CN201152165Y - Compound type sand-setting uniflow valve - Google Patents
Compound type sand-setting uniflow valve Download PDFInfo
- Publication number
- CN201152165Y CN201152165Y CNU2008200161751U CN200820016175U CN201152165Y CN 201152165 Y CN201152165 Y CN 201152165Y CN U2008200161751 U CNU2008200161751 U CN U2008200161751U CN 200820016175 U CN200820016175 U CN 200820016175U CN 201152165 Y CN201152165 Y CN 201152165Y
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- China
- Prior art keywords
- sand setting
- sand
- seat
- valve
- central tube
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- Expired - Fee Related
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Abstract
The utility model discloses a duplex sand settling inverted valve used in petroleum industry and is suitable for electric submersible pump oil production wells. The inverted valve comprises an upper contact, a first sand settling mechanism and a second sand settling mechanism which are connected together through the outer casing of a central tube; thus, two sand settling chambers are formed and the effect of sand settling is improved. After the sand blocking and settling of two sets of sand settling mechanisms, the sand content of the oil passing through the inverted valve is largely reduced; so the damage to the electric submersible pump caused by sand is reduced; the service life of the electric submersible pump is increased; the pump operation test period of the electric submersible pump oil production well is prolonged and economic efficiency is improved.
Description
Technical field
The utility model belongs to the oil production equipment of petroleum industry, and particularly compound sand setting ball-and-seat is applicable to the electric submersible pumping well.
Background technology
During petroleum industry is recovered the oil on-the-spot electric submersible pumping well at present, the sand setting ball-and-seat usually is installed above the electric pump unit, the gravel in the fluid is deposited in the ball-and-seat, avoid gravel to fall into the electric pump unit and cause damage in order to protect the electric pump unit.And there is following shortcoming in the sand setting ball-and-seat that uses at present: because the bottom use is ball formula ball-and-seat, the contact surface of single current ball valve and ball seat is less, and when the gravel in the manufacturing process sticked on ball seat and the ball valve, ball-and-seat lost efficacy easily.Moreover when precipitating a certain amount of gravel in the sand setting chamber, ball formula ball-and-seat is operated in the environment that is full of gravel, and ball-and-seat also loses check action easily.When ball-and-seat is ineffective, its sand setting effect also just all loses, gravel in the flow string will all be sunken on the electric pump unit of bottom, cause sand to bury unit or when oil well stops well, cause flow string leakage, thereby production well is stopped production, cause workover treatment, increase the cost of production of crude oil.
Summary of the invention
The purpose of this utility model provides compound sand setting ball-and-seat, improves the sand setting structure, strengthens the sand setting effect, prolongs the application life of electric submersible pump, increases economic efficiency.
For reaching above-mentioned purpose, can use the present technique solution: compound sand setting ball-and-seat comprises top connection, and this device is provided with sand setting mechanism and secondary sand setting mechanism, by the central tube overcoat sand setting mechanism and secondary sand setting mechanism is linked together, form two sand setting chambeies, improve the sand setting effect.
Compared with prior art, the utlity model has following obvious effects: the utlity model has two cover sand setting mechanism and two sand setting chambeies, the structure of two cover sand setting mechanism sand setting valves all helps staying sand and sand setting.Filter sand seam on the central tube body can be crisscross arranged, promptly helping fluid passes through, again can be outside pipe with short grained gravel retaining, after the sand block and sand setting through two cover sand setting mechanisms, make by the silt carrying capacity in the fluid of the present utility model to significantly reduce, reduced the infringement of gravel, the application life of having improved electric submersible pump electric submersible pump, prolong the pump detection and workover cycle of electric submersible pumping well, significantly improved economic benefit.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with embodiment the utility model is done further detailed description: referring to accompanying drawing, compound sand setting ball-and-seat comprises top connection 1, be provided with sand setting mechanism and secondary sand setting mechanism, sand setting mechanism and secondary sand setting mechanism linked together, form two sand setting chambeies by central tube overcoat 7.One time sand setting mechanism comprises sand setting valve, down conversion joint 9, lower limit baffle ring 11 and central tube overcoat 7 one time, sand setting valve and lower limit baffle ring 11 are installed in the down conversion joint 9, lower limit baffle ring 11 is provided with the top that fluid course is installed in a sand setting valve, down conversion joint 9 is connected with central tube overcoat 7, forms first sand setting chamber.One time the sand setting valve comprises tapered valve seat 13 and matrix spool 12, and the interior round top of tapered valve seat 13 is tapered, cooperates with the top cylindrical of matrix spool 12; The top of matrix spool 12 is provided with concave surface, has sand block and stays the effect of sand.Secondary sand setting mechanism comprises top connection 1, secondary sand setting valve, up conversion joint 5, central tube 6 and plug 10, secondary sand setting valve is installed in the top connection 1, plug 10 is located at the bottom of central tube 6, by up conversion joint 5 top connection 1, central tube 6 and central tube overcoat 7 are connected, form second sand setting chamber.Secondary sand setting valve comprises umbellate form valve seat 4, umbellate form spool 3 and upper limit baffle ring 2, and upper limit baffle ring 2 is installed in the top of umbellate form spool 3, is equipped with fluid course on the seat surface of umbellate form valve seat 4 and the upper limit baffle ring 2.The core handle of umbellate form spool 3 is installed in the centre bore of umbellate form valve seat 4, and its core face cooperates with the seat surface of umbellate form valve seat 4.The tapered sand setting of being convenient in being on the interior circle of central tube 6, body is provided with filter sand seam 8, and the bottom is by plug 10 sealings, and filter sand seam 8 interlocks or be arranged in parallel.
During use, this device is connected the correct position of electric immersible pump well electric pump unit top flow string with top connection 1 and lower contact 15, between lower contact 15 and down conversion joint 9, installs sealing ring 14 additional.Also can not use lower contact 15, can the cylindrical of down conversion joint 9 processing screw thread directly be connected by down conversion joint 9.When producing fluid when the below enters the utility model, fluid at first backs down the matrix spool 12 in the down conversion joint 9, and fluid enters in the first sand setting chamber between central tube 6 and the central tube overcoat 7.Fluid also because matrix spool 12 tops are concave surfaces, have certain sand block and stays the sand effect through the filter sand effect of filter sand seam 8, and gravel retaining thicker in the fluid in the first sand setting chamber, is played sand setting check action for the first time.It is up that fluid behind the filter sand enters central tube 6 back continuation, and the umbrella shape spool 3 that backs down in the top connection 1 enters in the flow string.After gravel thinner in the fluid gathers to a certain degree, sink to once more in the central tube 6 by umbrella shape spool 3, play sand setting check action for the second time.Therefore, in application process, whole compound sand setting ball-and-seat has two ball-and-seats up and down, and the sand setting process is arranged twice, effectively the gravel in the fluid is deposited in the utility model the electric pump unit of protection below.Gravel in the utility model is along with the passing of service time can be gathered too much, can be in electric immersible pump well workover treatment each time, no matter the workover treatment of what reason is casual inspection the utility model all, the gravel that gathers is wherein poured out convenient use later on.
Claims (8)
1, compound sand setting ball-and-seat comprises top connection (1), it is characterized in that this device is provided with sand setting mechanism and secondary sand setting mechanism, by central tube overcoat (7) sand setting mechanism and secondary sand setting mechanism is linked together.
2, compound sand setting ball-and-seat according to claim 1, it is characterized in that a sand setting mechanism comprises sand setting valve, down conversion joint (9), lower limit baffle ring (11) and central tube overcoat (7) one time, sand setting valve and lower limit baffle ring (11) are installed in the down conversion joint (9), lower limit baffle ring (11) is provided with the top that fluid course is installed in a sand setting valve, and down conversion joint (9) is connected with central tube overcoat (7).
3, compound sand setting ball-and-seat according to claim 2 is characterized in that a sand setting valve comprises tapered valve seat (13) and matrix spool (12), and the interior round top of tapered valve seat (13) is tapered, cooperates with the top cylindrical of matrix spool (12); The top of matrix spool (12) is provided with concave surface.
4, compound sand setting ball-and-seat according to claim 1, it is characterized in that secondary sand setting mechanism comprises top connection (1), secondary sand setting valve, up conversion joint (5), central tube (6) and plug (10), secondary sand setting valve is installed in the top connection (1), plug (10) is located at the bottom of central tube (6), by up conversion joint (5) top connection (1), central tube (6) and central tube overcoat (7) is connected.
5, compound sand setting ball-and-seat according to claim 4, it is characterized in that secondary sand setting valve comprises umbellate form valve seat (4), umbellate form spool (3) and upper limit baffle ring (2), upper limit baffle ring (2) is installed in the top of umbellate form spool (3), is equipped with fluid course on the seat surface of umbellate form valve seat (4) and the upper limit baffle ring (2).
6, compound sand setting ball-and-seat according to claim 5 is characterized in that the core handle of umbellate form spool (3) is installed in the centre bore of umbellate form valve seat (4), and its core face cooperates with the seat surface of umbellate form valve seat (4).
7, compound sand setting ball-and-seat according to claim 4 is characterized in that the interior circle upper end of central tube (6) is interior tapered, and body is provided with filter sand seam (8).
8, compound sand setting ball-and-seat according to claim 1 is characterized in that sand setting mechanism and secondary sand setting mechanism are joined together to form two sand setting chambeies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200161751U CN201152165Y (en) | 2008-01-11 | 2008-01-11 | Compound type sand-setting uniflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200161751U CN201152165Y (en) | 2008-01-11 | 2008-01-11 | Compound type sand-setting uniflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201152165Y true CN201152165Y (en) | 2008-11-19 |
Family
ID=40127844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200161751U Expired - Fee Related CN201152165Y (en) | 2008-01-11 | 2008-01-11 | Compound type sand-setting uniflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201152165Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334919A (en) * | 2012-06-04 | 2013-10-02 | 中国石油化工股份有限公司江苏油田分公司 | Triple-channel sand prevention fixing valve |
| US10947813B2 (en) | 2018-07-30 | 2021-03-16 | Saudi Arabian Oil Company | Systems and methods for preventing sand accumulation in inverted electric submersible pump |
| CN113700454A (en) * | 2020-05-22 | 2021-11-26 | 中国石油化工股份有限公司 | New-type sand setting bottom screen is stifled |
| WO2022099726A1 (en) * | 2020-11-16 | 2022-05-19 | 东营百华石油技术开发有限公司 | Sand settling device and method |
-
2008
- 2008-01-11 CN CNU2008200161751U patent/CN201152165Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334919A (en) * | 2012-06-04 | 2013-10-02 | 中国石油化工股份有限公司江苏油田分公司 | Triple-channel sand prevention fixing valve |
| CN103334919B (en) * | 2012-06-04 | 2016-03-30 | 中国石油化工股份有限公司江苏油田分公司 | Triple channel sand prevention standing valve |
| US10947813B2 (en) | 2018-07-30 | 2021-03-16 | Saudi Arabian Oil Company | Systems and methods for preventing sand accumulation in inverted electric submersible pump |
| CN113700454A (en) * | 2020-05-22 | 2021-11-26 | 中国石油化工股份有限公司 | New-type sand setting bottom screen is stifled |
| WO2022099726A1 (en) * | 2020-11-16 | 2022-05-19 | 东营百华石油技术开发有限公司 | Sand settling device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20100211 |