CN202391375U - Self-pressurizing self-lubricating offset-regulating sealing device for polish rod - Google Patents
Self-pressurizing self-lubricating offset-regulating sealing device for polish rod Download PDFInfo
- Publication number
- CN202391375U CN202391375U CN2011204924119U CN201120492411U CN202391375U CN 202391375 U CN202391375 U CN 202391375U CN 2011204924119 U CN2011204924119 U CN 2011204924119U CN 201120492411 U CN201120492411 U CN 201120492411U CN 202391375 U CN202391375 U CN 202391375U
- Authority
- CN
- China
- Prior art keywords
- self
- lubricating
- packing
- polish rod
- aligning cover
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 12
- 238000012856 packing Methods 0.000 claims abstract description 49
- 210000004907 gland Anatomy 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 abstract 3
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 15
- 238000009434 installation Methods 0.000 description 4
- 241001023788 Cyttus traversi Species 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000009837 dry grinding Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Images
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- Sealing Devices (AREA)
Abstract
The utility model relates to a self-pressurizing self-lubricating offset-regulating sealing device for a polish rod, which comprises a lower joint, a combined packing box and a press cap sequentially sleeved on the polish rod. The combined packing box comprises a regulating gland and a ball aligning sleeve, the regulating gland is connected with the lower joint through a thread, an annular ball holder and a press ring are arranged between the lower joint and the regulating gland, the upper end of the ball aligning sleeve is connected with the press cap through a thread, a boss and a clamping ring are arranged inside the ball aligning sleeve, a sealing packing is mounted between the boss and the clamping ring, a pressure compensation spring is mounted between the upper portion of the clamping ring and the press cap, and an oil injection hole communicated with the ball aligning sleeve is arranged on one side of the press cap. The self-pressurizing self-lubricating offset-regulating sealing device for the polish rod capable of realizing self-pressurizing and self-lubricating functions of the packing, and has the advantages of reliable sealing performance, leakage resistance, capability of prolonging the service life of the packing and replacement period and the like.
Description
Technical field
The utility model belongs to oilfield wellhead assembly technical field, specifically is a kind of self-lubricating of pressure certainly tuningout polish rod seal device of suitable oil well mouth polish rod sealing.
Background technology
In known exploitation technology; Be used for the common packing box that adopts of sealing of polished rod, its structure is: in the main body of packing box, the packing that is used to seal oil pumping polish rod is housed; Compressing of packing realized through the pressure cap of pressure ring and gland and outside in packing top; In use there is following problem: ⑴ in this packing box because rod-pumped well hole deviation or well head flow process installation deflection and horse head and well head misalign, and often causes the eccentric wear of packing box, causes well head to take place to leak and runs oily phenomenon; ⑵ packing belongs to wear-out part, uses after 2-3 days, and the oil recovery workman must arrive aboveground executing to be changeed pressure cap and packing is compressed continued downwards open and take out use, runs oily phenomenon otherwise can occur again leaking; ⑶ in the oilfield exploitation later stage, and crude oil water containing is more, and a lot of oil fields are moisture up to more than 90%; This will cause polished rod in reciprocating motion between polished rod and packing no crude oil infiltration lubricated; Often be in the dry grinding state, this will aggravate the packing wearing and tearing again, even the well of seriously dry grinding is changed packing weekly one time; Oil leakage phenomenon also often occurs, be difficult to administer.
The utility model content
The purpose of the utility model provides a kind of well head that can effectively solve and leak to run oily phenomenon, and high lubricating effect, sealing performance are reliable, can prolong the packing self-lubricating of the pressure certainly tuningout polish rod seal device in application life.
The technical scheme that the purpose of realization the utility model is taked is: this device is made up of the lower contact, combined type packing box and the pressure cap that are sleeved on successively on the polished rod; Wherein, the combined type packing box comprises regulates gland and bulb aligning cover, regulates gland and is connected with lower contact through screw thread; Be provided with annular ball seat and pressure ring between lower contact and the adjusting gland; The upper end of bulb aligning cover is connected with pressure cap through screw thread, is provided with boss and trim ring in the bulb aligning cover, between boss and the trim ring sealed packing is housed; The pressure compensation spring is housed between trim ring top and the pressure cap, is provided with the oil filler point that is communicated with bulb aligning cover in a side of pressure cap.
Between said annular ball seat and lower contact and the bulb aligning cover sealing ring is housed all.
The sidepiece of said bulb aligning cover and pressure cap is equipped with 1～4 blind hole that is used for dismounting.
According to the self-lubricating of the pressure certainly tuningout polish rod seal device that such scheme is processed, the beneficial effect that it produced is:
(1) adopts annular ball seat and bulb aligning cover; Make polished rod move 1～12mm at any direction radially; Can tilt 1～15 ° at axial any direction again, thereby the polished rod seal packing eccentric wear that reasons such as hole deviation, well head flow process installation deflection, horse head and well head misalign cause is fundamentally eliminated.
(2) increase by a pressure compensation spring in the upper end of bulb aligning cover, realize pressure energy-storage, after the sealed packing fair wear and tear; Counterbalance spring is through the pressurization automatically that releases energy; Remain the stable pressurization of sealed packing, seal polished rod then, realized that packing is from compression functions.
(3), through oil filler point and lubricating cavity being set on packing top, the lubrication oil of can annotating easily is engraved in when making polished rod and packing in the lubricated motion, has realized self-lubricating function thus, has solved the problem of polished rod and packing quick abrasion.
(4) this device sealing performance is reliable, and easy to leak not, and can prolong the cycle of changing sealed packing reduces downtime, the application life of prolongation packing, and reduced the load of oil pumper greatly, the reduction cost for oil production.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Referring to Fig. 1; Certainly the self-lubricating tuningout polish rod seal device of pressing of the utility model is made up of the lower contact 1, combined type packing box and the pressure cap 11 that are sleeved on successively on the polished rod 7; Wherein, The combined type packing box comprises adjusting gland 4 and bulb aligning cover 6, regulates gland 4 and is connected with lower contact 1 through screw thread, is provided with annular ball seat 3 and pressure ring 5 between lower contact 1 and the adjusting gland 4.The upper end of bulb aligning cover 6 is connected with pressure cap 11 through screw thread, is provided with boss 6-1 and trim ring 9 in the bulb aligning cover 6, between boss 6-1 and the trim ring 9 sealed packing 8 is housed, and between the top of trim ring 9 and the pressure cap 11 pressure compensation spring 10 is housed.Side at pressure cap 11 is provided with the oil filler point 12 that is communicated with bulb aligning cover 6, is used for to sealed packing 8 positions filling lubrication oil.Between said annular ball seat 3 and lower contact 1 and the bulb aligning cover 6 sealing ring 2 is housed all.The sidepiece of said bulb aligning cover 6 and pressure cap 11 is equipped with 1～4 blind hole 13, is used for the dismounting of bulb aligning cover 6 and pressure cap 11.This device adopts annular ball seat 3 and bulb aligning cover 6; Make polished rod 7 move 1～12mm at any direction radially; Can tilt 1～15 ° at axial any direction again, thereby can fundamentally eliminate the polished rod seal packing eccentric wear that reasons such as hole deviation, well head flow process installation deflection, horse head and well head misalign cause.The utility model is provided with oil filler point 12 and lubricating cavity on the top of sealed packing 8; The lubrication oil of can annotating easily makes polished rod 7 and sealed packing 8 all the time in lubricated motion, reduces the friction between itself and the polished rod 7; Prolong the application life and the replacement cycle of sealed packing 8 thus greatly; Reduce downtime, and can reduce the load of oil pumper greatly, reduce the oil recovery energy consumption.Realized self-lubricating function thus, solved the problem of polished rod 7 with sealed packing 8 quick abrasions.Simultaneously, set up pressure compensation spring 10, carried out pressure energy-storage through spring in the upper end of sealed packing 8; Earlier pressure compensation spring 10 is compressed energy storage during installation; Sealed packing 8 in the use continues compression seal packing 8 in case wearing and tearing can release energy through pressure compensation spring 10; Then seal polished rod 7, realized sealed packing 8 from compression functions.That is to say that after sealed packing 8 fair wear and tears pressure compensation spring 10 is pressurization automatically, remains the stable pressurization of sealed packing 8, prevent because of the different too early wearing and tearing that cause sealed packing 8 of manual work pressurization.
Claims (3)
1. press self-lubricating tuningout polish rod seal device certainly for one kind; Lower contact, combined type packing box and pressure cap by being sleeved on successively on the polished rod are formed, and it is characterized in that: the combined type packing box comprises regulates gland and bulb aligning cover, regulates gland and is connected with lower contact through screw thread; Be provided with annular ball seat and pressure ring between lower contact and the adjusting gland; The upper end of bulb aligning cover is connected with pressure cap through screw thread, is provided with boss and trim ring in the bulb aligning cover, between boss and the trim ring sealed packing is housed; The pressure compensation spring is housed between trim ring top and the pressure cap, is provided with the oil filler point that is communicated with bulb aligning cover in a side of pressure cap.
2. according to claim 1 from pressing self-lubricating tuningout polish rod seal device, it is characterized in that: between described annular ball seat and lower contact and the bulb aligning cover sealing ring is housed all.
3. according to claim 1 from pressing self-lubricating tuningout polish rod seal device, it is characterized in that: the sidepiece of said bulb aligning cover and pressure cap is equipped with 1～4 blind hole that is used for dismounting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204924119U CN202391375U (en) | 2011-12-01 | 2011-12-01 | Self-pressurizing self-lubricating offset-regulating sealing device for polish rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204924119U CN202391375U (en) | 2011-12-01 | 2011-12-01 | Self-pressurizing self-lubricating offset-regulating sealing device for polish rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391375U true CN202391375U (en) | 2012-08-22 |
Family
ID=46666306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204924119U Expired - Fee Related CN202391375U (en) | 2011-12-01 | 2011-12-01 | Self-pressurizing self-lubricating offset-regulating sealing device for polish rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202391375U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632120A (en) * | 2014-12-11 | 2015-05-20 | 中国石油天然气股份有限公司 | an elastic gran |
| CN105952409A (en) * | 2016-07-11 | 2016-09-21 | 中国石油化工股份有限公司华东油气分公司泰州采油厂 | Hydraulic wellhead polished rod stuffing box self-tightening device |
| CN105971545A (en) * | 2016-07-14 | 2016-09-28 | 大庆因你美丽机械设备制造有限公司 | Polished rod sealing device special for pumping unit |
| CN107387014A (en) * | 2017-09-14 | 2017-11-24 | 位兆元 | Oil pumper Universal sealed component and application process |
| CN111021980A (en) * | 2020-02-17 | 2020-04-17 | 辽宁华实技术有限公司 | Double-section automatic blowout prevention well mouth sealer |
| CN111119780A (en) * | 2019-12-25 | 2020-05-08 | 刘光明 | Packing box for oil exploitation |
| CN116006115A (en) * | 2021-10-22 | 2023-04-25 | 大庆油田有限责任公司 | Composite extreme deviation adjustment automatic pressurized packing box |
-
2011
- 2011-12-01 CN CN2011204924119U patent/CN202391375U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632120A (en) * | 2014-12-11 | 2015-05-20 | 中国石油天然气股份有限公司 | an elastic gran |
| CN105952409A (en) * | 2016-07-11 | 2016-09-21 | 中国石油化工股份有限公司华东油气分公司泰州采油厂 | Hydraulic wellhead polished rod stuffing box self-tightening device |
| CN105971545A (en) * | 2016-07-14 | 2016-09-28 | 大庆因你美丽机械设备制造有限公司 | Polished rod sealing device special for pumping unit |
| CN105971545B (en) * | 2016-07-14 | 2017-05-17 | 大庆因你美丽机械设备制造有限公司 | Polished rod sealing device special for pumping unit |
| CN107387014A (en) * | 2017-09-14 | 2017-11-24 | 位兆元 | Oil pumper Universal sealed component and application process |
| CN111119780A (en) * | 2019-12-25 | 2020-05-08 | 刘光明 | Packing box for oil exploitation |
| CN111119780B (en) * | 2019-12-25 | 2021-10-29 | 大安鸿源管业有限公司 | Packing box for oil exploitation |
| CN111021980A (en) * | 2020-02-17 | 2020-04-17 | 辽宁华实技术有限公司 | Double-section automatic blowout prevention well mouth sealer |
| CN116006115A (en) * | 2021-10-22 | 2023-04-25 | 大庆油田有限责任公司 | Composite extreme deviation adjustment automatic pressurized packing box |
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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: 20120822 Termination date: 20121201 |