CN202970623U - One-way oil draining device - Google Patents
One-way oil draining device Download PDFInfo
- Publication number
- CN202970623U CN202970623U CN201220567639.4U CN201220567639U CN202970623U CN 202970623 U CN202970623 U CN 202970623U CN 201220567639 U CN201220567639 U CN 201220567639U CN 202970623 U CN202970623 U CN 202970623U
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- CN
- China
- Prior art keywords
- main body
- draining
- claw
- oil
- sealing shroud
- 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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Abstract
The utility model relates to a one-way oil draining device which mainly comprises a cylindrical main body, and a shearing device inserted into the main body, wherein the lower end of the cylindrical main body is connected with a lower connector; an oil draining hole is formed in the main body; an oil draining choke plug is mounted in the oil draining hole; a seal sleeve is arranged on the outer side of the periphery of the main body; the axial lower end of the seal sleeve is connected with a sheath matched with the periphery of the lower connector; an elastic component pushing against the lower end of the seal sleeve is arranged in the sheath; oil draining ports are formed in the seal sleeve in a wrapping manner; and the seal sleeve conducts one-way plugging on the oil draining ports. The one-way oil draining device is simple in structure, convenient to use and reliable in performance, is reliable in seal when being connected with an oil pipe during regular production of an oil well, does not affect normal oil pumping production, can effectively drain oil during operation, can prevent a fluid outside the pipe from flowing inwards the pipe, and is reliable in blowout prevention performance.
Description
Technical field
The utility model relates to a kind of one-way drip, is particularly useful for taking on the sucker rod pump producing well of controlled snubbing serving technology.
Background technology
Bleeder in the past, no matter be fluid pressure type bleeder, lifting type oil draining equipment or hammering oil discharger, all in playing the pipe process, form and be communicated with in oil pipe with outside oil pipe, fluid in oil pipe flows freely in the outer pit shaft of pipe under pressure, and when preventing operation, tube fluid pollutes the well site, ground.
The controlled snubbing serving technology of oil well can reduce the pollution of well killing fluid to oil reservoir in operation process, improves operating efficiency, reduces operating cost.But in the snubbing serving process, in case the down-hole abnormal, the pressure outside oil pipe is greater than the pressure in oil pipe, and the outer fluid of oil pipe just can enter in oil pipe along the bleeder passage, then may cause overflow or blowout.
Therefore, needing that development is a kind of can draining (fluid in manage is let out to pipe outer), one-way drip that again can blowout prevention (preventing that the direction of flow pipe outside oil pipe is interior).All can't satisfy this requirement of controlled snubbing serving technique for the oil release device for oil well of using in the past, the controlled snubbing serving of above-mentioned oil well has proposed Secretary to oil pipe internal drainage, must can also blowout prevention when requiring effective draining.
The utility model content
For solve above-mentioned can draining again can blowout prevention requirement, the utility model provides a kind of one-way drip, the general thought of taking is on the basis of existing lifting type oil draining equipment, increases a kind of check configuration at drain tap, concrete technical solution is:
A kind of one-way drip, this one-way drip comprises that mainly the lower end connects the cylindrical body of lower contact and is plugged in the interior clipper of described main body, be provided with the draining hole in described main body, the draining plug is installed in described draining hole, it is characterized in that, described sealing shroud is located at the periphery of described main body, the lower axial end of described sealing shroud is connected with the sheath that coordinates with the lower contact periphery, be provided with the elastomeric element with described sealing shroud lower end abutment in this sheath, described sealing shroud is put the drain tap bag in it and to described drain tap and is carried out unidirectional shutoff.
Described sealing shroud upper semisection with its in described main body between be formed with open after the ring cavity that communicates of described drain tap,
Described sealing shroud one end face is by realizing sealing between sealing copper ring and described main body, the other end of described sealing shroud is by realizing sealing between sealing ring and described main body.
Described drain tap is provided with a plurality of symmetrically.
Described main body lower end connects lower contact, is provided with the spring that described sealing shroud is resetted between described lower contact and described sealing shroud.
Drain tap in described main body is provided with the draining plug, and described draining plug compresses by the screw thread of plug.Preferred described plug is that hollow interior hexagonal, periphery are screw threads.
Described draining plug center has blind hole, and the shutoff end of described blind hole is in the inboard.
The position over against drain tap in described body interior is provided with draw ring, and this draw ring is moved down by the step limits on described main body.
Described draw ring side has a plurality of holes, and described a plurality of borehole jacks are on described draining plug.
Described clipper is made of center-pole, claw, and described catch jacket can move on described center-pole on described center-pole.
Described claw is that elasticity steel, front end are three valve structures, and when described claw was in described center-pole top, described claw can inwardly compress, thereby external diameter diminishes.
Described center-pole bottom is cone structure, when described claw is in described center-pole bottom, described claw just in time with described cone match, make described claw can't inwardly compress to block other instruments.
According to the utility model, can realize sealing reliable structure, do not affect normal oil pumping production.Be connected on oil pipe by the standard oil pipe thread, drain tap adopts the copper plug to compress, so when oil well is normally produced, sealing is reliable, does not affect normal oil pumping production.
When needing draining, on carry sucker rod, clipper will be cut off the draining plug and complete draining, operation is simple for draining thus.
Be provided with a plurality of symmetrical drain taps, the diameter of each drain tap reaches φ 16mm, and draining is smooth thus, resistance is little.
By unidirectional draining, effectively blowout prevention.The drain tap place is provided with sealing shroud, and sealing shroud has adopted the structural principle of one way valve, has realized that the fluid in the pipe can flow to outside pipe, and the outer fluid of pipe can't flow in pipe, and having reached is the draining purpose of blowout prevention again.
The one-way valve structures of sleeve type makes compact overall structure, external diameter little, and the tubing string external diameter that is fit to controlled snubbing serving changes little requirement.
Description of drawings
Fig. 1 is the utility model integrally-built partly cut-away schematic diagram;
Fig. 2 is the enlarged diagram of the circle mark part in Fig. 1;
Fig. 3 is the concrete structure figure of draw ring;
Fig. 4 is the biopsy cavity marker devices schematic diagram of claw;
Fig. 5 is the A-A sectional view in Fig. 4.
Label declaration:
1: lower contact 2: sheath 3: spring
4: sealing ring 5: sealing shroud 6: main body
7: draw ring 8: draining plug 9: plug
10: sealing ring 11: sealing copper ring 12: claw
13: center-pole 14: clipper 61: ring cavity
62: step
The specific embodiment
Below, by reference to the accompanying drawings embodiment of the present utility model is described.
Fig. 1 is the utility model integrally-built partly cut-away schematic diagram.As shown in Figure 1, one-way drip comprises that mainly the lower end connects the cylindrical body 6 of lower contact and is plugged in clipper 14 in main body 6, is provided with the draining hole in main body 6, installation draining plug 8 in this draining hole.Sealing shroud 5 is located at the periphery of main body 6, and the lower axial end of sealing shroud 5 is connected with the sheath 2 that coordinates with lower contact 1 periphery, is provided with the elastomeric element with sealing shroud 5 lower end abutment in this sheath 2, and for example spring 3.Sealing shroud 5 is put the drain tap bag in it and to drain tap and is carried out unidirectional shutoff.
The upper semisection of sealing shroud 5 with its in main body 6 between be formed with open after the ring cavity 61 that communicates of drain tap, one end face of sealing shroud 5 is by realizing sealing between sealing copper ring 11 and main body 6, the other end of sealing shroud 5 is by realizing sealing between sealing ring 10 and main body 6.
Drain tap is provided with a plurality of, and preferably a plurality of drain taps is set symmetrically, and the diameter of each drain tap can reach φ 16mm.
The lower end of main body 6 connects lower contact 1, is provided with the spring 3 that sealing shroud 5 is resetted between this lower contact 1 and sealing shroud 5.
Drain tap in main body 6 is provided with draining plug 8, and this draining plug 8 compresses by the screw thread of plug 9, and plug 9 is screw thread for hollow interior hexagonal, periphery.
Draining plug 8 centers have blind hole, and the shutoff end of this blind hole is in the inboard.
As shown in Figures 2 and 3, the position over against drain tap in main body 6 inside is provided with draw ring 7, and this draw ring 7 is moved down by step 62 restrictions on main body 6, and the concrete structure of draw ring 7 is shown in Figure 3, draw ring 7 sides have a plurality of holes, and these a plurality of borehole jacks are on draining plug 8.
As Fig. 1, shown in Figure 45, clipper 14 is made of center-pole 13 and claw 12, and claw 12 is enclosed within on center-pole 13, can move on center-pole 13.
The main part of this one-way drip is connected with oil pipe, under oil pipe lower going-into-well together.Clipper 15 is connected with sucker rod, in being lowered to process, center-pole 13 enters one-way drip main body 6, thereby claw 12 with can be under the promotion of locknut after draw ring 7 inner conical surfaces contact inwardly the compression external diameter diminish and pass draw ring 7, claw 12 can restore to the original state rapidly after passing through, be lowered into the bottom of one-way drip main body 6 along with sucker rod, carry out normal oil pumping and produce.
When needing the stopping production operation, at first trip out sucker rod, put forward the sucker rod process upper, claw 12 can be along with center-pole 13 moves upward, when claw 12 moves to draw ring 7 positions can stop motions.And the bottom of center-pole 13 is cone structure, carries sucker rod in continuation, when claw 12 is in center-pole 13 bottom, claw 12 just in time with cone match, claw can't inwardly be compressed, thereby can block draw ring 7.Claw 12 can drive draw ring 7 and move upward, thereby cuts off draining plug 8, makes in oil pipe and forms connection outward with oil pipe, and the fluid in oil pipe flows freely under pressure in the outer pit shaft of pipe and completes draining.
Sealing shroud 5 in the arranged outside of one-way drip main body, adopted the structural principle of one way valve, after draining plug 8 is cut off, when the pressure in oil pipe during greater than the oil pipe external pressure, fluid in oil pipe will be pushed sealing shroud 5 open and carry out draining, when ground pressure outside oil pipe during more than or equal to the oil pipe internal pressure, sealing shroud 5 is under the effect of upper and lower end face pressure reduction and spring 3 elastic force, closing passage moves upward, make in oil pipe and isolate outward with oil pipe, avoid the outer fluid of oil pipe to enter oil pipe along drain tap, thereby caused overflow or gas blowout accident.
Thus, realize the reliable structure of sealing, do not affected normal oil pumping production.Be connected on oil pipe by the standard oil pipe thread, drain tap adopts the copper plug to compress, so when oil well is normally produced, sealing is reliable, does not affect normal oil pumping production.
By a plurality of symmetrical drain taps are set, the diameter of each drain tap reaches φ 16mm, and draining is smooth thus, resistance is little.
By being provided with sealing shroud at the drain tap place, sealing shroud 5 has adopted the structural principle of one way valve, thus, has realized that the fluid in the pipe can flow to outside pipe, the outer fluid of pipe can't flow in pipe, reached be draining again the purpose of blowout prevention by unidirectional draining, effective blowout prevention.
The one-way valve structures of sleeve type makes compact overall structure, external diameter little, and the tubing string external diameter that is fit to controlled snubbing serving changes little requirement.
This device is applicable to take the sucker rod pump producing well of controlled snubbing serving technology, also is suitable for simultaneously conventional sucker rod pump producing well.
Claims (10)
1. one-way drip, this one-way drip comprise that mainly the lower end connects the cylindrical body of lower contact and is plugged in clipper in described main body, are provided with the draining hole in described main body, and installation draining plug in described draining hole is characterized in that,
Described sealing shroud is located at the periphery of described main body, the lower axial end of described sealing shroud is connected with the sheath that coordinates with the lower contact periphery, be provided with the elastomeric element with described sealing shroud lower end abutment in this sheath, described sealing shroud is put the drain tap bag in it and to described drain tap and is carried out unidirectional shutoff.
2. one-way drip as claimed in claim 1, is characterized in that,
Described sealing shroud upper semisection with its in described main body between be formed with open after the ring cavity that communicates of described drain tap,
Described sealing shroud one end face is by realizing sealing between sealing copper ring and described main body, the other end of described sealing shroud is by realizing sealing between sealing ring and described main body.
3. one-way drip as claimed in claim 1, is characterized in that,
Described drain tap is provided with a plurality of symmetrically.
4. one-way drip as described in any one in claims 1 to 3, is characterized in that,
Drain tap in described main body is provided with the draining plug, and described draining plug compresses by the screw thread of plug.
5. one-way drip as claimed in claim 4, is characterized in that,
Described draining plug center has blind hole, and the shutoff end of described blind hole is in the inboard.
6. one-way drip as claimed in claim 5, is characterized in that,
The position over against drain tap in described body interior is provided with draw ring, and this draw ring is moved down by the step limits on described main body.
7. one-way drip as claimed in claim 6, is characterized in that,
Described draw ring side has a plurality of holes, and described a plurality of borehole jacks are on described draining plug.
8. one-way drip as claimed in claim 1, is characterized in that,
Described clipper is made of center-pole, claw,
Described catch jacket can move on described center-pole on described center-pole.
9. one-way drip as claimed in claim 8, is characterized in that,
Described claw is that elasticity steel, front end are three valve structures, and when described claw was in described center-pole top, described claw can inwardly compress, thereby external diameter diminishes.
10. one-way drip as claimed in claim 8 or 9, is characterized in that,
Described center-pole bottom is cone structure, and when described claw was in described center-pole bottom, described claw and described cone match made described claw can't inwardly compress to block other instruments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220567639.4U CN202970623U (en) | 2012-10-31 | 2012-10-31 | One-way oil draining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220567639.4U CN202970623U (en) | 2012-10-31 | 2012-10-31 | One-way oil draining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970623U true CN202970623U (en) | 2013-06-05 |
Family
ID=48511710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220567639.4U Expired - Fee Related CN202970623U (en) | 2012-10-31 | 2012-10-31 | One-way oil draining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970623U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678708A (en) * | 2018-06-29 | 2018-10-19 | 托普威尔石油技术股份公司 | A kind of controllable bleeder |
| CN108915636A (en) * | 2018-09-14 | 2018-11-30 | 天津大港油田石油工程研究院钻采技术开发有限公司 | Anti- liquid hammer bleeder |
-
2012
- 2012-10-31 CN CN201220567639.4U patent/CN202970623U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678708A (en) * | 2018-06-29 | 2018-10-19 | 托普威尔石油技术股份公司 | A kind of controllable bleeder |
| CN108915636A (en) * | 2018-09-14 | 2018-11-30 | 天津大港油田石油工程研究院钻采技术开发有限公司 | Anti- liquid hammer bleeder |
| CN108915636B (en) * | 2018-09-14 | 2023-12-15 | 天津大港油田石油工程研究院钻采技术开发有限公司 | Liquid impact resistant oil drain device |
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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: 20130605 Termination date: 20211031 |