CN201857913U - Well washing valve for completion of horizontal well - Google Patents
Well washing valve for completion of horizontal well Download PDFInfo
- Publication number
- CN201857913U CN201857913U CN2010205372328U CN201020537232U CN201857913U CN 201857913 U CN201857913 U CN 201857913U CN 2010205372328 U CN2010205372328 U CN 2010205372328U CN 201020537232 U CN201020537232 U CN 201020537232U CN 201857913 U CN201857913 U CN 201857913U
- Authority
- CN
- China
- Prior art keywords
- leather cup
- horizontal well
- flushing valve
- well completion
- valve according
- 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.)
- Expired - Fee Related
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model relates to a well washing valve for completion of a horizontal well. The well washing valve comprises an upper connector, a base pipe, a working barrel, an upper plug, a core tube, an inner spring, a bull plug, an external socket, an insertion pipe device, and the like; the upper connector is connected with the base pipe and a guide shoe in sequence; the external socket is installed in the base pipe and connected with an internal socket, an internal connector, the working barrel and the bull plug in sequence; a wiper block is installed on the bull plug; a footstock is installed below the internal socket; the insertion pipe device is installed on the upper plug, the internal socket and the external socket; the upper plug is connected with a leather cup upper connector, an adjusting ring, the core tube, a leather cup lower connector and a lower plug in sequence; the inner spring is installed below the lower plug; an outer spring is installed below the leather cup lower connector; and a pressing cap, a leather cup and a support ring are installed below the adjusting ring, on the leather cup lower connector and in the annular space between the working barrel and the core tube in sequence. The well washing valve has the characteristics of large sealing area, good sealing effect, no influence of dirt, simple and reliable structure, good sand prevention effect, and the like, and is widely applied to completion of the horizontal well and sand prevention process in oil production.
Description
One, technical field
The utility model relates to oil exploitation completion flushing valve, particularly a kind of horizontal well completion flushing valve.
Two, background technology
Used flushing valve generally is made of ball seat and steel ball, and for strength has been contributed in oil exploitation underground work, but the flushing valve of said structure exists following shortcoming or deficiency: 1. poor sealing performance, by steel ball and conical seal (contact) face sealing; 2. well washing effect is poor, and particularly horizontal well washing has a lot of fouls attached on the ball seat, has both influenced well washing effect, influences the sealing effectiveness of steel ball again; 3. because sealing is bad, cause the later stage to shake out, flow or blow over and cover completely instrument and keep a grip on, cause the oil gas well can not ordinary production even stopping production, overhaul; 4. can not carry out the anti-flushing well operation.
Three, utility model content
Order of the present utility model provides a kind of horizontal well completion flushing valve, adopts the co-ordinative construction of parent tube, seating nipple and Intubaction device, the shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned prior art.
Horizontal well completion flushing valve described in the utility model comprises top connection, outer socket, interpolation block, parent tube, footstock, spigot, seating nipple, upper plug head, leather cup top connection, adjustable ring, pressure cap, leather cup, support ring, core pipe, leather cup lower contact, baffle ring, outer spring, lower end cap, inner spring, dead stifled, wiper block, guide shoe and Intubaction device.Described top connection is connected with guide shoe with parent tube in turn, outer socket is installed in the parent tube, outer socket in turn with interpolation block, spigot, seating nipple and dead stifled being connected, on dead the blocking up wiper block is installed, under the interpolation block footstock is installed, Intubaction device is installed on upper plug head, on interpolation block and the outer socket, upper plug head in turn with the leather cup top connection, adjustable ring, the core pipe, the leather cup lower contact is connected with lower end cap, under the lower end cap inner spring is installed, under the leather cup lower contact outer spring is installed, under the adjustable ring, in the leather cup lower contact, in the annular space between seating nipple and the core pipe pressure cap is installed in turn, leather cup, support ring.
Wherein, described outer socket top is provided with outer lug boss, and this outer lug boss lower end sits on the top of parent tube.Described core pipe upper end is connected with the internal thread of leather cup top connection, and the lower end is connected with the internal thread of leather cup lower contact, and adjustable ring is connected with the external screw thread of leather cup top connection.The middle part of described parent tube is provided with circulation port.The bottom of described seating nipple is provided with circulation port.Described interpolation block is connected with outer socket, and interpolation block is the horn mouth structure on same inclined-plane with the upper end of outer socket.Described Intubaction device comprises the spigot joint and the intubate of connection in turn.Described intubate bottom is provided with circulation port, and the middle part is equipped with seal.The bottom of described spigot joint is provided with a cone structure, and this conical surface matches with the horn mouth of outer socket upper end.
The utility model has following advantage compared with prior art:
1, with steel ball and conical seal (contact) face sealing, changes the sealing of leather cup and seating nipple into, steel ball sealing can be changed into horizontal slipper seal, not influenced by foul, realize positiver sealing and effective sand control of later stage;
2, high temperature resistant, can reach 150 ℃;
3, be particularly suitable for horizontal well completion and use, effectively overcome the influence that foul adheres to, improve sealing effectiveness greatly.
4, because parent tube, seating nipple and intubate are provided with circulation port, can carry out the anti-flushing well operation smoothly.
Four, description of drawings
Accompanying drawing is a kind of example structure schematic diagram under the utility model well-flushing state;
Five, the specific embodiment
Consult accompanying drawing, a kind of horizontal well completion flushing valve comprises top connection 1, outer socket 3, interpolation block 4, parent tube 6, footstock 7, spigot 8, seating nipple 9, upper plug head 11, leather cup top connection 12, adjustable ring 13, pressure cap 14, leather cup 15, support ring 16, core pipe 17, leather cup lower contact 18, baffle ring 19, outer spring 20, lower end cap 21, inner spring 22, extremely stifled 23, wiper block 24, guide shoe 25 and Intubaction device.Top connection 1 is connected with guide shoe 25 with parent tube 6 in turn, outer socket 3 is installed in the parent tube 6, outer socket 3 in turn with interpolation block 4, spigot 8, seating nipple 9 is connected with dead stifled 23, on dead stifled 23 wiper block 24 is installed, interpolation block is equipped with footstock 74 times, Intubaction device is installed on upper plug head 11, on interpolation block 4 and the outer socket 3, upper plug head 11 in turn with leather cup top connection 12, adjustable ring 13, core pipe 17, leather cup lower contact 18 is connected with lower end cap 21, lower end cap is equipped with inner spring 22 21 times, the leather cup lower contact is equipped with outer spring 20 18 times, adjustable ring 13 times, in the leather cup lower contact 18, in the annular space between seating nipple 9 and the core pipe 17 pressure cap 14 is installed in turn, leather cup 15, support ring 16.
Outer socket 3 tops are provided with outer lug boss, and this outer lug boss lower end sits on the top of parent tube 6.Core pipe 17 upper ends are connected with the internal thread of leather cup top connection 12, and the lower end is connected with the internal thread of leather cup lower contact 18, and adjustable ring 13 is connected with the external screw thread of leather cup top connection 12.The middle part of parent tube 6 is provided with circulation port 10.The bottom of described seating nipple 9 is provided with circulation port 10.Interpolation block 4 is connected with outer socket 3, and interpolation block 4 is the horn mouth structure on same inclined-plane with the upper end of outer socket 3.Intubaction device comprises the spigot joint 26 and the intubate 27 of connection in turn.Intubate 27 bottoms are provided with circulation port 10, and the middle part is equipped with seal 2.The bottom of spigot joint 26 is provided with a cone structure, and this conical surface matches with the horn mouth of outer socket 3 upper ends.On outer socket 3, the intubate 27 seal 2 is installed.Interpolation block 4 is equipped with check pin 5 with the place of link of spigot 8.
During the operation completion, Intubaction device need not be installed, top connection 1 is connected with the completion screen casing, place completion tubular column bottom, 25 pairs of guide shoes are gone into the well casing post and are played guiding function.
Operation is during well-flushing, Intubaction device is inserted interpolation block 4 after, the upper plug heads 11 in the seating nipple 9 are backed down, leather cup 15 goes downwards to the circulation port of seating nipple 9 below 10, exposes circulation port 10, also is furnished with circulation port 10 on the intubate 27 of Intubaction device, these circulation ports 10 all are interconnected, so just, can realize the anti-flushing well operation, after well-flushing finishes, on carry Intubaction device, under the effect of outer spring 20 and inner spring 22, leather cup 15 will be returned to original position, and circulation port 10 is blocked, and realize sealing.
Claims (9)
1. horizontal well completion flushing valve, comprise top connection, outer socket, interpolation block, parent tube, footstock, spigot, seating nipple, upper plug head, the leather cup top connection, adjustable ring, pressure cap, leather cup, support ring, the core pipe, the leather cup lower contact, baffle ring, outer spring, lower end cap, inner spring, dead stifled, wiper block, guide shoe and Intubaction device, it is characterized in that described top connection is connected with guide shoe with parent tube in turn, outer socket is installed in the parent tube, outer socket in turn with interpolation block, spigot, seating nipple and dead stifled being connected, on dead the blocking up wiper block is installed, under the interpolation block footstock is installed, Intubaction device is installed on upper plug head, on interpolation block and the outer socket, upper plug head in turn with the leather cup top connection, adjustable ring, the core pipe, the leather cup lower contact is connected with lower end cap, under the lower end cap inner spring is installed, under the leather cup lower contact outer spring is installed, under the adjustable ring, in the leather cup lower contact, in the annular space between seating nipple and the core pipe pressure cap is installed in turn, leather cup, support ring.
2. horizontal well completion flushing valve according to claim 1 is characterized in that described outer socket top is provided with outer lug boss, and this outer lug boss lower end sits on the top of parent tube.
3. horizontal well completion flushing valve according to claim 1 is characterized in that described core pipe upper end is connected with the internal thread of leather cup top connection, and the lower end is connected with the internal thread of leather cup lower contact, and adjustable ring is connected with the external screw thread of leather cup top connection.
4. horizontal well completion flushing valve according to claim 1 and 2 is characterized in that the middle part of described parent tube is provided with circulation port.
5. horizontal well completion flushing valve according to claim 1 is characterized in that the bottom of described seating nipple is provided with circulation port.
6. horizontal well completion flushing valve according to claim 1 is characterized in that described interpolation block is connected with outer socket, and interpolation block is the horn mouth structure on same inclined-plane with the upper end of outer socket.
7. horizontal well completion flushing valve according to claim 1 is characterized in that described Intubaction device comprises the spigot joint and the intubate of connection in turn.
8. horizontal well completion flushing valve according to claim 7 is characterized in that described intubate bottom is provided with circulation port, and the middle part is equipped with seal.
9. horizontal well completion flushing valve according to claim 7 is characterized in that the bottom of described spigot joint is provided with a cone structure, and this conical surface matches with the horn mouth of outer socket upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205372328U CN201857913U (en) | 2010-09-15 | 2010-09-15 | Well washing valve for completion of horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205372328U CN201857913U (en) | 2010-09-15 | 2010-09-15 | Well washing valve for completion of horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201857913U true CN201857913U (en) | 2011-06-08 |
Family
ID=44103723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205372328U Expired - Fee Related CN201857913U (en) | 2010-09-15 | 2010-09-15 | Well washing valve for completion of horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201857913U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587289A (en) * | 2016-03-07 | 2016-05-18 | 中国石油天然气股份有限公司 | Well washing valve and tubular column with well washing valve |
| CN109267978A (en) * | 2018-09-07 | 2019-01-25 | 中国石油化工股份有限公司 | A kind of separate injection tubing string |
| CN115126450A (en) * | 2022-08-31 | 2022-09-30 | 山东普瑞思德石油技术有限公司 | Bottom filling tool with self-resetting and in-situ well backwashing functions |
-
2010
- 2010-09-15 CN CN2010205372328U patent/CN201857913U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587289A (en) * | 2016-03-07 | 2016-05-18 | 中国石油天然气股份有限公司 | Well washing valve and tubular column with well washing valve |
| CN105587289B (en) * | 2016-03-07 | 2017-12-05 | 中国石油天然气股份有限公司 | Flushing valve and the tubing string with flushing valve |
| CN109267978A (en) * | 2018-09-07 | 2019-01-25 | 中国石油化工股份有限公司 | A kind of separate injection tubing string |
| CN115126450A (en) * | 2022-08-31 | 2022-09-30 | 山东普瑞思德石油技术有限公司 | Bottom filling tool with self-resetting and in-situ well backwashing functions |
| CN115126450B (en) * | 2022-08-31 | 2022-11-22 | 山东普瑞思德石油技术有限公司 | Bottom filling tool with self-resetting and in-situ reverse well washing functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20110915 |