CN204060645U - Can repeatedly ball-throwing type screen casing - Google Patents
Can repeatedly ball-throwing type screen casing Download PDFInfo
- Publication number
- CN204060645U CN204060645U CN201420529306.1U CN201420529306U CN204060645U CN 204060645 U CN204060645 U CN 204060645U CN 201420529306 U CN201420529306 U CN 201420529306U CN 204060645 U CN204060645 U CN 204060645U
- Authority
- CN
- China
- Prior art keywords
- screen casing
- casing top
- ball
- cuts
- ball seat
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000011347 resin Substances 0.000 abstract description 7
- 229920005989 resin Polymers 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 5
- 239000003129 oil well Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000002253 acid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000012508 resin bead Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model belongs to the design and manufaction technical field of construction operation equipment under oil well, can repeatedly ball-throwing type screen casing in particular to one, comprise screen casing top and screen casing bottom, described screen casing top and screen casing bottom are connected by the screw thread cooperatively interacted and are sealed by sealing ring; Stop collar is fixed on the step of screen casing bottom endoporus by screen casing top, and the internal diameter of stop collar is less than the step internal diameter of screen casing bottom endoporus; Sliding sleeve front portion is threaded with ball seat by what cooperatively interact and is sealed with sealing ring, is arranged in screen casing top; Sliding sleeve rear portion has and cuts off groove, aligns during installation with the hole that cuts off on screen casing top, and fixing with cutting off, and cuts off hole plug and seals; Ball seat is arranged there is flexible back-up ring and tensioner ring.The utility model ball seat adopts GradeNDivision, and the resin balls simultaneously can holding multiple different-diameter is taken a seat, and allows to carry out repeatedly ball-off, and meanwhile, the utility model structure is simple, is easy to dismounting and maintenance.
Description
Technical field
The utility model belongs to the design and manufaction technical field of construction operation equipment under oil well, and particularly one can repeatedly ball-throwing type screen casing.
Background technology
In oil well operation construction, when barefoot completion operation, needing to carry out acid fracturing and water filling to different geologic horizon to improve oil and gas production and recovery ratio etc., ensureing completion tubular column normal construction.Can effectively realizing completion practice and formation, to carry out acid fracturing be the key ensureing that oil well is normally produced, if pitching screen casing cannot normally shutoff, build the pressure, open hole packer can be caused to set, ball-throwing type screen casing cannot open normal work, then cannot realize completion practice also to carry out acid fracturing operation to this layer of position and have an impact, cause completion failure, loss is serious.
At present, conventional pitching screen casing in use, because down-hole situation is complicated, pitching screen casing drop into a numerical value ball cannot normally shutoff builds the pressure time, or when some reason causes the plugging effect of resin balls and ball seat bad, do not have follow-up means of remedying to guarantee that construction proceeds, pitching screen casing can not normal operation.
Summary of the invention
The purpose of this utility model is: carry out structural improvement to existing ball-throwing type screen casing, solve pointed by background technology, because of some reason cause resin balls damage or ball seat dam face damage, or resin beads does not normally enter ball seat, cause the plugging effect of resin balls and ball seat bad, ball-throwing type screen casing cannot build the pressure, and can not open the situation of carrying out acid fracturing operation and occur.
It is as follows that the utility model solves the problems of the technologies described above adopted technical scheme: can repeatedly ball-throwing type screen casing, and comprise screen casing top and screen casing bottom, described screen casing top and screen casing bottom are connected by the screw thread cooperatively interacted and are sealed by sealing ring; Stop collar is fixed on the step of screen casing bottom endoporus by screen casing top, and the internal diameter of stop collar is less than the step internal diameter of screen casing bottom endoporus; Sliding sleeve front portion is threaded with ball seat by what cooperatively interact and is sealed with sealing ring, is arranged in screen casing top; Sliding sleeve rear portion has and cuts off groove, aligns during installation with the hole that cuts off on screen casing top, and fixing with cutting off, and cuts off hole plug and seals; Ball seat is arranged there is flexible back-up ring and tensioner ring.
The beneficial effects of the utility model: the utility model ball seat adopts GradeNDivision, and the resin balls simultaneously can holding multiple different-diameter is taken a seat, and allows to carry out repeatedly ball-off, meanwhile, the utility model structure is simple, is easy to dismounting and maintenance.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is main TV structure cross-sectional schematic of the present utility model.
Detailed description of the invention
Embodiment 1, can repeatedly ball-throwing type screen casing, as shown in Figure 1, comprise screen casing top 1 and screen casing bottom 8, described screen casing top 1 and screen casing bottom 8 are connected by the screw thread cooperatively interacted and are sealed by sealing ring; Stop collar 9 is fixed on the step of screen casing bottom 8 endoporus by screen casing top 1, and the internal diameter of stop collar 9 is less than the step internal diameter of screen casing bottom 8 endoporus; Sliding sleeve 4 front portion is threaded with ball seat 6 by what cooperatively interact and is sealed with sealing ring, is arranged in screen casing top 1; Sliding sleeve 4 rear portion has and cuts off groove, aligns during installation with the hole that cuts off on screen casing top 1, and fixes with cutting off 3, cuts off hole plug 2 and seals; Ball seat 6 is arranged there is flexible back-up ring 5 and tensioner ring 7.
During actual use, drop into resin balls, resin balls by back-up ring, is sitting on ball seat under fluid pressure effect, blocking hydrophthalmia, and along with pressure raises, sliding sleeve is cut off and cut off, and moves right, and exposes sieve aperture.When ball seat and screen casing lower contacts, tensioner ring opens, and hangs over anti-anti-skid sheath oppositely mobile blocking sieve aperture on stop collar end face.
Claims (1)
1. can repeatedly ball-throwing type screen casing, comprise screen casing top (1) and screen casing bottom (8), it is characterized in that: described screen casing top (1) and screen casing bottom (8) are connected by the screw thread cooperatively interacted and are sealed by sealing ring; Stop collar (9) is fixed on the step of screen casing bottom (8) endoporus by screen casing top (1), and the internal diameter of stop collar (9) is less than the step internal diameter of screen casing bottom (8) endoporus; Sliding sleeve (4) front portion is threaded with ball seat (6) by what cooperatively interact and is sealed with sealing ring, is arranged in screen casing top (1); Sliding sleeve (4) rear portion has and cuts off groove, aligns during installation with the hole that cuts off of screen casing top (1), and fixes with cutting off (3), cuts off hole plug (2) sealing; Ball seat (6) is arranged there is flexible back-up ring (5) and tensioner ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420529306.1U CN204060645U (en) | 2014-09-16 | 2014-09-16 | Can repeatedly ball-throwing type screen casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420529306.1U CN204060645U (en) | 2014-09-16 | 2014-09-16 | Can repeatedly ball-throwing type screen casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204060645U true CN204060645U (en) | 2014-12-31 |
Family
ID=52202183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420529306.1U Expired - Fee Related CN204060645U (en) | 2014-09-16 | 2014-09-16 | Can repeatedly ball-throwing type screen casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204060645U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594856A (en) * | 2015-01-15 | 2015-05-06 | 新疆罡拓能源科技有限公司 | Full-diameter slide bushing sieve tube for oil and gas reservoir segmented acid fracturing |
| CN105134161A (en) * | 2015-10-12 | 2015-12-09 | 新疆罡拓能源科技有限公司 | Guide rail type intelligent sliding sleeve sieve tube tool |
| CN106609664A (en) * | 2015-12-24 | 2017-05-03 | 陕西创源石油科技有限公司 | Multifunctional pressure test ball seat for well repair |
| CN107461177A (en) * | 2017-09-04 | 2017-12-12 | 长江大学 | A kind of pressure-controlled screen hookup |
| WO2021183379A1 (en) * | 2020-03-13 | 2021-09-16 | Schlumberger Technology Corporation | System and method utilizing ball seat with locking feature |
-
2014
- 2014-09-16 CN CN201420529306.1U patent/CN204060645U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594856A (en) * | 2015-01-15 | 2015-05-06 | 新疆罡拓能源科技有限公司 | Full-diameter slide bushing sieve tube for oil and gas reservoir segmented acid fracturing |
| CN104594856B (en) * | 2015-01-15 | 2017-06-13 | 新疆罡拓能源科技有限公司 | A kind of full-bore sliding sleeve screen casing that acid fracturing is segmented for oil-gas reservoir |
| CN105134161A (en) * | 2015-10-12 | 2015-12-09 | 新疆罡拓能源科技有限公司 | Guide rail type intelligent sliding sleeve sieve tube tool |
| CN106609664A (en) * | 2015-12-24 | 2017-05-03 | 陕西创源石油科技有限公司 | Multifunctional pressure test ball seat for well repair |
| CN107461177A (en) * | 2017-09-04 | 2017-12-12 | 长江大学 | A kind of pressure-controlled screen hookup |
| WO2021183379A1 (en) * | 2020-03-13 | 2021-09-16 | Schlumberger Technology Corporation | System and method utilizing ball seat with locking feature |
| US11988054B2 (en) | 2020-03-13 | 2024-05-21 | Schlumberger Technology Corporation | System and method utilizing ball seat with locking feature |
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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 |