CN201184161Y - Automatic tight formula rod-pumped well polish rod seals packing box - Google Patents
Automatic tight formula rod-pumped well polish rod seals packing box Download PDFInfo
- Publication number
- CN201184161Y CN201184161Y CNU2008200798613U CN200820079861U CN201184161Y CN 201184161 Y CN201184161 Y CN 201184161Y CN U2008200798613 U CNU2008200798613 U CN U2008200798613U CN 200820079861 U CN200820079861 U CN 200820079861U CN 201184161 Y CN201184161 Y CN 201184161Y
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- China
- Prior art keywords
- packing box
- packing
- box body
- cone shape
- rod
- 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
Links
- 238000012856 packing Methods 0.000 title claims abstract description 113
- 210000004907 gland Anatomy 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 14
- 238000005086 pumping Methods 0.000 abstract description 9
- 239000003129 oil well Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 13
- 239000010779 crude oil Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Sealing Devices (AREA)
Abstract
An automatic tight-attaching polish rod sealing packing box of a pumping well is applied to the technical field of oilfield exploitation. Is characterized in that: the inner cavity of the packing box body is in a cone shape, and the shape of the sealing packing in the inner cavity of the cone shape is in a cone shape. An annular pressing piston is arranged on the upper cavity of the packing box body, and the lower end face of the pressing piston is pressed on the upper part of the sealing packing. And a compression spring is arranged above the sealing packing. The spring is in the gland, and the lower extreme and the packing box body threaded connection of gland. The effect is that can seal the oil well head, and sealing performance is good to reduce the frictional force between sealed packing and the polished rod, prevent the hard wearing and tearing of polished rod. The defects of poor sealing performance and large friction force of the conventional packing box are overcome.
Description
Technical field
The utility model relates to the oilfield exploitation technical field, and particularly the oil well packing box is a kind of formula rod-pumped well polished rod seal packing box that is adjacent to automatically.
Background technology
Packing box is a kind of wellhead equipment of rod-pumped well, is connected with the well head three way cock, and the O-ring seal in the packing box, main effect is the sealing oil pumping polish rod, prevents from that OIH water from leaking outside to cause blowout and pollution.
What the oil field The field was more is common packing box.At present, packing box does not conform to actual polished rod offset, causes packing to wear and tear easily.After packing or packing box are impaired, just need often to change packing, even change packing box.And the oil pumping polish rod deflection causes and packing and packing box friction, uses the oil pumping polish rod lost of life, causes the excessive phenomenon of crude oil to take place equally.This not only causes the waste of crude oil, and also contaminated environment, and replacing packing delays work, time-consuming, effort, also has many unsafe factors.What on-the-spot another application in oil field was more is to add the belt-type packing box, SN-28-50 is arranged, SN-28-50 (partially), four kinds on SN-28-65 (partially) type, carry the mode of lubrication oil secretly and realize sealing by adding belt of oil pumping machine, because its sealing mainly is the extruding by belt, so frictional force is bigger, increased the load of oil pumper, and oil gas can take place when not pressing tightly and unloads leakage in belt.
The utility model content
The purpose of this utility model is: a kind of formula rod-pumped well polished rod seal packing box that is adjacent to automatically is provided, can be applicable to the well head sealing of oil well.Have good seal performance, and reduce the frictional force of packing and polished rod, overcome present packing box poor sealing performance, the deficiency that frictional force is big.
The technical solution adopted in the utility model is: be adjacent to formula rod-pumped well polished rod seal packing box automatically, mainly be made up of gland, spring, clamping piston, packing box body, sealed packing and box cupling.The packing box body box cupling that has been threaded.Box cupling is the connector of packing box and well head threeway, packing box can be connected in the well head threeway with box cupling.The packing box intracoelomic cavity has sealed packing.It is characterized in that: the packing box intracoelomic cavity is a cone shape, and the sealed packing profile in the cone shape inner chamber is a cone shape.At packing box body epicoele an annular clamping piston is arranged, the lower surface of clamping piston is pressed in sealed packing top.In the sealed packing upper end compression spring is arranged.Spring is in gland, and the lower end of gland is threaded with the packing box body.Screwing gland can make length of spring compressed and compress sealed packing.After the sealed packing inner wall abrasion, under the promotion of spring and clamping piston, sealed packing moves downward, and inwardly promotes sealed packing on the cone shape inclined-plane of sealed packing simultaneously, makes sealed packing be adjacent to polished rod.The bottom is transferred at the main friction position of sealed packing, realizes succession of the old by the new.Sealed packing only needs to increase, and does not need to change.
Described packing box intracoelomic cavity is a cone shape, and the tapering of cone shape is between 5～45 °, and the height of cone shape is between 30～150mm.
For oil pumping polish rod can not with packing box body generation hard friction, in the cavity of resorption of packing box body, centering ring is arranged, be connected with at the lower end of packing box body screw thread and set upright ring cowling, set upright ring cowling centering ring be fixed in the cavity of resorption of packing box body.Clamping piston and centering ring all adopt copper product to make, and avoid oil pumping polish rod and packing box body to produce hard grind and wipe.
The beneficial effects of the utility model: the utility model is adjacent to formula rod-pumped well polished rod seal packing box automatically and can seals well mouth of oil well, good seal performance, and the frictional force between reduction sealed packing and the polished rod, and the hard grind of prevention polished rod is decreased.Overcome present packing box poor sealing performance, the deficiency that frictional force is big.
Description of drawings
Fig. 1 is that the utility model is adjacent to formula rod-pumped well polished rod seal packing box structural profile schematic diagram automatically.
Among the figure, 1. polished rod, 2. gland, 3. spring, 4. clamping piston, 5. box body, 6. sealed packing, 7. centering ring is 8. set upright ring cowling, 9. box cupling, the 10. anti-bolt that releases.
The specific embodiment
Embodiment 1: adapting to oil pumping polish rod 1 diameter with one is that 28 millimeters the formula that is adjacent to automatically rod-pumped well polished rod seal packing box is an example, and the utility model is described in further detail.
Consult Fig. 1.Automatically be adjacent to formula rod-pumped well polished rod seal packing box, 58 millimeters of gland 2 internal diameters, 32 millimeters of the bore dias that gland 2 top oil pumping polish rods 1 pass through, 160 millimeters of gland 2 length.30 millimeters of clamping piston 4 internal diameters, 65 millimeters of length.
Be inlaid with centering ring 7 in the cavity of resorption of packing box body 5, it is cylindric that centering ring 7 employing copper products are made, and the internal diameter of centering ring 7 is 30 millimeters.Be connected with at the lower end of packing box body 5 screw thread and set upright ring cowling 8, set upright ring cowling 8 centering ring 7 is fixed in the cavity of resorption of packing box body 5.Setting upright on ring cowling 8 and the packing box body 5 has screw hole, is fixed with the anti-bolt 10 that releases in the screw hole, can prevent to set upright ring cowling 8 and release and come off.
Through trying out, obtain following effect in T85744,85055 aboveground installations:
(1) packing box keeps sealing tight, and the cycle stretch-out that adds packing is more than 8 times.Selected well drives a well between being, the packing replacement cycle of common packing box now used still to keep tight after 2～3 months less than 7 days before.
(2) do not unload under the prerequisite of oil-gas leaking at well head, the thrust of packing has obtained effective control.
(3) realizing that packing only adds does not change.Because this packing box bottom packing is main abrading section, when packing in the box is not enough, only need add new packing, do not need original packing taking-up also can be sealed, packing is used thoroughly, realized that the packing that only adds does not truly change packing.
(4) because made full use of the inner space of rubber gate joint, compare with common packing box, sealing highly reduces 10mm.Because structure is simpler, be easy to processing again, manufacturing cost is lower.
Based on the plurality of advantages of this packing box, can become regeneration product.
Claims (5)
1, a kind of formula rod-pumped well polished rod seal packing box that is adjacent to automatically, mainly by gland (2), spring (3), clamping piston (4), packing box body (5), sealed packing (6) and box cupling (9) are formed, packing box body (5) box cupling (9) that has been threaded, packing box body (5) inner chamber has sealed packing (6), it is characterized in that: packing box body (5) inner chamber is a cone shape, sealed packing in the cone shape inner chamber (6) profile is a cone shape, at packing box body (5) epicoele an annular clamping piston (4) is arranged, the lower surface of clamping piston (4) is pressed in sealed packing (6) top, in sealed packing (6) top compression spring (3) is arranged, spring (3) is in gland (2), and the lower end of gland (2) is threaded with packing box body (5).
2, the formula rod-pumped well polished rod seal packing box that is adjacent to automatically according to claim 1, it is characterized in that: the tapering of described cone shape is between 3～45 °, and the height of cone shape is 30～150mm.
3, the formula rod-pumped well polished rod seal packing box that is adjacent to automatically according to claim 1 and 2, it is characterized in that: centering ring (7) is arranged in the cavity of resorption of packing box body (5), be connected with at the lower end screw thread of packing box body (5) and set upright ring cowling (8), set upright ring cowling (8) centering ring (7) is fixed in the cavity of resorption of packing box body (5).
4, the formula rod-pumped well polished rod seal packing box that is adjacent to automatically according to claim 3, it is characterized in that: clamping piston (4) and centering ring (7) all adopt copper product to make.
5, the formula rod-pumped well polished rod seal packing box that is adjacent to automatically according to claim 3, it is characterized in that: setting upright on ring cowling (8) and the packing box body (5) has screw hole, be fixed with the anti-bolt (10) that releases in the screw hole, can prevent to set upright ring cowling (8) and release and come off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200798613U CN201184161Y (en) | 2008-04-10 | 2008-04-10 | Automatic tight formula rod-pumped well polish rod seals packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200798613U CN201184161Y (en) | 2008-04-10 | 2008-04-10 | Automatic tight formula rod-pumped well polish rod seals packing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201184161Y true CN201184161Y (en) | 2009-01-21 |
Family
ID=40271901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200798613U Expired - Lifetime CN201184161Y (en) | 2008-04-10 | 2008-04-10 | Automatic tight formula rod-pumped well polish rod seals packing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201184161Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305786A (en) * | 2020-04-17 | 2020-06-19 | 濮阳市大通机泵有限公司 | Automatic tight packing polished rod sealer |
| CN112227996A (en) * | 2020-10-14 | 2021-01-15 | 中国石油天然气股份有限公司 | Oil well head polish rod sealing packing box |
| CN114753798A (en) * | 2022-05-16 | 2022-07-15 | 帕特恩(大庆)石油科技有限公司 | Multistage sealing protection device for pneumatic isobaric pumping unit well head |
| CN116717211A (en) * | 2023-08-10 | 2023-09-08 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
| CN117627569A (en) * | 2022-08-27 | 2024-03-01 | 大庆油田有限责任公司 | A kind of well sealing device with follower seat for Christmas tree |
-
2008
- 2008-04-10 CN CNU2008200798613U patent/CN201184161Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305786A (en) * | 2020-04-17 | 2020-06-19 | 濮阳市大通机泵有限公司 | Automatic tight packing polished rod sealer |
| CN112227996A (en) * | 2020-10-14 | 2021-01-15 | 中国石油天然气股份有限公司 | Oil well head polish rod sealing packing box |
| CN114753798A (en) * | 2022-05-16 | 2022-07-15 | 帕特恩(大庆)石油科技有限公司 | Multistage sealing protection device for pneumatic isobaric pumping unit well head |
| CN114753798B (en) * | 2022-05-16 | 2022-10-14 | 帕特恩(大庆)石油科技有限公司 | Multistage sealing protection device for pneumatic isobaric pumping unit well head |
| CN117627569A (en) * | 2022-08-27 | 2024-03-01 | 大庆油田有限责任公司 | A kind of well sealing device with follower seat for Christmas tree |
| CN116717211A (en) * | 2023-08-10 | 2023-09-08 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
| CN116717211B (en) * | 2023-08-10 | 2023-11-28 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
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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: 20090121 |
|
| CX01 | Expiry of patent term |