CN205445533U - Long -term sealing device of oil recovery well head - Google Patents
Long -term sealing device of oil recovery well head Download PDFInfo
- Publication number
- CN205445533U CN205445533U CN201620213579.4U CN201620213579U CN205445533U CN 205445533 U CN205445533 U CN 205445533U CN 201620213579 U CN201620213579 U CN 201620213579U CN 205445533 U CN205445533 U CN 205445533U
- Authority
- CN
- China
- Prior art keywords
- torr
- sealing drum
- extruding
- sealing
- ascending pipe
- 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
Abstract
The utility model provides a long -term sealing device of oil recovery well head. The sealed effect of the current seal box of main solution is poor, sealed short problem of cycle. Its characterized in that: end screw thread connection is gone up in sealing drum (1) has gland (4), gland (4) have put the spring in proper order down and (3) are held in the palm in last extrusion, spring and extrusion support (2) have down been put down in proper order in sealing drum (1), lower extrusion support (2) and last extrusion support (3) correspond the face and are ball grooves, extrusion support (2) and last extrusion ask sealing drum (1) the interior notes between (3) to have the rubber granule down, have on sealing drum (1) lateral wall ascending pipe (5), be connected with check valve (6) on ascending pipe (5), be connected with the impregnation valve on check valve (6) outer end ascending pipe (5). The long -term sealing device of oil recovery well head has sealed effectually, the characteristics of sealed cycle length.
Description
Technical field:
This utility model relates to the seal box used by a kind of oil extraction in oil field well head, especially production wellhead long-acting sealing device.
Background technology:
In field of oil field oil extraction, in order to prevent well liquid from leaking from well head, need to install seal box on well head.And existing seal box is poor owing to reasons in structure exists sealing effectiveness, the problem that sealing cycle is short, extend the repair time, increase maintenance cost, affect oil recovery efficiency.
Utility model content:
Poor in order to solve existing seal box sealing effectiveness, that sealing cycle is short problem.This utility model provides a kind of production wellhead long-acting sealing device.This production wellhead long-acting sealing device has good sealing effect, the feature of sealing cycle length.
The technical solution of the utility model is: this production wellhead long-acting sealing device includes sealing drum, lower extruding torr and upper extruding torr.Sealing drum threaded upper ends connects gland, spring and upper extruding torr it is equipped with successively under gland, spring and lower extruding torr it is equipped with successively under sealing drum, lower extruding torr is ball recess with upper extruding torr corresponding surface, it is marked with rubber grain in sealing drum between lower extruding torr and upper extruding torr, having ascending pipe on sealing drum sidewall, ascending pipe connects check valve, and check valve outer end ascending pipe connects injection valve.
This utility model has the advantages that this production wellhead long-acting sealing device has gland owing to using sealing drum threaded upper ends to connect, spring and upper extruding torr it is equipped with successively under gland, spring and lower extruding torr it is equipped with successively on sealing drum, lower extruding torr is ball recess with upper extruding torr corresponding surface, it is marked with rubber grain in sealing drum between lower extruding torr and upper extruding torr, ascending pipe is had on sealing drum sidewall, connecting on ascending pipe and have check valve, check valve outer end ascending pipe connects the structure of injection valve.Utilize lower extruding to hold in the palm and upper extruding torr is pressurizeed to rubber grain, and then improve sealing effectiveness, prolongation sealing cycle, and simple in construction.This production wellhead long-acting sealing device has good sealing effect, the feature of sealing cycle length thus.
Accompanying drawing illustrates:
Accompanying drawing 1 is structural representation of the present utility model.
1-sealing drum in figure, under 2-, extruding torr, 3-extrudes torr, 4-gland, 5-ascending pipe, 6-check valve.
Detailed description of the invention:
The utility model is described in further detail below in conjunction with the accompanying drawings:
As shown in Figure 1, this production wellhead long-acting sealing device includes sealing drum 1, lower extruding torr 2 and upper extruding torr 3.Sealing drum 1 threaded upper ends connects gland 4, gland is equipped with spring and upper extruding torr 3 for 4 times successively, sealing drum is equipped with spring and lower extruding torr 2 for 1 time successively, lower extruding torr 2 is ball recess with upper extruding torr 3 corresponding surfaces, it is marked with rubber grain in sealing drum 1 between lower extruding torr 2 and upper extruding torr 3, having ascending pipe 5 on sealing drum 1 sidewall, ascending pipe 5 connects check valve 6, and check valve 6 outer end ascending pipe 5 connects injection valve.This production wellhead long-acting sealing device is connected on well head by the lower contact under sealing drum 1, in airtight sealing drum 1, rubber grain is injected by the ascending pipe 5 of this production wellhead long-acting sealing device by infusion appliance, in making sealing drum 1, rubber grain bears certain pressure, by rubber grain to polished rod seal, ensure sealing effectiveness, when the pressure drops, by lower extruding torr 2 or upper extruding torr 3 compensation pressure, thus raising sealing effectiveness, extend sealing cycle.
Claims (1)
1. a production wellhead long-acting sealing device, including sealing drum (1), lower extruding torr (2) and upper extruding torr (3), it is characterized in that: sealing drum (1) threaded upper ends connects gland (4), spring and upper extruding torr (3) it is equipped with successively under gland (4), spring and lower extruding torr (2) it is equipped with successively under sealing drum (1), lower extruding torr (2) is ball recess with upper extruding torr (3) corresponding surface, it is marked with rubber grain in sealing drum (1) between lower extruding torr (2) and upper extruding torr (3), ascending pipe (5) is had on sealing drum (1) sidewall, the upper connection of ascending pipe (5) has check valve (6), the upper connection in check valve (6) outer end ascending pipe (5) has injection valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620213579.4U CN205445533U (en) | 2016-03-14 | 2016-03-14 | Long -term sealing device of oil recovery well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620213579.4U CN205445533U (en) | 2016-03-14 | 2016-03-14 | Long -term sealing device of oil recovery well head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205445533U true CN205445533U (en) | 2016-08-10 |
Family
ID=56603674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620213579.4U Expired - Fee Related CN205445533U (en) | 2016-03-14 | 2016-03-14 | Long -term sealing device of oil recovery well head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205445533U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113319094A (en) * | 2021-06-03 | 2021-08-31 | 刘萍 | A prevent leaking device that is used for multi-functional monitoring well of landfill |
| CN113324033A (en) * | 2021-06-03 | 2021-08-31 | 刘萍 | Multifunctional monitoring well mouth plugging device for refuse landfill |
-
2016
- 2016-03-14 CN CN201620213579.4U patent/CN205445533U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113319094A (en) * | 2021-06-03 | 2021-08-31 | 刘萍 | A prevent leaking device that is used for multi-functional monitoring well of landfill |
| CN113324033A (en) * | 2021-06-03 | 2021-08-31 | 刘萍 | Multifunctional monitoring well mouth plugging device for refuse landfill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202560256U (en) | Plug-in type stand column hydraulic control one-way valve | |
| CN204553199U (en) | A kind of plunger pump clack box assembly | |
| CN205445533U (en) | Long -term sealing device of oil recovery well head | |
| CN105089538A (en) | Sealing structure of rod oil producing wellhead polish rod | |
| CN204691721U (en) | A kind of hermetically-sealed construction having bar production wellhead polished rod | |
| CN202531080U (en) | Wellhead sealing hanger | |
| CN203626692U (en) | Automatic backflow type well head sealing device | |
| CN203161152U (en) | Sucker rod self-sealing preventer | |
| CN204782834U (en) | Novel continuous outside of tubes slips connector | |
| CN203743124U (en) | Threaded connection structure for piston | |
| CN204266973U (en) | The linkage of a kind of hydraulic cylinder and well head | |
| CN206545494U (en) | Polished rod lubrication and seal device | |
| CN205743818U (en) | Wellhead blowout preventer | |
| CN204754851U (en) | Wear -resisting packing box of tuningout | |
| CN204327458U (en) | Two fixing antiscale card long plunger type sand-control oil well pump | |
| CN204941896U (en) | A kind of high pressure reciprocating pump fluid end structure | |
| CN203213965U (en) | Anticorrosion and antiabrasion pair of sucker rod | |
| CN204243988U (en) | A kind of outlet box being provided with cable protecting device | |
| CN205638326U (en) | Pumping wellhead toper tile formula fluid core material sealing device | |
| CN204344049U (en) | A kind of submerged electric oil pump well wellhead cable sealing device | |
| CN204116154U (en) | A kind of compression type packer tubling experimental provision | |
| CN204283318U (en) | High temperature high voltage resistant tubing packer | |
| CN203161175U (en) | Downhole vent valve | |
| CN203857036U (en) | Oil seal | |
| CN203716912U (en) | Electric-heating hollow polish rod blowout preventer |
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: 20160810 Termination date: 20170314 |