CN204782954U - Horizontal well automatic control - Google Patents
Horizontal well automatic control Download PDFInfo
- Publication number
- CN204782954U CN204782954U CN201520344624.5U CN201520344624U CN204782954U CN 204782954 U CN204782954 U CN 204782954U CN 201520344624 U CN201520344624 U CN 201520344624U CN 204782954 U CN204782954 U CN 204782954U
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- CN
- China
- Prior art keywords
- base tube
- end cover
- horizontal well
- ring cap
- exterior ring
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a horizontal well automatic control, it includes parent tube (1), parent tube (1) outside suit outer loop cover (2) screen pipe (5), installation Y type flow controller (3) between outer loop cover (2) and parent tube (1), bottom end cover (7) of Y type flow controller (3) are provided with sprue (9) and zhi liudao (11), sprue (9) and zhi liudao (11) feed through with control cavity (10) respectively, be provided with parent tube inlet (4) of nozzle (12) of intercommunication control cavity (10) on parent tube (1). The beneficial effects of the utility model are that: not having moving part, only carrying out automatic reposition of redundant personnel according to fluid nature and flow path to the profit, the output of restriction water has improved a horizontal well automatic control's reliability greatly, and the recovery ratio of the well control system reservoir that more is favorable to improving the standard is applicable to the oil well that water has been broken through.
Description
Technical field
This is suitable for and novelly relates to a kind of automatic control water instrument for oil exploitation, particularly a kind of horizontal well automatic controller.
Background technology
Horizontal well be applied in the production efficiency greatly enhancing oil well, but the problem come out also becomes increasingly conspicuous.Due to the spacing of the non-homogeneity of Reservoir Permeability, pit shaft and fluid contact level (profit and or oil gas contact) different, pit shaft through multiple different pressures oil reservoir (layer) and cause the impact with factors such as toe effects of flow difference between heel and toe, in the oil reservoir containing end water, application level well is easy to cause water to break through too early, and then has influence on the ultimate recovery of oil reservoir.In order to overcome the problem of premature water breakthrough, domesticly have employed the inflow profile that the modes such as center oil pipe, ramp metering device, water-control sieve tube, variable density perforation carry out equilibrium level well, achieve good effect, but before the mode of these level of control well inflow profiles is only applicable to horizontal well water breakthrough, and most of oil field of China all enters high water cut rate at present.The technical barrier faced for the exploitation of current China oilfield horizontal well and realistic problem, develop a kind of horizontal well automatic controller gone out for volitional check aquatic products after the water breakthrough of oil field and have important practical significance.
Utility model content
The purpose of this utility model is the shortcoming overcoming prior art, provide a kind of can distinguish fluid, restriction water output, be applicable to the horizontal well automatic controller after the water breakthrough of oil field.
The purpose of this utility model is achieved through the following technical solutions: a kind of horizontal well automatic controller, it comprises base tube, base tube outside is set with exterior ring cap and screen casing successively along vertical direction, leading portion and the base tube of exterior ring cap are welded to connect, the front end of screen casing is connected with the rear end of exterior ring cap, Y type restriction choke is installed in the gap between exterior ring cap and base tube
Described Y type restriction choke comprises upper end cover and bottom end cover, the sprue that bottom end cover is provided with inlet and is communicated with inlet, sprue be provided with the branch flow passage that is communicated with sprue and control chamber, branch flow passage guides fluid along controlling chamber Radial Flow, sprue guides fluid to move along controlling chamber slipstream, and the bottom controlling chamber is provided with the nozzle being communicated with bottom end cover and base tube; It is interference fit between upper end cover and bottom end cover; The external surface of Y type restriction choke fits tightly with the outer wall of base tube and the inwall of exterior ring cap respectively, base tube is provided with the base tube inlet of the nozzle being communicated with substrate tube space and Y type restriction choke.
Described base tube garden circumferential direction is provided with one, two, three or more Y type restriction choke.
The utility model has the following advantages:
The utility model does not have moving component, only carries out automatic shunt according to fluid properties and flow path to profit, and the output of restriction water, substantially increases a kind of reliability of horizontal well automatic controller, the recovery ratio of the well control reservoir that is more conducive to improving the standard.
The utility model is provided with Y type restriction choke in the tool, has control chamber in Y type restriction choke, and realize the output automatically regulating profit, this structure is applicable to the oil well that water has been broken through, and control water effect will be better than other control water conservancy project tools far away.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Fig. 2 is the structural representation of Y type restriction choke of the present utility model
Fig. 3 is the structural representation of Y type restriction choke bottom end cover of the present utility model
Fig. 4 is the sectional view of Fig. 2 along A-A cross section
In figure, 1-base tube, 2-exterior ring cap, 3-Y type restriction choke, 4-base tube inlet, 5-screen casing, 6-upper end cover, 7-bottom end cover, 8-inlet, 9-sprue, 10-controls chamber, 11-branch flow passage, 12-nozzle, 13-chamber.
Detailed description of the invention
Be further described the utility model below in conjunction with accompanying drawing, protection domain of the present utility model is not limited to the following stated:
As shown in Figure 1, a kind of horizontal well automatic controller, it comprises base tube 1, base tube 1 outside is set with exterior ring cap 2 and screen casing 5 successively along vertical direction, in this enforcement, exterior ring cap 2 and base tube 1 are welded to connect, and the front end of screen casing 5 is connected with the rear end of exterior ring cap 2, is provided with Y type restriction choke 3 in the gap between exterior ring cap 2 and base tube 1.
As shown in Figure 2, Figure 3, Figure 4, described Y type restriction choke 3 comprises upper end cover 6 and bottom end cover 7, the sprue 9 that bottom end cover 7 is provided with inlet 8 and is communicated with inlet 8, sprue 9 be provided with the branch flow passage 11 that is communicated with sprue 9 and control chamber 10, branch flow passage 11 guides fluid along controlling chamber 10 Radial Flow, sprue 9 guides fluid tangentially to flow along controlling chamber 10, the bottom of described control chamber 10 is provided with the nozzle 12 being communicated with and controlling chamber 10 and base tube 1, nozzle 12 runs through bottom end cover 7, is communicated with the space outerpace of bottom end cover 7 and controls chamber 10; Upper end cover 6 is covered in the top of bottom end cover 7, and be interference fit between upper end cover 6 and bottom end cover 7, good seal between upper end cover 6 and bottom end cover 7, thus make sprue 9 by means of only inlet 8 with ft connection, control chamber 10 by means of only nozzle 12 and ft connection.
As shown in Figure 1, fit tightly between the external surface of the bottom end cover 7 of Y type restriction choke 3 and the outer wall of base tube 1, ensure excellent sealing; The external surface of the upper end cover 6 of Y type restriction choke 3 and the inwall of exterior ring cap 2 fit tightly, and ensure excellent sealing; Base tube 1 is provided with the base tube inlet 4 of the nozzle 12 being communicated with base tube 1 inner space and Y type restriction choke 3.
Along base tube 1 circumferencial direction, one, two, three or more Y type restriction choke 3 are installed in gap between exterior ring cap 2 and base tube 1.
The rear end of described exterior ring cap 2 is provided with the groove for installing screen casing 5, and the front end of screen casing 4 is installed in the groove of exterior ring cap 2 rear end.
Exterior ring cap 2 and Y type restriction choke 3, base tube 1, screen casing 5 surround chamber 13.
As shown in Figure 2 and Figure 3, described bottom end cover 7 is provided with the both sides that two inlets, 8, two inlets 8 are divided into bottom end cover 7.
The course of work of the present utility model is as follows: reservoir fluid enters sprue 9 from the inlet 8 of Y type restriction choke 3 after flowing into chamber 13 by screen casing 4 again, the oil that viscosity is high is entered by the branch flow passage 11 be communicated with sprue 9 and controls chamber 12, then by directly flowing into base tube 1 by base tube inlet 4 after nozzle 8 throttling, oil control chamber 12 in without spin, the pressure drop produced is little, low viscous water then tangentially enters from sprue 9 along control chamber 12 and controls chamber 12, multiple rotary in control chamber 12, form high flow rate and produce high pressure drop, base tube 1 is flowed into from base tube inlet 4 again after nozzle 8 throttling.Therefore, the resistance ratios oil that water flows through a kind of horizontal well automatic controller flows through a kind of resistance of horizontal well automatic controller greatly, and a kind of horizontal well automatic controller limits the output of water.
Claims (4)
1. a horizontal well automatic controller, it is characterized in that: it comprises base tube (1), base tube (1) outside is set with exterior ring cap (2) and screen casing (5) successively along vertical direction, in this enforcement, exterior ring cap (2) and base tube (1) are welded to connect, the front end of screen casing (5) is connected with the rear end of exterior ring cap (2), Y type restriction choke (3) is installed in the gap between exterior ring cap (2) and base tube (1), described Y type restriction choke (3) comprises upper end cover (6) and bottom end cover (7), the sprue (9) that bottom end cover (7) is provided with inlet (8) and is communicated with inlet (8), sprue (9) be provided with the branch flow passage (11) that is communicated with sprue (9) and control chamber (10), the bottom controlling chamber (10) is provided with the nozzle (12) being communicated with and controlling chamber (10) and base tube (1), be interference fit between upper end cover (6) and bottom end cover (7), Y type restriction choke (3) external surface fit tightly with the outer wall of base tube (1) and the inwall of exterior ring cap (2) respectively, base tube (1) is provided with the base tube inlet (4) of the nozzle (12) being communicated with base tube (1) inner space and Y type restriction choke (3).
2. a kind of horizontal well automatic controller according to claim 1, is characterized in that: be provided with one, two, three or more Y type restriction choke (3) along base tube (1) circumferencial direction in the gap between described exterior ring cap (2) and base tube (1).
3. a kind of horizontal well automatic controller according to claim 1, is characterized in that: adopt between described exterior ring cap (2) and base tube (1) and be welded to connect.
4. a kind of horizontal well automatic controller according to claim 1, it is characterized in that: described bottom end cover (7) is provided with two inlets (8), and two inlets (8) are divided into the both sides of bottom end cover (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344624.5U CN204782954U (en) | 2015-05-26 | 2015-05-26 | Horizontal well automatic control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520344624.5U CN204782954U (en) | 2015-05-26 | 2015-05-26 | Horizontal well automatic control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204782954U true CN204782954U (en) | 2015-11-18 |
Family
ID=54523022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520344624.5U Expired - Fee Related CN204782954U (en) | 2015-05-26 | 2015-05-26 | Horizontal well automatic control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204782954U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285560A (en) * | 2016-09-06 | 2017-01-04 | 中国海洋石油总公司 | It is applied to flow control valve and the horizontal well of horizontal well |
| CN112796732A (en) * | 2021-01-29 | 2021-05-14 | 西南石油大学 | Novel liquid is controlled mutually to horizontal well intelligence branch device |
| CN112855076A (en) * | 2021-01-20 | 2021-05-28 | 西南石油大学 | Multi-stage flow-dividing water control valve at bottom of well |
| CN113062711A (en) * | 2021-04-07 | 2021-07-02 | 西南石油大学 | Multi-runner rotational flow automatic liquid control device |
-
2015
- 2015-05-26 CN CN201520344624.5U patent/CN204782954U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285560A (en) * | 2016-09-06 | 2017-01-04 | 中国海洋石油总公司 | It is applied to flow control valve and the horizontal well of horizontal well |
| CN112855076A (en) * | 2021-01-20 | 2021-05-28 | 西南石油大学 | Multi-stage flow-dividing water control valve at bottom of well |
| CN112855076B (en) * | 2021-01-20 | 2022-05-03 | 西南石油大学 | Multi-stage flow-dividing water control valve at bottom of well |
| CN112796732A (en) * | 2021-01-29 | 2021-05-14 | 西南石油大学 | Novel liquid is controlled mutually to horizontal well intelligence branch device |
| CN112796732B (en) * | 2021-01-29 | 2022-04-12 | 西南石油大学 | Novel liquid is controlled mutually to horizontal well intelligence branch device |
| CN113062711A (en) * | 2021-04-07 | 2021-07-02 | 西南石油大学 | Multi-runner rotational flow automatic liquid control device |
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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: 20151118 Termination date: 20180526 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |