CN203655196U - Full-bore high-pressure-resistant reverse well washing valve for deep sea oil well - Google Patents
Full-bore high-pressure-resistant reverse well washing valve for deep sea oil well Download PDFInfo
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- CN203655196U CN203655196U CN201320846388.8U CN201320846388U CN203655196U CN 203655196 U CN203655196 U CN 203655196U CN 201320846388 U CN201320846388 U CN 201320846388U CN 203655196 U CN203655196 U CN 203655196U
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- central tube
- outer tube
- ball seat
- tube
- ball
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Abstract
The utility model relates to a full-bore high-pressure-resistant reverse well washing valve for a deep sea oil well. The valve comprises an upper connector, a central tube, an outer tube, a ball seat, a connecting ball, a separating ring, a well washing spring and a lower connector, wherein outer tube circulating holes are uniformly formed in the upper part of the outer tube in the peripheral direction; central tube circulating holes are uniformly formed in the central tube in the peripheral direction; the central tube and the outer tube are respectively fixedly connected with the upper connector and the lower connector; the ball seat is mounted in an annular space formed between the outer tube and the central tube, the separating ring is sleeved with the annular space formed between the outer tube and the central tube, and a plurality of axial circular holes are uniformly distributed in the separating ring in the peripheral direction; a sphere at the upper end of the connecting ball is in contact with the circular conical surface of the ball seat; the well washing spring is sleeved with the annular space formed between the outer tube and the central tube, and the upper end of the well washing spring is in contact with the lower end of the separating ring. By the adoption of the valve, the full bores of the whole tubular columns can be ensured. Besides, the valve has the advantages of high sealing property, simple structure and easiness in operation.
Description
Technical field
The utility model belongs to oil exploration and development fields, particularly, relates to the high pressure resistant reverse flushing valve of a kind of deep-sea oil well full-bore.
Background technology
At present, at sea flushing valve is all installed on oil well production string packer top, flushing valve divides two types: a kind of is the flushing valve of sliding sleeve unfolding mode, the shortcoming of its existence is to produce after a period of time, be lowered to wire rope and open sliding sleeve, likely, because of oil well fouling, sliding sleeve cannot be opened or close, and has certain construction risk; Another kind is the flushing valve with single current ball-cock device, owing to adopting single current ball-cock device, can not guarantee flow string full-bore, affects subsequent tool and is lowered to.
Utility model content
?for overcoming the defect existing in prior art, the utility model provides a kind of deep-sea oil well full-bore high pressure resistant reverse flushing valve, effectively timely anti-flushing well, both guaranteed flow string full-bore in well, be convenient to being lowered to of large latus rectum power tool, can shorten the activity duration again, convenient operation.
For achieving the above object, the utility model adopts following proposal:
The high pressure resistant reverse flushing valve of deep-sea oil well full-bore, comprising: top connection, central tube, outer tube, ball seat, connection ball, spacer ring, well-flushing spring and lower contact;
The top of outer tube along the circumferential direction evenly arranges outer tube circulation port;
The outer wall lower end of central tube is provided with boss, on the top of boss, central tube circulation port is along the circumferential direction evenly set;
Central tube is fixedly connected with top connection, lower contact; Outer tube is fixedly connected with top connection, lower contact;
The interior latus rectum of the interior latus rectum of described central tube, the interior latus rectum of top connection, lower contact is identical;
Ball seat is torus, and ball seat is arranged in the annular space forming between outer tube and central tube, and ball seat and central tube are fixed, and ball seat and outer tube are tightly connected;
Described spacer ring is torus, and the external diameter of spacer ring is consistent with outer tube diameter, and the internal diameter of spacer ring is consistent with the external diameter of central tube boss upper end, and spacer ring is inserted in the annular space forming between outer tube and central tube, and spacer ring is uniform multiple axial circular hole along the circumferential direction;
Connecting ball is the spheroid of lower end with connecting rod, connects in the circular hole that the connecting rod of ball lower end is inserted in spacer ring and lower end adopts nut to fix; Connecting the spheroid of ball upper end and the taper seat of ball seat contacts;
The number of the circular hole number of spacer ring, the circular hole number of ball seat, connection ball is identical;
Well-flushing spring housing is located in the annular space forming between outer tube and central tube, and end in contact under the upper end of well-flushing spring and spacer ring; End in contact in the lower end of well-flushing spring and lower contact.
Than existing inverse well-flushing valve, the utlity model has following advantage: can guarantee tubing string full-bore whole time; Good seal performance; Simple in structure, simple to operate.
Accompanying drawing explanation
Fig. 1 is the high pressure resistant reverse flushing valve structural representation of deep-sea of the present utility model oil well full-bore;
Fig. 2 is B-B cross-sectional view in Fig. 1;
Fig. 3 be in Fig. 1 A to local structure for amplifying schematic diagram;
In figure: 1, top connection, 21, the first sealing ring, 22, the second sealing ring, 23, the 5th sealing ring, 24, the 3rd sealing ring, 25, the 4th sealing ring, 3, central tube, 4, outer tube, 5, ball seat, 6, connect ball, 7, spacer ring, 8, well-flushing spring, 9, lower contact, 10, outer tube circulation port, 11, central tube circulation port.
The specific embodiment
As shown in Figure 1, the high pressure resistant reverse flushing valve of deep-sea oil well full-bore, comprising: top connection 1, central tube 3, outer tube 4, ball seat 5, connection ball 6, spacer ring 7, well-flushing spring 8 and lower contact 9.
The interior latus rectum of the interior latus rectum of described central tube 3, the interior latus rectum of top connection 1, lower contact 9 is identical.
Outer tube 4 is cylindrical shape, and upper end, the lower end of outer tube are equipped with internal thread; The top of outer tube 4 along the circumferential direction evenly arranges two outer tube circulation ports 10.
Described spacer ring 7 is torus, the external diameter of spacer ring 7 is consistent with outer tube diameter, the internal diameter of spacer ring 7 is consistent with the external diameter of central tube 3 boss upper ends, spacer ring 7 is inserted in the annular space forming between outer tube 4 and central tube 3, along the circumferential direction uniform 20 axial circular holes, the circular hole of spacer ring 7 is corresponding with the circular hole of ball seat 5.
Connecting ball 6 be the spheroid of lower end with connecting rod, connects ball 6 and has 20, connects in the circular hole that the connecting rod of ball 6 lower ends is inserted in spacer ring 7 and lower end employing nut is fixed; The spheroid that connects ball 6 upper ends contacts with the taper seat of ball seat 5.
Well-flushing spring 8 is cylindrical screw stage clip, and well-flushing spring 8 is set in the annular space forming between outer tube 4 and central tube 3, and the upper end of well-flushing spring 8 and 7 times end in contact of spacer ring; End in contact in the lower end of well-flushing spring 8 and lower contact 9.
When well-flushing, squeeze into flushing fluid from casing annulus, the circulation port 10 that flushing fluid is provided with by outer tube 4 enters in the annular space between outer tube 4 and central tube 3.Liquid enters 20 circular holes that ball seat 5 is provided with.Under the effect of fluid pressure, 20 connection balls 6 drive spacer ring 7 down sliding simultaneously, and well-flushing spring 7 compresses, and spacer ring 7 moves to the boss face of central tube 3 and contacts, and the circulation port 11 that liquid is provided with by central tube 3 enters in oil pipe, forms circulation canal.
While stopping well-flushing, oil jacket pressure balance, well-flushing spring 8 resets, spacer ring 7 upward slidings, 20 connect the taper seat that ball 6 is provided with ball seat 5 simultaneously and contacts, close circulation canal, along with the carrying out of pumping, oil pipe internal pressure is higher than casing pressure, and under the effect of this pressure, it is better that well-flushing ball seat seals.
Claims (10)
1. the high pressure resistant reverse flushing valve of deep-sea oil well full-bore, comprising: top connection, central tube, outer tube, ball seat, connection ball, spacer ring, well-flushing spring and lower contact; It is characterized in that:
The top of outer tube along the circumferential direction evenly arranges some outer tube circulation ports;
The outer wall lower end of central tube is provided with boss, on the top of boss, some central tube circulation ports is along the circumferential direction evenly set;
Central tube is fixedly connected with top connection, lower contact; Outer tube is fixedly connected with top connection, lower contact;
The interior latus rectum of the interior latus rectum of described central tube, the interior latus rectum of top connection, lower contact is identical;
Ball seat is torus, and ball seat is arranged in the annular space forming between outer tube and central tube, and ball seat and central tube are fixed, and ball seat and outer tube are tightly connected;
Described spacer ring is torus, and the external diameter of spacer ring is consistent with outer tube diameter, and the internal diameter of spacer ring is consistent with the external diameter of central tube boss upper end, and spacer ring is set in the annular space forming between outer tube and central tube, and spacer ring is uniform multiple axial circular hole along the circumferential direction;
Connecting ball is the spheroid of lower end with connecting rod, connects in the circular hole that the connecting rod of ball lower end is inserted in spacer ring and lower end adopts nut to fix;
The number of the circular hole number of spacer ring, the circular hole number of ball seat, connection ball is identical;
Well-flushing spring housing is located in the annular space forming between outer tube and central tube, and end in contact under the upper end of well-flushing spring and spacer ring; End in contact in the lower end of well-flushing spring and lower contact.
2. the high pressure resistant reverse flushing valve of deep-sea according to claim 1 oil well full-bore, is characterized in that:
Top connection is torus, and outer wall bottom is provided with boss face, and lower end inwall is provided with internal thread and the first seal groove, and the first sealing ring is installed in the first seal groove; Lower end outer wall is provided with external screw thread and the second seal groove, and the second sealing ring is installed in the second seal groove;
Lower contact is torus, and outer wall top is provided with boss face, and upper end inwall is provided with internal thread and the 3rd seal groove, and sealing ring is installed in three-flute; Lower end outer wall is provided with external screw thread and the 4th seal groove, and sealing ring is installed in the 4th seal groove;
Central tube is cylinder, and upper end, the lower end of central tube are equipped with external screw thread;
Outer tube is cylindrical shape, and upper end, the lower end of outer tube are equipped with internal thread;
Top connection is threaded and seals with the upper end of central tube, and lower contact is threaded and seals with the lower end of central tube;
Top connection is threaded and seals with the upper end of outer tube, and lower contact is threaded and seals with the lower end of outer tube.
3. the high pressure resistant reverse flushing valve of deep-sea according to claim 1 and 2 oil well full-bore, is characterized in that: the middle part of central tube circulation port is provided with external screw thread; The inside of ball seat is provided with internal thread; Ball seat is threaded with the external screw thread at central tube middle part by internal thread.
4. the high pressure resistant reverse flushing valve of deep-sea according to claim 3 oil well full-bore, is characterized in that: outer wall is provided with a seal groove; The 5th sealing ring is installed in ball seat outer wall seal groove, and the sealing ring that ball seat outer wall is installed contacts and seals with contoured surface in outer tube.
5. the high pressure resistant reverse flushing valve of deep-sea according to claim 4 oil well full-bore, is characterized in that: well-flushing spring is cylindrical screw stage clip.
6. the high pressure resistant reverse flushing valve of deep-sea according to claim 5 oil well full-bore, is characterized in that: the lower end of circular hole is provided with taper seat.
7. the high pressure resistant reverse flushing valve of deep-sea according to claim 6 oil well full-bore, is characterized in that: the number of the circular hole number of spacer ring, the circular hole number of ball seat, connection ball is 20.
8. the high pressure resistant reverse flushing valve of deep-sea according to claim 7 oil well full-bore, is characterized in that: the top of outer tube along the circumferential direction evenly arranges two outer tube circulation ports.
9. the high pressure resistant reverse flushing valve of deep-sea according to claim 8 oil well full-bore, is characterized in that: the outer wall lower end of central tube is provided with boss, on the top of boss, two central tube circulation ports is along the circumferential direction evenly set.
10. the high pressure resistant reverse flushing valve of deep-sea according to claim 8 oil well full-bore, is characterized in that: connect the spheroid of ball upper end and the taper seat of ball seat and contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320846388.8U CN203655196U (en) | 2013-12-20 | 2013-12-20 | Full-bore high-pressure-resistant reverse well washing valve for deep sea oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320846388.8U CN203655196U (en) | 2013-12-20 | 2013-12-20 | Full-bore high-pressure-resistant reverse well washing valve for deep sea oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203655196U true CN203655196U (en) | 2014-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320846388.8U Expired - Fee Related CN203655196U (en) | 2013-12-20 | 2013-12-20 | Full-bore high-pressure-resistant reverse well washing valve for deep sea oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203655196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670308A (en) * | 2013-12-20 | 2014-03-26 | 东营市福利德石油科技开发有限责任公司 | Deep-water oil well full-drift-diameter high-pressure-resisting reverse flushing valve |
-
2013
- 2013-12-20 CN CN201320846388.8U patent/CN203655196U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670308A (en) * | 2013-12-20 | 2014-03-26 | 东营市福利德石油科技开发有限责任公司 | Deep-water oil well full-drift-diameter high-pressure-resisting reverse flushing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20161220 |