CN202731817U - Novel lubricating polish rod sealer - Google Patents
Novel lubricating polish rod sealer Download PDFInfo
- Publication number
- CN202731817U CN202731817U CN 201220458528 CN201220458528U CN202731817U CN 202731817 U CN202731817 U CN 202731817U CN 201220458528 CN201220458528 CN 201220458528 CN 201220458528 U CN201220458528 U CN 201220458528U CN 202731817 U CN202731817 U CN 202731817U
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- CN
- China
- Prior art keywords
- oil
- cavity
- wall
- polish rod
- storage container
- 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 novel lubricating polish rod sealer, comprising a polish rod, an oil storage container, a sealing cover, blowout prevention balls and a pressing cap. The novel lubricating polish rod sealer has the technical points that the polish rod is sheathed in the oil storage container and penetrates through the oil storage container; the oil storage container is biconical and is formed by spirally combining an upper oil cavity with a lower oil cavity, the inner wall of the upper oil cavity is provided with an internal screw thread, the outer wall of the lower cavity is provided with an external screw thread, the blowout prevention balls are arranged in the cavities of the oil storage container, and sealing rings are arranged at the top of each cavity; each sealing cover comprises an upper sealing gland and a lower sealing gland, the top of each cavity is sealed with the upper sealing gland by virtue of the pressing cap; and the bottom of each cavity of the oil storage container is provided with the lower sealing cover. The novel lubricating polish rod sealer provided by the utility model has the advantages that structural design with the blowout prevention balls is adopted, safety in an oil pumping operation can be guaranteed even if the polish rod is broken down; service life of a sealing rubber block is prolonged, replacement frequency is reduced, and system efficiency is improved; abrasion of the sealing rubber block is reduced, and service life of packing is prolonged; and structure is simple, operation is easy and simple, and manufacturing cost is reduced.
Description
Technical field
The utility model relates to a kind of wellhead equipment, further relates to a kind of wellhead equipment that is contained in rod-pumped well, and it mainly is applicable to lubricated polished rod, sealing, blowout prevention, minimizing packing replacing number of times, prolongs seal durability.
Background technology
Development along with the oil field, the equipment of rod-pumped well makes rapid progress, but packing box prevents unique device of well head leakage of oil all the time as sealing wellhead, the quality of its sealing effectiveness is directly connected to the safety of oil pumper and normally moves, and sealing effectiveness is bad in addition also can cause the wasting of resources to be unfavorable for environmental protection.The Main Ingredients and Appearance of packing is rubber, under specific working environment, as: oil is thick, water content is high, negative benefit well etc. goes out, mixes oil, can not guarantee safely and effectively sealing between polished rod and rubber packing, cause packing shortening in application life, sometimes even cause polished rod fracture, cause serious pollution, reduced system effectiveness.
The multifunctional lubricating polished rod sealer of prior art is mainly connected to form by preventer sealing ring, spray-proof ball, preventer seat, auxiliary seal blob of viscose, sealer loam cake, biconial sealed gluing block, sealer main body, plug, tuningout ball, tuningout ball gland, tuningout seat, expansion link, secondary seal blob of viscose, sealing ring, regulating shaft sealing ring, tuningout ball sealing ring.To lubricate polished rod sealer and be installed on the production tree, spray-proof ball and preventer seat form spraying-preventing system, prevent the polished rod fracture drop into oil pipe after crude oil in oil pipe pollute because of the overpressure ejection; The sealer main body is used for the annular space between sealing oil pipe and the polished rod; The angle of tuningout ball and tuningout seat combined adjustable sealer reaches the purpose that makes the airtight and watertight padding even wearing with the position that adapts to polished rod.But, occur high moisture or when going out phenomenon, lubricating grease be can not get the grease lubrication of capacity by a large amount of polished rods, cause the sealed gluing block serious wear, causes the well head leakage of oil at oil well.
Summary of the invention
The purpose of this utility model is to provide a kind of new type of rod sealing unit, comprises polished rod, oil vessel, seal cover, spray-proof ball, pressure cap, it is characterized in that: described polished rod is nested with in oil vessel, and runs through oil vessel; Described oil vessel is biconial, and it is screwed togather by upper oil chamber and bottom oil pocket and forms, and the inwall of upper oil chamber arranges internal thread, and bottom oil pocket outer wall arranges external screw thread, in the oil vessel cavity spray-proof ball is set, and the cavity top arranges joint ring; Described seal cover comprises top seal gland and lower seal gland, and the cavity top is by pressure cap and top seal gland seal; The oil vessel cavity bottom arranges the lower seal lid.
Also be provided with upper handle on the outer wall of the pressure cap of technique scheme, be provided with lower handle at the outer wall of upper oil chamber.
On the outer wall of the upper oil chamber of technique scheme steam vent is set, on the outer wall of bottom oil pocket tank filler sleeve is set.
Also be provided with upper handle on the outer wall of technique scheme pressure cap, be provided with lower handle at the outer wall of upper oil chamber.
The beneficial effects of the utility model are as follows: even with the fracture of the structure design polished rod of spray-proof ball, and the safety in the operation of also guaranteeing to pump; Prolong the application life of sealed gluing block, reduced the replacing number of times, improved system effectiveness; Between oil well, go out or moisture superelevation in, lubricated polished rod reduces the wearing and tearing of sealed gluing block, prolongs packing application life; Lubricating coupler is made of trapped fuel container and spray-proof ball, and is simple in structure, easy and simple to handle, reduced manufacturing cost.
Description of drawings
Fig. 1 is vertical section of the present utility model constructional drawing.
The symbol description of accompanying drawing major part:
1. pressure cap; 2. lower seal gland; 3. joint ring; 4. steam vent; 5. upper oil chamber; 6. spray-proof ball; 7. tank filler sleeve; 8. bottom oil pocket; 9. upper handle; 10. lower handle; 11. lower seal gland; 12. expansion link; 13 sealed gluing blocks; 14. universal joint; 15. secondary packing body; 16. slips connector; 17. polished rod.
The utility model is described in further detail by example below in conjunction with accompanying drawing; but following example only is the utility model example wherein; do not represent the rights protection scope that the utility model limits, rights protection scope of the present utility model is as the criterion with claims.
The specific embodiment
As shown in Figure 1, the utility model provides a kind of new type of rod sealing unit, the sealing device is fixed on the packing body, polished rod 17 is applied in the sealer, and oil vessel is biconial, is screwed togather by upper oil chamber 5 and bottom oil pocket 8 to form, and the upper oil chamber bore is greater than bottom oil pocket bore, lower handle 10 is set on the outer wall of upper oil chamber, steam vent 4 also is set on the outer wall of upper oil chamber 5, tank filler sleeve 7 is set on the outer wall of bottom oil pocket 8; Spray-proof ball 6 is set in the oil vessel cavity, in the cavity of oil vessel top joint ring 3 is set; The oil vessel top arranges upper handle 9 by pressure cap 1 and 2 sealings of top seal gland on gland 2 outer walls; The utility model and bottom secondary packing body 15 are screwed together, and by 11 sealings of lower seal gland, secondary packing body 15 interior sealed gluing block 13 and the expansion links 12 of arranging; Secondary packing body 15 bottoms and oil pumper slips connector are fixed, and be outside with universal joint 14 reinforcings.
After installing polished rod sealer; the trapped fuel container is full of special grease; when polished rod 17 pumps in oil vessel; spray-proof ball 6 constantly rotates under the effect of frictional force; lubricating grease around adhesion, the drive; a certain amount of lubricating grease is sticked in polished rod 17 surfaces; polished rod 17 is by sealed gluing block 13, top seal gland 3, lower seal gland 11 time; the lubricating grease of polished rod 17 surperficial adhesions can form the anti-aging tempered oil film of thin layer between sealed gluing block 13 and polished rod, and plays lubricated and prolong the sealed gluing block effect in application life.
Even because stress causes polished rod break to split, the spray-proof ball in the oil vessel also can in time be blocked under pressure, prevents blowout.
Claims (4)
1. a new type of rod sealing unit comprises polished rod, oil vessel, seal cover, spray-proof ball, pressure cap, it is characterized in that: described polished rod is nested with in oil vessel, and runs through oil vessel; Described oil vessel is biconial, and it is screwed togather by upper oil chamber and bottom oil pocket and forms, and the inwall of upper oil chamber arranges internal thread, and bottom oil pocket outer wall arranges external screw thread, in the oil vessel cavity spray-proof ball is set, and the cavity top arranges joint ring; Described seal cover comprises top seal gland and lower seal gland, and the cavity top is by pressure cap and top seal gland seal; The oil vessel cavity bottom arranges the lower seal lid.
2. new type of rod sealing unit according to claim 1 is characterized in that: also be provided with upper handle on the outer wall of pressure cap, be provided with lower handle at the outer wall of upper oil chamber.
3. new type of rod sealing unit according to claim 1 is characterized in that: on the outer wall of described upper oil chamber steam vent is set, on the outer wall of bottom oil pocket tank filler sleeve is set.
4. new type of rod sealing unit according to claim 3 is characterized in that: also be provided with upper handle on the outer wall of pressure cap, be provided with lower handle at the outer wall of upper oil chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458528 CN202731817U (en) | 2012-09-11 | 2012-09-11 | Novel lubricating polish rod sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458528 CN202731817U (en) | 2012-09-11 | 2012-09-11 | Novel lubricating polish rod sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202731817U true CN202731817U (en) | 2013-02-13 |
Family
ID=47657529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220458528 Expired - Fee Related CN202731817U (en) | 2012-09-11 | 2012-09-11 | Novel lubricating polish rod sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202731817U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018018142A1 (en) * | 2016-07-26 | 2018-02-01 | Western Oiltools Ltd. | Method and apparatus for production well pressure containment for blowout protection |
| CN109209278A (en) * | 2018-10-22 | 2019-01-15 | 青岛新胜石油机械有限公司 | Wellhead sealing device and pumping unit |
| US10597968B2 (en) | 2015-07-09 | 2020-03-24 | Dreco Energy Services Ulc | Modified stuffing box |
| US10920887B2 (en) | 2016-02-10 | 2021-02-16 | Dreco Energy Services Ulc | Anti-extrusion seal arrangement and ram-style blowout preventer |
| US10941628B2 (en) | 2017-09-25 | 2021-03-09 | Dreco Energy Services Ulc | Adjustable blowout preventer and methods of use |
| US11035198B2 (en) | 2017-01-16 | 2021-06-15 | Dreco Energy Services Ulc | Multifunction blowout preventer |
-
2012
- 2012-09-11 CN CN 201220458528 patent/CN202731817U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10597968B2 (en) | 2015-07-09 | 2020-03-24 | Dreco Energy Services Ulc | Modified stuffing box |
| US10920887B2 (en) | 2016-02-10 | 2021-02-16 | Dreco Energy Services Ulc | Anti-extrusion seal arrangement and ram-style blowout preventer |
| WO2018018142A1 (en) * | 2016-07-26 | 2018-02-01 | Western Oiltools Ltd. | Method and apparatus for production well pressure containment for blowout protection |
| US10900313B2 (en) | 2016-07-26 | 2021-01-26 | Dreco Energy Services Ulc | Method and apparatus for production well pressure containment for blowout |
| US11035198B2 (en) | 2017-01-16 | 2021-06-15 | Dreco Energy Services Ulc | Multifunction blowout preventer |
| US10941628B2 (en) | 2017-09-25 | 2021-03-09 | Dreco Energy Services Ulc | Adjustable blowout preventer and methods of use |
| CN109209278A (en) * | 2018-10-22 | 2019-01-15 | 青岛新胜石油机械有限公司 | Wellhead sealing device and pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20180911 |