CN203412540U - Polish rod sealer - Google Patents
Polish rod sealer Download PDFInfo
- Publication number
- CN203412540U CN203412540U CN201320461013.XU CN201320461013U CN203412540U CN 203412540 U CN203412540 U CN 203412540U CN 201320461013 U CN201320461013 U CN 201320461013U CN 203412540 U CN203412540 U CN 203412540U
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- China
- Prior art keywords
- polish rod
- temperature
- sealing device
- traceless
- seamless
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Abstract
The utility model discloses a polish rod sealer which comprises a polish rod, a high-temperature and high-pressure resistant telescopic pipe, a high-temperature and high-pressure emergency sealing device and a traceless polish rod clamp, wherein the high-temperature and high-pressure resistant telescopic pipe, the high-temperature and high-pressure emergency sealing device and the traceless polish rod clamp are sleeved on the polish rod; the upper end of the high-temperature and high-pressure resistant telescopic pipe is fixedly connected with the polish rod by holding tightly; the lower end of the high-temperature and high-pressure resistant telescopic pipe is in threaded connection with the high-temperature and high-pressure emergency sealing device; the high-temperature and high-pressure emergency sealing device is in seamless connection with the traceless polish rod clamp; and the lower end of the traceless polish rod clamp is connected with the well mouth by a slip thereof. The polish rod sealer disclosed by the utility model is more reliable than the fastening type sliding seal; the high-temperature and high-pressure emergency seal can temporarily replace telescopic seal so as to facilitate the replacement of the telescopic pipe; when the polish rod is broken, the well mouth can be closed to prevent blowout; the oil well management is facilitated, the traceless polish rod clamp replaces the toothed square clip, and the oil well management measures such as oil well touching pump, anti-scour distance adjustment and stroke adjustment are implemented more conveniently and quickly; and moreover, the efficiency of a pumping unit system is improved, and the up-down stroke friction of a pumping rod is reduced.
Description
Technical field
The utility model relates to oil extraction oil pumper, particularly relates to pumping unit rod sealing device.
Background technology
The fastening-type slipper seal device that the oil-extractor polish-rod of heavy oil wells great majority adopt at present, there is complex structure, complex operation, need the frequent packing of changing, the stop pumping time is long, rate while both affecting oil well production, has increased again labor strength and cost of production, also the weak point such as easy bleed contaminated environment.
Utility model content
The technical problems to be solved in the utility model is, provide a kind of sealingly secure reliable, reduce and safeguard sealer workload, improve oil pumper production efficiency, reduce the Novel wellhead polished rod sealer of maintenance cost.
The technical scheme adopting is:
Polished rod sealer, comprises polished rod, high temperature high voltage resistant telescoping tube, the emergent sealing device of HTHP, seamless polish rod clamp.Described high temperature high voltage resistant telescoping tube, the emergent sealing device of HTHP, seamless polish rod clamp are sleeved on polished rod, high pressure resistant high temperature telescoping tube upper end adopts anchor ear fixing seal mode to be closely fixedly connected with polished rod, the high pressure resistant high temperature telescoping tube lower end emergent sealing device of HTHP that is threaded, the emergent sealing of the HTHP seamless polish rod clamp of seamless link (one), seamless polish rod clamp lower end connects production wellhead with its slips.
Above-mentioned high temperature high voltage resistant telescoping tube, heatproof≤200 ℃, withstand voltage>=2.5MPa, stretching frequency≤6min
-1, under environment temperature-35 ~ 45 ℃, wind speed≤8 grade operating mode, after compression, length is 0.5 ~ 1.0 meter, at least 3 meters of spread lengths.
The emergent sealing device of above-mentioned HTHP, heatproof≤370 ℃, withstand voltage≤14.0Mpa.
The utility model has the advantages that:
1, adopt fixing seal, seal solid and reliable, more reliable with respect to fastening-type slipper seal;
2, sealingly secure is reliable, and the emergent sealing of HTHP can temporarily substitute flexible sealing, is convenient to change high temperature high voltage resistant telescoping tube, during light rod-broken, can seal well head, prevents blowout;
3, facilitate oil well management, seamless polish rod clamp substitutes tooth side's clamp, more convenient while touching the oil well management measures such as pump, adjustment dead space, adjustment stroke at enforcement oil well;
4, improve Analysis of Oil Well System Efficiency, reduce the resistance of sucker rod up-down stroke mill, improve power of motor utilization rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the lateral view of Fig. 1.
The specific embodiment
Polished rod sealer, comprises polished rod 4, high temperature high voltage resistant telescoping tube 1, the emergent sealing device 2 of HTHP, seamless polish rod clamp 3.Described high temperature high voltage resistant telescoping tube 1, the emergent sealing device 2 of HTHP, seamless polish rod clamp 3 are sleeved on polished rod 4, high pressure resistant high temperature telescoping tube 1 upper end is held fixing seal mode tightly with polished rod 4 employings and is closely fixedly connected with, the high pressure resistant high temperature telescoping tube 1 lower end emergent sealing device 2 of HTHP that is threaded, the HTHP seamless polish rod clamp 3 of sealing device 2 lower end seamless link of meeting an urgent need, seamless polish rod clamp 3 lower ends connect production wellhead with its slips.Described high temperature high voltage resistant telescoping tube 1, heatproof reaches 200 ℃, the withstand voltage 2.5MPa that reaches, stretching frequency reaches 6min
-1, under environment temperature-35 ~ 45 ℃, wind speed≤8 grade operating mode, after compression, length is 0.7 meter, 3.2 meters of spread lengths; The HTHP sealing device 2 of meeting an urgent need, heatproof reaches 370 ℃, the withstand voltage 14.0Mpa that reaches.
Operating principle
A is in the oil pumper course of work, polished rod enters in pit shaft and moves up and down through HTHP telescoping tube 1, the emergent sealing device 2 of HTHP, seamless polish rod clamp 3, well head four-way, polished rod 4 moves up and down in process, high temperature high voltage resistant telescoping tube 1 is because upper end is fixed on polished rod 4, therefore its upper end moves up and down with polished rod, high temperature high voltage resistant telescoping tube 1 lower end, the emergent sealing device 2 of HTHP, seamless polish rod clamp 3 are fixedly connected on well head, and these parts do not move.In upstroke, HTHP telescoping tube 1 extends, and the gap that minute quantity liquid is upwards met an urgent need between sealing device 2 by polished rod and well head, seamless polish rod clamp 3, HTHP with polished rod flows into high temperature high voltage resistant telescoping tube 1 inner chamber; In down stroke, HTHP telescoping tube 1 shrinks, in high temperature high voltage resistant telescoping tube 1 inner chamber, liquid is extruded in the gap inflow pit shaft of meeting an urgent need between sealing device 2 by polished rod and well head, seamless polish rod clamp 3, HTHP downwards with polished rod, guarantee that polished rod is in the process of moving up and down, in pit shaft, liquid can not flow out this polished rod sealer.
B is in the oil pumper course of work, and when light rod-broken occurring fall in pit shaft, the effect of HTHP telescoping tube 1 sealing wellhead was lost efficacy, and enables the emergent sealing device 2 of HTHP and in envelope mode entirely, seals well head and prevent that blowout from occurring.
C is according to oil well production situation, and while needing to implement to touch the oil well management measures such as pump, adjustment dead space, adjustment stroke, seamless polish rod clamp 3 blocks polished rod to intermediate closed, is convenient to oil pumping machine unloading.
Claims (1)
1. polished rod sealer, comprise polished rod (4), high temperature high voltage resistant telescoping tube (1), the HTHP sealing device (2) of meeting an urgent need, seamless polish rod clamp (3), it is characterized in that described high temperature high voltage resistant telescoping tube (1), the HTHP sealing device (2) of meeting an urgent need, seamless polish rod clamp (3) is sleeved on polished rod (4), high temperature high voltage resistant telescoping tube (1) upper end is held fixing seal mode tightly with polished rod (4) employing and is closely fixedly connected with, high temperature high voltage resistant telescoping tube (1) the lower end emergent sealing device (2) of HTHP that is threaded, the HTHP seamless polish rod clamp of sealing device (2) lower end seamless link (3) of meeting an urgent need, seamless polish rod clamp (3) lower end connects well head with its slips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320461013.XU CN203412540U (en) | 2013-07-31 | 2013-07-31 | Polish rod sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320461013.XU CN203412540U (en) | 2013-07-31 | 2013-07-31 | Polish rod sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203412540U true CN203412540U (en) | 2014-01-29 |
Family
ID=49975435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320461013.XU Expired - Lifetime CN203412540U (en) | 2013-07-31 | 2013-07-31 | Polish rod sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203412540U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410466A (en) * | 2013-07-31 | 2013-11-27 | 张健 | Polish rod sealer |
| CN106014321A (en) * | 2016-08-05 | 2016-10-12 | 苑海阔 | Polished rod sealing device of retractable rod pumped well |
-
2013
- 2013-07-31 CN CN201320461013.XU patent/CN203412540U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410466A (en) * | 2013-07-31 | 2013-11-27 | 张健 | Polish rod sealer |
| CN106014321A (en) * | 2016-08-05 | 2016-10-12 | 苑海阔 | Polished rod sealing device of retractable rod pumped well |
| CN106014321B (en) * | 2016-08-05 | 2019-03-01 | 苑海阔 | Telescopic polished rod sealing device for rod-pumped well |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |