CN201334890Y - Blanking plug - Google Patents
Blanking plug Download PDFInfo
- Publication number
- CN201334890Y CN201334890Y CNU2009200832591U CN200920083259U CN201334890Y CN 201334890 Y CN201334890 Y CN 201334890Y CN U2009200832591 U CNU2009200832591 U CN U2009200832591U CN 200920083259 U CN200920083259 U CN 200920083259U CN 201334890 Y CN201334890 Y CN 201334890Y
- Authority
- CN
- China
- Prior art keywords
- blanking plug
- lower contact
- shroud
- plugging
- inserted link
- 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
The utility model relates to an underground plugging tool for the oil field, in particular to a blanking plug put into an oil pipe through a steel wire. The blanking plug comprises a locking part and a plugging part, wherein, the locking part comprises a recovery neck, an expansion sleeve, a sleeve shield, a special spring, a key block and a lower joint. The special spring props up the key block to lock the key block in a groove prearranged at a pipe column, a longer sealing section is arranged at the lower end of the plugging part; and after the locking is finished, the sealing section is inserted into a bypass flowing channel hole below the plugging place to realize the plugging function. The utility model has the advantages that the oil pipe can be sealed by simple actions, so that the operation is simple, the working efficiency is improved and the operation cost is reduced. Meanwhile, the recovery can be realized, the blanking plug can be reused, and the structure design is simple. Therefore, the utility model has higher practical values and facilities the popularization and the application.
Description
Technical field
The utility model relates to oil field down-hole capping tools, especially a kind of blanking plug that uses in oil pipe.
Background technology
At present, interim if desired shutoff oil pipe in oil gas well operations process, for example snubbing serving, generally be to use the small-sized bridging plug as the oil pipe calker, but this method for blocking need be equipped with special minor diameter tubing when being lowered to bridging plug, and can't reclaim after bridging plug is lowered to, bore and remove trouble, this has just additionally increased operating cost.
Summary of the invention
The purpose of this utility model is exactly in order to overcome the weak point of above-mentioned background technology, and a kind of blanking plug is provided, and it can be provided convenience for interim shutoff oil pipe, and can reclaim.
The purpose of this utility model realizes by following technical measures: a kind of blanking plug, and it comprises lock portion and blocking portion, described blocking portion is inserted in the lock portion; Described lock portion is cylinder mode, be socketed to form in turn by recovery neck, expansion sleeve, shroud, packing lining, five parts of lower contact, described shroud is provided with a special-shaped shell fragment near an end inboard of reclaiming neck, special-shaped shell fragment end is connected with the key piece, but the position of corresponding keys piece is provided with the breach that the donating bond piece ejects on the shroud, expansion sleeve is between special-shaped shell fragment and the packing lining, the packing lining is connected between shroud and the lower contact, packing lining outside is provided with one group of black box, the lower end closed of lower contact, lower contact are provided with the bypass flow channel hole; Described blocking portion is a cylindrical inserted link, and the position in corresponding bypass flow channel hole, inserted link lower end is provided with a seal section, and the sealing section is fixed by the inserted link cap of inserted link end.
In technique scheme, between the parts of described lock portion with the mode socket of screw thread.
In technique scheme, described seal section adds that by two groups of black boies black box intermetallic metal spacer ring forms.
In technique scheme, described black box is combined by V-type rubber packing and metal collar.
In technique scheme, be provided with a sealing ring at the socket place of packing lining and lower contact.
The prior art of comparing advantage of the present utility model is only to need simple action can seal oil pipe, easy to operate, improved operating efficiency greatly, reduced operating cost, and can realize reclaiming and can use repeatedly, structure design is simple, in sum, the utlity model has bigger practical value, very be beneficial to and apply.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the utility model blanking plug.
Fig. 2 is the enlarged drawing at A place among Fig. 1.
Fig. 3 is the view before the lock portion of the utility model blanking plug is gone into the well.
Fig. 4 is the view after the lock portion of the utility model blanking plug is gone into the well.
The specific embodiment
The blanking plug that the utility model provides is applicable in the oil gas well that the groove joint is housed in the oil pipe tubing string in advance, finishes capping operation.
The utility model will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, 2, a kind of blanking plug, it is made up of lock portion and blocking portion, and described blocking portion is inserted in the lock portion; Because the utility model is to be lowered in the oil gas well oil pipe to use, therefore the lock portion structure is cylinder mode, consider processing and the convenience of installing, the utility model embodiment is designed to be socketed to form in turn by recovery neck 2, expansion sleeve 3, shroud 7, packing lining 8,10 5 parts of lower contact, can adopt closely between each parts to be threaded.Described shroud 7 is provided with a special-shaped shell fragment 4 near an end inboard of reclaiming neck 2, special-shaped shell fragment 4 ends are connected with key piece 6, but the position of corresponding keys piece 6 is provided with the breach that donating bond piece 6 ejects on the shroud 7, expansion sleeve 3 is between special-shaped shell fragment 4 and the packing lining 8, but and under the control of wire rope realization slide up and down freely.When reclaiming neck 2 and expansion sleeve 3 downward movements, squeeze key pushing block 6 and outwards expand, protrude outer round surface, form lock dog to be locked in the groove of pre-installing on the oil pipe; When reclaiming neck 2 and expansion sleeve 3 upstrokes, extrusion spring 4 tops make spring drive key piece 6 and draw in the withdrawal shroud 7, realize release.
The lower end closed of lower contact 10, lower contact 10 is provided with bypass flow channel hole 1, and this bypass flow channel hole 1 is used for the borehole pressure of balance when being lowered to blanking plug.
Described blocking portion is a cylindrical inserted link 5, the position in corresponding bypass flow channel hole, inserted link 5 lower ends 1 is provided with a seal section, the sealing section is made up of two groups of black boies, the 9 middle metal spacer rings 12 of broad that add, this design has strengthened bearing the ability of hydraulic shock when the shutoff runner, the sealing section is fixing by the inserted link cap 13 of inserted link 5 ends.
As shown in Figure 3, in the utility model embodiment, blanking plug during state, reclaims neck 2 before going into the well, expansion sleeve 3 is in the upstroke position, and extruding heterotypic spring 4 tops make heterotypic spring drive key piece 6 and draw in and be retracted in the shroud 7; As shown in Figure 4, when lock portion is lowered into predetermined groove position with wire rope, reclaim neck 2 and expansion sleeve 3 downward movements, squeeze key pushing block 6 and outwards expands, protrude outer round surface, form lock dog, be in locking state at this moment to be locked in the groove of pre-installing on the oil pipe; Insert blocking portion downwards after lock portion is in locking state, makes spacer ring 12 just in time be positioned at 1 place, bypass flow channel hole, spacer ring 12 upper and lowers respectively have one group of black box 9, can bear fluid pressure and impact force, realize the shutoff function.During recovery, trip out blocking portion earlier and open bypass flow channel hole 1 equilibrium pressure, carry on again and reclaim neck 2, expansion sleeve 3, drive 6 withdrawals of key piece, release, a promptly recyclable kit.
Claims (5)
1. blanking plug, it is characterized in that: comprise lock portion and blocking portion, described blocking portion is inserted in the lock portion; Described lock portion is cylinder mode, by reclaiming neck (2), expansion sleeve (3), shroud (7), packing lining (8), (10) five parts of lower contact are socketed to form in turn, described shroud (7) is provided with a special-shaped shell fragment (4) near an end inboard of reclaiming neck (2), special-shaped shell fragment (4) end is connected with key piece (6), shroud (7) go up corresponding keys piece (6) but the position be provided with the breach that donating bond piece (6) ejects, expansion sleeve (3) is between special-shaped shell fragment (4) and the packing lining (8), packing lining (8) is connected between shroud (7) and the lower contact (10), packing lining (8) outside is provided with one group of black box (9), the lower end closed of lower contact (10), lower contact (10) is provided with bypass flow channel hole (1); Described blocking portion is a cylindrical inserted link (5), and the position in corresponding bypass flow channel hole, inserted link (5) lower end (1) is provided with a seal section, and the sealing section is fixing by the terminal inserted link cap (13) of inserted link (5).
2. a kind of blanking plug according to claim 1 is characterized in that: between the parts of described lock portion with the mode socket of screw thread.
3. a kind of blanking plug according to claim 1 is characterized in that: described seal section adds that by two groups of black boies (9) the metal spacer ring (12) in the middle of the black box (9) forms.
4. a kind of blanking plug according to claim 1 is characterized in that: described black box (9) is combined by V-type rubber packing and metal collar.
5. a kind of blanking plug according to claim 1 is characterized in that: the socket place in packing lining (8) and lower contact (10) is provided with a sealing ring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200832591U CN201334890Y (en) | 2009-01-06 | 2009-01-06 | Blanking plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200832591U CN201334890Y (en) | 2009-01-06 | 2009-01-06 | Blanking plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201334890Y true CN201334890Y (en) | 2009-10-28 |
Family
ID=41286540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200832591U Expired - Lifetime CN201334890Y (en) | 2009-01-06 | 2009-01-06 | Blanking plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201334890Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206187A (en) * | 2013-04-22 | 2013-07-17 | 中国海洋石油总公司 | Blanking plug for sand prevention |
| CN107304658A (en) * | 2016-04-22 | 2017-10-31 | 中国石油化工股份有限公司 | A kind of penetration type plugging device |
| CN110118264A (en) * | 2019-05-14 | 2019-08-13 | 苏州博雷特流体控制有限公司 | A method of the high-performance expansion sluice valve with back seal function and replacement filler |
-
2009
- 2009-01-06 CN CNU2009200832591U patent/CN201334890Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206187A (en) * | 2013-04-22 | 2013-07-17 | 中国海洋石油总公司 | Blanking plug for sand prevention |
| CN103206187B (en) * | 2013-04-22 | 2015-10-21 | 中国海洋石油总公司 | Sand control blanking plug |
| CN107304658A (en) * | 2016-04-22 | 2017-10-31 | 中国石油化工股份有限公司 | A kind of penetration type plugging device |
| CN110118264A (en) * | 2019-05-14 | 2019-08-13 | 苏州博雷特流体控制有限公司 | A method of the high-performance expansion sluice valve with back seal function and replacement filler |
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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 |
Granted publication date: 20091028 |
|
| CX01 | Expiry of patent term |