CN203285381U - Novel oil pipe blocking device - Google Patents
Novel oil pipe blocking device Download PDFInfo
- Publication number
- CN203285381U CN203285381U CN2013201053261U CN201320105326U CN203285381U CN 203285381 U CN203285381 U CN 203285381U CN 2013201053261 U CN2013201053261 U CN 2013201053261U CN 201320105326 U CN201320105326 U CN 201320105326U CN 203285381 U CN203285381 U CN 203285381U
- Authority
- CN
- China
- Prior art keywords
- main body
- oil pipe
- axial groove
- blanking plug
- spacing shaft
- 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 device for an oilfield, in particular to a novel oil pipe blocking device for oilfield water injection well blowout control operation. The novel oil pipe blocking device comprises a main body, an axial groove is formed in a locking sleeve, the upper end of the main body is connected with an axial groove in an impact sleeve through a limit screw in a matched mode, the limit screw can slide in the axial groove in the axial direction, the main body is sequentially connected with the locking sleeve and a rubber barrel in a sleeved mode, the main body is provided with a boss, the rubber barrel is located on the boss, the lower end of the main body is connected with a limit spear rod, and a clamping block is clamped around the limit spear rod through a sliding groove formed in the periphery of the limit spear rod. The novel oil pipe blocking device solves the problems that in water injection blowout control operation, well blocking construction is high in cost and low in success rate, direct delivery is used, oil pipe blocking can be completed in one hour, in the delivery process, the rubber barrel is in a contraction state, abrasion is avoided, the right first time of well blocking construction is effectively guaranteed, and construction cost is lowered.
Description
Technical field
The utility model relates to a kind of oil field equipment, is specifically related to a kind of oil pipe blanking plug of water injection well in oil fields preventing spraying operation.
Background technology
At present, in the construction of water injection well preventing spraying operation, each oil field is generally adopted cun semicanal (or hollow rod) to carry mechanical blanking plug and pursue in the oil pipe that root is pressed into pre-shutoff and realize blocking up well by hydraulic jack, this stifled well method complex process, activity duration are longer, and stifled well cost is high, and while constructing on the serious water injection well of fouling, impact due to the wearing and tearing of blanking plug glue spare and dirt layer, plugging effect is bad, and success rate is low, is unfavorable for applying.
Summary of the invention
The purpose of this utility model is for a kind of oil pipe blanking plug that can effectively guarantee the one-time success rate of stifled well construction simple in structure is provided.
The technical scheme that the utility model provides is:
The oil pipe blanking plug, comprise main body, be provided with axial groove in described lock sleeve, described main body upper end is in mating connection with the axial groove that shock puts by stop screw, and stop screw can endwisely slip in axial groove, and main body ring set successively connects lock sleeve and packing element, be provided with boss on described main body, packing element is seated on boss, and described main body lower end connects spacing shaft, and spacing shaft circumference makes fixture block be stuck in spacing shaft circumference by sliding tray is set.
Concrete, described lock sleeve is connected with the main body buttless thread.
Concrete, described packing element and main body interference fit.
Concrete, described spacing shaft and main body are threaded connection.
Concrete, be provided with connector between described spacing shaft and main body.
It is high that the utility model has solved in the water filling preventing spraying operation stifled well construction cost, the difficult problem that success rate is low, adopt directly and deliver, can complete oil pipe blocking in one hour, in distributing procedure, packing element is contraction state, not only can avoid wearing and tearing, also effectively guarantee the one-time success rate of stifled well construction, reduced construction cost.
Description of drawings
Fig. 1 is the utility model structural representation.
1 clashes into cover 2 main body 3 lock sleeve 4 packing element 5 spacing shaft 7 sliding tray 8 connector 9 axial groove 10 boss of fixture block 6.
The specific embodiment
The oil pipe blanking plug, comprise main body, be provided with axial groove in described lock sleeve, described main body upper end is in mating connection with the axial groove that shock puts by stop screw, and stop screw can endwisely slip in axial groove, and main body ring set successively connects lock sleeve and packing element, be provided with boss on described main body, packing element is seated on boss, and described main body lower end connects spacing shaft, and spacing shaft circumference makes fixture block be stuck in spacing shaft circumference by sliding tray is set.
The internal thread of described lock sleeve and the external screw thread of main body all are set to have the zigzag taper thread of self-locking property, and lock sleeve forms buttless thread with main body and is connected.Described lock sleeve and main body form the unidirectional self-lock structure by the buttless thread annexation.
Described packing element and main body interference fit.
Be provided with connector between described spacing shaft and main body.
Clash into cover and be limited on main body by stop screw, and move in the axial groove that clashes into cover.Lock sleeve and main body are assembled by buttless thread, and can realize the lock sleeve single-way moving.Packing element and main body are interference fit.Fixture block is realized sliding up and down by sliding tray.
Fixture block is equipped with in spacing shaft upper end at the oil pipe blanking plug, make the oil pipe blanking plug can only be descending in oil pipe, can not move up, guarantee so can, because top on well inner high voltage liquid produces inefficacy, not realize the purpose of oil pipe blocking after the packing element work of oil pipe blanking plug.
Before Operating Pressure, tubing plug is dropped in oil pipe, freely falling body stops when the special box cupling position falling, shock is enclosed within effect of inertia, produces impact and clashes into packing element by lock sleeve, makes the packing element compression, and under the effect of lock sleeve, make packing element be in compressive state, the sealing oil pipe, while fixture block down sliding, the grappling oil pipe, due to the effect of fixture block, bottom pressure is larger, grappling is tighter, realizes the oil pipe blocking purpose.
Should be noted that finally: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can modify or the part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (5)
1. oil pipe blanking plug, comprise main body, it is characterized in that, be provided with axial groove in described lock sleeve, described main body upper end is in mating connection with the axial groove that shock puts by stop screw, stop screw can endwisely slip in axial groove, main body ring set successively connects lock sleeve and packing element, is provided with boss on described main body, and packing element is seated on boss, described main body lower end connects spacing shaft, and spacing shaft circumference makes fixture block be stuck in spacing shaft circumference by sliding tray is set.
2. oil pipe blanking plug according to claim 1, is characterized in that, described lock sleeve and main body form the unidirectional self-lock structure by the buttless thread annexation.
3. oil pipe blanking plug according to claim 1, is characterized in that described packing element and main body interference fit.
4. oil pipe blanking plug according to claim 1, is characterized in that, described spacing shaft and main body are threaded connection.
5. oil pipe blanking plug according to claim 1, is characterized in that, is provided with connector between described spacing shaft and main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201053261U CN203285381U (en) | 2013-03-08 | 2013-03-08 | Novel oil pipe blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201053261U CN203285381U (en) | 2013-03-08 | 2013-03-08 | Novel oil pipe blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285381U true CN203285381U (en) | 2013-11-13 |
Family
ID=49541751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201053261U Expired - Fee Related CN203285381U (en) | 2013-03-08 | 2013-03-08 | Novel oil pipe blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138900A (en) * | 2017-06-28 | 2019-01-04 | 中国石油化工股份有限公司 | A kind of plugging device is located pipe nipple and cooperating equipment |
-
2013
- 2013-03-08 CN CN2013201053261U patent/CN203285381U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138900A (en) * | 2017-06-28 | 2019-01-04 | 中国石油化工股份有限公司 | A kind of plugging device is located pipe nipple and cooperating equipment |
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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: 20131113 Termination date: 20140308 |