CN201885756U - Differential pressure type crude oil production volume metering device - Google Patents
Differential pressure type crude oil production volume metering device Download PDFInfo
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- CN201885756U CN201885756U CN2010206321681U CN201020632168U CN201885756U CN 201885756 U CN201885756 U CN 201885756U CN 2010206321681 U CN2010206321681 U CN 2010206321681U CN 201020632168 U CN201020632168 U CN 201020632168U CN 201885756 U CN201885756 U CN 201885756U
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- liquid level
- level meter
- differential pressure
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Abstract
The utility model discloses a differential pressure type crude oil production volume metering device, belonging to the field of production volume metering in an oil well. The differential pressure type crude oil production volume metering device comprises an oil-gas metering separator body; a bottom water area and a crude oil outlet pipe are arranged at the bottom of the body; a gas outlet pipe is arranged at the top of the body; a glass pipe liquid level meter is arranged on the body; the upper end of the glass pipe liquid level meter is communicated with a cavity above raw oil in the body, and the lower end of the glass pipe liquid level meter is communicated with the bottom water area; the body is provided with a gas-liquid mixture inlet that is located above the glass pipe liquid level meter; a first pressure sensor is arranged between the communication position of the cavity and the glass pipe liquid level meter and the glass pipe liquid level meter; a second pressure sensor is arranged between the communication position of the bottom water area and the glass pipe liquid level meter and the glass pipe liquid level meter; the first sensor and the second pressure sensor are both connected with the input end of a differential pressure transmitter; and the output end of the differential pressure transmitter is connected with the input end of a controller. With the metering device, the differential pressure of liquid at different time periods is used for calculating crude oil production volume and is not influenced by factors such as bottom water density, so that the calculation result is accurate; data is transmitted by the pressure sensors and the differential pressure transmitter, so that the manual metering is not needed, and no artificial reading errors exist, therefore, the accuracy and reliability of the metering result can be further ensured, and human resources can be saved.
Description
Technical field
The utility model relates to the production metering of oil wells field, particularly a kind of oil well output self-measuring device.
Background technology
The metering of oil well crude production rate is an important step of crude production.
In existing crude oil measurement technology, when low and gas liquid ratio is higher when oilwell produced fluid amount, adopt oil gas metering separation vessel metering crude production rate more.What use was more in the oil gas metering separation vessel is the glass tube oil gauge form, promptly reads the altitude scale of glass-tube liquid level meter by artificial timing, the record difference in height, thus calculate oil offtake.
In realizing process of the present utility model, the inventor finds that there is following problem at least in prior art: glass tube oil gauge is a human metering, can't realize real time measure, and a large amount of waste of human resource have been caused, human metering exists artificial reading error and end water-mass density error simultaneously, causes the inaccurate problem of continuous data easily.
The utility model content
The utility model is in order to solve the deficiencies in the prior art, a kind of differential pressure type crude production rate measuring apparatus is provided, described measuring apparatus is measured crude production rate by differential pressure, be not subjected to the influence of factors such as end water-mass density and pressure surge, and need not human metering, do not have artificial reading error, save human resources.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of differential pressure type crude production rate measuring apparatus, comprise oil gas metering separation vessel body, the bottom of described body is provided with pool, the end and crude exports pipe, the top of described body is provided with gas outlet tube, described body is provided with glass-tube liquid level meter, the upper end of described glass-tube liquid level meter is communicated with the cavity of crude oil top in the described body, the lower end of described glass-tube liquid level meter is communicated with pool, the end, described body is provided with the gas-liquid mixture import, described gas-liquid mixture import is positioned at described glass-tube liquid level meter top, described cavity is provided with first pressure transducer with being communicated with between place and the described glass-tube liquid level meter of described glass-tube liquid level meter, pool, the described end is provided with second pressure transducer with being communicated with between place and the described glass-tube liquid level meter of described glass-tube liquid level meter, described first pressure transducer all links to each other with the input end of differential pressure transmitter with described second pressure transducer, and the output terminal of described differential pressure transmitter links to each other with the input end of controller.
Described cavity is provided with first damper with being communicated with between place and described first pressure transducer of described glass-tube liquid level meter, and pool, the described end is provided with second damper with being communicated with between place and described second pressure transducer of described glass-tube liquid level meter.
Described gas outlet tube is provided with first electrically operated valve, and described crude exports pipe is provided with second electrically operated valve, and the input end of the input end of described first electrically operated valve and described second electrically operated valve all is connected with the output terminal of described controller.
Described gas outlet tube also is provided with gas meter, and described gas meter is connected with the input end of described controller.
The beneficial effect of the technical scheme that the utility model embodiment provides is: measure crude production rate by the differential pressure that different time sections crude oil produces, be not subjected to the influence of factors such as end water-mass density, and need not human metering, do not have artificial reading error, the metering result saves human resources accurately and reliably.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, to do one to the accompanying drawing that uses among the embodiment below introduces simply, apparently, below listed accompanying drawing only be embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the differential pressure type crude production rate measuring apparatus synoptic diagram that the utility model embodiment provides.
In the accompanying drawing, the component list of each label representative is as follows:
1, oil gas metering separation vessel body, 2, Di Shui, 3, crude oil, 4, separate umbrella, 5, hide oil baffle, 6, gas meter, 7, first electrically operated valve, 8, gas outlet tube, 9, the import of output liquid, 10, first damper;
11, first pressure transducer, 12, glass-tube liquid level meter, 13, controller, 14, computing machine, 15, differential pressure transmitter, 16, the crude exports pipe, 17, second electrically operated valve, 18, second pressure transducer, 19, second damper, 20, cavity;
21, first conduit, 22, second conduit.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model embodiment is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, present embodiment provides a kind of differential pressure type crude production rate measuring apparatus, mainly comprises oil gas metering separation vessel body 1, glass-tube liquid level meter 12, first pressure transducer 11, second pressure transducer 18, differential pressure transmitter 15 and controller 13.
The bottom of oil gas metering separation vessel body 1 is provided with pool, the end and crude exports pipe 16, and the crude oil input end of crude exports pipe 16 is positioned at oil gas metering separation vessel body 1, and the mouth of pipe is not less than the liquid level of end water 2 in the pool, the end.The top of oil gas metering separation vessel body 1 is provided with gas outlet tube 8, oil gas metering separation vessel body 1 is provided with glass-tube liquid level meter 12, the cavity 20 of crude oil top is communicated with by first conduit 21 in the upper end of glass-tube liquid level meter 12 and the oil gas metering separation vessel body 1, the lower end of glass-tube liquid level meter 12 is communicated with pool, the end by second conduit 22, first conduit 21 links to each other with glass-tube liquid level meter 12 one with second conduit 22, oil gas metering separation vessel body 1 is provided with output liquid import 9, and output liquid import 9 is positioned at the top of glass-tube liquid level meter 12.
What the controller 13 of present embodiment was selected for use is PLC controller (Programmable LogicController, Programmable Logic Controller), and controller 13 also can be selected the single-chip microcomputer equal controller for use, is not limited to the utility model.
In order better to make gas-oil separation, be provided with in the oil gas metering separation vessel body 1 of present embodiment and separate umbrella 4 and hide oil baffle 5, separate umbrella 4 and hide oil baffle 5 and all belong to mature technology, can be not limited to the utility model according to the gas-liquid of the produced liquid in oil well parameter designing such as specification of oil gas metering separation vessel when.
During work, the output liquid multiparity fluid import 9 of oil well output enters oil gas metering separation vessel body 1, after separating umbrella 4 and hiding the separation of oil baffle 5, crude oil flows into the bottom of oil gas metering separation vessel body 1 downwards, compile above end water 2 liquid levels, the gas that carries in the described output liquid flows out oil gas metering separator body 1 through gas outlet tube 8.In controller 13, configure interval time of measurement t in advance, first pressure transducer 11 and second pressure transducer 18 are transferred to differential pressure transmitter 15 with the force value that monitors and obtain differential pressure value, described differential pressure value is the liquid pressure value that the end water of crude oil in the current oil gas metering separator body 1 and second pressure transducer, 18 tops is produced, differential pressure transmitter 15 converts liquid pressure value to electric signal and is transferred to controller 13, controller 13 calculates the oil offtake of this section period according to the difference that is two liquid pressure values of t interval time, and oil offtake is the product of the difference of the net sectional area of oil gas metering separation vessel body 1 and liquid pressure value.
The differential pressure type crude production rate measuring apparatus that present embodiment provides, differential pressure by different time sections liquid is measured crude production rate, differential pressure is not subjected to the influence of factors such as end water-mass density, the result is accurate in metering, and by pressure transducer and differential pressure transmitter transmission data, need not human metering, do not have artificial reading error, further guarantee the metering result accurately and reliably, saved human resources simultaneously.
The controller 13 of present embodiment is connected with computing machine 14, thereby has realized the on-line monitoring of production fluid amount.
With reference to Fig. 1, present embodiment has further increased damper and electrically operated valve based on embodiment 1 on the basis of embodiment 1, be specially:
During work, the fluid pressure higher limit is set in controller 13, when the liquid pressure value of differential pressure transmitter 15 transmission surpassed described higher limit, controller 13 controls first electrically operated valve 7 was closed, and controlled second electrically operated valve 17 and opened discharge crude oil.The upper pressure limit value decides according to the actual conditions at the scene pressure that lifting height produced by liquid level, and liquid level should be lower than the height that separates umbrella 4.
Because damper can increase the resistance of gas or liquid flow, present embodiment is by increasing damper, obtain buffering when making pressure in the oil gas metering separation vessel body 1, make pressure surge steady, and then guaranteed that pressure transducer collects stable, pressure signal accurately through damper; By increasing electrically operated valve, and electrically operated valve is connected with the output terminal of controller, has realized the purpose of automatic discharging oil gas metering separation vessel body 1 interior crude oil, further saved human resources.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. differential pressure type crude production rate measuring apparatus, comprise oil gas metering separation vessel body, the bottom of described body is provided with pool, the end and crude exports pipe, the top of described body is provided with gas outlet tube, described body is provided with glass-tube liquid level meter, the upper end of described glass-tube liquid level meter is communicated with the cavity of crude oil top in the described body, the lower end of described glass-tube liquid level meter is communicated with pool, the end, described body is provided with the gas-liquid mixture import, described gas-liquid mixture import is positioned at described glass-tube liquid level meter top, it is characterized in that:
Described cavity is provided with first pressure transducer with being communicated with between place and the described glass-tube liquid level meter of described glass-tube liquid level meter;
Pool, the described end is provided with second pressure transducer with being communicated with between place and the described glass-tube liquid level meter of described glass-tube liquid level meter;
Described first pressure transducer all links to each other with the input end of differential pressure transmitter with described second pressure transducer, and the output terminal of described differential pressure transmitter links to each other with the input end of controller.
2. differential pressure type crude production rate measuring apparatus according to claim 1 is characterized in that:
Described cavity is provided with first damper with being communicated with between place and described first pressure transducer of described glass-tube liquid level meter;
Pool, the described end is provided with second damper with being communicated with between place and described second pressure transducer of described glass-tube liquid level meter.
3. differential pressure type crude production rate measuring apparatus according to claim 1 is characterized in that:
Described gas outlet tube is provided with first electrically operated valve;
Described crude exports pipe is provided with second electrically operated valve;
The input end of the input end of described first electrically operated valve and described second electrically operated valve all is connected with the output terminal of described controller.
4. differential pressure type crude production rate measuring apparatus according to claim 1, it is characterized in that: described gas outlet tube also is provided with gas meter, and described gas meter is connected with the input end of described controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206321681U CN201885756U (en) | 2010-11-24 | 2010-11-24 | Differential pressure type crude oil production volume metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206321681U CN201885756U (en) | 2010-11-24 | 2010-11-24 | Differential pressure type crude oil production volume metering device |
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| Publication Number | Publication Date |
|---|---|
| CN201885756U true CN201885756U (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206321681U Expired - Lifetime CN201885756U (en) | 2010-11-24 | 2010-11-24 | Differential pressure type crude oil production volume metering device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061740A (en) * | 2011-10-21 | 2013-04-24 | 陈爱民 | Method of continuously measuring outputting objects of oil wells |
| CN103527173A (en) * | 2013-10-22 | 2014-01-22 | 西南石油大学 | Metering method and device for output liquid yield of producing well |
| CN103835696A (en) * | 2012-11-22 | 2014-06-04 | 上海一诺仪表有限公司 | Single-well metering device |
| CN104895549A (en) * | 2014-03-04 | 2015-09-09 | 中国石油化工股份有限公司 | A well yield metering device |
| CN105672984A (en) * | 2016-03-17 | 2016-06-15 | 叶侃 | Constant-volume single-well metering structure |
-
2010
- 2010-11-24 CN CN2010206321681U patent/CN201885756U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061740A (en) * | 2011-10-21 | 2013-04-24 | 陈爱民 | Method of continuously measuring outputting objects of oil wells |
| CN103835696A (en) * | 2012-11-22 | 2014-06-04 | 上海一诺仪表有限公司 | Single-well metering device |
| CN103527173A (en) * | 2013-10-22 | 2014-01-22 | 西南石油大学 | Metering method and device for output liquid yield of producing well |
| CN104895549A (en) * | 2014-03-04 | 2015-09-09 | 中国石油化工股份有限公司 | A well yield metering device |
| CN105672984A (en) * | 2016-03-17 | 2016-06-15 | 叶侃 | Constant-volume single-well metering structure |
| CN105672984B (en) * | 2016-03-17 | 2018-10-16 | 叶侃 | A kind of constant volume type one-well metering structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |
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| CX01 | Expiry of patent term |