CN218293551U - Bottom well head for single-cylinder four-well oil production device - Google Patents
Bottom well head for single-cylinder four-well oil production device Download PDFInfo
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- CN218293551U CN218293551U CN202222682234.1U CN202222682234U CN218293551U CN 218293551 U CN218293551 U CN 218293551U CN 202222682234 U CN202222682234 U CN 202222682234U CN 218293551 U CN218293551 U CN 218293551U
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- boss
- oil recovery
- supporting platform
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 238000011084 recovery Methods 0.000 claims abstract description 23
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 3
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 3
- 241001330002 Bambuseae Species 0.000 abstract description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 3
- 239000011425 bamboo Substances 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 description 13
- 241000191291 Abies alba Species 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
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Abstract
The utility model relates to a subsea production equips technical field, especially discloses a four well bottom well heads for oil recovery device of single section of thick bamboo, including the well body, the internal oil recovery passageway that is used for connecting the upper portion well head that is equipped with of well, oil recovery passageway lateral wall is equipped with first boss, second boss and third boss, be equipped with the recess on the second boss, be equipped with the locking ring in the recess, install the casing hanger in the oil recovery passageway, the casing hanger is pressed on the third boss, install sealing device between casing hanger and the well body sealing device is located the locking ring bottom, sealing device is equipped with the first supporting platform that supports the locking ring, be equipped with the seat ring between locking ring and the sealing device, the locking ring can slide relative first supporting platform, compares with the conventional art, the utility model discloses reduced the area occupied at the well body of bolt and flange, the area of saving can be used for expanding oil recovery passageway diameter to improve oil recovery efficiency.
Description
Technical Field
The utility model relates to a subsea production equips technical field, especially relates to a four wells of single section of thick bamboo bottom well heads for oil recovery device.
Background
At present, the existing oil well Christmas tree is that the Christmas tree is installed above a shaft, then oil mine in a well is transported out through the shaft, well mouths are required to be arranged in a single shaft in the oil extraction process, in order to improve the oil extraction efficiency, a plurality of well mouths are usually arranged in the shaft for oil extraction simultaneously, the existing technology is that two well mouths are arranged in one shaft for oil extraction, the existing technology is called a single-cylinder double-well Christmas tree, three well mouths are also arranged for oil extraction, the existing technology is called a single-cylinder three-well Christmas tree, the oil extraction efficiency of the single-cylinder three-well Christmas tree is generally higher than that of the single-cylinder double-well Christmas tree, but in the modern society of high-speed development, the oil extraction efficiency of the single-cylinder three-well Christmas tree still can not meet the production requirements of the existing industry, and the number of the well mouths is required to be increased so as to improve the oil extraction efficiency of the Christmas tree.
Along with the increase of well head, the production passageway on the bottom well head of being connected with the upper portion well head will be more, if use traditional mounting means, need connect fixed bolt can increase between its lower part well head of oil recovery device of four well heads and the upper portion well head, the flange accounts for the area ratio of whole well head can increase, a production pipeline diameter for the oil transportation can reduce, even increase well head quantity, production pipeline quantity increases and its diameter reduces, promotion effect to oil recovery efficiency is not obvious, and the location of casing hanger also needs the jackscrew, the installation of jackscrew needs to punch at the lateral wall, the production passageway is more, the jackscrew that needs and jackscrew hole are more, the leakproofness of bottom well head is worse, the degree of difficulty is also big during the installation.
For improving the oil extraction efficiency, a bottom wellhead which can reduce the number of bolts and the area ratio of the flange to the wellhead needs to be designed so as to effectively improve the oil extraction efficiency of the four-wellhead oil extraction device.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem in the prior art and providing a bottom well head for single-cylinder four-well oil extraction device.
The technical scheme of the utility model is that:
the utility model provides a four well oil recovery device of single section of thick bamboo are with bottom well head, includes the well body, the internal oil recovery passageway that is used for connecting the upper portion well head that is equipped with of well, oil recovery passageway lateral wall is equipped with first boss, second boss and third boss, be equipped with the recess on the second boss, be equipped with the locking ring in the recess, install the casing hanger in the oil recovery passageway, the casing hanger presses on the third boss, install sealing device between casing hanger and the well body, sealing device is located the locking ring bottom, sealing device is equipped with the first supporting platform who supports the locking ring, be equipped with the setting ring between locking ring and the sealing device, the setting ring is located the locking ring top, the setting ring can slide relative to the second boss, the locking ring can slide relative to first supporting platform.
Furthermore, a second supporting platform is arranged on the seat ring and consists of three planes, the middle part of the second supporting platform is a vertical plane, and two ends of the vertical plane are inclined planes.
Furthermore, a third supporting platform is arranged on the sealing device, and the locking ring slides on the third supporting platform.
Furthermore, four groups of ball valves are installed on the well body, each group comprises two ball valves, and the four groups of ball valves are positioned at the same horizontal height.
Furthermore, an emergency casing hanger is installed in the oil production channel and is located at the bottom of the casing hanger.
Furthermore, two sealing rings are respectively arranged on two sides of the sealing device.
Furthermore, the joint of the casing hanger and the third boss is an inclined plane.
Furthermore, the first supporting platform, the second supporting platform and the groove form a cavity for the locking ring to move, the locking ring is located in the cavity, and the volume of the cavity can be enlarged and reduced when the setting ring moves.
The utility model discloses a four well oil production devices of single cylinder use bottom well head, first boss can provide the support for the upper portion well head, prevent that the upper portion well head from receiving gravity in the course of the work and moving down, the locking ring that sets up in the second boss, when the casing hanger receives the ascending pressure in bottom of the well and moves up, first supporting platform and locking ring laminating, the locking ring that is in the recess blocks the casing hanger, prevent it to move up, the third boss prevents the casing hanger to move down, from this realize the location of casing hanger, replace the jackscrew location among the traditional mounting means, jackscrew installation quantity reduces, thereby the installation degree of difficulty has been reduced, the well side has also been reduced and the quantity that is used for installing the jackscrew hole has been improved, improve the leakproofness of well body, compared with the conventional art, the utility model discloses bolt and flange have been saved between upper portion well head and bottom well head, the support to the upper portion well head is realized to the first boss of direct bottom well head, thereby realize the joint of upper portion well head and bottom well head, the area of bolt and flange at the well body has been reduced, the area that saves can be used for expanding oil production passageway diameter, thereby improve oil production efficiency.
Drawings
Fig. 1 is a top view of the present invention;
FIG. 2 is a cross-sectional view B-B of the present invention;
fig. 3 is a partial enlarged view a of the present invention.
Reference numerals are as follows: 1. an emergency casing hanger; 2. a third boss; 3. a third support platform; 4. locking a ring; 5. a cavity; 6. a groove; 7. a well body; 9. a casing hanger; 10. a sealing device; 11. a ball valve; 13. an oil production channel; 14. a first boss; 15. a second boss; 17. setting a sealing ring; 19. a first support platform; 20. a second support platform.
Detailed Description
In order to make the utility model realize the technical means, technical characteristics, utility model purpose and technical effect are easily understood to understand, combine specific figure below, further explain the utility model discloses.
The first embodiment is as follows:
as shown in fig. 1 and fig. 2, the present embodiment provides a bottom wellhead for a single-barrel four-well oil production device, including a well body 7, a production passage 13 for connecting an upper wellhead is provided in the well body 7, a first boss 14, a second boss 15 and a third boss 2 are provided on a sidewall of the production passage 13, an indentation 6 is provided on the second boss 15, a locking ring 4 is provided in the indentation 6, a casing hanger 9 is installed in the production passage 13, the casing hanger 9 is pressed on the third boss 2, a sealing device 10 is installed between the casing hanger 9 and the well body 7, the sealing device 10 is located at a bottom of the locking ring 4, the sealing device 10 is provided with a first supporting platform 19 for supporting the locking ring 4, as shown in fig. 3, a setting ring 17 is provided between the locking ring 4 and the sealing device 10, the setting ring 17 is located at a top of the locking ring 4, the setting ring 17 is slidable relative to the second boss 15, and the locking ring 4 is slidable relative to the first supporting platform 19.
Specifically, the seating ring 17 is provided with a second supporting platform 20, the second supporting platform 20 is composed of three planes, the middle part of the second supporting platform is a vertical plane, two ends of the vertical plane are inclined planes, the inclined planes are more favorable for extruding the locking ring 4 into the groove 6, specifically, the sealing device 10 is provided with a third supporting platform 3, and the locking ring 4 slides on the third supporting platform 3.
Four groups of ball valves 11 are arranged on the well body 7, each group comprises two ball valves 11, and the four groups of ball valves 11 are at the same horizontal height.
An emergency casing hanger 1 is installed in the oil production channel 13, the emergency casing hanger 1 is located at the bottom of the casing hanger 9, and preferably, the emergency casing hanger 1 is a slip hanger.
Two sealing rings are respectively arranged on two sides of the sealing device 10, and the sealing rings can improve the sealing performance between the sealing device 10 and the well body 7 and the sealing performance between the sealing device 10 and the casing hanger 9.
The joint of the casing hanger 9 and the third boss 2 is an inclined plane, and stress concentration can be reduced by the inclined plane when stress is applied.
The first supporting platform 19, the second supporting platform 20 and the groove 6 form a cavity 5 for the locking ring 4 to move, the locking ring 4 is located in the cavity 5, the volume of the cavity 5 can be enlarged and reduced when the setting ring 17 moves, the setting ring 17 moves downwards to reduce the volume of the cavity 5, the locking ring 4 is extruded by the second supporting platform 20 to enter the groove 6, and the volume of the cavity 5 is enlarged when the setting ring 17 moves upwards.
When the emergency casing hanger 1 is installed, the emergency casing hanger 1 enters the position below the oil production channel 13, the casing hanger 9 is installed in the middle, then the locking ring 4 is installed, finally the setting ring 17 is installed to clamp the locking ring 4 to prevent the locking ring 4 from coming out of the groove 6, the first boss 14 can provide support for the upper wellhead to prevent the upper wellhead from moving downwards under the action of gravity in the working process, the locking ring 4 is arranged in the second boss 15, when the casing hanger 9 moves upwards under the upward pressure of the well bottom, the first supporting platform 19 is attached to the locking ring 4, the locking ring 4 in the groove 6 clamps the casing hanger 9 to prevent the casing hanger 9 from moving upwards, the third boss 2 prevents the casing hanger 9 from moving downwards, realize casing hanger 9's location from this, replace the jackscrew location in the traditional mounting means, jackscrew installation quantity reduces, thereby reduced the installation degree of difficulty, also reduced the 7 sides of well body and be used for installing the quantity in jackscrew hole, improved the leakproofness of well body 7, the utility model discloses saved bolt and flange between upper portion well head and bottom well head, directly realized the support to the upper portion well head through first boss 14 of bottom well head, thereby realized the joint of upper portion well head and bottom well head, reduced the area occupied of bolt and flange at well body 7, the area of saving can be used for expanding oil recovery passageway 13 diameters, thereby improves oil recovery efficiency.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. All equivalent changes and modifications made according to the content of the claims of the present invention should belong to the technical scope of the present invention.
Claims (8)
1. The utility model provides a four well oil recovery devices of single cylinder use bottom well head which characterized in that: including well body (7), be equipped with oil recovery passageway (13) in well body (7), oil recovery passageway (13) lateral wall is equipped with first boss (14), second boss (15) and third boss (2), be equipped with recess (6) on second boss (15), be equipped with locking ring (4) in recess (6), install casing hanger (9) in oil recovery passageway (13), casing hanger (9) are pressed on third boss (2), install sealing device (10) between casing hanger (9) and well body (7), sealing device (10) are located locking ring (4) bottom, sealing device (10) are equipped with first supporting platform (19) that support locking ring (4), be equipped with between locking ring (4) and sealing device (10) and sit sealing ring (17), it is located locking ring (4) top to sit sealing ring (17), it can slide second boss (15) relatively to sit sealing ring (17), locking ring (4) can slide first supporting platform (19) relatively.
2. The bottom wellhead for a single-cylinder four-well oil recovery device according to claim 1, characterized in that: the seat seal ring (17) is provided with a second supporting platform (20), the second supporting platform (20) is composed of three planes, the middle part of the second supporting platform is a vertical plane, and two ends of the vertical plane are inclined planes.
3. A bottom wellhead for a single-barrel four-well production unit according to claim 1 wherein: and a third supporting platform (3) is arranged on the sealing device (10), and the locking ring (4) slides on the third supporting platform (3).
4. The bottom wellhead for a single-cylinder four-well oil recovery device according to claim 1, characterized in that: four groups of ball valves (11) are installed on the well body (7), each group comprises two ball valves (11), and the four groups of ball valves (11) are located at the same horizontal height.
5. The bottom wellhead for a single-cylinder four-well oil recovery device according to claim 1, characterized in that: an emergency casing hanger (1) is installed in the oil production channel (13), and the emergency casing hanger (1) is located at the bottom of the casing hanger (9).
6. A bottom wellhead for a single-barrel four-well production unit according to claim 1 wherein: two sealing rings are respectively arranged on two sides of the sealing device (10).
7. A bottom wellhead for a single-barrel four-well production unit according to claim 1 wherein: the joint of the casing hanger (9) and the third boss (2) is an inclined plane.
8. The bottom wellhead for a single-cylinder four-well oil recovery device according to claim 2, characterized in that: the first supporting platform (19), the second supporting platform (20) and the groove (6) form a cavity (5) for the locking ring (4) to move, the locking ring (4) is located in the cavity (5), and the volume of the cavity (5) can be enlarged and reduced when the setting ring (17) moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222682234.1U CN218293551U (en) | 2022-10-12 | 2022-10-12 | Bottom well head for single-cylinder four-well oil production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222682234.1U CN218293551U (en) | 2022-10-12 | 2022-10-12 | Bottom well head for single-cylinder four-well oil production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218293551U true CN218293551U (en) | 2023-01-13 |
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ID=84806824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222682234.1U Active CN218293551U (en) | 2022-10-12 | 2022-10-12 | Bottom well head for single-cylinder four-well oil production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218293551U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117514061A (en) * | 2024-01-03 | 2024-02-06 | 威飞海洋装备制造有限公司 | Casing hanger device with sitting and putting in place indication function |
-
2022
- 2022-10-12 CN CN202222682234.1U patent/CN218293551U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117514061A (en) * | 2024-01-03 | 2024-02-06 | 威飞海洋装备制造有限公司 | Casing hanger device with sitting and putting in place indication function |
| CN117514061B (en) * | 2024-01-03 | 2024-06-07 | 威飞海洋装备制造有限公司 | Casing hanger device with sitting and putting in place indication function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240506 Address after: 524000 South Transfer Road, Potou District, Zhanjiang City, Guangdong Province Patentee after: CNOOC (China) Limited,Zhanjiang Branch Country or region after: China Patentee after: Weifei Marine Equipment Manufacturing Co.,Ltd. Address before: 257000 No. 1002 Xiliu Road, Dongying District, Dongying City, Shandong Province Patentee before: Weifei Marine Equipment Manufacturing Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |