is in dry-type oil production storehouse operation interface operation mouth department, connecting pipe jump ring annular 1 has been seted up on water proof pipe and connecting pipe fixed connection and the connecting pipe lower part inner wall, connecting pipe jump ring annular inside callipers has opening jump ring 7, fixed mounting has a brace table 8 on the connecting pipe outer wall, and fixed mounting has drive arrangement 12 on the brace table, install hawser 11 on the drive arrangement, the hawser other end passes connecting pipe and opening jump ring end connection.
The invention protects the sealing and connecting device of the operation interface of the underwater dry-type oil extraction bin, the dry-type oil extraction bin is fixedly arranged at the operation port of the underwater oil extraction equipment (not shown), when the operation interface of the dry-type oil extraction bin is closed underwater, the sealing plug is hermetically arranged at the operation port of the operation interface of the dry-type oil extraction bin, and can prevent seawater from entering the dry-type oil extraction bin. When needing to exploit, with connecting pipe and water proof pipe fixed connection well earlier, then progressively transfer, make the connecting pipe slowly visit dry-type oil recovery storehouse operation kneck, at this moment, the drive arrangement action is tight the hawser, thereby make the hawser strut the opening jump ring, the opening jump ring is located connecting pipe jump ring annular, after the connecting pipe is slowly sat and put in place, the drive arrangement action makes the hawser be in the relaxed state, the opening jump ring replies to the natural condition because of losing the pulling force of hawser this moment, thereby partly get into interface jump ring annular and block connecting pipe and dry-type oil recovery storehouse operation interface, the home range between connecting pipe and the dry-type oil recovery storehouse operation interface has been restricted, the connecting pipe phenomenon of breaking away from is avoided appearing. After the connecting pipe is installed, the sealing plug is lifted out through a fishing tool, and then the operation interface of the dry-type oil extraction bin can be opened for extraction operation. The driving devices can be arranged into two groups, the mooring ropes are respectively connected with two ends of the opening clamp spring, or the driving devices are arranged into more groups and distributed on the circumference of the opening clamp spring.
The oil field exploitation device has the advantages that the oil field exploitation distributed in shallow water areas on the channel can be conveniently realized, the requirements of exploitation and navigation are both met, the channel occupation is avoided for a long time, the oil and gas production is carried out by adopting an underwater wellhead exploitation mode, the exploitation cost is greatly reduced, the structure is simple, the operation is convenient and fast, the performance is reliable, and the phenomenon that a connecting pipe is separated from the oil field can be prevented.
Further, the upper surface of the sealing plug is provided with a groove, a locking ring 15 is fixedly installed in the groove, the locking ring comprises a bottom plate and a ring wall, the bottom plate is fixedly connected with the sealing plug through a bolt 14, the bottom of the inner wall of the ring wall is provided with a plurality of locking teeth 2, and the height of the locking teeth is higher than that of the bottom plate.
When needing oil field exploitation, can install special fishing tool at the drilling rod lower extreme, fishing tool include installation section of thick bamboo 20 and with catch complex salvage portion, concrete shape is as shown in figure 3, be equipped with a plurality of barbs 21 that turn over upward in the salvage portion, the installation section of thick bamboo can the suit at the lower extreme of drilling rod, when fishing tool reachs the catch bottom, rotatory drilling rod, make the barb in the salvage portion get into the lock tooth of catch from the clearance between the lock tooth, make the barb hook lock tooth then lift the drilling rod and can extract the sealing plug from dry-type oil recovery storehouse operation kneck, thereby carry out the exploitation operation, it is very convenient and fast to operate.
Furthermore, the bottom of the sealing plug is provided with a connecting plate 10, the connecting plate, the sealing plug and the locking ring are fixedly connected together through the bolt, and the connecting plate is arranged to enable the connection among the connecting plate, the sealing plug and the locking ring to be more stable and reliable.
And optimally, the driving device is a hydraulic cylinder, so that the operation is safe and quick.
Further, a sealing ring 6 is arranged above the interface snap spring ring groove between the outer wall of the operation interface of the dry-type oil production bin and the inner wall of the connecting pipe, so that seawater is prevented from entering a gap between the outer wall of the operation interface of the dry-type oil production bin and the inner wall of the connecting pipe to corrode the opening snap spring.
Further, an upper inclined plane limiting step 17 and a lower inclined plane limiting step 18 which are matched with each other are arranged between the outer wall of the dry-type oil extraction bin operation interface and the inner wall of the connecting pipe, so that the connecting pipe can be conveniently and rapidly installed in place.
Further, a protective cap 19 is covered on the dry-type oil production bin operation interface in a non-operation period, the structural schematic diagram of the protective cap is shown in the attached drawing 2, an upper inclined plane limiting step and a lower inclined plane limiting step which are matched with each other are arranged between the outer wall of the dry-type oil production bin operation interface and the inner wall of the protective cap, the protective cap is convenient to install in place quickly, and the protective cap can cover the sealing plug and the dry-type oil production bin operation interface when the dry-type oil production bin is not exploited, so that the sealing plug and the dry-type oil production bin operation interface are prevented from being corroded.
In conclusion, the sealing and connecting device for the operation interface of the underwater dry-type oil production bin, provided by the invention, not only facilitates the exploitation of oil fields distributed in shallow water areas on a channel, avoids the long-term occupation of the channel, but also reduces the exploitation cost, and has the advantages of simple structure, convenience and rapidness in operation and reliable performance.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an operation interface of dry-type oil recovery storehouse under water is sealed and connecting device which characterized in that: including dry-type oil recovery storehouse operation interface, sealing plug, water proof pipe and connecting pipe, dry-type oil recovery storehouse operation interface fixed mounting is in the operation mouth department at dry-type oil recovery storehouse top, and dry-type oil recovery storehouse operation interface outer wall is equipped with interface jump ring annular, sealing plug seal mounting is in dry-type oil recovery storehouse operation interface operation mouth department, the connecting pipe jump ring annular has been seted up on water proof pipe and connecting pipe fixed connection and the connecting pipe lower part inner wall, the opening jump ring is equipped with to connecting pipe jump ring annular inside callipers, fixed mounting has a brace table on the connecting pipe outer wall, and fixed mounting has drive arrangement on the brace table, the last hawser of installing of drive arrangement, the hawser other end passes connecting pipe and opening jump ring end connection.
2. The sealing and connecting device for the operation interface of the underwater dry-type oil recovery tank as claimed in claim 1, wherein: the upper surface of the sealing plug is provided with a groove, a locking ring is fixedly installed in the groove and comprises a bottom plate and a ring wall, the bottom plate is fixedly connected with the sealing plug through a bolt, the bottom of the inner wall of the ring wall is provided with a plurality of locking teeth, and the locking teeth are higher than the bottom plate.
3. The sealing and connecting device for the operation interface of the underwater dry-type oil recovery tank as claimed in claim 2, wherein: and a connecting plate is arranged at the bottom of the sealing plug, and the connecting plate, the sealing plug and the locking ring are fixedly connected together through the bolt.
4. The sealing and connecting device for the operation interface of the underwater dry-type oil recovery silo as claimed in claim 1, wherein: the driving device is a hydraulic cylinder.
5. The sealing and connecting device for the operation interface of the underwater dry-type oil recovery silo as claimed in claim 1, wherein: and a sealing ring is arranged between the outer wall of the dry-type oil extraction bin operation interface and the inner wall of the connecting pipe above the interface snap spring ring groove.
6. The sealing and connecting device for the operation interface of the underwater dry-type oil recovery tank as claimed in claim 1, wherein: an upper inclined plane limiting step and a lower inclined plane limiting step which are matched with each other are arranged between the outer wall of the dry-type oil extraction bin operation interface and the inner wall of the connecting pipe.
7. The sealing and connecting device for the operation interface of the underwater dry-type oil recovery tank as claimed in claim 1, wherein: the dry-type oil extraction bin operation interface is covered with a protective cap in non-operation time, and an upper inclined plane limiting step and a lower inclined plane limiting step which are matched with each other are arranged between the outer wall of the dry-type oil extraction bin operation interface and the inner wall of the protective cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211601671.4A CN115613992B (en) | 2022-12-14 | 2022-12-14 | Sealing and connecting device for operation interface of underwater dry-type oil production bin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211601671.4A CN115613992B (en) | 2022-12-14 | 2022-12-14 | Sealing and connecting device for operation interface of underwater dry-type oil production bin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115613992A CN115613992A (en) | 2023-01-17 |
| CN115613992B true CN115613992B (en) | 2023-02-24 |
Family
ID=84881041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211601671.4A Active CN115613992B (en) | 2022-12-14 | 2022-12-14 | Sealing and connecting device for operation interface of underwater dry-type oil production bin |
Country Status (1)
| Country | Link |
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| CN (1) | CN115613992B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3516492A (en) * | 1968-05-23 | 1970-06-23 | Shell Oil Co | Underwater wellhead connector |
| US4191256A (en) * | 1978-04-21 | 1980-03-04 | Cameron Iron Works, Inc. | Subsea flowline connector |
| WO2008109280A1 (en) * | 2007-03-01 | 2008-09-12 | Chevron U.S.A. Inc. | Subsea adapter for connecting a riser to a subsea tree |
| CN203383796U (en) * | 2013-08-14 | 2014-01-08 | 大连理工大学 | Ultra-deep water-oil-gas development system based on dry-type Christmas tree |
| CN112963117A (en) * | 2021-04-19 | 2021-06-15 | 重庆前卫科技集团有限公司 | Wellhead connector, mechanical unlocking tool and unlocking method thereof |
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2022
- 2022-12-14 CN CN202211601671.4A patent/CN115613992B/en active Active
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| Publication number | Publication date |
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| CN115613992A (en) | 2023-01-17 |
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