CN201396113Y - Circlip type sliding sleeve oil drain - Google Patents
Circlip type sliding sleeve oil drain Download PDFInfo
- Publication number
- CN201396113Y CN201396113Y CN2009201078690U CN200920107869U CN201396113Y CN 201396113 Y CN201396113 Y CN 201396113Y CN 2009201078690 U CN2009201078690 U CN 2009201078690U CN 200920107869 U CN200920107869 U CN 200920107869U CN 201396113 Y CN201396113 Y CN 201396113Y
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- jump ring
- type sliding
- seating nipple
- circlip
- 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 - Lifetime
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Abstract
Disclosed is a circlip type sliding sleeve oil drain which is used for draining formation fluid inside oil pipes into wells during maintenance of oil well operation in the petroleum industry. The circlip type sliding sleeve oil drain comprises a positioning circlip (4), an actuation circlip (6), a draining switch (12) and the like, wherein the positioning circlip (4) is mounted on one side of a sliding sleeve (5) while the actuation circlip (6) is mounted on the other side, a locking nut (8) is mounted inside a working barrel (3), and the working barrel (3) is equipped with a drain hole (11).The circlip type sliding sleeve oil drain is adaptable to not only common vertical shafts but inclined shafts, and is particularly adaptable to oil wells in which large-diameter oil well pumps are set.
Description
Technical field
The utility model relates to a kind of oil with down-hole oil jacket channel switch, and is specifically a kind of when being used for the operation of petroleum industry oil well and safeguarding, formation fluid in the oil pipe is leaked into circlip type sliding sleeve bleeder in the well.
Background technology
Tubing drain is installed in the oil well pump top, is connected with oil pipe, and when oil well pump was normally pumped, bleeder was in closed condition.When the needs workover treatment, then open the draining hole, get rid of liquid in the oil pipe.The interior liquid of oil pipe enters in the well in the time of so just can having guaranteed oil pipe, avoids crude oil to overflow ground, and contaminated environment helps civilized construction.At present, all improving and developing various bleeders both at home and abroad, sleeve type, rotary, blasting type, disconnected pin formula etc. are being arranged.But generally speaking, the bleeder of its these structures is restricted by hole deviation, interior latus rectum, external diameter often, uses more at straight well, minor diameter oil well pump tubing string.But some problems often appear on the oil well applications of inclined shaft, big pump diameter.Existing pawl formula sliding sleeve bleeder often occurs when the tubing string rountrip that pawl is disconnected, pawl takes off phenomenon; Or in well, work for a long time, the claw spring lost efficacy, and bleeder can't be opened, and played pipe when causing operation and " played one and emit one " phenomenon, polluted ground environment.
Summary of the invention
The purpose of this utility model is to provide a kind of common straight well that both had been applicable to, also is applicable to inclined shaft, is specially adapted to be lowered to the circlip type sliding sleeve bleeder of large-diameter extraction oil pump oil well.
The utility model is achieved in that and comprises top connection, seating nipple, location jump ring, action jump ring, lock nut, lower contact, releasing device, seating nipple is connected respectively with between top connection, the lower contact, sliding sleeve is located in the seating nipple, one side of sliding sleeve is equipped with the location jump ring, opposite side is equipped with the action jump ring, lock nut is housed in the seating nipple, has the draining hole on the seating nipple, action jump ring and releasing device are connected.
The external surface of sliding sleeve is equipped with the location jump ring, and jump ring cross section, location is trapezoidal opening shape, and the inner surface of sliding sleeve is equipped with the action jump ring, and action jump ring cross section is trapezoidal opening shape.
Sliding sleeve, location jump ring, action jump ring are annular.
Top connection and seating nipple are provided with sealing ring.
Be provided with sealing ring between seating nipple and the lower contact.
Be provided with the sliding sleeve sealing ring between seating nipple and the action jump ring.
The sliding sleeve sealing ring at least more than one.
Be processed with chamfering C and groove A on the releasing device.
4-6 draining hole arranged on the seating nipple.
6 road axial oil circulation roads are arranged on the releasing device.
Advantage of the present utility model is: be provided with location jump ring (opening spring) at the sliding sleeve external surface; Be provided with action jump ring (opening spring) at the sliding sleeve inner surface.When the rod string upstream or downstream, the releasing device supporting with bleeder is connected movement therewith on the rod string.Be processed with chamfering C and groove A on the releasing device.Releasing device is along with rod string is axially movable, and its chamfering C acts on the action jump ring for the first time, and forces sliding sleeve to move; The cross section of groove A is identical with the cross section of action jump ring, when releasing device passed through sliding sleeve, the action jump ring blocked the groove A of releasing device, made releasing device give sliding sleeve on-off action power for the second time, thereby sliding sleeve is moved into place, guaranteed that the switch of circlip type sliding sleeve bleeder is reliable.
The effect of location jump ring: at the up certain stroke of sliding sleeve, the location jump ring falls in the locating slot of seating nipple inner surface, makes its position relative fixed, causes that to prevent the vibrations when hoisting pumping pipe string sliding sleeve falls, and blocks the draining hole once more.The utility model is owing to annex on the sliding sleeve is less, and design size is big, and latus rectum is bigger in it, is applicable to major diameter pump pumpingh well.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the releasing device schematic diagram that matches with the utility model structure.
Referring to Fig. 1, comprise top connection 1, seating nipple 3, location jump ring 4, action jump ring 6, lock nut 8, lower contact 10, releasing device 12, seating nipple 3 is connected respectively with between top connection 1, the lower contact 10, sliding sleeve 5 is located in the seating nipple 3, one side of sliding sleeve 5 is equipped with location jump ring 4, opposite side is equipped with action jump ring 6, and lock nut 8 is housed in the seating nipple 3, has draining hole 11 on the seating nipple 3.
The external surface of sliding sleeve 5 is equipped with location jump ring 4, and jump ring 4 cross sections, location are trapezoidal opening shape, and the inner surface of sliding sleeve 5 is equipped with action jump ring 6, and action jump ring 6 cross sections are trapezoidal opening shape.
Sliding sleeve 5, location jump ring 4, action jump ring 6 are annular.
Top connection 1 is provided with sealing ring 2 with seating nipple 3.
Be provided with sealing ring 9 between seating nipple 3 and the lower contact 10.
Be provided with sliding sleeve sealing ring 7 between seating nipple 3 and the action jump ring 6.
Sliding sleeve sealing ring 7 at least more than one.
4-6 draining hole arranged on the seating nipple 3.
As shown in Figure 2, be processed with chamfering C and groove A on the releasing device 12.6 road axial oil circulation roads are arranged on the releasing device 12.
The course of work of the present utility model:
When releasing device 12 during by sliding sleeve 5, action jump ring 6 snaps in the groove A at releasing device 12 middle parts, and this moment, releasing device 12 move downwards, overcame the elastic force of location jump ring 4, and sliding sleeve is descending contacts with lower contact 10 end faces in promotion.After sliding sleeve 5 stop motions, it is descending that releasing device 12 overcomes the continuation of action jump ring 6 elastic force, smoothly by lower contact 10, finishes the action of closing and commutate of bleeder this moment.When bleeder moves upward, finish the unlatching and the commutation action of bleeder by same principle, and location jump ring 4 falls in the locating slot of seating nipple 3 inner surfaces, make sliding sleeve 5 fixed-site.To prevent that the vibrations when hoisting pumping pipe string from causing that sliding sleeve 5 falls, and blocks draining hole 11 once more.
Sliding sleeve part-structure of the present utility model improves on the basis of existing technology: the action of sliding sleeve by the action jump ring realize with the cooperation of releasing device, the location of sliding sleeve matches with locating slot in the seating nipple and realizes by locating jump ring.
Claims (10)
1. circlip type sliding sleeve bleeder, comprise top connection (1), seating nipple (3), location jump ring (4), action jump ring (6), lock nut (8), lower contact (10), releasing device (12), it is characterized in that: seating nipple (3) is connected between (10) with top connection (1), lower contact respectively, sliding sleeve (5) is located in the seating nipple (3), one side of sliding sleeve (5) is equipped with location jump ring (4), opposite side is equipped with action jump ring (6), lock nut (8) is housed in the seating nipple (3), have draining hole (11) on the seating nipple (3), action jump ring (6) is connected with releasing device (12).
2. circlip type sliding sleeve bleeder according to claim 1 is characterized in that: the external surface of sliding sleeve (5) is equipped with location jump ring (4), and jump ring (4) cross section, location is trapezoidal opening shape; The inner surface of sliding sleeve (5) is equipped with action jump ring (6), and action jump ring (6) cross section is trapezoidal opening shape.
3. circlip type sliding sleeve bleeder according to claim 1 is characterized in that: sliding sleeve (5), location jump ring (4), action jump ring (6) are annular.
4. circlip type sliding sleeve bleeder according to claim 1 is characterized in that: be provided with sealing ring (2) between top connection (1) and the seating nipple (3).
5. circlip type sliding sleeve bleeder according to claim 1 is characterized in that: be provided with sealing ring (9) between seating nipple (3) and the lower contact (10).
6. circlip type sliding sleeve bleeder according to claim 1 is characterized in that: be provided with sliding sleeve sealing ring (7) between seating nipple (3) and the action jump ring (6).
7. circlip type sliding sleeve bleeder according to claim 6 is characterized in that: sliding sleeve sealing ring (7) at least more than one.
8. circlip type sliding sleeve bleeder according to claim 1 is characterized in that: be processed with chamfering C and groove A on the releasing device (12).
9. circlip type sliding sleeve bleeder according to claim 1 is characterized in that: 4～6 draining holes (11) are arranged on the seating nipple (3).
10. circlip type sliding sleeve bleeder according to claim 1 is characterized in that: 6 road axial oil circulation roads are arranged on the releasing device (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201078690U CN201396113Y (en) | 2009-05-07 | 2009-05-07 | Circlip type sliding sleeve oil drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201078690U CN201396113Y (en) | 2009-05-07 | 2009-05-07 | Circlip type sliding sleeve oil drain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201396113Y true CN201396113Y (en) | 2010-02-03 |
Family
ID=41618619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201078690U Expired - Lifetime CN201396113Y (en) | 2009-05-07 | 2009-05-07 | Circlip type sliding sleeve oil drain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201396113Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806200A (en) * | 2010-03-19 | 2010-08-18 | 中国石油天然气股份有限公司 | Interlaminar multistep control valve used for well completion |
| CN104790908A (en) * | 2015-04-29 | 2015-07-22 | 王俊德 | Oil drain device |
-
2009
- 2009-05-07 CN CN2009201078690U patent/CN201396113Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806200A (en) * | 2010-03-19 | 2010-08-18 | 中国石油天然气股份有限公司 | Interlaminar multistep control valve used for well completion |
| CN101806200B (en) * | 2010-03-19 | 2012-11-14 | 中国石油天然气股份有限公司 | Interlaminar multistep control valve used for well completion |
| CN104790908A (en) * | 2015-04-29 | 2015-07-22 | 王俊德 | Oil drain device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100203 |