CN203655263U - Underground double-sliding-sleeve layering sand blasting device - Google Patents
Underground double-sliding-sleeve layering sand blasting device Download PDFInfo
- Publication number
- CN203655263U CN203655263U CN201420015638.8U CN201420015638U CN203655263U CN 203655263 U CN203655263 U CN 203655263U CN 201420015638 U CN201420015638 U CN 201420015638U CN 203655263 U CN203655263 U CN 203655263U
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- China
- Prior art keywords
- sliding sleeve
- sleeve
- ball base
- outer sliding
- steel ball
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- Expired - Fee Related
Links
- 238000005488 sandblasting Methods 0.000 title abstract 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 238000012856 packing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000010306 acid treatment Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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Abstract
The utility model discloses an underground double-sliding-sleeve layering sand blasting device. The underground double-sliding-sleeve layering sand blasting device comprises an upper joint, a lower joint and an outer sliding sleeve; the upper end and the lower end of the outer sliding sleeve are connected with the upper joint and the lower joint respectively to form an outer cylinder together; the middle of the outer sliding sleeve is provided with a radial tool inner and outer channel; an outer sliding sleeve axial center hole channel is a production channel; an inner sliding sleeve is placed inside the outer sliding sleeve; the upper end surface and the lower end surface of the outer sliding sleeve are connected with an upper backing ring and a lower backing ring respectively; the positions of the inner sliding sleeve, which are corresponding to the upper backing ring and the lower backing ring, are provided with locking block holes which are used for placing an upper locking block and a lower locking block respectively; an upper ball seat and a lower ball seat are arranged in the inner sliding sleeve from top to bottom in turn; the upper ball seat is used for supporting a secondary steel ball; the lower ball seat is used for supporting a primary steel ball. According to the underground double-sliding-sleeve layering sand blasting device, the conversion of upper and lower layer measures is controlled by ground ball pitch, blocked parts of the inside of the underground double-sliding-sleeve layering sand blasting device are dug into the bottom of pipe columns after layering treatment is achieved, and accordingly the production channel of the pipe columns can be smooth and the purpose that the original pipe columns are directly utilized for production is achieved.
Description
Technical field
The utility model relates to downhole hardware, and especially a kind of two sliding sleeves in down-hole for separate layer acid treatment or separate stratum fracfturing construction change a layer sanding apparatus.
Background technology
When multilayered reservoir Oil/gas Well is carried out to a tubing string separate layer acid treatment or separate stratum fracfturing construction, conventionally adopt two sand blower of sliding sleeves just to measure layer, caber or pitching are opened successively each sandblaster and are completed stratum processing.While handling upper strata, institute's throwing steel ball (or rod) is still trapped in supporting ball seat, makes troubles, generally needs to trip out tubing string this time, then again descend productive completion tubing string to utilizing this tubing string to carry out a completion.
Summary of the invention
The purpose of this utility model is to provide the two sliding sleeves in down-hole to change a layer sanding apparatus, the conversion of the upper and lower layer of the mode control measure by ground pitching, and after layering is finished dealing with, its inner type of tamper evidence is all squeezed into bottom tubing string, make the production passage of tubing string unimpeded, realize the object of directly utilizing former tubing string to go into operation.
In order to reach above-mentioned purpose, the utility model has adopted following technical scheme, the two sliding sleeves in down-hole change a layer sanding apparatus, comprise top connection, lower contact, outer sliding sleeve, the upper and lower two ends of described outer sliding sleeve form outer cylinder body after connecting respectively top connection and lower contact jointly, in the middle of described outer sliding sleeve, offer instrument internal and external channel radially, and outer sliding sleeve axial centre hole path is for producing passage, described outer sliding sleeve inside packs inner sliding sleeve into, the upper and lower both ends of the surface of described outer sliding sleeve are connected with respectively gasket ring and lower gasket ring, described inner sliding sleeve is in correspondence, the position of lower gasket ring has the lock dog hole for packing upper locking piece and lower lock dog into, in described inner sliding sleeve, be disposed with upper ball base and lower ball base from top to bottom, the upper port of described upper ball base is used for accepting secondary steel ball, the upper port of lower ball base is used for accepting one-level steel ball, and described lower ball base outer wall is being accepted before one-level steel ball shutoff at instrument internal and external channel and producing between passage.
Described lower ball base and upper ball base pack into from inner sliding sleeve top successively, and are temporarily fixed on inner sliding sleeve by controlling shear pin.
The described upper and lower lock dog outer wall respectively outer wall of corresponding upper and lower gasket ring is inclined design.
Described top connection and outer sliding sleeve upper end be by screw threads for fastening, and lock with check pin; Lower contact and outer sliding sleeve lower end be by screw threads for fastening, and lock with check pin.
Described one-level steel ball and lower ball base fitted seal, secondary steel ball and upper ball base fitted seal.
Compared to prior art, the utlity model has following beneficial effect:
The utility model is mainly used in two envelope layering tubing strings and carries out separate layer acid treatment or pressure break, adopt kit, the conversion of the upper and lower layer of the mode control measure by ground pitching, and after layering is finished dealing with, its inner type of tamper evidence is all squeezed into bottom tubing string, make the production passage of tubing string unimpeded, realize the object of directly utilizing former tubing string to go into operation.
1. kit can be controlled the conversion of two envelope layering measure tubing strings to upper and lower layer work for the treatment of;
2. can make measure tubing string directly go into operation;
3. complete function, execute-in-place is easy.
Brief description of the drawings
Fig. 1 is the structure chart that the two sliding sleeves in down-hole of the present utility model change layer sanding apparatus.
In figure: 1, top connection; 2, secondary steel ball; 3, control shear pin; 4, upper locking piece; 5, upper gasket ring; 6, sealing ring; 7, check pin; 8, outer sliding sleeve; 9, inner sliding sleeve; 10, upper ball base; 11, one-level steel ball; 12, lower ball base; 13, lower gasket ring; 14, lower lock dog; 15, lower contact.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing only provides the use of reference with explanation, is not used for the utility model to be limited.
As shown in Figure 1, the two sliding sleeves in down-hole change a layer sanding apparatus, the main body of top connection 1, outer sliding sleeve 8, check pin 7 and lower contact 15 this instrument of composition external structures, upper gasket ring 5, sealing ring 6 and lower gasket ring 13 are in body interior, form the auxiliary control unit of this instrument, secondary steel ball 2, upper locking piece 4, inner sliding sleeve 9, upper ball base 10, one-level steel ball 11, lower ball base 12 and lower lock dog 14, in body interior, form the action control parts of this instrument.
The two sliding sleeves in down-hole change a layer sanding apparatus, comprise top connection 1, lower contact 15, outer sliding sleeve 8, the upper and lower two ends of described outer sliding sleeve form outer cylinder body after connecting respectively top connection and lower contact jointly, in the middle of described outer sliding sleeve, offer instrument internal and external channel radially, and outer sliding sleeve axial centre hole path is for producing passage, described outer sliding sleeve inside packs inner sliding sleeve 9 into, the upper and lower both ends of the surface of described outer sliding sleeve are connected with respectively gasket ring 5 and lower gasket ring 13, and described inner sliding sleeve has the lock dog hole for packing upper locking piece 4 and lower lock dog 14 in the position of the upper and lower gasket ring of correspondence; In described inner sliding sleeve, be disposed with upper ball base 10 and lower ball base 12 from top to bottom, the upper port of described upper ball base is used for accepting secondary steel ball 2, the upper port of lower ball base is used for accepting one-level steel ball 11, and described lower ball base outer wall is being accepted before one-level steel ball shutoff at instrument internal and external channel and producing between passage.Described lower ball base and upper ball base pack into from inner sliding sleeve top successively, and are temporarily fixed on inner sliding sleeve by controlling shear pin 3.The described upper and lower lock dog outer wall respectively outer wall of corresponding upper and lower gasket ring is inclined design.Described top connection and outer sliding sleeve upper end be by screw threads for fastening, and lock with check pin 7; Lower contact and outer sliding sleeve lower end be by screw threads for fastening, and lock with check pin.Described one-level steel ball and lower ball base fitted seal, secondary steel ball and upper ball base fitted seal.
Two sliding sleeves change layer sanding apparatus and are arranged between two two-stage packers that seal layering measure tubing strings, just to top measure layer.When use, first by two-stage packer setting, then lower floor is processed to (acidifying or pressure break); After lower floor finishes dealing with, throw one-level steel ball 11 and be seated in the sealing surface of lower ball base 12 from well head, it propelling movement is fallen down on lock dog 14 with hydraulic pressure, open instrument internal and external channel, then upper strata is processed; After finishing dealing with in upper strata, throw secondary steel ball 2 and be seated in the sealing surface of upper ball base 10 from well head, interrupt and control shear pin 3 with hydraulic pressure, in the time that upper ball base 10 slips over upper locking piece 4, upper locking piece 4 with the effect of upper gasket ring 5 inclined-plane extruding forces under retraction inner sliding sleeve 9, make inner sliding sleeve 9 releases descending; The lower lock dog 14 that embeds inner sliding sleeve 9 bottoms skids off after lower gasket ring 13, outer outstanding to inner sliding sleeve 9 under the extruding of lower ball base 12 bottoms, the obstruction of inner sliding sleeve inner chamber is removed, lower ball base 12, one-level steel ball 11, upper ball base 10 and secondary steel ball 2 are deviate from from instrument bottom successively, slide to measure tubing string bottom, now the production passage of upper and lower payzone can unimpeded operation.
The foregoing is only preferred embodiment of the present utility model, non-in order to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (5)
1. the two sliding sleeves in down-hole change a layer sanding apparatus, comprise top connection, lower contact, outer sliding sleeve, the upper and lower two ends of described outer sliding sleeve form outer cylinder body after connecting respectively top connection and lower contact jointly, in the middle of described outer sliding sleeve, offer instrument internal and external channel radially, and outer sliding sleeve axial centre hole path is for producing passage, it is characterized in that, described outer sliding sleeve inside packs inner sliding sleeve into, the upper and lower both ends of the surface of described outer sliding sleeve are connected with respectively gasket ring and lower gasket ring, and described inner sliding sleeve has the lock dog hole for packing upper locking piece and lower lock dog in the position of the upper and lower gasket ring of correspondence; In described inner sliding sleeve, be disposed with upper ball base and lower ball base from top to bottom, the upper port of described upper ball base is used for accepting secondary steel ball, the upper port of lower ball base is used for accepting one-level steel ball, and described lower ball base outer wall is being accepted before one-level steel ball shutoff at instrument internal and external channel and producing between passage.
2. the two sliding sleeves in down-hole according to claim 1 change a layer sanding apparatus, it is characterized in that, described lower ball base and upper ball base pack into from inner sliding sleeve top successively, and are temporarily fixed on inner sliding sleeve by controlling shear pin.
3. the two sliding sleeves in down-hole according to claim 1 change a layer sanding apparatus, it is characterized in that, the described upper and lower lock dog outer wall respectively outer wall of corresponding upper and lower gasket ring is inclined design.
4. the two sliding sleeves in down-hole according to claim 1 change a layer sanding apparatus, it is characterized in that, described top connection and outer sliding sleeve upper end be by screw threads for fastening, and lock with check pin; Lower contact and outer sliding sleeve lower end be by screw threads for fastening, and lock with check pin.
5. the two sliding sleeves in down-hole according to claim 1 change a layer sanding apparatus, it is characterized in that described one-level steel ball and lower ball base fitted seal, secondary steel ball and upper ball base fitted seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015638.8U CN203655263U (en) | 2014-01-11 | 2014-01-11 | Underground double-sliding-sleeve layering sand blasting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015638.8U CN203655263U (en) | 2014-01-11 | 2014-01-11 | Underground double-sliding-sleeve layering sand blasting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203655263U true CN203655263U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420015638.8U Expired - Fee Related CN203655263U (en) | 2014-01-11 | 2014-01-11 | Underground double-sliding-sleeve layering sand blasting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203655263U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443103A (en) * | 2015-09-10 | 2016-03-30 | 盐城市畅海精密机械有限公司 | Double-layer channel flow complementary type pressure guide sand blaster |
| CN115030696A (en) * | 2021-03-03 | 2022-09-09 | 中国石油天然气股份有限公司 | Oil well production layer plugging and production linkage controller |
-
2014
- 2014-01-11 CN CN201420015638.8U patent/CN203655263U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443103A (en) * | 2015-09-10 | 2016-03-30 | 盐城市畅海精密机械有限公司 | Double-layer channel flow complementary type pressure guide sand blaster |
| CN115030696A (en) * | 2021-03-03 | 2022-09-09 | 中国石油天然气股份有限公司 | Oil well production layer plugging and production linkage controller |
| CN115030696B (en) * | 2021-03-03 | 2023-11-28 | 中国石油天然气股份有限公司 | Oil well production layer blocking and production linkage controller |
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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 |
Granted publication date: 20140618 Termination date: 20160111 |