CN2903353Y - Washing well packer - Google Patents
Washing well packer Download PDFInfo
- Publication number
- CN2903353Y CN2903353Y CN 200620081673 CN200620081673U CN2903353Y CN 2903353 Y CN2903353 Y CN 2903353Y CN 200620081673 CN200620081673 CN 200620081673 CN 200620081673 U CN200620081673 U CN 200620081673U CN 2903353 Y CN2903353 Y CN 2903353Y
- Authority
- CN
- China
- Prior art keywords
- central tube
- seat
- flushing
- well
- packing device
- 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 discloses a well flushing packing device which belongs to the packing device used for well flushing and comprises a central tube, an adjusting ring, a rubber cylinder, a position limiting bag, a cone-shaped bag, a slip, a slip seat, a stabilizing device, a sliding ring and a sliding ring seat successively equipped outside the central tube from the top to the bottom. The upper end of the central tube is fixed with an upper connector and the lower end thereof is a trackway filtering tube whose outer surface is provided with a trackway groove integrated with the central tube. A sliding ring pin clip of the sliding ring is arranged inside the trackway groove and a seat packing shear pin is fixed on the cone-shaped bag and the central tube which is provided with a valve ball inside through a valve seat with valve cover on the top. The packing device is characterized by great effect, convenient well flushing and low flushing expenses without dropping oil well anchor and prevents the problem of the oil pumping inefficiency resulted from the dropping matter when the current packing device is in use.
Description
Technical field
The utility model provides a kind of packing device, especially a kind of packing device of oil well.
Background technology
Along with the continuous continuity of recovering the oil and producing, stratum energy constantly reduces.During well-flushing, well-flushing water can have the effect of " kill-job " to oil reservoir in the case, very easily makes oil reservoir produce water-sensitive, causes the oil reservoir oil pump capacity to reduce.Protective device when therefore, well-flushing having occurred.Well-flushing protective device in the past is made of cylindrical shell and cylindrical shell valve shape rubber outward etc.Poorly sealed after this device is gone into the well, the packing effect is relatively poor, and flushing fluid still can enter the shaft bottom polluted reservoir.Go into the well and the taking-up process in, the part or whole valve shape rubber can be wiped off, fall into the shaft bottom.Cause down-hole smallclothes junk to increase, these junks very easily enter oil well pump, standing valve through the upper and lower part screen casing, cause oil well pump to lose work efficiency.For oil pipe is fixed, also will be lowered to tubing anchor during well-flushing, and the slip insert of tubing anchor only can be grabbed just under high pressure (more than the 8Mpa) and is attached on the oil well casing inwall, this needs a pump tank car team to finish, thereby has increased the well-flushing expense.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of well-flushing packing device, the packing effect during with the raising well-flushing.
The utility model is to realize like this, the well-flushing packing device, it has central tube, outside at central tube is equipped with adjustable ring, packing element, stop collar, taper sheath, slips, slip spider, centralizer, slip ring and slip ring seat from top to bottom successively, the upper end and the top connection of central tube is fixed together, the lower end is and central tube all-in-one-piece track screen casing, track screen casing external surface has rail groove, slip ring pin on the slip ring is stuck in the rail groove, seat envelope shear pin is fixed on taper sheath and the central tube, by valve seat valve ball is installed in the central tube, the valve cover is arranged above the valve seat.
Adopt the well-flushing packing device of said structure, seat is honored as a queen sealing tightly, and packing is effective, and well-flushing is convenient, needn't be lowered to tubing anchor, and the well-flushing expense is low.And avoided the problem of the oil well pump inefficacy that the generation trouble of lost tool in hole causes in the existing packing device use.
Description of drawings
Fig. 1 is the schematic diagram of the I part of the utility model structure.
Fig. 2 is the schematic diagram of the II part of the utility model structure.
Fig. 3 is the schematic diagram of the III part of the utility model structure.
Fig. 4 is the A-A sectional drawing of Fig. 3.
Fig. 5 is the expanded view of the track screen casing in the utility model.
Fig. 6 is the integrally-built schematic diagram of the utility model.
The specific embodiment
The embodiment that provides below in conjunction with accompanying drawing illustrates concrete structure of the present utility model.
As shown in drawings, the well-flushing packing device of the utility model, it has central tube (23), outside at central tube is equipped with adjustable ring (3) from top to bottom successively, packing element (6), stop collar (10), taper sheath (11), slips (13), slip spider (15), centralizer (16), slip ring (19) and slip ring seat (21), the upper end of central tube and top connection (1) are fixed together, the lower end is all-in-one-piece track screen casing (22) with it, track screen casing external surface has rail groove (24), slip ring pin (20) on the slip ring is stuck in the rail groove, seat envelope shear pin (12) is fixed on taper sheath (11) and the central tube (23), by valve seat (9) valve ball (7) is installed in the central tube, valve cover (5) is arranged above the valve seat.
Described top connection (1) is integral with interior logical screen casing (25) shown in Figure 1.Adjustable ring (3) is fixed in the top connection by alignment pin (2).Sealing ring (4) is arranged between adjustable ring and the central tube.Spacer ring (8) is arranged on the packing element.There is garter spring (14) slips (13) outside.Centralizer seat (18), spring (17) are arranged on the centralizer.Also can adopt the centralizer of other structure.The long and short staggered axial distribution of rail groove on the track screen casing, long and short rail groove bottom links to each other by skewed slot.Valve seat, valve ball, valve cover constitute the valve valve.
The installation form of the packing device of the utility model is identical with existing packer.During use, its envelope principle is: when going into the well, the slip ring pin is in the top dead-centre of short rail groove.When this packing device arrives desired location down, slowly transfer tubing string behind the upper lifting pipe post certain altitude again, in the put-on and delegated process, the slip ring pin moves in rail groove, move to the top dead-centre of long rail groove from the top dead-centre of short rail groove, make the outer slips of central tube, centralizer, slip ring sleeve etc. along moving on the central tube.Slips becomes open configuration from contraction state under the effect of taper sheath, be stuck in tightly on the oil well casing inwall.Simultaneously, seat envelope shear pin is cut off under the effect of this packing device top tubing string weight.Top connection, adjustable ring, central tube etc. are descending, and the compression packing element makes its less thick, diameter become big, are stuck on the oil well casing inwall, and sleeve pipe is become upper and lower two not connected spaces with annular space packing between the tubing string.
During well-flushing, flushing fluid enters the annular space of top.At this moment, the valve ball in the central tube is stuck on the valve seat, makes valve seat dead.Flushing fluid can not enter the annular space of below, but discharges pit shaft through the interior logical screen casing oil oil well pump on top, thereby plays the protective effect to oil reservoir.
During deblocking, the upper lifting pipe post, top connection, adjustable ring, central tube are up together, and centralizers etc. are descending, and the slip ring pin moves to the rail groove bottom dead centre, and taper sheath separates with slips, and slips shrinks under the effect of garter spring.Packing element no longer by compression, under self flexible effect, the shape when returning to original seat envelope is finished deblocking.
Claims (1)
1, the well-flushing packing device, it is characterized in that, it has central tube (23), outside at central tube is equipped with adjustable ring (3) from top to bottom successively, packing element (6), stop collar (10), taper sheath (11), slips (13), slip spider (15), centralizer (16), slip ring (19) and slip ring seat (21), the upper end of central tube and top connection (1) are fixed together, the lower end is and central tube all-in-one-piece track screen casing (22), track screen casing external surface has rail groove (24), slip ring pin (20) on the slip ring is stuck in the rail groove, seat envelope shear pin (12) is fixed on taper sheath (11) and the central tube (23), by valve seat (9) valve ball (7) is installed in the central tube, valve cover (5) is arranged above the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620081673 CN2903353Y (en) | 2006-03-06 | 2006-03-06 | Washing well packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620081673 CN2903353Y (en) | 2006-03-06 | 2006-03-06 | Washing well packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2903353Y true CN2903353Y (en) | 2007-05-23 |
Family
ID=38078761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620081673 Expired - Fee Related CN2903353Y (en) | 2006-03-06 | 2006-03-06 | Washing well packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2903353Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541690A (en) * | 2013-11-14 | 2014-01-29 | 华鼎鸿基石油工程技术(北京)有限公司 | Pigging and skiving device |
| CN106761536A (en) * | 2016-12-10 | 2017-05-31 | 牡丹江市金环石化设备有限公司 | A kind of pumpingh well downhole hardware |
| CN107143303A (en) * | 2017-07-12 | 2017-09-08 | 天津大港油田石油工程研究院钻采技术开发有限公司 | A kind of packer and its application method |
| CN115306343A (en) * | 2022-08-25 | 2022-11-08 | 西安荣达石油工程有限公司 | Vertical pipe flow double sealer |
-
2006
- 2006-03-06 CN CN 200620081673 patent/CN2903353Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541690A (en) * | 2013-11-14 | 2014-01-29 | 华鼎鸿基石油工程技术(北京)有限公司 | Pigging and skiving device |
| CN103541690B (en) * | 2013-11-14 | 2017-01-11 | 华鼎鸿基石油工程技术(北京)有限公司 | Pigging and skiving device |
| CN106761536A (en) * | 2016-12-10 | 2017-05-31 | 牡丹江市金环石化设备有限公司 | A kind of pumpingh well downhole hardware |
| CN106761536B (en) * | 2016-12-10 | 2018-10-23 | 牡丹江市金环石化设备有限公司 | A kind of pumpingh well downhole hardware |
| CN107143303A (en) * | 2017-07-12 | 2017-09-08 | 天津大港油田石油工程研究院钻采技术开发有限公司 | A kind of packer and its application method |
| CN115306343A (en) * | 2022-08-25 | 2022-11-08 | 西安荣达石油工程有限公司 | Vertical pipe flow double sealer |
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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: 20070523 |