CN205669392U - A kind of high opening force acidifying acid filling device - Google Patents
A kind of high opening force acidifying acid filling device Download PDFInfo
- Publication number
- CN205669392U CN205669392U CN201620552816.XU CN201620552816U CN205669392U CN 205669392 U CN205669392 U CN 205669392U CN 201620552816 U CN201620552816 U CN 201620552816U CN 205669392 U CN205669392 U CN 205669392U
- Authority
- CN
- China
- Prior art keywords
- central canal
- opening force
- sealing ring
- hydraulic cylinder
- enclosed
- 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.)
- Active
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
This utility model relates to oil extraction in oil field field of engineering technology, belong to a kind of high opening force acidifying acid filling device, it by top connection (1), spring (2), central canal (3), opening force actuator (4), sealing ring (5), cut off pin (6), sliding sleeve (7), hydraulic cylinder (8), L-type sealing ring (9), fixed pressure ring (10), fixing pin (11) and lower contact (12) and form；Wherein opening force actuator (4) is threadeded with hydraulic cylinder (8), opening force actuator (4) adjacent spring (2) is also enclosed within central canal (3), L-type sealing ring (9) is enclosed within the groove of central canal (3) and is compressed by fixed pressure ring (10), and central canal (3) is provided with inlet (13) and spray acid mouth (14).It, in 5 1/2 " and 7 " cased well acidifying tubing string string, has opening force high, stablizes set packer, the advantages such as heatproof load performance is excellent, and process safety is reliable.
Description
Technical field
This utility model relates to oil extraction in oil field field of engineering technology, belongs to a kind of high opening force acidifying acid filling device.
Background technology
Packing element external diameter about the 147mm " during cased well acidification technique, 7 " 7, seals space relatively big, and setting force is big
Big raising.Conventional acid filling instrument uses spring sanding machine to replace, and its opening force only up to reach 1.2MPa, far from meeting 7 "
Packer setting.And, after Conventional springs sanding machine is once constructed, " O " RunddichtringO damages, seal failure, and opening force reduces,
Cannot reliably reacidizing construction.For this situation, have developed a kind of high opening force acidifying acid filling device.
Summary of the invention
The purpose of this utility model is disclosure satisfy that high setting force 7 " packer setting, and repeat switch repeatedly remains to
" the high opening force of one of cased well acidification technique is acidified acid filling device to keep high opening force, it is achieved that fixed tubular column 7.
Of the present utility model realized by techniques below measure: it is by top connection, spring, central canal, opening force
Actuator, sealing ring, cut off pin, sliding sleeve, hydraulic cylinder, L-type sealing ring, fixed pressure ring, fixing pin and lower contact composition；
Wherein top connection is connected with central canal tapered thread, and the adjacent top connection of spring is enclosed within central canal, sliding sleeve by cut off pin with
Central canal is fixed, and opening force actuator is threadeded with hydraulic cylinder, and the adjacent spring of opening force actuator is also enclosed within central canal,
Being sealed by sealing ring between hydraulic cylinder and central canal, L-type sealing ring is enclosed within the groove of central canal and is compressed by fixed pressure ring, under
Joint is connected by fixing pin and central canal are fixing, and is sealed by sealing ring, and central canal is provided with inlet and spray acid mouth.
Top connection and lower contact all use 3 1/2, and " UPTBG can be directly connected to 3 1/2 " oil pipes.
Compared with the prior art this utility model has the advantage that
1) small bore fixed piston is devised.Liquid enters hydraulic cylinder from inlet, and pressure need to reach that sufficiently high (design is opened
Open pressure) time, the hydraulic pressure reverse force compression spring that the small bore fixed piston that hydraulic cylinder and central canal just can be made to be formed produces,
Promotion cylinder sleeve is up.Owing to cross section is little, compressing equal stroke then needs bigger pressure, improves acid filling device opening force.
2) opening force actuator can regulate hydraulic cylinder and open pressure.Range of accommodation, can be according to not from 8MPa to 15MPa
With setting pressure needs, set and open pressure.Therefore, it is widely used, looks for Lou in may be used for acidifying, set, test techniques such as altering.
3) central canal end uses L-type cushion rubber, and is compressed realization sealing by fixed pressure ring, and cylinder sleeve can be made to repeat to open and close
Close, it is achieved repeatedly acidizing treatment.Avoid cylinder sleeve before going upward to open, to form critical higher-pressure region and destroy cushion rubber, cause seal failure,
Packer can not stably set.
Accompanying drawing illustrates: Fig. 1 is this utility model structure diagram；
1-top connection in figure, 2-spring, 3-central canal, 4-opening force actuator, 5-sealing ring, 6-cut off pin, 7-cunning
Set, 8-hydraulic cylinder, 9-L RunddichtringO, 10-fixed pressure ring, 11-fixing pin, 12-lower contact, 13-inlet, 14-spray acid
Mouthful
Detailed description of the invention: the utility model is described in further detail below in conjunction with the accompanying drawings: it by top connection 1, spring 2,
Central canal 3, opening force actuator 4, sealing ring 5, cut off pin 6, sliding sleeve 7, hydraulic cylinder 8, L-type sealing ring 9, fixed pressure ring
10, fixing pin 11 and lower contact 12 form；Wherein top connection 1 is connected with central canal 3 tapered thread, connects on spring 2 is adjacent
1 is enclosed within central canal 3, and sliding sleeve 7 is fixed with central canal 3 by cutting off pin 6, opening force actuator 4 and hydraulic cylinder 8 spiral shell
Stricture of vagina connects, and the adjacent spring of opening force actuator 42 is also enclosed within central canal 3, and hydraulic cylinder 8 and central canal 3 are close by sealing ring 5
Envelope, L-type sealing ring 9 is enclosed within the groove of central canal 3 and is compressed by fixed pressure ring 10, lower contact 12 by fixing pin 11 with in
Heart pipe 3 is fixing to be connected, and is sealed by sealing ring 5, and central canal 3 is provided with inlet 13 and spray acid mouth 14.
Top connection 1 and lower contact 12 all use 3 1/2, and " UPTBG can be directly connected to 3 1/2 " oil pipes.
During onsite application, top connection 1 of the present utility model is connected 7 respectively with lower contact 12 " packer and in advance by setting
Meter requires to be set by opening force actuator 4 to open pressure 8MPa.When being connected with the pipe string of this instrument down to after projected depth, ground
Suppress in oil pipe, packer setting；When pressure reaches 8MPa, hydraulic cylinder 8 is up, and compression spring 2 opens spray acid mouth 14, right
7 " acidizing treatment implemented by cased well.
Claims (2)
1. a high opening force acidifying acid filling device, it is characterised in that: it is by top connection (1), spring (2), central canal (3), unlatching
Draught control mechanism (4), sealing ring (5), cut off pin (6), sliding sleeve (7), hydraulic cylinder (8), L-type sealing ring (9), fixed pressure ring
(10), fixing pin (11) and lower contact (12) composition；Wherein top connection (1) is connected with central canal (3) tapered thread, spring
(2) adjacent top connection (1) is enclosed within central canal (3), and sliding sleeve (7) is fixed with central canal (3) by cutting off pin (6), opening force
Actuator (4) is threadeded with hydraulic cylinder (8), and opening force actuator (4) adjacent spring (2) is also enclosed within central canal (3),
Hydraulic cylinder (8) is sealed by sealing ring (5) with central canal (3), and L-type sealing ring (9) is enclosed within the groove of central canal (3) and by solid
Level pressure ring (10) compresses, and lower contact (12) is connected by fixing pin (11) and central canal (3) are fixing, and close by sealing ring (5)
Envelope, central canal (3) is provided with inlet (13) and spray acid mouth (14).
One the most according to claim 1 high opening force acidifying acid filling device, it is characterised in that: top connection (1) and lower contact
(12) all use that 3 1/2 " UPTBG can be directly connected to 3 1/2 " oil pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620552816.XU CN205669392U (en) | 2016-06-08 | 2016-06-08 | A kind of high opening force acidifying acid filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620552816.XU CN205669392U (en) | 2016-06-08 | 2016-06-08 | A kind of high opening force acidifying acid filling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205669392U true CN205669392U (en) | 2016-11-02 |
Family
ID=57190985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620552816.XU Active CN205669392U (en) | 2016-06-08 | 2016-06-08 | A kind of high opening force acidifying acid filling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205669392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131123A (en) * | 2016-11-30 | 2018-06-08 | 中国石油天然气股份有限公司 | A kind of acid solution injection device and its method |
-
2016
- 2016-06-08 CN CN201620552816.XU patent/CN205669392U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131123A (en) * | 2016-11-30 | 2018-06-08 | 中国石油天然气股份有限公司 | A kind of acid solution injection device and its method |
| CN108131123B (en) * | 2016-11-30 | 2020-06-09 | 中国石油天然气股份有限公司 | Acid liquor injection device and method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206693997U (en) | A kind of oil field is every excavating technology tubing string | |
| CN204311997U (en) | A kind of pressure break reverse circulation valve | |
| CN110529073A (en) | A kind of solvable full-bore sliding sleeve based on intelligent control | |
| CN108386157A (en) | A kind of piston pressure open-type sliding sleeve switch and hydraulic fracturing construction method | |
| CN105464614B (en) | Step-by-step releasable flushing packer | |
| CN204457580U (en) | Combined type packer | |
| CN205669392U (en) | A kind of high opening force acidifying acid filling device | |
| CN104806196A (en) | Casing floating system for horizontal well | |
| CN206256896U (en) | Hydrostatic fluid pressure type segmentation deblocking water injection packer | |
| CN106761577A (en) | A kind of oil field is every excavating technology tubing string | |
| CN209163779U (en) | A kind of hydraulic packing linker | |
| CN201738870U (en) | Multifunctional expanding packer | |
| CN211115910U (en) | Three-piston hydraulic balance washable well packer | |
| CN208885241U (en) | A kind of ball-throwing type fixed valve | |
| CN204040993U (en) | A kind of backwashing wells steel frame expanding water injecting packer | |
| CN204646175U (en) | A kind of controllable type amplificate packer | |
| CN109162670A (en) | Soluble E type seating and sealing unit and its set method | |
| CN204082084U (en) | High pressure tests sealed packer | |
| CN209339919U (en) | A kind of level pressure water dispensing apparatus | |
| CN114458236A (en) | Soluble bridge plug for petroleum and natural gas drilling | |
| CN204113210U (en) | A kind of full well section is without bridging plug Semi-cementing tool | |
| CN105178925A (en) | Injection well operation oil jacket shunt balance blowout control tool | |
| CN204024572U (en) | Pit shaft spraying prevention switch device and oil extraction pump assembly | |
| CN203594402U (en) | Oil tube plugging device | |
| CN206942722U (en) | For former well casing post packing device and test sealing pipe column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |