CN203214028U - Device for regulating and controlling flow of wet steam on ground surface of oil field - Google Patents
Device for regulating and controlling flow of wet steam on ground surface of oil field Download PDFInfo
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- CN203214028U CN203214028U CN 201320205522 CN201320205522U CN203214028U CN 203214028 U CN203214028 U CN 203214028U CN 201320205522 CN201320205522 CN 201320205522 CN 201320205522 U CN201320205522 U CN 201320205522U CN 203214028 U CN203214028 U CN 203214028U
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Abstract
The utility model discloses a device for regulating and controlling flow of wet steam on the ground surface of an oil field. The device for regulating and controlling the flow of the wet steam on the ground surface of the oil field comprises a sand settling device and a flow stabilizing tube, wherein the lower end of the sand settling device is connected with the upper end of the flow stabilizing tube; the device further comprises a flow limiting nozzle; the lower end of the flow stabilizing tube is connected with the upper end of the flow limiting nozzle; the lower end of the flow limiting nozzle is connected to a lower heat recovery clamp head through a connecting tube; the upper end of the sand settling device is connected to an upper heat recovery clamp head; a steam injection incoming pipeline is connected at the upper end of the upper heat recovery clamp head; and a downstream steam pipeline is connected at the lower end of the lower heat recovery clamp head. The device for regulating and controlling the flow of the wet steam on the ground surface of the oil field improves the heat recovery effect of an oil well, reduces invalid steam injection, reduces steam energy consumption, improves the productive capacity of a single well, can replace a steam flow regulating valve commonly installed on a ground pipe network of the oil field, can greatly enhance the regulation and distribution level of the wet steam in the heavy oil thermal recovery and exploitation process, effectively solves the technical problems in the exploitation of the oil field, and has significant advantages in technology, price and site implementation among domestic and foreign similar products.
Description
Technical field
The utility model relates to ground, oil field notes take-off line assignment of traffic technology, specifically ground, a kind of oil field wet steam flow regulation device in the heavy crude heat extraction process.
Background technology
China's heavy oil reserves is very abundant, and utilizing the exploitation via steam injection viscous crude is a kind of important method of oil recovery by heating, wherein inject the flow of steam and mass dryness fraction to oil well production increasing and increase economic efficiency play a part very important.Present on-the-spot individual well notes vapour is all regulated and control with steam injection pipe network, is subjected to the restriction of pipe network itself, and respectively annotates distribution and the adjusting that the vapour well all is difficult to be undertaken by designing requirement steam, has limited the raising of the oil field gas injection thermal efficiency greatly.
Summary of the invention
The purpose of this utility model is to provide ground, oil field wet steam flow regulation device, has improved greatly in the heavy crude heat extraction development process, and the regulation and control of moist steam and distribution level efficiently solve the technical barrier in the oil field development.
In order to reach above-mentioned purpose, the utility model has adopted following technical scheme, and ground, oil field wet steam flow regulation device comprises sand setting device, barretter, and described sand setting device lower end is connected with the upper end of barretter.
Also comprise flow limited nozzle, described barretter lower end is connected with the upper end of flow limited nozzle.
Described flow limited nozzle lower end is connected to thermal recovery lower catch hoop head by tube connector.
Described sand setting device upper end is connected to thermal recovery front band head.
Described thermal recovery front band head upper end is connected with steam injection pipeline incoming flow pipeline, and described thermal recovery lower catch hoop head lower end is connected with the downstream steam pipeline.
Compared to prior art, the utlity model has following beneficial effect:
The utility model is being investigated on the steam-separator basis of being correlated with both at home and abroad, steam flow control valve at the on-the-spot usefulness in present oil field, T type distributor, on the distribution characteristics such as ball-type distributor, development and Design novel oilfield ground wet steam flow regulation device, this device is the mass dryness fraction according to ground, oil field moist steam, pressure, parameter such as temperature and caliber is carried out structure design, the steam flow that each mouthful well of this regulation device has been installed in assurance can inject this well by design discharge, thereby improve the thermal recovery effect of oil well, reduce invalid notes vapour and saved the steam energy consumption, improved the production capacity of individual well, and can displace oil the field facial canal online generally according to steam flow control valve.Therefore, this The Application of Technology will improve in the heavy crude heat extraction development process greatly, and the regulation and control of moist steam and distribution level efficiently solve the technical barrier in the oil field development, have tangible technology, price and field conduct advantage at home and abroad in the like product.
1, flow rate adjustable scope 0t/h-23t/h; 2, pressure 0-21MPa; 3, temperature is 370 ℃; 4, the regulation and control error is less than 5%.
Description of drawings
Fig. 1 is ground, oil field of the present utility model wet steam flow regulation device structural representation.
Among the figure: 1, thermal recovery front band head; 2, sand setting device; 3, barretter; 4, flow limited nozzle; 5, tube connector; 6, thermal recovery lower catch hoop head.
The specific embodiment
Relevant detailed description of the present utility model and technology contents, conjunction with figs. is described as follows, however accompanying drawing only provides the usefulness of reference with explanation, and the utility model is limited.
With reference to accompanying drawing 1, ground, oil field wet steam flow regulation device, be connected with steam injection pipeline incoming flow pipeline above the thermal recovery front band head 1, be connected with sand setting device 2 below, sand setting device 2 back are connected with barretter 3, barretter 3 back are connected with flow limited nozzle structure 4, and flow limited nozzle structure 4 back are connected with back thermal recovery lower catch hoop head 6 by tube connector 5, and the lower catch hoop head is connected with the downstream steam pipeline.
According to the characteristic of steam-water two-phase fluid, utilize single special flow limited nozzle device, according to steam-water two phase flow theory model calculation of steam flow.Flow limited nozzle is used for the flow of limit fluid or reduces the pressure of fluid.Fluid will produce pressure by nozzle and fall, and the flow by nozzle then increases with the increase that pressure falls.Fall above certain numerical value but work as pressure, when namely falling above critical pressure, no matter how outlet pressure reduces, flow will be kept certain numerical value and no longer increase.Flow limited nozzle is exactly around this principle to be used for the flow of fluid or the pressure of reduction fluid.
The flow limited nozzle of steam is calculated as follows:
In the formula:
The weight flow of W---fluid, kg/h;
C---nozzle orifice coeficient is by Re and do/D value;
Do---nozzle minimum-value aperture, m;
D---internal diameter of the pipeline, m;
Pressure before P1---the nozzle, Pa;
P2---pressure or critical limit flowing pressure behind the nozzle got its large one, Pa;
M---molecular weight;
Z---compression coefficient is looked into gas compressibility factor figure according to fluid reduced pressure (Pr) reduced temperature Tr and is asked for;
Fluid temperature (F.T.) before T---the nozzle, K;
K---specific heat ratio, k=Cp/Cv;
CP---fluid specific heat at constant pressure, kJ/ (kgK);
CV---fluid specific heat at constant volume, kJ/ (kgK).
The above only is preferred embodiment of the present utility model, and non-in order to limit claim of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to claim of the present utility model.
Claims (5)
1. wet steam flow regulation device in ground, oil field is characterized in that, comprises sand setting device, barretter, and described sand setting device lower end is connected with the upper end of barretter.
2. ground, oil field according to claim 1 wet steam flow regulation device is characterized in that, also comprises flow limited nozzle, and described barretter lower end is connected with the upper end of flow limited nozzle.
3. ground, oil field according to claim 2 wet steam flow regulation device is characterized in that, described flow limited nozzle lower end is connected to thermal recovery lower catch hoop head by tube connector.
4. ground, oil field according to claim 3 wet steam flow regulation device is characterized in that, described sand setting device upper end is connected to thermal recovery front band head.
5. ground, oil field according to claim 4 wet steam flow regulation device is characterized in that, described thermal recovery front band head upper end is connected with steam injection pipeline incoming flow pipeline, and described thermal recovery lower catch hoop head lower end is connected with the downstream steam pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320205522 CN203214028U (en) | 2013-04-23 | 2013-04-23 | Device for regulating and controlling flow of wet steam on ground surface of oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320205522 CN203214028U (en) | 2013-04-23 | 2013-04-23 | Device for regulating and controlling flow of wet steam on ground surface of oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214028U true CN203214028U (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320205522 Expired - Fee Related CN203214028U (en) | 2013-04-23 | 2013-04-23 | Device for regulating and controlling flow of wet steam on ground surface of oil field |
Country Status (1)
| Country | Link |
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| CN (1) | CN203214028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984935A (en) * | 2019-12-12 | 2020-04-10 | 中国石油化工股份有限公司 | Intelligent steam regulation and control device for oil field ground steam injection pipe network |
-
2013
- 2013-04-23 CN CN 201320205522 patent/CN203214028U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984935A (en) * | 2019-12-12 | 2020-04-10 | 中国石油化工股份有限公司 | Intelligent steam regulation and control device for oil field ground steam injection pipe network |
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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: 20130925 Termination date: 20170423 |
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| CF01 | Termination of patent right due to non-payment of annual fee |