CN205532529U - Piston control formula is prevented returning and is told eccentric injection mandrel - Google Patents
Piston control formula is prevented returning and is told eccentric injection mandrel Download PDFInfo
- Publication number
- CN205532529U CN205532529U CN201620095496.XU CN201620095496U CN205532529U CN 205532529 U CN205532529 U CN 205532529U CN 201620095496 U CN201620095496 U CN 201620095496U CN 205532529 U CN205532529 U CN 205532529U
- Authority
- CN
- China
- Prior art keywords
- piston
- joint sleeve
- returning
- main body
- apopore
- 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
Landscapes
- Nozzles (AREA)
Abstract
The utility model discloses a piston control formula is prevented returning and is told eccentric injection mandrel, including main part, piston etc, inclined to one side hole of blanking plug of main part inner chamber design, main part inner chamber and the design of the eccentric formula of the inclined to one side hole of blanking plug adoption, the apopore has been seted up in the main part, main part outside cover has piston and spring for control opening and closing of above -mentioned apopore. Upward adapter sleeve is connected to the main part upper end, adapter sleeve under the lower extreme is connected, going up the adapter sleeve upper end and connecting the top connection, the lower clutch is connected to lower adapter sleeve lower extreme. The utility model discloses realize that the water injection well is stopping annotating, is closing sealed apopore during the backwash well, prevent that stratum sand, polymer from returning to tell to get into inside water injection mandrel or the tubular column.
Description
Technical field
The utility model relates to anti-the returning of separated-zone water infection oil field development technique, specifically piston controlled type and tells eccentric center water-distributing
Device.
Background technology
In oilfield development process, seperated layer water injection is to solve interlayer contradiction, holding stratum energy, maintenance oil field long term stable production
The important means of high yield.The eccentric injection mandrel being now used for realizing seperated layer water injection supports the use with blanking plug, it is possible to realizes surveying and adjusts
Integration, and eccentric injection mandrel do not limited by the classification number of plies, so having obtained wide application in oil field development.
But along with the carrying out of waterflooding development, formation rock skeleton is washed away for a long time, and formation cementation material and pore structure are broken
Bad, sequent water flooding oil reservoir and sand production petroleum reservoir are turned for polymer, the eccentric injection mandrel of this type of Open architecture is at water injection well
Operation, well-flushing and stop note during, reservoir sand, near wellbore zone polymer return easily by injection well downhole flow regulator apopore and tell entrance
Inside injection well downhole flow regulator, cause being hampered of the blocking of down-hole string and later stage tester, meet card, it is difficult to carry out downhole testing,
Cause water injection well interval qualification rate low, also make this kind of water injection well operation frequent simultaneously, according to investigations, the average operation cycle less than
1 year.Additionally, for the higher oil reservoir of strata pressure, when stopping note, bleed-off fluid is carried and is shaked out to be entered by injection well downhole flow regulator apopore
Enter tubing string, and then enter ground flow, cause instrument, instrument to damage, the most also to low pressure water injection well automatic water filling.Warp
Investigation, existing counter-flow resisting bridge type eccentric injection mandrel is to realize anti-returning and tell, by sky by arranging small-sized ball-and-seat at apopore
Between restriction, the spring of this ball-and-seat is little causes spring thrust little, has the spool of ball-and-seat in the case of foreign material in pit shaft
Easily clamping stagnation is the most stuck, causes water outlet not smooth, affects seperated layer water injection effect；And spool is face with injection well downhole flow regulator seating nipple main body
Contact sealing with face, seal the term of validity short.
Utility model content
The purpose of this utility model is to provide anti-the returning of piston controlled type to tell eccentric injection mandrel, it is achieved water injection well is stopping note, anti-
Close during well-flushing and seal water hole, prevent reservoir sand, polymer from returning and tell inside entrance injection well downhole flow regulator or tubing string.
In order to achieve the above object, the utility model have employed following technical scheme, and anti-the returning of piston controlled type tells eccentric center water-distributing
Device, including main body, piston, one inclined hole of blanking plug of described body lumen design, body lumen uses with the inclined hole of blanking plug
Centering type designs, and described main body offers apopore, is cased with piston and spring outside described main body, is used for controlling above-mentioned
The opening and closing of apopore.
Described main body upper end connects upper joint sleeve, and lower end connects lower joint sleeve, and described upper joint sleeve upper end connects top connection,
Lower joint sleeve lower end connects lower contact.
Being provided with guide way inside described lower joint sleeve, guide way realizes fixing company by the screw of its upper end and lower joint sleeve
Connecing, arrange fairlead inside described guide way, in fairlead utilizes, the locking nail of hexagonal flush end is connected with guide way.
Described upper joint sleeve lower end outside connects locating ring, and clenches admittedly with interior hexagonal tapered end is locking, the seal of locating ring
Groove is provided with T-shaped seal, for arranging outside apopore upper seal piston, described lower joint sleeve upper end when stopping note
Regulation ring, and fastened with lower joint sleeve by flat head screw, it is provided with sheathed between described piston and regulation ring upper end
Spring in main body.
Compared to prior art, the utility model has the advantages that
The utility model, by telling valve eccentric injection mandrel body exterior anti-the returning of design piston type, utilizes high thrust spring to control
Anti-the returning of piston type tells valve, it is achieved that opens apopore during water filling, close when stopping note and seal water hole, prevents stratum reverse flow stuff
Enter inside injection well downhole flow regulator or tubing string, it is achieved that anti-the returning of injection well downhole flow regulator tells function, it is ensured that later stage tester is gone into the well smoothly,
Improve the rate of being successfully tested；Injection well downhole flow regulator body lumen and the inclined hole of blanking plug use offset design, and the body lumen center of circle is with inclined
The center of circle, hole synchronizes upper shifting, forms secondary eccentric structure, adds injection well downhole flow regulator main body wall thickness, enhance injection well downhole flow regulator anti-pressure ability.
Accompanying drawing explanation
Fig. 1 is that the utility model piston controlled type is prevented returning the structural representation telling eccentric injection mandrel.
In figure: 1-top connection；2-O RunddichtringO；3-upper joint sleeve；4-guide way；5-locating ring；Hexagonal cone in 6-
Hold locking nail；7-T type seal；8-piston；9-O RunddichtringO；10-spring；11-main body；12-regulates ring；13-
Flat head screw；14-lower joint sleeve；15-guide way；16-fairlead；The locking nail of hexagonal flush end in 17-；18-lower contact.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provide reference
With purposes of discussion, not it is used for the utility model is any limitation as.
According to Fig. 1, anti-the returning of piston controlled type tells eccentric injection mandrel, and including main body 11, piston 8, described body lumen sets
Having counted an inclined hole of blanking plug, body lumen and the inclined hole of blanking plug use centering type design, described main body set out water hole,
Piston 8 and spring 10 it is cased with, for controlling the opening and closing of above-mentioned apopore outside described main body.Described main body upper end
Threadeding with upper joint sleeve 3, threadeds with lower joint sleeve 14 in lower end, described upper joint sleeve upper end and top connection 1 spiral shell
Line connects, and threadeds with lower contact 18 in lower joint sleeve lower end.Threaded with locating ring 5 in described upper joint sleeve lower end,
And fasten with upper joint sleeve with the interior locking nail of hexagonal tapered end 6, the seal channel of locating ring arranges T-shaped seal 7, when stopping note
For at apopore upper seal piston 8, threaded with regulation ring 12 in described lower joint sleeve upper end, and by tack spiral shell
Nail 13 fastens with lower joint sleeve, is provided with, between described piston and regulation ring upper end, the spring 10 being set in main body.
Described piston 8 is set with on the main body 11.Described main body 11 upper end is connected with guide way 4 bolt.
Described lower joint sleeve 14 is internal is provided with guide way 15, and guide way realizes solid by the screw of its upper end and lower joint sleeve
Fixed connection, described guide way is internally provided with fairlead 16, and fairlead utilizes the interior locking nail of hexagonal flush end 17 with guide way even
Connect.
O RunddichtringO 2 is positioned in the seal groove of top connection 1, and O RunddichtringO 9 is positioned over the sealing ring of piston 8
In groove.
Ground or in down-hole by inclined for the blanking plug blanking plug that utilizes dropping feeder to put in injection well downhole flow regulator controlling water yield
In hole, and ensure that blanking plug seat is real.Water filling in oil pipe, injects water on the water nozzle and injection well downhole flow regulator main body of blanking plug
Apopore, acts on piston, promotion descent of piston, compression spring, after thrust is more than the upper top power of spring, and piston
Start descending, open exhalant canal, inject water and enter oil jacket annular space injection stratum.After pressure release or closing well stop note, in oil pipe
Not having pressure, now piston is not by descending thrust, and only by the upper top power of spring, causes piston stroking upward to reset, and closes
Close exhalant canal, sealed water injection allocator, prevent stratum reverse flow stuff from entering inside injection well downhole flow regulator or tubing string.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, other
Use the equivalence change of patent spirit of the present utility model, all should all belong to the scope of the claims of the present utility model.
Claims (4)
1. anti-the returning of piston controlled type tells eccentric injection mandrel, it is characterized in that, including main body, piston, one inclined hole of blanking plug of described body lumen design, body lumen and the inclined hole of blanking plug use centering type design, offer apopore in described main body, outside described main body, be cased with piston and spring, for controlling the opening and closing of above-mentioned apopore.
Anti-the returning of piston controlled type the most according to claim 1 tells eccentric injection mandrel, it is characterised in that described main body upper end connects upper joint sleeve, and lower end connects lower joint sleeve, and described upper joint sleeve upper end connects top connection, and lower joint sleeve lower end connects lower contact.
Anti-the returning of piston controlled type the most according to claim 2 tells eccentric injection mandrel, it is characterized in that, it is provided with guide way inside described lower joint sleeve, guide way is achieved a fixed connection with lower joint sleeve by the screw of its upper end, arranging fairlead inside described guide way, in fairlead utilizes, the locking nail of hexagonal flush end is connected with guide way.
Anti-the returning of piston controlled type the most according to claim 2 tells eccentric injection mandrel, it is characterized in that, described upper joint sleeve lower end outside connects locating ring, and clench admittedly with interior hexagonal tapered end is locking, the seal channel of locating ring is provided with T-shaped seal, for arranging regulation ring outside apopore upper seal piston, described lower joint sleeve upper end when stopping noting, and fastened with lower joint sleeve by flat head screw, it is provided with, between described piston and regulation ring upper end, the spring being set in main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095496.XU CN205532529U (en) | 2016-01-29 | 2016-01-29 | Piston control formula is prevented returning and is told eccentric injection mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095496.XU CN205532529U (en) | 2016-01-29 | 2016-01-29 | Piston control formula is prevented returning and is told eccentric injection mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205532529U true CN205532529U (en) | 2016-08-31 |
Family
ID=56773872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620095496.XU Expired - Fee Related CN205532529U (en) | 2016-01-29 | 2016-01-29 | Piston control formula is prevented returning and is told eccentric injection mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205532529U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060708A (en) * | 2017-05-29 | 2017-08-18 | 肇庆市思睿力机器人科技有限公司 | One kind is exempted to drag for dead mouth eccentric injection mandrel |
| CN110206517A (en) * | 2019-06-26 | 2019-09-06 | 山东大东联石油设备有限公司 | A kind of injection well downhole flow regulator |
| CN110847869A (en) * | 2019-11-15 | 2020-02-28 | 大庆市海兴石油科技发展有限公司 | Novel eccentric water distributor with pressure seal checking function |
| CN113216914A (en) * | 2021-06-09 | 2021-08-06 | 门万龙 | Layered injection allocation device |
-
2016
- 2016-01-29 CN CN201620095496.XU patent/CN205532529U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060708A (en) * | 2017-05-29 | 2017-08-18 | 肇庆市思睿力机器人科技有限公司 | One kind is exempted to drag for dead mouth eccentric injection mandrel |
| CN110206517A (en) * | 2019-06-26 | 2019-09-06 | 山东大东联石油设备有限公司 | A kind of injection well downhole flow regulator |
| CN110206517B (en) * | 2019-06-26 | 2021-09-28 | 山东大东联石油设备有限公司 | Water distributor |
| CN110847869A (en) * | 2019-11-15 | 2020-02-28 | 大庆市海兴石油科技发展有限公司 | Novel eccentric water distributor with pressure seal checking function |
| CN110847869B (en) * | 2019-11-15 | 2020-06-09 | 大庆市海兴石油科技发展有限公司 | Eccentric water distributor with pressure seal checking |
| CN113216914A (en) * | 2021-06-09 | 2021-08-06 | 门万龙 | Layered injection allocation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205532529U (en) | Piston control formula is prevented returning and is told eccentric injection mandrel | |
| US9297239B2 (en) | Smart hydraulic pumping device for recovery of oil and obtaining of information from the bottom of the reservoir | |
| CN103899581B (en) | Method and device for reverse circulation production and reverse circulation hydraulic jet pump core lifting | |
| CN101775977B (en) | Dual-tube injection well safety production string | |
| CN106014346A (en) | Method and device for water drainage and gas production by speed string matched with plunger gas lift | |
| CN202832376U (en) | Full-bore closable stratified sliding sleeve | |
| CN104153753A (en) | Horizontal well volume fracturing tubular column and method based on conventional oil tube pressure dragging | |
| CN102230377A (en) | Multifunctional gas lifting strata testing string | |
| CN109441386A (en) | A kind of device being completed at the same time seabed Casing-Cutting and capping operation | |
| CN101881143A (en) | Drillable ball injection sliding sleeve suitable for horizontal well | |
| CN209129591U (en) | A kind of achievable slim-hole water injection well layering surveys the device of tune water filling | |
| CN105317410B (en) | A kind of eccentric injection mandrel | |
| CN104196492B (en) | A kind of dragging down-hole plugging valve with pressure | |
| CN102953716A (en) | Parallel double-tube separate layer water injection string | |
| CN106150416A (en) | High angle water injection well capillary tube hydraulic booster throw in catcher | |
| CN110439510A (en) | A kind of method of layer-by-layer acidification seperated layer water injection | |
| CN208669259U (en) | A novel bottom seal dragging fracturing packer for horizontal wells | |
| CN202081890U (en) | All-service gas lifting stratum testing tubular column | |
| CN109707327A (en) | Concentric double-tube separate injection pressurized operation string | |
| CN206957699U (en) | Underground throttling and pressure testing device | |
| CN202673262U (en) | Downhole multifunctional adjustable anti-counterflow water distributor | |
| CN105545264A (en) | Carbon dioxide wheel injection oil displacement single-tube double-layer injection process tubular column | |
| CN201738869U (en) | Drillable ball-throwing sliding sleeve suitable for horizontal well | |
| US9194205B2 (en) | Device for a plug construction for conducting well tests | |
| CN216588560U (en) | Plateau continental facies shale gas testing and flowback equipment |
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: 20160831 Termination date: 20190129 |