CN202954771U - Injection-production integrated unthreaded rod sealer - Google Patents
Injection-production integrated unthreaded rod sealer Download PDFInfo
- Publication number
- CN202954771U CN202954771U CN 201220655988 CN201220655988U CN202954771U CN 202954771 U CN202954771 U CN 202954771U CN 201220655988 CN201220655988 CN 201220655988 CN 201220655988 U CN201220655988 U CN 201220655988U CN 202954771 U CN202954771 U CN 202954771U
- Authority
- CN
- China
- Prior art keywords
- sealer
- steam injection
- common oil
- optical rod
- unthreaded 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
Images
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model provides an injection-production integrated unthreaded rod sealer. The injection-production integrated unthreaded rod sealer comprises a common oil well unthreaded rod sealer and a steam injection sealer, wherein the steam injection sealer is arranged at the lower part of the common oil well unthreaded rod sealer, and the common oil well unthreaded rod sealer and the steam injection sealer are in tight coupling. During steam injection, the steam injection sealer independently works and is used for carrying out static sealing on an unthreaded rod; and during oil production, the common oil well unthreaded rod sealer and the steam injection sealer are connected, the common oil well unthreaded rod sealer is mainly used for carrying out dynamic sealing on the unthreaded rod. The injection-production integrated unthreaded rod sealer is capable of effectively reducing operating cost and is simple and reliable in structure and low in cost.
Description
Affiliated technical field
The utility model relates to a kind of well recovery wellhead assembly, particularly relates to a kind of wellhead polish rod sealer.
Background technology
In the exploitation of heavy crude reservoir, method commonly used is to inject high temperature and high pressure steam to be exploited, be generally first to carry out steam injection, then change flow string produced, complete in two steps, the method operating cost is higher, it is also longer to account for the well time, and steam injection, oil recovery integral process have then been arranged, and shares one-trip string, operation once, has reduced operating cost and has accounted for the well time.Simultaneously, supporting wellhead assembly also needs to be complementary with it, polished rod sealer, the a kind of of wellhead assembly, the normal optical rod sealer, Applicable temperature is lower, during due to steam injection, wellhead temperature is higher, thereby the polished rod seal can only be for well recovery the time, the polished rod seal in the time of can not be for steam injection.
Summary of the invention
The utility model provides a kind of polished rod sealer, the polished rod static seal in the time of can be for steam injection, and while also can be used for recovering the oil, the polished rod movable sealing, adopt integral process applicable to notes.
The utility model solves the technical scheme that its technical problem adopts: set up a steam injection sealer in common oil-well optical rod sealing apparatus bottom, two parts are tightly connected.During steam injection, the steam injection sealer works independently, and polished rod is carried out to static seal; During oil recovery, two parts are coupled together, mainly by common oil-well optical rod sealing apparatus, polished rod is carried out to movable sealing.Described steam injection sealer is comprised of annular seal space, pressure cap and steam injection packing etc., and the steam injection packing is loaded in annular seal space, and pressure cap is connected by screw thread with annular seal space.
Preferably, the type of attachment of described steam injection sealer and the common oil-well optical rod sealing apparatus in top is that tapered thread, clip or regular screw threads add sealing ring, certainly, after also can adopting steam injection to complete, the mode that two parts are welded as a whole.
The beneficial effects of the utility model are: during steam injection, the steam injection sealer that Applicable temperature is higher is in running order, polished rod is carried out to static seal, and the lower normal optical rod sealer of Applicable temperature is fixed on eminence, away from well head, the impact of high-temperature steam while not being subject to steam injection; When steam injection completes, then the normal optical rod sealer is transferred and couple together with the steam injection sealer, polished rod is carried out to movable sealing.These notes are adopted the integrated optical rod sealer, can effectively reduce operating cost, and simple in structure, reliable, and cost is low.
The accompanying drawing explanation
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Fig. 1 is the structural representation of the utility model one embodiment;
Fig. 2 is the steam injection sealer structural representation of embodiment in Fig. 1;
Fig. 3 installs and uses schematic diagram during the embodiment steam injection in Fig. 1;
Fig. 4 is the schematic diagram of installing and using when in Fig. 1, embodiment recovers the oil.
1. common oil-well optical rod sealing apparatus in figure, 2. steam injection sealer, 3. pressure cap, 4. annular seal space, 5. steam injection packing, 6. polished rod, 7. well head.
The specific embodiment
Referring to Fig. 1, the present embodiment is comprised of common oil-well optical rod sealing apparatus 1 and steam injection sealer 2 two parts, and common oil-well optical rod sealing apparatus 1 is on top, and steam injection sealer 2 is in bottom, and two parts are tightly connected by the taper tubing round thread.
The structural representation of the steam injection sealer 2 that Fig. 2 is the present embodiment, it is comprised of pressure cap 3, annular seal space 4 and steam injection packing 5: pressure cap 3 cars have external screw thread; Annular seal space 4 is hollow tubular, and the cylindrical lower end is the hoop pattern, and there is oil tube external thread upper end, and the inner circle lower end has endoporus to be greater than the Glan of polished rod diameter dimension, and there is internal thread upper end; Steam injection packing 5 is the graphite packing.Steam injection packing 5 is loaded in annular seal space 4, and pressure cap 3 is connected with annular seal space 4 upper internal threaded, screws pressure cap 3 and can compress steam injection packing 5.
When being the present embodiment steam injection, Fig. 3 installs and uses schematic diagram.After all tubing strings have been gone into the well, these notes are adopted to the integrated optical rod sealer and be sleeved on polished rod 6, and be tightly connected with well head 7; Before steam injection, common oil-well optical rod sealing apparatus 1 is taken apart with steam injection sealer 2, and common oil-well optical rod sealing apparatus 1 is raised to a segment distance, be fixed on polished rod 6; Steam injection sealer 2 has been added to steam injection packing 5, pressure cap 3 has been installed and is fully screwed to compress steam injection packing 5, got final product afterwards steam injection.Before steam injection completes, common oil-well optical rod sealing apparatus 1 is fixed on eminence always.
Fig. 4 is that the present embodiment is installed and used schematic diagram while recovering the oil.When steam injection completes, before driving a well, common oil-well optical rod sealing apparatus 1 is transferred, and reconnect with steam injection sealer 2, added the oil recovery packing, opening well and making production gets final product.
Above notes provided by the utility model are adopted to the integrated optical rod sealer, be described in detail, applied specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model simultaneously.
Claims (5)
1. notes are adopted the integrated optical rod sealer, common oil-well optical rod sealing apparatus and steam injection sealer, consist of, and it is characterized in that: the steam injection sealer is installed in the bottom of common oil-well optical rod sealing apparatus, and two parts are tightly connected.
2. notes according to claim 1 are adopted the integrated optical rod sealer, it is characterized in that: the steam injection sealer is that tapered thread is connected with the type of attachment of its common oil-well optical rod sealing apparatus in top.
3. notes according to claim 1 are adopted the integrated optical rod sealer, it is characterized in that: the type of attachment of steam injection sealer and its common oil-well optical rod sealing apparatus in top is clamp connection.
4. notes according to claim 1 are adopted the integrated optical rod sealer, it is characterized in that: steam injection sealer and the type of attachment of its common oil-well optical rod sealing apparatus in top are that regular screw threads add sealing ring and are connected.
5. notes according to claim 1 are adopted the integrated optical rod sealer, it is characterized in that: the type of attachment of steam injection sealer and its common oil-well optical rod sealing apparatus in top is welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220655988 CN202954771U (en) | 2012-12-04 | 2012-12-04 | Injection-production integrated unthreaded rod sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220655988 CN202954771U (en) | 2012-12-04 | 2012-12-04 | Injection-production integrated unthreaded rod sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202954771U true CN202954771U (en) | 2013-05-29 |
Family
ID=48460348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220655988 Expired - Lifetime CN202954771U (en) | 2012-12-04 | 2012-12-04 | Injection-production integrated unthreaded rod sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202954771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135262A (en) * | 2021-11-17 | 2022-03-04 | 中国石油天然气股份有限公司 | Underground steam secondary electric heating pipe column and heating method |
-
2012
- 2012-12-04 CN CN 201220655988 patent/CN202954771U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135262A (en) * | 2021-11-17 | 2022-03-04 | 中国石油天然气股份有限公司 | Underground steam secondary electric heating pipe column and heating method |
| CN114135262B (en) * | 2021-11-17 | 2024-05-07 | 中国石油天然气股份有限公司 | Underground steam secondary electric heating pipe column and heating method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202745795U (en) | Hydraulic sealing and de-sealing high-pressure packer | |
| CN203929521U (en) | Packing element sets visual test device | |
| CN201100109Y (en) | Return and complementary connector for self sealing card tile bushing | |
| CN103452496B (en) | Integral type of adopting thick oil thermal extraction note automatically switches and produces joint | |
| CN202954771U (en) | Injection-production integrated unthreaded rod sealer | |
| CN202745837U (en) | Natural energy circulation gas lift well completion pipe string | |
| CN201650203U (en) | Double rubber-barrel isolation packer | |
| CN208966249U (en) | A kind of compact coaxial double-pipe injection-production well mouth device | |
| CN201428405Y (en) | Patch device for casing damaged well | |
| CN202731822U (en) | Compensation type thermal recovery casing head | |
| CN203022686U (en) | Removable bridge plug | |
| CN202788720U (en) | Pipe-in-pipe steam injection wellhead device | |
| CN202417327U (en) | Telescopic rotation device for well completion of branch well | |
| CN201802348U (en) | Removable internal oil tube stopper | |
| CN201826793U (en) | Integral double-layer polish rod sealer | |
| CN204060611U (en) | A kind of open hole well squeezes stifled compression long packing element type hydraulic packer | |
| CN104088600A (en) | Gas drainage hole-sealing device | |
| CN204312021U (en) | A kind of washing well hydraulic control annular packer | |
| CN204782834U (en) | Novel continuous outside of tubes slips connector | |
| CN103015935A (en) | Top-down pull rod type expansion pipe structure | |
| CN202673263U (en) | Pressure control water injection well safety valve | |
| CN208966256U (en) | Packer (CN) | |
| CN203452727U (en) | Integrated injection and extraction well head device | |
| CN206625815U (en) | A kind of anti-leak thermal extraction casing head | |
| CN201747289U (en) | Device for protecting sucker rod from eccentric wear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130529 |
|
| CX01 | Expiry of patent term |