CN201546655U - Double-stage sealer - Google Patents
Double-stage sealer Download PDFInfo
- Publication number
- CN201546655U CN201546655U CN2009202470754U CN200920247075U CN201546655U CN 201546655 U CN201546655 U CN 201546655U CN 2009202470754 U CN2009202470754 U CN 2009202470754U CN 200920247075 U CN200920247075 U CN 200920247075U CN 201546655 U CN201546655 U CN 201546655U
- Authority
- CN
- China
- Prior art keywords
- packing
- cup
- sealing
- elastic body
- filler cup
- 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 claims abstract description 64
- 210000004907 gland Anatomy 0.000 claims abstract description 11
- 239000000945 filler Substances 0.000 claims description 28
- 238000007789 sealing Methods 0.000 abstract description 21
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 abstract description 2
- 230000001174 ascending effect Effects 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 101150038956 cup-4 gene Proteins 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model relates to a two-stage sealer; the packing device consists of a cone, a gland, a packing cup, a packing, an elastic body, a cylinder, a supporting sheet and a sealing ring; sequentially installing a support sheet, a first packing cup, an elastic body, a second packing cup and a cone into a barrel to form a combined body with a through hole in the middle, installing a sealing ring in an annular groove of the packing cup, connecting the barrel and a gland screw thread to be compressed, and arranging a pressure relief hole on the barrel at the elastic body; the inner cavities of the first packing cup and the second packing cup are frustum-shaped, the first packing and the second packing are frustum-shaped, and the first packing and the second packing are respectively embedded into the first packing cup and the second packing cup; the utility model is characterized in that the double-stage sealing, the automatic sealing of the ascending packing of the steel wire rope or the polished rod and the good sealing performance are realized; the downward packing of the steel wire rope or the polished rod is automatically loosened, so that the packing abrasion is reduced; the sealing device can be widely applied to well mouth sealing during oil extraction, well drilling or well workover and bailing.
Description
Technical field
The utility model relates to oil recovery, drilling well and well workover field, specifically a kind of twin-stage sealer that is used for wellhead polish rod or wire rope sealing.
Background technology
The sealer normally single-stage packing_seal or single-stage packing and the rubber flashboard combined labyrinth and carbon gland device that are used for the sealing of production wellhead polished rod or wire rope at present.No matter this sealer in use polished rod or wire rope is up stroke or down stroke, and the frictional force between packing and polished rod or the wire rope is all very big, and to the quick abrasion of packing, sealing effectiveness is undesirable, changes frequent.Particularly higher or that back pressure is higher is aboveground at borehole pressure, leakage is serious and can't reclaim the leakage thing, and is bigger to the pollution of production environment.
The utility model content
The purpose of this utility model aims to provide a kind of twin-stage sealer to polished rod or wire rope.
Twin-stage sealer described in the utility model is made up of cone, gland, filler cup, packing, elastic body, cylindrical shell, support chip and joint ring; Support chip, first packing, the first filler cup, elastic body, second packing, the second filler cup and cone are packed in the cylindrical shell successively, form the combination that the centre is a through hole, joint ring is contained in the filler cup cannelure, cylindrical shell and gland screwed connection compress, and establish a relief hole on the cylindrical shell at elastic body place; The first filler cup and the second filler cup inner chamber are frustum type, and first packing and second packing are frustum type, and first packing and second packing embed respectively in the first filler cup and the second filler cup.
The twin-stage sealer is enclosed within on the wire rope, when the wire rope down stroke, under elastomeric effect, the support chip self-return, second packing and first packing unclamp, and produce the gap between second packing and first packing and wire rope or the polished rod, reduce second packing and first packing and steel rope abrasion.
When the wire rope up stroke, under the effect of frictional force between second packing and first packing and the wire rope, first packing and second packing are compressed automatically by the conical surface between second packing and first packing and the filler cup, realize sealing relatively; When liquid arrived well head and acts on the support chip, under the effect of hydraulic pressure, support chip was up, promotes first packing, the first filler cup compresses elastomeric, further promotes second packing, and second packing and first packing are compressed automatically, realized the twin-stage sealing; When borehole pressure is very big, first order sealing can seal up the liquid of exhausted major part, after sealing through the first order, partially liq enters in the space between elastic body and the cylindrical shell, relief hole on cylindrical shell enters in the container of appointment, pressure is released, thereby guaranteeing that the second level is sealed in only bears less fluid pressure under the bigger sealing force, thereby guarantees sealing effectiveness.
The beneficial effect of advantage of the present utility model and generation is:
1, under the effect of borehole pressure or back pressure, it is up that fluid promotes support chip, compresses the twin-stage packing automatically, and pressure is big more, and thrust is strong more, seal tight more, thereby can solve sealing problem well;
2, when at down stroke, under elastomeric effect, the support chip self-return, packing unclamps, and has reduced the friction of polished rod or wire rope, and the wear extent of packing is reduced;
3, on cylindrical shell, designed a relief hole, when borehole pressure is very big, first order sealing can seal up the liquid of exhausted major part, after sealing through the first order, partially liq enters in the space between elastic body and the cylindrical shell, enter in the container of appointment through relief hole, pressure is released, thereby guaranteeing that the second level is sealed in only bears less fluid pressure under the bigger sealing force, thereby guarantees sealing effectiveness;
4, consumable accessory is changed conveniently.Consumable accessory of the present utility model is a packing, during replacing, only need gland to be unclamped and take off, and the thread of cylindrical shell bottom and well head unclamped carry, upwards gently disclose from support chip with screwdriver or rod shape thing, all component can be taken out from cylindrical shell, reload cylindrical shell behind the replacing packing and get final product.
Description of drawings
Fig. 1 is a partial sectional view of the present utility model.
Wherein: 1, cone 2, gland 3, the second filler cup 4, second packing 5, elastic body 6, the first filler cup 7, cylindrical shell 8, first packing 9, support chip 10, relief hole 11, joint ring.
The specific embodiment
As shown in Figure 1, twin-stage sealer described in the utility model is made up of cone 1, gland 2, filler cup, packing, elastic body, cylindrical shell, support chip and joint ring; Support chip 9, first packing 8, the first filler cup 6, elastic body 5, second packing 4, the second filler cup 3 and cone 1 are packed in the cylindrical shell 7 successively, form the combination that the centre is a through hole, joint ring 11 is contained in the filler cup cannelure, cylindrical shell and gland 2 screwed connections compress, and establish a relief hole 10 on the cylindrical shell 7 at elastic body 5 places; The first filler cup 6 and the second filler cup, 3 inner chambers are frustum type, and first packing 8 and second packing 4 are frustum type, and first packing 8 and second packing 4 embed respectively in the first filler cup 6 and the second filler cup 3.
Claims (1)
1. a twin-stage sealer is made up of cone, gland, filler cup, packing, elastic body, cylindrical shell, support chip and joint ring; Support chip, first packing, the first filler cup, elastic body, second packing, the second filler cup and cone are packed in the cylindrical shell successively, form the combination that the centre is a through hole, joint ring is contained in the filler cup cannelure, cylindrical shell and gland screwed connection compress, and establish a relief hole on the cylindrical shell at elastic body place; The first filler cup and the second filler cup inner chamber are frustum type, and first packing and second packing are frustum type, and first packing and second packing embed respectively in the first filler cup and the second filler cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202470754U CN201546655U (en) | 2009-11-17 | 2009-11-17 | Double-stage sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202470754U CN201546655U (en) | 2009-11-17 | 2009-11-17 | Double-stage sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546655U true CN201546655U (en) | 2010-08-11 |
Family
ID=42601829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202470754U Expired - Lifetime CN201546655U (en) | 2009-11-17 | 2009-11-17 | Double-stage sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201546655U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708684A (en) * | 2018-05-25 | 2018-10-26 | 淮安市井神钻采机具有限公司 | Do not stop to be drawn from dynamic compensation polished rod sealer |
| CN109113686A (en) * | 2018-10-31 | 2019-01-01 | 中国石油化工股份有限公司华东油气分公司泰州采油厂 | A kind of oil field process units of automatic adjustment |
| CN110107244A (en) * | 2019-04-25 | 2019-08-09 | 朱广海 | A kind of particle filled-in composite bellows packing |
| CN110242239A (en) * | 2019-06-06 | 2019-09-17 | 胡振鹏 | A kind of bipolar sealing device of coal bed gas axial direction self-regulation |
-
2009
- 2009-11-17 CN CN2009202470754U patent/CN201546655U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708684A (en) * | 2018-05-25 | 2018-10-26 | 淮安市井神钻采机具有限公司 | Do not stop to be drawn from dynamic compensation polished rod sealer |
| CN109113686A (en) * | 2018-10-31 | 2019-01-01 | 中国石油化工股份有限公司华东油气分公司泰州采油厂 | A kind of oil field process units of automatic adjustment |
| CN110107244A (en) * | 2019-04-25 | 2019-08-09 | 朱广海 | A kind of particle filled-in composite bellows packing |
| CN110107244B (en) * | 2019-04-25 | 2021-04-27 | 朱广海 | Crushed aggregates fills type combined material bag packing |
| CN110242239A (en) * | 2019-06-06 | 2019-09-17 | 胡振鹏 | A kind of bipolar sealing device of coal bed gas axial direction self-regulation |
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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: 20100811 |