CN200982162Y - Stratified test sand control pipe - Google Patents
Stratified test sand control pipe Download PDFInfo
- Publication number
- CN200982162Y CN200982162Y CNU2006201609554U CN200620160955U CN200982162Y CN 200982162 Y CN200982162 Y CN 200982162Y CN U2006201609554 U CNU2006201609554 U CN U2006201609554U CN 200620160955 U CN200620160955 U CN 200620160955U CN 200982162 Y CN200982162 Y CN 200982162Y
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- CN
- China
- Prior art keywords
- double wall
- intelligent switch
- packer
- sand
- 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
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Abstract
The utility model discloses an oil industry layered test anti-sand pipe column which is used for the production and test of the oil well, in particular to the sand producer of a plurality of oil layers loose sand. The utility model comprises a top hold-down packer, a sand shaker and an interlamination packer, wherein a double wall circulation unit is connected between the top hold-down releasing packer and the interlamination packer, the upper layer double wall circulation unit is provided with an intelligent switch, and the lower layer double wall circulation unit is provided with a straight hole intelligent switch. The pipe column can realize the suspension, stop and anchoring, and releasing functions. The interlamination packer is used to detach the oil layers, and every layer forms a separate double wall circulation unit. The next pipe column can solve the production and test problems, and has the important meaning for the rational development and production of the oil field subdivision layer, and the develop of the water injection work.
Description
Technical field
The utility model belongs to the underground equipment of oil exploitation, and especially a kind of zonal testing sand control pipe is used for the production and the test of oil well, is specially adapted to the loose sand sand well of a plurality of oil reservoirs.
Background technology
At present, petroleum industry is only limited to simple test to the measuring technology of production well, and just the test test string is produced and used flow string.Can not put into production after finishing with test string test, must trip out test string, and then be lowered to flow string.The process complexity, the cost of production height.If perforation of a plurality of oil reservoirs, exploitation only descends one-trip string just can find out the strata condition of each substratum simultaneously, comprises parameters such as strata pressure, hydrocarbon saturation and production fluid amount, produces with this tubing string with that, then can significantly reduce production costs.On-the-spot need this technology and the tubing string of can zonal testing again can sand control producing, particularly, need especially for the loose sand sand well of a plurality of oil reservoirs.
Summary of the invention
The purpose of this utility model provides a kind of zonal testing sand control pipe, at the loose sand sand well of a plurality of oil reservoirs, makes perforation of its a plurality of oil reservoirs, is lowered to one-trip string and just can tests and produce.Reduce production costs, enhance productivity.
The present technique solution can reach above-mentioned purpose: a kind of zonal testing sand control pipe, comprise top hanging packer, sand screen and interlayer packer, what connect between top suspension back-off packer and interlayer packer is the double wall flow-through cell, intelligent switch is installed in the double wall flow-through cell on upper strata, straight hole is installed in the double wall flow-through cell of bottom to intelligent switch.
The utlity model has following useful effect: this tubing string can divide a plurality of oil reservoirs, and tubing string top is connected to the top and hangs back-off packer, can realize suspension, packing grappling and the function of giving up of tubing string.With the interlayer packer separately, the middle sand screen of installing is the double wall sand screen, makes independently double wall flow-through cell of each layer formation one between each oil reservoir.There is an intelligent switch by microcomputerized control each unit, in order to control the opening and closing of each layer.To some loose sand oil reservoir that shakes out more serious, be equipped with sand-preventing process again, can reach the purpose that can test and can sand control produce.Have great importance for the reasonable development of oil field segmentation series of strata and production and carrying out of water filling work, can significantly reduce production costs simultaneously.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Among the figure: pipe 6, sealing intubate 7, interlayer packer 8, straight hole are to intelligent switch 9, ball seat outer tube 10, ball seat piston 11, shear pin 12, following sand screen 13 in top suspension back-off packer 1, intelligent switch 2, outer tube 3, side opening 4, sand screen 5, the connection.
The specific embodiment
Below in conjunction with embodiment the utility model is done further detailed description: a kind of zonal testing sand control pipe, comprise that the top hangs back-off packer 1, sand screen 5 and interlayer packer 8, what connect between top hanging packer 1 and interlayer packer 8 is the double wall flow-through cell, intelligent switch 2 is installed in the double wall flow-through cell on upper strata, straight hole is installed in the double wall flow-through cell of bottom to intelligent switch 9.Intelligent switch 2 and straight hole are micro motor clock switches by microcomputerized control to intelligent switch 9, the inside is equipped with the sealing high-efficiency battery, on the ground time-program(me) is pre-set before the use, promptly move after being lowered to the stratum at official hour inner microcomputer indication micro machine, micro machine by transmission mechanism with the switch folding, the side opening 4 of opening and closing intelligent switch 2 and straight hole are to the straight hole of intelligent switch 9, to reach the purpose that realizes producing a certain oil reservoir or bottom oil layer.The double wall flow-through cell on upper strata comprises intelligent switch 2, outer tube 3, sand screen 5, connects interior pipe 6, seals intubate 7.Intelligent switch 2 external outer tubes 3, outer tube 3 connects sand screen 5, and sand screen 5 is double wall sand screens.Pipe 6 in connecing in succession in the intelligent switch 2, pipe connects sealing intubate 7 for 6 times in connecting.Also sealing in the undergauge inner chamber of sealing intubate 7 insertion sand screens 5 bottoms.So form the double wall flow-through cell of a sealing, separate by top suspension back-off packer 1 and 8 sealings of interlayer packer between the oil reservoir.The oil of oil reservoir filters through sand screen 5, the double wall flow-through cell that inflow is formed by sand screen 5 and interior pipe 6, sealing intubate 7, and flowing into pit shafts by the side opening 4 of intelligent switch 2, the side opening 4 of opening and closing intelligent switch 2 controls can this oil reservoir of opening and closing, controls its production.
The double wall flow-through cell of bottom comprises that straight hole is to intelligent switch 9, ball seat outer tube 10, ball seat piston 11, following sand screen 13 and plug.Ball seat piston 11 is installed in the ball seat outer tube 10, and straight hole is connected with plug successively to intelligent switch 9, ball seat outer tube 10, following sand screen 13.Ball seat piston 11 is fixed in the ball seat outer tube 10 by shear pin 12.Determine the number of the double wall flow-through cell on upper strata according to the layering number of plies of oil reservoir, separate by interlayer packer 8.For example: the oil reservoir of layering is five layers, then needs four upper strata double wall flow-through cells and a bottom double wall flow-through cell, and each unit is corresponding with each oil reservoir.What accompanying drawing was represented is the tubular column structure of two layers of branches.
Connect by above structure during application, this tubing string is used aligning oil reservoir position in the oil pipe lower going-into-well, suppress power from oil pipe with filling water in this tubing string, the cylinder port that fluid power hangs back-off packer 1 and interlayer packer 8 by the top promotes that its fluid cylinder hangs back-off packer 1 with the top and interlayer packer 8 sets.Pressure raises again, and the shear pin 12 of fixed ball seat piston 11 is cut off, and ball seat piston 11 is fallen down in the plug of sand screen 13 bottoms, and tubing string rushes down pressure.Just changeing oil pipe, the top is being hung back-off packer 1 give up, proposing gives up gets final product completion.By the intelligent control program that mixes up on ground, from bottom to top successively produce and test all oil reservoirs.After test was finished, all intelligent switch 2 and straight holes were opened simultaneously to intelligent switch 9, and full well is produced.Concrete operations are as follows: during beginning, at open position, the intelligent switch 2 on upper strata is in closed condition to the straight hole that is positioned at bottom to intelligent switch 9.Bottom oil layer is produced, and is lowered to tester, bottom oil layer is carried out the test of various parameters.Press setting in advance after having surveyed, the straight hole of bottom is closed automatically to intelligent switch 9.The intelligent switch 2 of its last layer is opened automatically, and the oil reservoir production of last layer is lowered to tester, simultaneously the last layer oil reservoir is tested.After test was finished, intelligent switch 2 was closed automatically, so successively produces and tests.After all oil reservoir tests were finished, the intelligent switch 2 and the straight hole of corresponding all oil reservoirs were opened simultaneously to intelligent switch 9, full well production.
Claims (6)
1, a kind of zonal testing sand control pipe, comprise that the top hangs back-off packer (1), sand screen (5) and interlayer packer (8), what it is characterized in that between top hanging packer (1) and interlayer packer (8) connecting is the double wall flow-through cell, intelligent switch (2) is installed in the double wall flow-through cell on upper strata, straight hole is installed in the double wall flow-through cell of bottom to intelligent switch (9).
2, a kind of zonal testing sand control pipe according to claim 1, the double wall flow-through cell that it is characterized in that the upper strata comprises intelligent switch (2), outer tube (3), sand screen (5), connects interior pipe (6), seals intubate (7), the external outer tube of intelligent switch (2) (3), outer tube (3) connects sand screen (5); Connect interior pipe (6) in the intelligent switch (2) in succession, connect sealing intubate (7) in connecting under the pipe (6), seal intubate (7) and insert in the undergauge inner chamber of sand screen (5) bottom and sealing.
3, a kind of zonal testing sand control pipe according to claim 2 is characterized in that intelligent switch (2) is provided with side opening (4), and sand screen (5) is the double wall sand screen.
4, a kind of zonal testing sand control pipe according to claim 1, the double wall flow-through cell that it is characterized in that bottom comprises that straight hole is to intelligent switch (9), ball seat outer tube (10), ball seat piston (11), following sand screen (13) and plug, ball seat piston (11) is installed in the ball seat outer tube (10), and straight hole is connected with plug successively to intelligent switch (9), ball seat outer tube (10), following sand screen (13).
5, a kind of zonal testing sand control pipe according to claim 4 is characterized in that ball seat piston (11) is fixed in the ball seat outer tube (10) by shear pin (12).
6, a kind of zonal testing sand control pipe according to claim 1 is characterized in that the number of the double wall flow-through cell on upper strata is determined according to the layering number of plies of oil reservoir, is separated by interlayer packer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201609554U CN200982162Y (en) | 2006-11-24 | 2006-11-24 | Stratified test sand control pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201609554U CN200982162Y (en) | 2006-11-24 | 2006-11-24 | Stratified test sand control pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200982162Y true CN200982162Y (en) | 2007-11-28 |
Family
ID=38909322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201609554U Expired - Fee Related CN200982162Y (en) | 2006-11-24 | 2006-11-24 | Stratified test sand control pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200982162Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425404A (en) * | 2011-09-23 | 2012-04-25 | 陈爱民 | Method for realizing layered pressure detecting and layered productivity testing in oil well |
| CN104695914A (en) * | 2013-12-09 | 2015-06-10 | 中国石油化工股份有限公司 | Sand control string for sectional high-pressure packing in pipe of horizontal well |
| CN110700802A (en) * | 2017-10-16 | 2020-01-17 | 高瑞民 | Construction method of petroleum well repairing tool |
| CN112377170A (en) * | 2021-01-08 | 2021-02-19 | 中国石油大学胜利学院 | Sand control well oil reservoir testing device |
-
2006
- 2006-11-24 CN CNU2006201609554U patent/CN200982162Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425404A (en) * | 2011-09-23 | 2012-04-25 | 陈爱民 | Method for realizing layered pressure detecting and layered productivity testing in oil well |
| CN104695914A (en) * | 2013-12-09 | 2015-06-10 | 中国石油化工股份有限公司 | Sand control string for sectional high-pressure packing in pipe of horizontal well |
| CN104695914B (en) * | 2013-12-09 | 2018-12-04 | 中国石油化工股份有限公司 | High-pressure packing sand-control tubing string is segmented in horizontal well tube |
| CN110700802A (en) * | 2017-10-16 | 2020-01-17 | 高瑞民 | Construction method of petroleum well repairing tool |
| CN112377170A (en) * | 2021-01-08 | 2021-02-19 | 中国石油大学胜利学院 | Sand control well oil reservoir testing device |
| CN112377170B (en) * | 2021-01-08 | 2021-03-26 | 中国石油大学胜利学院 | Sand control well oil reservoir testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |