CN204060616U - Bridge plug tool suitable for fracturing of vertical well seam network - Google Patents
Bridge plug tool suitable for fracturing of vertical well seam network Download PDFInfo
- Publication number
- CN204060616U CN204060616U CN201420415503.0U CN201420415503U CN204060616U CN 204060616 U CN204060616 U CN 204060616U CN 201420415503 U CN201420415503 U CN 201420415503U CN 204060616 U CN204060616 U CN 204060616U
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- China
- Prior art keywords
- tool
- bridge plug
- fracturing
- coiled tubing
- construction
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- 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
- 238000010276 construction Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 238000005488 sandblasting Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to an oil field used in oil extraction productionThe bridge plug tool is suitable for fracturing of a vertical well fracture network. The tool comprises a coiled tubing joint, and is characterized in that: the oil pipe joint is sequentially connected with an outer slip continuous oil pipe connector, a double-valve check valve, a hydraulic releasing tool, a rigid centralizer, a continuous oil pipe, a rigid centralizer, a differential pressure type sand blasting perforation sliding sleeve, a hydraulic setting tool, a push cylinder and a bridge plug. The tool can simultaneously ensure the multi-layer continuous construction under pressure, and the operation time efficiency is high; compared with other fracturing modes, the construction discharge capacity can be greatly improved, and the highest construction discharge capacity can reach 14m3Min, under the same reservoir conditions, the construction pressure at the bottom of the well can be effectively improved; the bridge plug chips after drilling and grinding can be discharged out of the well along with gas-liquid flow, and a full-drift-diameter shaft is reserved for subsequent operation and production.
Description
Technical field
The utility model relates to oil field and run into fine and close sand mud reservoir in oil recovery is produced, the bridging plug instrument of a kind of applicable straight well seam net pressure break used when carrying out storey increase design.
Background technology
In domestic and international employing oil pipe pressing crack construction process, for 2
7/8 "with 3
1/2 "the maximum operational discharge capacity of oil pipe of specification is no more than 4.0m
3/ min.When more than 4.0m
3during the construction of/min discharge capacity, the external general mode pressure break adopting electric cable bridge plug sleeve pipe to inject, relevant kit is comparatively ripe.Domestic for fine and close sand mud reservoir stitch on a large scale net volume fracturing transformation, technological requirement construction row reach 8.0 m
3/ more than min, and adopt oil pipe pressure break mode, tubing string restriction loss is large, is difficult to realize the construction of high discharge capacity, the highest operational discharge capacity 8.0m
3during/min, prolong stroke pressure loss more than 40%, impact seam net fracturing technology effect, fracturing tool is difficult to meet construction requirement.
Utility model content
In order to realize the volume increase of fine and close sand shale, the utility model provides a kind of bridging plug instrument of applicable straight well seam net pressure break.This instrument can ensure multilayer sequential production with pressure simultaneously, and operation timeliness is high; Operational discharge capacity can by the 8.0m of oil pipe pressure break
3/ min brings up to 14m
3/ min, increases substantially NDHTP; The bridging plug chip bored after mill can be discharged outside well with gas-liquid flow, for subsequent job and production leave full-bore pit shaft.
The technical solution of the utility model is: a kind of bridging plug instrument of applicable straight well seam net pressure break, comprise coiled tubing joint, under described oil connection, connect external slips coiled tubing connector, dual-active lobe ball-and-seat, hydraulic releasing tool, rigidity centralizer, coiled tubing, rigidity centralizer, differential abrasive perforating sliding sleeve, hydraulic setting tool, pushing cylinder and bridging plug successively.
The beneficial effects of the utility model are: this process pipe string, by sleeve pipe injection mode, can realize 10.0m
3/ more than min high flow rate operation, on year-on-year basis oil pipe pressure break mode, bottom pressure can improve more than 40%; Instrument is carried by coiled tubing, and bridging plug sets and realizes with abrasive perforating one-trip string, and can ensure multilayer sequential production with pressure, operation timeliness is high simultaneously; The bridging plug chip bored after mill can be discharged outside well with gas-liquid flow, for subsequent job and production leave full-bore pit shaft.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is straight well seam bridge plug fracturing work schematic flow sheet.
1-external slips coiled tubing connector in figure, 2-dual-active lobe ball-and-seat, 3-hydraulic releasing tool, 4-rigidity centralizer, 5-coiled tubing, 6-rigidity centralizer, the differential abrasive perforating sliding sleeve of 7-, 8-hydraulic setting tool, 9-pushing cylinder, 10-bridging plug.
Detailed description of the invention
Shown in Fig. 1 and Fig. 2, the bridging plug instrument of this applicable straight well seam net pressure break, comprise coiled tubing joint, be threaded under wherein said oil connection external slips coiled tubing connector 1, dual-active lobe ball-and-seat 2, hydraulic releasing tool 3, rigidity centralizer 4, coiled tubing 5, rigidity centralizer 6, differential abrasive perforating sliding sleeve 7, hydraulic setting tool 8, pushing cylinder 9 and bridging plug 10 successively, as shown in Figure 1.
Utilize the Specific construction technological process of this bridging plug instrument as shown in Figure 2, the 1st step, through wash well, sleeve pipe scraping, prepare before doing pressure; 2nd step, utilizes coiled tubing to send into perforating gun, carries out the 1st section of perforation, trip out perforating gun; 3rd step, the first perforated interval carries out sleeve pipe injection and carries out the 1st section of fracturing work; 4th step, band is depressed and is sent into perforating gun into coiled tubing, carries out the 21st section of perforation, then enters bridging plug tubing string down, and set bridging plug and give up; 5th step, trips out tubing string after second segment perforation, implements second segment pressure break; 6th step, repeats the 4th step and the 5th step, all interval pressure breaks; 7th step, utilizes coiled tubing to send into syringe pipe sand washing; 8th step, utilizes coiled tubing to send into and bores grinder tool, bore and grind off whole bridging plug; 9th step, lower pump is gone into operation.
For the new well of non-perforation, according to seam net Fracturing Project demand calculation optimization perforating modes and eyelet quantity, current-limiting mode cloth hole; Consider borehole frictional resistance and sleeve pipe pressure-bearing Optimizing construction discharge capacity.During construction, according to the perforating gun entering varying number under process requirements, successively carry out perforation and fracturing work, adopt continuous tubing drill to remove bridging plug after pressure and carry out discharge opeing, production.
Claims (1)
1. the bridging plug instrument of an applicable straight well seam net pressure break, comprise coiled tubing joint, it is characterized in that: under described oil connection, connect external slips coiled tubing connector, dual-active lobe ball-and-seat, hydraulic releasing tool, rigidity centralizer, coiled tubing, rigidity centralizer, differential abrasive perforating sliding sleeve, hydraulic setting tool, pushing cylinder and bridging plug successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420415503.0U CN204060616U (en) | 2014-07-25 | 2014-07-25 | Bridge plug tool suitable for fracturing of vertical well seam network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420415503.0U CN204060616U (en) | 2014-07-25 | 2014-07-25 | Bridge plug tool suitable for fracturing of vertical well seam network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204060616U true CN204060616U (en) | 2014-12-31 |
Family
ID=52202154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420415503.0U Expired - Fee Related CN204060616U (en) | 2014-07-25 | 2014-07-25 | Bridge plug tool suitable for fracturing of vertical well seam network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204060616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441399A (en) * | 2018-12-13 | 2019-03-08 | 山东博赛特石油技术有限公司 | One kind can sand washing bridge plug |
-
2014
- 2014-07-25 CN CN201420415503.0U patent/CN204060616U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441399A (en) * | 2018-12-13 | 2019-03-08 | 山东博赛特石油技术有限公司 | One kind can sand washing bridge plug |
| CN109441399B (en) * | 2018-12-13 | 2024-01-23 | 山东博赛特石油技术有限公司 | Bridge plug capable of flushing sand |
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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: 20141231 Termination date: 20210725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |