CN205618144U - Double -barrelled formula multilayer acidizing water injection string - Google Patents
Double -barrelled formula multilayer acidizing water injection string Download PDFInfo
- Publication number
- CN205618144U CN205618144U CN201620337425.6U CN201620337425U CN205618144U CN 205618144 U CN205618144 U CN 205618144U CN 201620337425 U CN201620337425 U CN 201620337425U CN 205618144 U CN205618144 U CN 205618144U
- Authority
- CN
- China
- Prior art keywords
- water injection
- acid
- acidization
- injection string
- string
- 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
The utility model discloses a double -barrelled formula multilayer acidizing water injection string, including being responsible for post and supplementary tubular column, supplementary tubular column be provided with two altogether, install and be linked together in being responsible for the post respectively in the upper end of being responsible for the post, supplementary tubular column on still install reciprocating type switch and solenoid valve switch respectively, thereby person in charge's post on be provided with the acidizing water injection device that a plurality of section was arranged from top to bottom in proper order, acidizing water injection device include from the top set gradually on being responsible for the post anchor, packer, acidizing water injection water injection mandrel, for sour or arrange sour ejector and throttle pipe. The utility model discloses set up reciprocating type switch under the circumstances that does not influence original structure on auxiliary tubular column, the supplementary tubular column that has electromagnetic switch has constituted the acidizing water injection string among the prior art with person in charge's support connnection, and sets up reciprocating type switch on another supplementary tubular column, has increased the light shape formula of opening of tubular column, has expanded its scope that is suitable for.
Description
Technical field
This utility model relates to a kind of oil field well water filling acidifying tubing string, a kind of double hose multilayer acidization water injection string.
Background technology
Existing tubing string needs when carrying out drilling well and taking oil to carry out down-hole pipe being acidified water filling, existing acidifying water injection string is in order to time-consuming, reducing working procedure majority is to use multilayer acidization water injection string, so can be acidified water filling with disposal multi-layer, very convenient；But still there is bigger shortcoming in traditional multilayer acidization water injection string.
One is implementing separate layer acid treatment construction when, is affected by through type tubular column structure, can only select the shutoff form of a kind of mode；When being exactly additionally separate layer acid treatment water filling traditionally be typically the tubing string bottom arrange one acidifying for liquid device, it is exactly in the case of pressure is not or strong that design traditionally has certain defect, the injection allocation amount causing acid solution is inadequate, the standard that can not reach set causes being acidified of low quality, have a strong impact on follow-up oil recovery process, and existing using for liquid device majority is acidified for acid device, the use of this device is more complicated, especially exist during switch and postpone, cause acid solution over flood or very few, affect acidization.
Utility model content
The purpose of this utility model is the deficiency existed for prior art, it is provided that a kind of double hose multilayer acidization water injection string, and its technical scheme is as follows:
A kind of double hose multilayer acidization water injection string, including riser leg and auxiliary tubing string, described auxiliary tubing string is provided with two altogether, and the upper end being arranged on riser leg is connected respectively at riser leg, and described auxiliary tubing string is also separately installed with rocker switch and electromagnetic valve switch；The acidifying water filling device being provided with some sections on described riser leg thus be arranged in order up and down；Described acidifying water filling device be included in set gradually from top to down on riser leg anchor, packer, acidifying water filling injection well downhole flow regulator, for acid or acid discharge ejector and throttle pipe；And it is also equipped with backwash ball seat on the riser leg below orlop acidifying water filling device；The lower section of described backwash ball seat is provided with screen casing；The lower section of described screen casing is provided with plug.
Further, described replace acid or acid discharge ejector include flow jet work cylinder；It is provided with on described flow jet work cylinder for acid hole；And be provided with in flow jet work cylinder control for acid bore closure for acid bore closure device.
Further, being uniformly arranged at drum surface for acid hole on described flow jet work cylinder, and upper and lower sides is minimum is provided with one.
Further, the top and the bottom of described riser leg is each provided with a centralizer；Described centralizer, for positioning the position of riser leg, provides an accurate location and direction for anchor.
Further, described anchor is self-locking hydraulic anchor；The grappling pressure of this anchor is between 3 MPas to 5 MPas.
Further, described packer is airtight power expansion packer；This packer as wind pressure be 8 MPas to 12 MPas.
Further, described throttle pipe is provided with throttle orifice；And described throttle orifice is at least provided with two, and symmetrical setting.
Further, described plug is blood pressure lowering plug.
Beneficial effect: this utility model has the advantages that
(1) this utility model is provided with rocker switch in the case of not affecting original structure on the tubing string of auxiliary, being connected with riser leg with the auxiliary tubing string of electromagnetic switch is to constitute acidifying water injection string of the prior art, and set up rocker switch on another auxiliary tubing string, add the form of opening the light of tubing string, extend its scope being suitable for；
(2) in this utility model use for acid or acid discharge ejector replace tradition tubing string in for liquid device；Acid or acid discharge ejector should be provided with flow jet work cylinder, and complete the process for acid and acid discharge by the acid hole of replacing on flow jet work cylinder, work process is simply, easy to use；And it is internally provided with and controls the closedown for acid hole and unlatching for acid bore closure device, work process wink closes and opens in wink, do not have delay, precise controlling acid amount；
(3) this utility model is provided with for acid or acid discharge ejector in each acidifying water filling device；So can be accurately controlled operation for acid process, it is ensured that the injection allocation amount of acid solution, to avoid the situation that acid solution is too much or very few.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment, being further elucidated with this utility model, the present embodiment is implemented under premised on technical solutions of the utility model, it should be understood that these embodiments are merely to illustrate this utility model rather than limit scope of the present utility model.
As shown in Figure 1, a kind of double hose multilayer acidization water injection string, including riser leg 1 and auxiliary tubing string 2, described auxiliary tubing string 2 is provided with two altogether, the upper end being arranged on riser leg 1 is connected respectively at riser leg 1, and described auxiliary tubing string 2 is also separately installed with rocker switch 3 and electromagnetic valve switch 4；The acidifying water filling device being provided with some sections on described riser leg 1 thus be arranged in order up and down；Described acidifying water filling device be included on riser leg 1 set gradually from top to down anchor 5, packer 6, acidifying water filling injection well downhole flow regulator 7, for acid or acid discharge ejector 8 and throttle pipe 9；Wherein, anchor 5 is self-locking hydraulic anchor, and its grappling pressure is between 3 MPas to 5 MPas.Packer 6 is airtight power expansion packer, and it sets pressure is 8 MPas to 12 MPas.And on throttle pipe 9, it is provided with throttle orifice 901；And described throttle orifice 901 is at least provided with two, and symmetrical setting；Plug 12 is blood pressure lowering plug.
Therein for acid or acid discharge ejector 8 include flow jet work cylinder 801；It is provided with on described flow jet work cylinder 801 for acid hole 802；And be provided with in flow jet work cylinder 801 control for acid hole 802 close for acid bore closure device 803；And in order to ensure that the borehole wall all can be acidified, on flow jet work cylinder 801 should be to be uniformly arranged at drum surface for acid hole 802, and upper and lower sides is provided with one.
It is also equipped with backwash ball seat 10 on riser leg 1 below orlop acidifying water filling device；The lower section of described backwash ball seat 10 is provided with screen casing 11；The lower section of described screen casing 11 is provided with plug 12.
The top of riser leg 1 and bottom are each provided with a centralizer 13；Described centralizer 13, for positioning the position of riser leg 1, provides an accurate location and direction for anchor 5.
This utility model is provided with rocker switch in the case of not affecting original structure on the tubing string of auxiliary, being connected with riser leg with the auxiliary tubing string of electromagnetic switch is to constitute acidifying water injection string of the prior art, and set up rocker switch on another auxiliary tubing string, add the form of opening the light of tubing string, extend its scope being suitable for.
In this utility model use for acid or acid discharge ejector replace tradition tubing string in for liquid device；Acid or acid discharge ejector should be provided with flow jet work cylinder, and complete the process for acid and acid discharge by the acid hole of replacing on flow jet work cylinder, work process is simply, easy to use；And it is internally provided with and controls the closedown for acid hole and unlatching for acid bore closure device, work process wink closes and opens in wink, do not have delay, precise controlling acid amount.
This utility model is provided with for acid or acid discharge ejector in each acidifying water filling device；So can be accurately controlled operation for acid process, it is ensured that the injection allocation amount of acid solution, to avoid the situation that acid solution is too much or very few.
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, on the premise of without departing from this utility model principle; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
1. a double hose multilayer acidization water injection string, it is characterized in that: include riser leg (1) and auxiliary tubing string (2), described auxiliary tubing string (2) is provided with two altogether, the upper end being arranged on riser leg (1) is connected respectively at riser leg (1), and described auxiliary tubing string (2) is also separately installed with rocker switch (3) and electromagnetic valve switch (4)；
The acidifying water filling device being provided with some sections on described riser leg (1) thus be arranged in order up and down；Described acidifying water filling device be included on riser leg (1) set gradually from top to down anchor (5), packer (6), acidifying water filling injection well downhole flow regulator (7), for acid or acid discharge ejector (8) and throttle pipe (9)；And it is also equipped with backwash ball seat (10) on the riser leg (1) below orlop acidifying water filling device；The lower section of described backwash ball seat (10) is provided with screen casing (11)；The lower section of described screen casing (11) is provided with plug (12).
A kind of double hose multilayer acidization water injection string the most according to claim 1, it is characterised in that: described includes flow jet work cylinder (801) for acid or acid discharge ejector (8)；It is provided with on described flow jet work cylinder (801) for acid hole (802)；And be provided with in flow jet work cylinder (801) control for acid hole (802) close for acid bore closure device (803).
A kind of double hose multilayer acidization water injection string the most according to claim 2, it is characterised in that: being uniformly arranged at drum surface for acid hole (802) on described flow jet work cylinder (801), and upper and lower sides is minimum is provided with one.
A kind of double hose multilayer acidization water injection string the most according to claim 1, it is characterised in that: the top of described riser leg (1) and bottom are each provided with a centralizer (13).
A kind of double hose multilayer acidization water injection string the most according to claim 1, it is characterised in that: described anchor (5) is self-locking hydraulic anchor, and the grappling pressure of this anchor (5) is between 3 MPas to 5 MPas.
A kind of double hose multilayer acidization water injection string the most according to claim 1, it is characterised in that: described packer (6) is airtight power expansion packer；And this packer (6) as wind pressure be 8 MPas to 12 MPas.
A kind of double hose multilayer acidization water injection string the most according to claim 1, it is characterised in that: it is provided with throttle orifice (901) on described throttle pipe (9)；And described throttle orifice (901) is at least provided with two, and symmetrical setting.
A kind of double hose multilayer acidization water injection string the most according to claim 1, it is characterised in that: described plug (12) is blood pressure lowering plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620337425.6U CN205618144U (en) | 2016-04-21 | 2016-04-21 | Double -barrelled formula multilayer acidizing water injection string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620337425.6U CN205618144U (en) | 2016-04-21 | 2016-04-21 | Double -barrelled formula multilayer acidizing water injection string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205618144U true CN205618144U (en) | 2016-10-05 |
Family
ID=57027865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620337425.6U Active CN205618144U (en) | 2016-04-21 | 2016-04-21 | Double -barrelled formula multilayer acidizing water injection string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205618144U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578501A (en) * | 2019-09-19 | 2019-12-17 | 中国石油化工股份有限公司 | Multi-stratum layer-by-layer acidification and layered water injection method |
| CN110952927A (en) * | 2019-12-16 | 2020-04-03 | 中国石油大学(华东) | Double-pipe type high-pressure abrasive jet horizontal drilling device |
-
2016
- 2016-04-21 CN CN201620337425.6U patent/CN205618144U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578501A (en) * | 2019-09-19 | 2019-12-17 | 中国石油化工股份有限公司 | Multi-stratum layer-by-layer acidification and layered water injection method |
| CN110578501B (en) * | 2019-09-19 | 2021-04-13 | 中国石油化工股份有限公司 | Multi-stratum layer-by-layer acidification and layered water injection method |
| CN110952927A (en) * | 2019-12-16 | 2020-04-03 | 中国石油大学(华东) | Double-pipe type high-pressure abrasive jet horizontal drilling device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101864921B (en) | Well completion and oil production string of horizontal well and well completion and oil production processes thereof | |
| CN202108493U (en) | Water jetting multi-cluster subsection fracturing strings of horizontal well | |
| WO2015000447A1 (en) | Injection-extraction integrated sand-discharging oil extraction method for a thermal recovery and device thereof | |
| CN103541710A (en) | Method for forcedly draining gas from underground gas and liquid alternate phase-drive fracture coal of coal mine | |
| CN201095977Y (en) | Gas lift pipe column for hot washing protective oil layer and no-killing operation | |
| CN109736737B (en) | Method for snubbing tripping of reservoir gas drilling well | |
| CN201705276U (en) | Well completion and flow string of horizontal well | |
| CN207093047U (en) | A kind of negative pressure gas-lift production tubing string | |
| CN205618144U (en) | Double -barrelled formula multilayer acidizing water injection string | |
| CN204126624U (en) | Open-hole horizontal well fixed tubular column jetting sectional well completion fracturing string | |
| CN204703876U (en) | A kind of bridge-type concentric separated-injection tubing string | |
| CN201439701U (en) | Stage cementing distributor | |
| CN112878904B (en) | Well body structure optimization method of double-pipe double-gradient drilling technology | |
| CN202108424U (en) | Perforating, fracturing and draining integrated tubular column for oil well | |
| CN103806882B (en) | Liquid method and device is adopted in a kind of gaslift | |
| CN202659194U (en) | Novel well wall restoring device with combined sleeve and corrugated pipe | |
| CN208686362U (en) | A kind of horizontal well integrated high-efficiency water shutoff pipe column | |
| CN204266988U (en) | A kind of pilot-controlled switch sliding sleeve | |
| CN105443101A (en) | Compression type double-sealing and single-clamping subsection fracturing process pipe column and fracturing method thereof | |
| CN105298443A (en) | Oil pipe float valve and blowout prevention, gas lift and fracture combined operation method for underbalance well completion oil pipe descending | |
| CN203452724U (en) | Casing float shoe | |
| CN204716201U (en) | A kind of pilot-controlled switch sliding sleeve | |
| CN209369771U (en) | Leak-resistance valve | |
| CN208502734U (en) | A kind of controllable bleeder | |
| CN108343408A (en) | Water drive gas reservoir recovery method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |