CN201588608U - Flow control screen pipe - Google Patents
Flow control screen pipe Download PDFInfo
- Publication number
- CN201588608U CN201588608U CN2010200467711U CN201020046771U CN201588608U CN 201588608 U CN201588608 U CN 201588608U CN 2010200467711 U CN2010200467711 U CN 2010200467711U CN 201020046771 U CN201020046771 U CN 201020046771U CN 201588608 U CN201588608 U CN 201588608U
- Authority
- CN
- China
- Prior art keywords
- parent tube
- flow
- screen casing
- spool
- control screen
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000004576 sand Substances 0.000 abstract description 13
- 239000003129 oil well Substances 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The utility model provides a flow control screen pipe, which comprises a pipeline formed by connecting a plurality of segments of screen pipes. Each screen pipe comprises a parent tube and a filter sleeve. The tube wall of each parent tube is uniformly provided with step holes communicating the inside with the outside of the parent tube. Each filter sleeve is sleeved outside the parent tube. The insides of the step holes on different screen pipes are respectively provided with valve cores with different flow specifications. On different segments of screen pipes, the parent tubes acquire the valve cores with different flow specifications which are arranged in fluid channels, so that the utility model can regulate the flow of the fluid entering the screen pipe from different segments of screen pipes when preventing sand. When working in a horizontal well, the flow control screen pipe balances liquid producing capacity of the whole horizontal well section by changing the flow used at different positions of the horizontal well section and effectively prevents from generating a gas cap and a water cone so as to obviously improve the yield of the oil well and prolong the service life of the oil well.
Description
Technical field
The utility model relates to the mechanical filter unit that is used for the horizontal well sand control in a kind of petroleum resources recovery process, relates in particular to a kind of flow-control screen casing.
Background technology
In current oil and gas industry, horizontal well and high angle hole are more and more, and particularly in the offshore oil field, the quantity of horizontal well and high angle hole occupies majority especially.In actual mining operations process, shake out along with fluid migration produces in the pit shaft for preventing reservoir sand, and then oil production equipment and ground installation are caused damage, need take the measure of sand block filtrate, need to use sand control screen.
At present usage level well sand control structure as shown in Figure 1, pipeline 9 is formed by connecting by multistage screen casing 3, screen casing 3 comprises parent tube 1 and crosses filter ruffle 2, crosses filter ruffle 2 one suits and be arranged on parent tube 1 outside.In the course of work, sand is filtered cover 2 and is blocked in the outside, and fluid entered between filter ruffle 2 and the parent tube 1 by crossing filter ruffle 2, and evenly entered in the parent tube 1 by the through hole on the parent tube 1 10.In actual job, since along pipeline 9 each section in-place permeabilities be not quite similar, suffered resistance also is not quite similar during the flow direction pit shaft heel of front and back well section output, easy formation net horizontal section heel production fluid amount height, the phenomenon that head production fluid amount is low, cause heel very easily to produce the problem of pneumatic jack and water awl, and then reduce oil well output, shortening oil well life-span, reduction recovery ratio.
The utility model content
The technical problems to be solved in the utility model provides the flow-control screen casing that a kind of effectively sand control can avoid occurring pneumatic jack, water awl problem again.
In order to address the above problem, the utility model provides a kind of flow-control screen casing, comprise the pipeline that is formed by connecting by the multistage screen casing, described screen casing comprises parent tube and crosses filter ruffle, evenly be provided with on the described parent tube tube wall and link up the inside and outside stepped hole of described parent tube, described filtration condom dress is arranged on described parent tube outside, is respectively arranged with the spool of different flow specification in the stepped hole on described different screen casings.
Further, described filter ruffle excessively is arranged on the described parent tube by fixed end, and the fixed end of described filter ruffle excessively is corresponding with described stepped hole and described spool position.
Further, described spool comprises valve seat, radially duct and axial channel,
Described valve seat outline and described stepped hole match, and inside is provided with and is used to regulate radially duct and the axial channel that enters described parent tube internal pipeline fluid flow;
Described radially duct one end is communicated with described parent tube and described passage between the filter ruffle excessively, and the other end links to each other with described axial channel;
Described axial channel one end links to each other with described radially duct, and the other end is communicated with described parent tube internal pipeline.
Further, the described fixed end of crossing filter ruffle is provided with the fixed structure that is used for dismounting and fixing described spool.
Further, described fixed structure comprises screwed hole that is arranged on the described fixed end and the jackscrew that matches with described screwed hole, and described jackscrew one end withstands described spool end, and the other end is provided with interior six side's grooves of being convenient to operate.
The utlity model has following advantage:
1, the utility model is on different section screen casings, and parent tube is gathered the spool that the different flow specification is set in the fluid passage, can regulate the flow that different sieve tube segments enter the screen casing inner fluid in sand control.When working in horizontal well, enter flow in the parent tube by changing net horizontal section diverse location place, the production fluid amount of the whole net horizontal section of balance effectively prevents the generation of pneumatic jack and water awl, and oil well output is significantly improved, and prolongs the life-span of oil well.
2, the utility model unites two into one sand control screen and flow-control measure, has reduced the production operation cost of horizontal well.
3, the utility model is simple in structure, cost of manufacture is low, convenient installation, replacing, maintainability height.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
Fig. 1 shows present usage level well sand control structural representation;
Fig. 2 shows a kind of flow-control screen construction of the utility model schematic diagram;
Fig. 3 shows the local structure for amplifying schematic diagram of a kind of flow-control screen casing of the utility model.
The specific embodiment
As Fig. 2, shown in Figure 3, the utility model comprises the pipeline 9 that is formed by connecting by multistage screen casing 3, screen casing 3 comprises parent tube 1 and crosses filter ruffle 2, evenly be provided with on the tube wall 8 of parent tube 1 and link up 1 inside and outside above stepped hole 11 of parent tube 1, cross filter ruffle 2 suits and be arranged on parent tube 1 outside, be respectively arranged with the spool 4 of different flow specification in the stepped hole 11 on different screen casings 3.
Wherein, cross filter ruffle 2 and be used to filter silt particle, parent tube 1 is used for gathering and carrying fluid.Parent tube 1 is provided with stepped hole 11, on every section screen casing 3, the spool 4 of different flow specification is set in the stepped hole 11 on parent tube 1, makes on every section screen casing 3 by crossing the flow difference that filter ruffle 2 enters parent tube 1 endoporus 7 fluids, thereby regulate whole pipe 9 each section flows.
The utility model parent tube 1 on every section screen casing 3 is gathered the spool 4 that the different flow specification is set in the fluid passage, can regulate the flow that different sieve tube segments enter the screen casing inner fluid in sand control.When working in horizontal well, enter flow in the parent tube 1 by changing net horizontal section diverse location place, the production fluid amount of the whole net horizontal section of balance effectively prevents the generation of pneumatic jack and water awl, and oil well output is significantly improved, and prolongs the life-span of oil well.
In the utility model, cross filter ruffle 2 suits and be arranged on the parent tube 1.Cross filter ruffle 2 two ends and be provided with fixed end 21, cross filter ruffle 2 and be arranged on the parent tube 1 by fixed end 21 welding, stepped hole 11 and the spool 4 that is arranged in the stepped hole 11 are corresponding one by one with fixed end 21 positions of crossing filter ruffle 2.Stepped hole 11 evenly is arranged on the parent tube 1 in every section screen casing, so that more effectively regulate the flow of the fluid that enters parent tube 1.
In the utility model, spool 4 serial flow specification differences can be arranged in the stepped hole 11.These spool 4 flow specification differences are separately positioned in the stepped hole 11 of every section screen casing 3 as required.Little near spool 4 flows that are provided with in the stepped hole 11 of heel, spool 4 flows that are provided with in the stepped hole 11 away from heel are big, thus balance heel and head flow, and it is even to make it on whole pipe 9 flow, prevents that effectively pneumatic jack and water-coning phenomena from producing.
In the utility model, spool 4 comprises valve seat 43, radially duct 41 and axial channel 42, wherein:
Radially duct 41 1 ends are communicated with parent tube 1 and cross passage 6 between the filter ruffle 2, and the other end links to each other with axial channel 42;
In the utility model, be the replacing of convenient serial different size spool 4, the fixed end 21 of crossing filter ruffle 2 is provided with fixed structure 5, and this fixed structure 5 is used for dismounting and fixed spool 4.Can in the actual job process, change spool 4 as required like this, just adjust spool 4, so that whole parent tube 1 fluid flow is even with the flow actual difference.
In the utility model, fixed structure 5 comprises screwed hole 51 that is arranged on the fixed end 21 and the jackscrew 52 that matches with screwed hole 51, and jackscrew 52 1 ends withstand spool 4 ends, and the other end is provided with interior six side's grooves 521 of being convenient to operate.
In the utility model, the end that jackscrew 52 withstands spool 4 is a sphere, to prevent the excessive damage spool 4 of jackscrew 52 strength.
The utility model unites two into one sand control screen and flow-control measure, has reduced the production operation cost of horizontal well.The utility model is simple in structure, cost of manufacture is low, convenient installation, replacing, maintainability height.
In sum; it below only is preferred embodiment of the present utility model; be not to be used to limit protection domain of the present utility model; therefore; all any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. flow-control screen casing, it is characterized in that: comprise the pipeline (9) that is formed by connecting by multistage screen casing (3), described screen casing (3) comprises parent tube (1) and crosses filter ruffle (2), evenly be provided with on described parent tube (1) tube wall (8) and link up the inside and outside stepped hole (11) of described parent tube (1), described filter ruffle (2) suit of crossing is arranged on described parent tube (1) outside, is respectively arranged with the spool (4) of different flow specification in described 2 the above stepped holes (11) on described different screen casings (3).
2. flow-control screen casing as claimed in claim 1, it is characterized in that: described filter ruffle (2) excessively is arranged on the described parent tube (1) by fixed end (21), and the fixed end (21) of described filter ruffle (2) excessively is corresponding with described stepped hole (11) and described spool (4) position.
3. flow-control screen casing as claimed in claim 2 is characterized in that: described spool (4) comprises valve seat (43), radially duct (41) and axial channel (42),
Described valve seat (43) outline and described stepped hole (11) match, and inside is provided with and is used for regulating the radially duct (41) and axial channel (42) that enters described parent tube (1) internal pipeline (7) fluid flow;
Described radially duct (41) one ends are communicated with described parent tube (1) and described passage (6) between the filter ruffle (2) excessively, and the other end links to each other with described axial channel (42);
Described axial channel (42) one ends link to each other with described radially duct (41), and the other end is communicated with described parent tube (1) internal pipeline (7).
4. flow-control screen casing as claimed in claim 3 is characterized in that: the described fixed end (21) of crossing filter ruffle (2) is provided with the fixed structure (5) that is used for dismounting and fixing described spool (4).
5. flow-control screen casing as claimed in claim 4, it is characterized in that: described fixed structure (5) comprises screwed hole (51) that is arranged on the described fixed end (21) and the jackscrew (52) that matches with described screwed hole (51), described jackscrew (52) one ends withstand described spool (4) end, and the other end is provided with interior six side's grooves (521) of being convenient to operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200467711U CN201588608U (en) | 2010-01-05 | 2010-01-05 | Flow control screen pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200467711U CN201588608U (en) | 2010-01-05 | 2010-01-05 | Flow control screen pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201588608U true CN201588608U (en) | 2010-09-22 |
Family
ID=42748387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200467711U Expired - Fee Related CN201588608U (en) | 2010-01-05 | 2010-01-05 | Flow control screen pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201588608U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155203A (en) * | 2011-03-11 | 2011-08-17 | 石云夫 | Water cone controlled parallel canal type flow controller |
| CN103352677A (en) * | 2013-07-18 | 2013-10-16 | 太仓优尼泰克精密机械有限公司 | Under-pit petroleum sand-preventing filter tube |
| CN103867181A (en) * | 2012-12-10 | 2014-06-18 | 安东柏林石油科技（北京）有限公司 | Internal sectional flow control filter |
| CN111894532A (en) * | 2020-07-23 | 2020-11-06 | 中国石油大学(华东) | Sand control screen flow control system, method, device, oil downhole drilling and production tool |
-
2010
- 2010-01-05 CN CN2010200467711U patent/CN201588608U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155203A (en) * | 2011-03-11 | 2011-08-17 | 石云夫 | Water cone controlled parallel canal type flow controller |
| WO2012122720A1 (en) * | 2011-03-11 | 2012-09-20 | Shi Yunfu | Parallel passage-typed flow controller |
| CN103867181A (en) * | 2012-12-10 | 2014-06-18 | 安东柏林石油科技（北京）有限公司 | Internal sectional flow control filter |
| CN103352677A (en) * | 2013-07-18 | 2013-10-16 | 太仓优尼泰克精密机械有限公司 | Under-pit petroleum sand-preventing filter tube |
| CN103352677B (en) * | 2013-07-18 | 2016-01-20 | 太仓优尼泰克精密机械有限公司 | A kind of downhole petroleum sand control filter pipe |
| CN111894532A (en) * | 2020-07-23 | 2020-11-06 | 中国石油大学(华东) | Sand control screen flow control system, method, device, oil downhole drilling and production tool |
| CN111894532B (en) * | 2020-07-23 | 2023-02-21 | 中国石油大学(华东) | Sand control screen pipe flow control system, method and device and petroleum underground drilling and production tool |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20180105 |