CN206681706U - Press bottom formula oil release device for oil well - Google Patents
Press bottom formula oil release device for oil well Download PDFInfo
- Publication number
- CN206681706U CN206681706U CN201720423287.8U CN201720423287U CN206681706U CN 206681706 U CN206681706 U CN 206681706U CN 201720423287 U CN201720423287 U CN 201720423287U CN 206681706 U CN206681706 U CN 206681706U
- Authority
- CN
- China
- Prior art keywords
- slip pipe
- lower contact
- center tap
- pipe lower
- oil
- 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.)
- Active
Links
Landscapes
- Earth Drilling (AREA)
Abstract
Bottom formula oil release device for oil well is pressed, is related to downhole tool field used in oil extraction in oil field.Including interconnected top connection, center tap and slip pipe lower contact, top connection is threaded in the upper end of center tap, slip pipe lower contact is slidably disposed in the lower port of center tap, and between connected by cutting pin, the upper end center of slip pipe lower contact is also associated with push rod；Annular groove is provided with center tap inwall between the slip pipe lower contact and center tap, is provided with lock ring in annular groove, the inner surface setting of lock ring has an engaging tooth, and the outer surface of the slip pipe lower contact below lock ring is provided with the barb teeth coordinated with engaging tooth.The utility model solves the problems, such as hammering oil discharger and fluid pressure type bleeder generally existing, and does not influence normal production and the oil pumping efficiency of pump of oil well pump when in use, has the advantages that using reliable, simple in construction, reusable.
Description
Technical field
Downhole tool field used in oil extraction in oil field is the utility model is related to, is specially a kind of pressure bottom formula oil release device for oil well.
Background technology
" oil pumper+tubing pump " is one of most common mechanical oil production model, and well workover work is being carried out to this kind of oil well
When industry plays oil pipe, in order to prevent taking the crude oil in oil pipe to ground, typically take and draining is installed in oil pipe bottom appropriate location
The method of device, during pumping up pipe in inspection, the profit in oil pipe is set to let out oil jacket annular space.
Study various bleeders, generally existing some problems, the subject matter as existing for hammering oil discharger in oil field：1) let out
Oily pin uses gasket seal（Or sealing ring）Sealed, when normally producing, because tubing string internal pressure is more than external pressure,
Internal pressure pushes out draining pin, occasionally results in gasket seal（Or sealing ring）Premature failure, tubing string is caused to miss.2）Hit
Rod can not sever draining pin sometimes.
It is and insufficient existing for fluid pressure type bleeder：1) the pressure explosion value for sealing copper sheet is not fixed easily, during site operation not
It is easily mastered very much pressurization value.2) fasten pin sometimes to loosen, sealing copper sheet sealing is poor, meeting seepage, influences the normal production of oil well.
3) draining needs special car to coordinate, and adds construction cost.
Utility model content
The purpose of this utility model is that solve the problems, such as hammering oil discharger and fluid pressure type bleeder generally existing, there is provided a kind of
It is connected to below flow string standing valve for oil-well pump, does not influence normal production and the oil pumping efficiency of pump of oil well pump, have use can
The bleeder for the advantages that leaning on, be simple in construction, be reusable.
Realizing the technical scheme of above-mentioned purpose is：Press bottom formula oil release device for oil well, it is characterised in that：It is upper including what is be interconnected
Joint, center tap and slip pipe lower contact, top connection are threaded in the upper end of center tap, and slip pipe lower contact is slidably disposed on
In the lower port of center tap, and between connected by cutting pin, the upper end center of slip pipe lower contact is also associated with push rod；
Annular groove is provided with center tap inwall between the slip pipe lower contact and center tap, lock is provided with annular groove
Ring, the inner surface setting of lock ring have an engaging tooth, and the outer surface of the slip pipe lower contact below lock ring is provided with and engaging tooth coordinates
Barb teeth.
Further, the push rod is provided with the central through hole of connection slip pipe lower contact inner chamber, and the side wall of push rod is provided with
Connect the radial hole of top connection inner chamber.
Further, the lock ring is in annular, and is provided with opening, and both sides of the lock ring centered on opening are symmetrical
It is provided with and draws high screwed hole, the through hole concentric with stretching screwed hole is provided with the outer wall of the center tap.
Further, restricted slip pipe lower contact descending step is set between center tap and slip pipe lower contact.
The utility model is in use, be connected to standing valve for oil-well pump lower end, together with oil well pump in lower going-into-well.In oil well pump
During examining pump, external 10-20 m tubing strings are transferred to shaft bottom on the basis of former well casing post, by artificial bottom of a well or sand control
Top of fish is support, and when pressurizeing 20-30 kN, the lower contact of slip pipe slip pipe and the center tap of bleeder relatively move, simultaneously
Shear pin is cut, slip pipe lower contact moves up the valve ball for making push rod jack up standing valve upwards with respect to center tap and jacked up, standing valve
Open, the profit in flow string is let out to oil well, while the engaging tooth in the barb teeth and lock ring of slip pipe lower contact outer wall is stung
Close, slip pipe lower contact is relative when prevention flow string above carries moves down, it is ensured that standing valve is in and opened all the time during upper lifting pipe post
Shape is opened, so as to reach the purpose of draining.
The utility model solves the problems, such as hammering oil discharger and fluid pressure type bleeder generally existing, and when in use not
Normal production and the oil pumping efficiency of pump of oil well pump are influenceed, is had the advantages that using reliable, simple in construction, reusable.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the top view of lock ring.
Embodiment
As shown in Figure 1, 2, the utility model includes interconnected top connection 1, center tap 2 and slip pipe lower contact 7, above connects
First 1 is threaded in the upper end of center tap 2, and slip pipe lower contact 7 is slidably disposed in the lower port of center tap 2, and it
Between connected by cutting pin 3, restricted slip pipe lower contact 7 descending step 9 is set between center tap 2 and slip pipe lower contact 7.
The upper center of slip pipe lower contact 7 is also associated with push rod 8, and push rod 8 is provided with the inner chamber of connection slip pipe lower contact 7
Heart through hole 8-1, the side wall of push rod 8 are provided with the radial hole 8-2 of connection top connection 1 inner chamber, pass through central through hole 8-1, radial hole
8-2 improves the flow of bleeder.
Annular groove 2-1 is provided with the inwall of center tap 2 between slip pipe lower contact 7 and center tap 2, is set in annular groove 2-1
Lock ring 10 is equipped with, the inner surface setting of lock ring 10 has engaging tooth 10-1, and the outer surface of the slip pipe lower contact 7 of the lower section of lock ring 10 is set
There is the barb teeth 7-1 coordinated with engaging tooth 10-1.
Lock ring 10 is in annular, and is provided with opening 10-2, symmetrical centered on opening 10-2 on the outer wall of lock ring 10
It is provided with and draws high screwed hole 10-3, the through hole 2- concentric with stretching screwed hole 10-3 is provided with the outer wall of the center tap 2
2。
It is sliding in assembling because the outer surface of slip pipe lower contact 7 is provided with the barb teeth 7-1 coordinated with engaging tooth 10-1
Barb teeth 7-1 in pipe lower contact 7 can not be passed down through the engaging tooth 10-1 of the inner surface of lock ring 10, therefore lock ring 10 is provided with out
Mouth 10-2, and be provided with the outer wall of lock ring 10 and draw high screwed hole 10-3, when assembling slip pipe lower contact 7 from top to bottom, lead to
Cross threaded to be connected with the screwed hole 10-3 on lock ring 10, and pull out threaded, open the opening 10-2 of lock ring 10, just
In the assembling of slip pipe lower contact 7.
Claims (4)
1. press bottom formula oil release device for oil well, it is characterised in that：Including interconnected top connection, center tap and slip pipe lower contact, on
Joint screw thread is connected to the upper end of center tap, and slip pipe lower contact is slidably disposed in the lower port of center tap, and between
Connected by cutting pin, the upper end center of slip pipe lower contact is also associated with push rod；
Annular groove is provided with center tap inwall between the slip pipe lower contact and center tap, lock ring is provided with annular groove,
The inner surface setting of lock ring has an engaging tooth, and the outer surface of the slip pipe lower contact below lock ring is provided with the hangnail coordinated with engaging tooth
Tooth.
2. pressure bottom formula oil release device for oil well according to claim 1, it is characterised in that：The push rod is provided with connection slip pipe
The central through hole of joint inner chamber, the side wall of push rod are provided with the radial hole of connection top connection inner chamber.
3. pressure bottom formula oil release device for oil well according to claim 1, it is characterised in that：The lock ring is in annular, and is set
There is opening, both sides of the lock ring centered on opening, which are symmetrically arranged with, draws high screwed hole, is set on the outer wall of the center tap
There is the through hole concentric with stretching screwed hole.
4. pressure bottom formula oil release device for oil well according to claim 1, it is characterised in that：Set between center tap and slip pipe lower contact
It is equipped with the descending step of limitation slip pipe lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720423287.8U CN206681706U (en) | 2017-04-21 | 2017-04-21 | Press bottom formula oil release device for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720423287.8U CN206681706U (en) | 2017-04-21 | 2017-04-21 | Press bottom formula oil release device for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206681706U true CN206681706U (en) | 2017-11-28 |
Family
ID=60403827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720423287.8U Active CN206681706U (en) | 2017-04-21 | 2017-04-21 | Press bottom formula oil release device for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206681706U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677481A (en) * | 2020-06-08 | 2020-09-18 | 辽宁新华仪器有限公司 | High-pressure oil drainage tool |
| CN111810081A (en) * | 2019-04-12 | 2020-10-23 | 中国石油天然气集团有限公司 | Oil drainage device |
-
2017
- 2017-04-21 CN CN201720423287.8U patent/CN206681706U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810081A (en) * | 2019-04-12 | 2020-10-23 | 中国石油天然气集团有限公司 | Oil drainage device |
| CN111677481A (en) * | 2020-06-08 | 2020-09-18 | 辽宁新华仪器有限公司 | High-pressure oil drainage tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206693997U (en) | Oil field separates adopts technology tubular column | |
| CN206681706U (en) | Press bottom formula oil release device for oil well | |
| CN105804680A (en) | Under-pressure well repairing working device and method of oil-gas field | |
| CN205605156U (en) | Workover device is pressed in oil gas field area | |
| CN204532255U (en) | Ground hydraulic open-type down-hole drainage device | |
| CN106761577A (en) | Oil field separates adopts technology tubular column | |
| CN206681707U (en) | Hammering oil discharger | |
| CN110513070B (en) | Flap type downhole oil pipe hydraulic control blowout preventer | |
| CN107542418A (en) | High-pressure oil-gas well hydraulic oil pipe anchoring device and its method of work | |
| CN111188590A (en) | Plugging integrated efficient water plugging pipe column and oil extraction method | |
| CN204252930U (en) | Fracturing packer | |
| GB2588029A (en) | Annular controlled safety valve system and method | |
| CN203145896U (en) | Oil field oil well CO2 airlock prevention flow string | |
| CN207161033U (en) | Change well mouth sealing device | |
| CN203702106U (en) | Dynamic pipe oil extraction device | |
| CN206158663U (en) | Minor diameter double -piston ground liquid accuse compression packer | |
| CN206190235U (en) | Beam -pumping unit stops sucker rod linkage for well | |
| CN210858637U (en) | Turning plate type underground oil pipe hydraulic control blowout preventer | |
| CN209818031U (en) | Oil extraction device of canned composite continuous oil pipe conveyor unit | |
| CN203230386U (en) | Oil drainage device with outer sliding sleeve | |
| CN202560154U (en) | Venting cable-penetrated packer | |
| CN208310732U (en) | A kind of hydraulic-driven adjustable height casing head | |
| CN202249947U (en) | Subsurface safety valve | |
| CN201103372Y (en) | Sucker-rod pumping well completion tubular pile plugging device for oil well operation under pressure | |
| CN111058792A (en) | Coiled tubing perforation-free under-pressure operation-free well completion device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |