CN115219547A - Wellhead steam dryness monitoring device and wellhead steam dryness monitoring method - Google Patents
Wellhead steam dryness monitoring device and wellhead steam dryness monitoring method Download PDFInfo
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 30
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
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- 238000012545 processing Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract description 2
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- 238000002347 injection Methods 0.000 description 2
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/14—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation
- G01N25/142—Investigating or analyzing materials by the use of thermal means by using distillation, extraction, sublimation, condensation, freezing, or crystallisation by condensation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
Abstract
The invention provides a wellhead steam dryness monitoring device and a wellhead steam dryness monitoring method. Wherein, well head steam quality monitoring devices includes: pumping the mixed sampler; the condensation channel of the condenser is communicated with the suction mixing sampler through a steam pipeline; the condensation water tank is communicated with the condensation channel of the condenser through a condensation water pipeline; the cooling water tank is communicated with the circulating channel of the condenser through a cooling water pipeline; the detection assembly is arranged on the steam pipeline, the condensation water pipeline and the cooling water pipeline and is used for detecting the pressure, the temperature, the flow, the mass flow and the heat energy of the steam pipeline, the condensation water pipeline and the cooling water pipeline; and the control device is connected with the detection assembly and is used for analyzing and processing data detected by the detection assembly. The invention solves the problem that the accurate measurement of the steam dryness of the wellhead cannot be realized in the prior art.
Description
Technical Field
The invention relates to the technical field of heavy oil thermal recovery, in particular to a wellhead steam dryness monitoring device and a wellhead steam dryness monitoring method.
Background
When the steam injection boiler produces high-temperature and high-pressure steam, a certain amount of energy is consumed: natural gas, water and electricity are large energy consumption equipment in the process of heavy oil thermal recovery. Steam injection boilers are divided into the following according to different types of generated steam: conventional steam injection boilers and superheated steam injection boilers. The conventional steam injection boiler generates saturated steam with the dryness of about 80 percent and transmits the saturated steam to a steam injection well through a pipeline; the steam injection boiler is superheated to produce superheated steam of low superheat. The superheat degree of the superheated steam can also be embodied in a dryness mode, and if the dryness degree is more than 100%, the superheated steam belongs to a superheated steam section; if the dryness is less than 100 percent, the steam belongs to a wet saturated steam section.
When the saturated steam with the dryness of about 80% or the superheated steam with low superheat degree is conveyed into a steam injection well through a pipeline, steam parameters are changed due to factors such as heat dissipation loss, gas-liquid two-phase flow and the like, the dryness of the steam is further changed, and the steam parameters of one or more oil wells are greatly changed to influence the steam injection effect. The steam dryness is an important parameter for representing the steam property, and the steam injection well can determine the steam injection amount and the steam injection time required in normal production according to the dryness monitoring result, so that the steam injection well has important significance for improving the recovery efficiency of the thickened oil and reducing the recovery cost of the thickened oil.
However, after the steam comes out from the outlet of the boiler, the steam needs to be conveyed to different steam injection wells through pipelines, and due to the influence of factors such as heat dissipation loss, two-phase flow, metal ions doped into the steam under the high-temperature and high-pressure steam flushing of a steel pipeline, steam sampling safety and the like, the current common conductivity method and chemical method cannot realize accurate measurement of the dryness fraction of the steam at the well head.
Disclosure of Invention
The invention mainly aims to provide a wellhead steam dryness monitoring device and a wellhead steam dryness monitoring method, and aims to solve the problem that accurate measurement of wellhead steam dryness cannot be realized in the prior art.
To achieve the above object, according to one aspect of the present invention, there is provided a wellhead steam quality monitoring device, comprising: the suction mixing sampler is arranged in the steam pipe to be detected and can extract steam in the steam pipe to be detected; the condensing channel of the condenser is communicated with the suction mixing sampler through a steam pipeline, and the steam extracted by the suction mixing sampler is conveyed to the condenser through the steam pipeline for condensation; the condensation water tank is communicated with a condensation channel of the condenser through a condensation water pipeline, and condensation water obtained by condensing steam is conveyed to the condensation water tank through the condensation water pipeline; the cooling water tank is communicated with the circulating channel of the condenser through a cooling water pipeline, and cooling water in the cooling water tank cools and condenses steam in the condensing channel in the circulating channel; the detection assembly is arranged on the steam pipeline, the condensation water pipeline and the cooling water pipeline and is used for detecting the pressure, the temperature, the flow, the mass flow and the heat energy of the steam pipeline, the condensation water pipeline and the cooling water pipeline; and the control device is connected with the detection assembly and is used for analyzing and processing data detected by the detection assembly.
Furthermore, the detection assembly comprises a steam pressure transmitter to be detected, a steam temperature transmitter to be detected and a steam volume flowmeter to be detected, and the steam pressure transmitter to be detected, the steam temperature transmitter to be detected and the steam volume flowmeter to be detected are sequentially arranged on the steam pipeline along the steam flowing direction.
Furthermore, well head steam quality monitoring devices still includes the governing valve, and the governing valve setting is on the steam pipe way, and is located the steam temperature transmitter that awaits measuring and awaits measuring between the steam volume flowmeter to can control the aperture of steam pipe way.
Furthermore, the detection assembly comprises a condensed water temperature transmitter, a condensed water pressure transmitter and a condensed water mass flowmeter, and the condensed water temperature transmitter, the condensed water pressure transmitter and the condensed water mass flowmeter are sequentially arranged on the condensed water pipeline along the flowing direction of the condensed water.
Further, the detection assembly includes a cooling water inlet temperature transmitter, a cooling water outlet temperature transmitter, and one of a cooling water mass flow meter and a cooling water heat energy meter, which are provided on the cooling water line, the cooling water inlet temperature transmitter being provided on an inlet side of the circulation passage in a flow direction of the cooling water, the cooling water outlet temperature transmitter being provided on an outlet side of the circulation passage, the cooling water mass flow meter being provided on the outlet side of the circulation passage or the cooling water heat energy meter being provided on the inlet side of the circulation passage.
Furthermore, the wellhead steam quality monitoring device further comprises a water pump, wherein the water pump is arranged on the cooling water pipeline and provides power for the flow of cooling water in the circulating channel.
Further, the cooling water tank includes a cold water portion and a heat-dissipating water portion that are separated from each other, the cold water portion being communicated with an inlet of the circulation passage, the heat-dissipating water portion being communicated with an outlet of the circulation passage.
Further, the condenser is a shell-and-tube condenser.
Further, the control device comprises a display instrument which can display the calculated real-time dryness.
According to another aspect of the invention, the wellhead steam dryness monitoring method is adopted, the wellhead steam dryness monitoring method comprises the steps that a suction mixing sampler extracts steam in a steam pipe to be detected and conveys the steam to a condenser through a steam pipeline, the condenser condenses the steam to form condensate, the condensate is conveyed to a condensate tank through a condensate pipeline, a detection assembly detects the steam pressure, the steam temperature, the steam volume flow, the condensate temperature, the condensate pressure, the condensate mass flow, the cooling water inlet temperature, the cooling water outlet temperature and the cooling water mass flow and sends a detection result to a control device, and the control device analyzes and processes various data detected by the detection assembly and calculates the real-time dryness.
By applying the technical scheme of the invention, the weighing method in the thermal balance method is utilized, and the method for measuring the real-time mass flow of the condensed water after the steam to be measured is condensed not only maintains the characteristics of simple measurement principle, wide dryness measurement range, no influence of the quality and steam parameters of the steam to be measured, safety of the sampling method, multiple application occasions and the like of the thermal balance method, but also avoids the influence of the values of the capturing time period, the thermal balance and the like in the weighing method on the accuracy of the calculation result, detects multiple parameters of the steam, the condensed water and the cooling water through the detection component, and calculates the dryness by utilizing the detected parameters, so that the calculated amount is increased, the accuracy of the calculation result can be greatly improved, accurate and reliable online real-time monitoring is realized, and the effect of accurately measuring the dryness of the steam in real time is realized. The application of the wellhead steam dryness monitoring device of the embodiment can monitor the steam dryness real-time data of the steam injection oil well in real time, remotely transmit the data to the steam injection boiler control room, and control room operators timely adjust the steam injection boiler operation mode or adjust the pipeline conveying and distributing valve according to dryness values, so that the injection steam heating power of each steam injection oil well is improved, fine steam injection is realized, and the steam injection cost is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural diagram of a wellhead steam quality monitoring device of the invention.
Wherein the figures include the following reference numerals:
10. pumping the mixed sampler; 20. a condenser; 30. a cooling water tank; 31. a cold water part; 32. a heat sink portion; 41. a steam pressure transmitter to be detected; 42. a steam temperature transmitter to be detected; 43. a steam volume flowmeter to be measured; 44. a condensate temperature transmitter; 45. a condensation water pressure transmitter; 46. a mass flow meter for condensed water; 47. a cooling water inlet temperature transmitter; 48. a cooling water outlet temperature transmitter; 49. a cooling water heat energy meter; 50. a control device; 60. adjusting a valve; 70. a water pump; 80. a steam pipe to be tested; 90. a steam line; 100. a condensate line; 110. a cooling water pipeline.
Detailed Description
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present invention, unless stated to the contrary, the use of directional terms such as "upper, lower, top, bottom" or the like, generally refers to the orientation of the components as shown in the drawings, or to the vertical, perpendicular, or gravitational orientation of the components themselves; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.
The invention provides a wellhead steam dryness monitoring device and a wellhead steam dryness monitoring method, aiming at solving the problem that accurate measurement of wellhead steam dryness cannot be realized in the prior art.
The wellhead steam dryness monitoring device shown in fig. 1 comprises a suction mixing sampler 10, a condenser 20, a condensation water tank, a cooling water tank 30, a detection assembly and a control device 50, wherein the suction mixing sampler 10 is arranged in a steam pipe 80 to be detected and can extract steam in the steam pipe 80 to be detected; the condensation channel of the condenser 20 is communicated with the suction mixing sampler 10 through a steam pipeline 90, and the steam extracted by the suction mixing sampler 10 is conveyed to the condenser 20 through the steam pipeline 90 for condensation; the condensed water tank is communicated with a condensing channel of the condenser 20 through a condensed water pipeline 100, and condensed water obtained by condensing steam is conveyed to the condensed water tank through the condensed water pipeline 100; the cooling water tank 30 is communicated with a circulation channel of the condenser 20 through a cooling water pipeline 110, and cooling water in the cooling water tank 30 cools and condenses steam in the condensation channel in the circulation channel; the detection components are arranged on the steam pipeline 90, the condensed water pipeline 100 and the cooling water pipeline 110, and detect the pressure, the temperature, the flow, the mass flow and the heat energy of the steam pipeline 90, the condensed water pipeline 100 and the cooling water pipeline 110; the control device 50 is connected to the detection unit, and analyzes and processes data detected by the detection unit.
In the embodiment, by utilizing the weighing method in the thermal balance method and the method for measuring the real-time mass flow of the condensed water after the steam to be measured is condensed, the characteristics of simple measurement principle, wide dryness measurement range, no influence of the quality of the steam to be measured and steam parameters, safe sampling method, multiple application occasions and the like of the thermal balance method are kept, the influence of the numerical values of a capturing time period, thermal balance and the like in the weighing method on the accuracy of a calculation result is avoided, multiple parameters of the steam, the condensed water and cooling water are detected through the detection assembly, and the dryness is calculated by utilizing the detected parameters, so that the accuracy of the calculation result can be greatly improved by increasing the calculated amount, accurate and reliable online real-time monitoring is realized, and the effect of accurately measuring the dryness of the steam in real time is realized. The application of the wellhead steam dryness monitoring device of the embodiment can monitor the steam dryness real-time data of the steam injection oil well in real time, remotely transmit the data to the steam injection boiler control room, and control room operators timely adjust the steam injection boiler operation mode or adjust the pipeline conveying and distributing valve according to dryness values, so that the injection steam heating power of each steam injection oil well is improved, fine steam injection is realized, and the steam injection cost is reduced.
In this embodiment, the detecting component includes the steam pressure transmitter 41 to be detected, the steam temperature transmitter 42 to be detected and the steam volume flow meter 43 to be detected, and the steam pressure transmitter 41 to be detected, the steam temperature transmitter 42 to be detected and the steam volume flow meter 43 to be detected are sequentially arranged on the steam pipeline 90 along the steam flowing direction, so that the steam pressure, the steam temperature and the steam volume flow parameter of the steam can be correspondingly detected.
Optionally, the wellhead steam quality monitoring device further comprises an adjusting valve 60, the adjusting valve 60 is arranged on the steam pipeline 90, is located between the steam temperature transmitter 42 to be detected and the steam volume flowmeter 43 to be detected, and can control the opening degree of the steam pipeline 90, so that the flow of the steam entering the condenser 20 is controlled, and the condensation effect is guaranteed.
In the present embodiment, the detection unit includes a condensate temperature transmitter 44, a condensate pressure transmitter 45, and a condensate mass flow meter 46, and the condensate temperature transmitter 44, the condensate pressure transmitter 45, and the condensate mass flow meter 46 are sequentially provided on the condensate line 100 in the flow direction of the condensate. Therefore, the temperature, pressure and mass flow parameters of the condensed water can be correspondingly detected.
In the present embodiment, the detection assembly includes a cooling water inlet temperature transmitter 47, a cooling water outlet temperature transmitter 48, and a cooling water mass flow meter provided on the cooling water line 110, the cooling water inlet temperature transmitter 47 being provided on the inlet side of the circulation passage, the cooling water outlet temperature transmitter 48 being provided on the outlet side of the circulation passage, and the cooling water mass flow meter being provided on the outlet side of the circulation passage in the flow direction of the cooling water. Therefore, the temperature of the cooling water inlet, the temperature of the cooling water outlet and the mass flow parameters of the cooling water can be correspondingly detected. Of course, the cooling water mass flow meter may be replaced by a cooling water heat energy meter 49, the cooling water heat energy meter 49 is disposed at the inlet side of the circulation channel, the required real-time heat absorption capacity of the cooling water can be calculated by the cooling water heat energy meter 49, and the cooling water heat energy meter 49 may cooperate with the cooling water inlet temperature transmitter 47 and the cooling water outlet temperature transmitter 48 to mutually verify the accuracy of the heat absorption capacity.
In this embodiment, the wellhead steam quality monitoring device further comprises a water pump 70, and the water pump 70 is disposed on the cooling water pipeline 110 and provides power for the flow of the cooling water in the circulation channel.
The condenser 20 of this embodiment adopts shell-and-tube condenser, and it includes two mutually separated passageways of circulation channel and condensing channel, and wherein, the cooling water lets in circulation channel, and steam lets in condensing channel, and steam carries out the heat exchange with the cooling water among the circulation channel in condensing channel to the realization is to the cooling condensation of steam, makes the steam condensation be the effect of condensate water. The cooling water tank 30 of the present embodiment includes a cold water portion 31 and a heat-dissipating water portion 32 which are separated from each other, wherein the cold water portion 31 is communicated with an inlet of the circulation channel and is used for introducing cooling water with a lower temperature into the circulation channel, the heat-dissipating water portion 32 is communicated with an outlet of the circulation channel, and the cooling water with an increased temperature obtained after heat exchange enters the heat-dissipating water tank for temperature reduction.
Alternatively, the control device 50 may employ a computer or other like device as needed, which includes a display device capable of displaying the calculated real-time dryness. The control device 50 stores a parameter database required by calculation, the control device 50 can be in real-time communication connection with each device of the detection assembly, the measurement data of each measurement point is collected in real time, the real-time dryness is calculated through the database calling, and the real-time dryness is displayed, stored and remotely transmitted.
Alternatively, the regulating valve 60 of the present embodiment is an electric regulating valve, and manual valves for controlling on/off are further provided on the steam line 90 and the cooling water line 110.
It should be noted that, each device of the detection assembly only needs to be disposed on the corresponding pipeline, and the sequential arrangement manner between the devices is not limited to the manner given in this embodiment, and can be adjusted as needed.
The steam condensation process of the port steam dryness monitoring device of the embodiment is as follows: the suction mixing sampler 10 arranged in the steam pipe 80 to be detected can ensure that the form of the extracted medium is consistent with that of the medium in the steam pipe 80 to be detected as much as possible, steam passes through the steam pipeline 90 to cause the manual valve, the manual valve is opened and then passes through the steam pressure transmitter 41 to be detected, the steam temperature transmitter 42 to be detected and then the regulating valve 60, the regulating valve 60 controls the steam inflow through the opening of the regulating valve, then the steam enters the condenser 20 through the steam volume flow meter 43 to be detected to release heat so as to condense the steam into condensed water, and the condensed water passes through the condensed water temperature transmitter 44, the condensed water pressure transmitter 45, then the condensed water mass flow meter 46 and finally is discharged to a condensed water tank to be collected.
The cooling water circulation process of the port steam dryness monitoring device of the embodiment is as follows: the cooling water is conveyed through the cooling water pipeline 110 under the action of the water pump 70, the cooling water enters the condenser 20 for heat absorption after the temperature of the cooling water inlet is measured, the cooling water after heat absorption flows out of the condenser 20 and enters the cooling water pipeline 110, and the cooling water after the temperature of the cooling water outlet is measured and flows through the cooling water mass flow meter and enters the water cooling part 32, so that the real-time heat absorption capacity of the cooling water is obtained.
The embodiment also provides a wellhead steam dryness monitoring method, which adopts the wellhead steam dryness monitoring device and comprises the steps that a suction mixing sampler 10 extracts steam in a steam pipe 80 to be detected and conveys the steam to a condenser 20 through a steam pipeline 90, the condenser 20 condenses the steam to form condensate, the condensate is conveyed to a condensate tank through a condensate pipeline 100, a detection component detects the steam pressure, the steam temperature, the steam volume flow, the condensate temperature, the condensate pressure, the condensate mass flow, the cooling water inlet temperature, the cooling water outlet temperature and the cooling water mass flow and sends a detection result to a control device 50, and the control device 50 analyzes and processes various data detected by the detection component and calculates real-time dryness.
The specific calculation method can refer to the following formula:
Q f ＝MXH 1 +M(1-X)H 2 -MH s ＝Q x ；
and further obtaining an equation of the steam dryness X to be detected:
X＝(Q x /M+H s -H 2 )/(H 1 -H 2 )。
in the above-mentioned equation,
Q f -is the instantaneous heat release of the steam to be measured, in kj;
Q x -is the instantaneous heat absorption of the cooling water in kj;
m is the instantaneous flow of condensed water and is unit kg/h;
x is the dryness of steam to be measured in unit percent;
H 1 -measuring the dry saturated steam enthalpy at temperature for the steam to be measured in kj/kg;
H 2 -measuring the saturated water enthalpy at temperature for the steam to be measured in kj/kg;
H s the enthalpy of the condensed water at the temperature of the steam temperature transmitter to be measured is expressed in kj/kg.
The thick oil production unit adopts the method that high-temperature high-pressure wet steam or low-superheat-degree superheated steam is injected into an oil well, the steam injection process is a continuous process, the duration is generally 7-15 d, the pressure and the temperature of the wet steam or the low-superheat-degree superheated steam produced by a steam injection boiler are respectively 8-15 MPa and 295-345 ℃, and the dryness is generally controlled as follows: the wet steam is 0.75-0.8, and the superheated steam is generally 0.95-1. In the steam injection process, the steam dryness in the oil well steam injection pipeline is detected in real time by a wellhead steam dryness monitoring device by adopting a wellhead steam dryness monitoring method so as to control and adjust the dryness of the boiler.
It should be noted that, a plurality in the above embodiments means at least two.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
1. the problem that accurate measurement of the steam dryness at the wellhead cannot be realized in the prior art is solved;
2. the thermal balance method is utilized, so that the characteristics of simple measurement principle, wide dryness measurement range, no influence of the quality and steam parameters of steam to be measured, safety of a sampling method, multiple application occasions and the like of the thermal balance method are reserved, and the influence of the values of a capturing time period, thermal balance and the like in a weighing method on the accuracy of a calculation result is avoided;
3. the steam dryness detecting device has the advantages that multiple parameters of steam, condensed water and cooling water are detected through the detecting assembly, the dryness is calculated by using the detected parameters, the accuracy of a calculation result can be greatly improved by increasing the calculated amount, accurate and reliable online real-time monitoring is realized, and the effect of accurately measuring the steam dryness in real time is realized.
It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A wellhead steam quality monitoring device, characterized by comprising:
the device comprises a suction mixing sampler (10), a steam pipe (80) to be detected and a steam pump, wherein the suction mixing sampler (10) is arranged in the steam pipe (80) to be detected and can extract steam in the steam pipe (80) to be detected;
the condensation channel of the condenser (20) is communicated with the suction mixing sampler (10) through a steam pipeline (90), and the steam sucked by the suction mixing sampler (10) is conveyed to the condenser (20) through the steam pipeline (90) for condensation;
the condensation water tank is communicated with a condensation channel of the condenser (20) through a condensation water pipeline (100), and condensation water obtained by condensing steam is conveyed to the condensation water tank through the condensation water pipeline (100);
the cooling water tank (30) is communicated with a circulating channel of the condenser (20) through a cooling water pipeline (110), and cooling water in the cooling water tank (30) cools and condenses steam in the condensing channel in the circulating channel;
the detection assembly is arranged on the steam pipeline (90), the condensed water pipeline (100) and the cooling water pipeline (110), and detects the pressure, the temperature, the flow, the mass flow and the heat energy of the steam pipeline (90), the condensed water pipeline (100) and the cooling water pipeline (110);
and the control device (50) is connected with the detection assembly, and analyzes and processes data detected by the detection assembly.
2. A wellhead steam dryness monitoring device according to claim 1, characterized in that the detecting component comprises a steam pressure transmitter (41) to be detected, a steam temperature transmitter (42) to be detected and a steam volume flow meter (43) to be detected, the steam pressure transmitter (41) to be detected, the steam temperature transmitter (42) to be detected and the steam volume flow meter (43) to be detected are sequentially arranged on the steam pipeline (90) along the steam flowing direction.
3. A wellhead steam quality monitoring device according to claim 2, characterized in that, the device further comprises a regulating valve (60), the regulating valve (60) is arranged on the steam pipeline (90) and is located between the steam temperature transmitter (42) to be tested and the steam volume flowmeter (43) to be tested, and can control the opening degree of the steam pipeline (90).
4. A wellhead steam quality monitoring device according to claim 1, characterized in that the detecting component comprises a condensation water temperature transmitter (44), a condensation water pressure transmitter (45) and a condensation water mass flow meter (46), the condensation water temperature transmitter (44), the condensation water pressure transmitter (45) and the condensation water mass flow meter (46) are arranged on the condensation water pipeline (100) in sequence along the flow direction of the condensation water.
5. The wellhead steam quality monitoring device according to claim 1, wherein the detecting assembly comprises a cooling water inlet temperature transmitter (47), a cooling water outlet temperature transmitter (48) and one of a cooling water mass flow meter and a cooling water heat energy meter (49) which are arranged on the cooling water pipeline (110), the cooling water inlet temperature transmitter (47) is arranged on an inlet side of the circulation passage, the cooling water outlet temperature transmitter (48) is arranged on an outlet side of the circulation passage, and the cooling water mass flow meter is arranged on the outlet side of the circulation passage or the cooling water heat energy meter (49) is arranged on the inlet side of the circulation passage along a flow direction of the cooling water.
6. A wellhead steam quality monitoring device according to claim 1, characterized in that it further comprises a water pump (70), said water pump (70) is disposed on said cooling water pipeline (110) and provides power for the flow of cooling water in said circulation channel.
7. A wellhead steam quality monitoring device according to claim 1, characterized in that said cooling water tank (30) includes a cold water portion (31) and a heat sink water portion (32) separated from each other, said cold water portion (31) communicating with an inlet of said circulation passage and said heat sink water portion (32) communicating with an outlet of said circulation passage.
8. A wellhead steam quality monitoring device as claimed in claim 1, characterised in that the condenser (20) is a shell and tube condenser.
9. A wellhead steam quality monitoring device as claimed in claim 1, characterised in that the control means (50) includes a display which is capable of displaying the calculated real time quality.
10. A wellhead steam dryness monitoring method, characterized in that the wellhead steam dryness monitoring device of any claim 1 to 9 is adopted, the wellhead steam dryness monitoring method comprises a suction mixing sampler (10) for extracting steam in a steam pipe (80) to be detected and conveying the steam to a condenser (20) through a steam pipeline (90), the condenser (20) condenses the steam into condensate, the condensate is conveyed to a condensate tank through a condensate pipeline (100), a detection component detects steam pressure, steam temperature, steam volume flow, condensate temperature, condensate pressure, condensate mass flow, cooling water inlet temperature, cooling water outlet temperature and cooling water mass flow and sends the detection result to a control device (50), and the control device (50) analyzes and processes various data detected by the detection component and calculates real-time dryness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110402721.5A CN115219547A (en) | 2021-04-14 | 2021-04-14 | Wellhead steam dryness monitoring device and wellhead steam dryness monitoring method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117686285A (en) * | 2024-02-04 | 2024-03-12 | 克拉玛依市城投油砂矿勘探有限责任公司 | Steam pipeline dryness sampling device |
| CN117686285B (en) * | 2024-02-04 | 2024-05-14 | 克拉玛依市城投油砂矿勘探有限责任公司 | Steam pipeline dryness sampling device |
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| CN101082597A (en) * | 2006-05-31 | 2007-12-05 | 西北工业大学 | Coagulating type dryness fraction measurement mechanism and measurement method thereof |
| JP2010038458A (en) * | 2008-08-05 | 2010-02-18 | Kurita Water Ind Ltd | Steam quality monitoring apparatus |
| CN103207210A (en) * | 2013-03-19 | 2013-07-17 | 中国核动力研究设计院 | Online wet steam dryness gauge |
| CN204064988U (en) * | 2014-04-03 | 2014-12-31 | 中国核动力研究设计院 | Flowing wet steam humidity measuring instrument |
| CN212483431U (en) * | 2020-06-05 | 2021-02-05 | 中国石油天然气集团有限公司 | Saturated steam dryness measuring device for steam injection boiler of oil field |
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| CN101082597A (en) * | 2006-05-31 | 2007-12-05 | 西北工业大学 | Coagulating type dryness fraction measurement mechanism and measurement method thereof |
| JP2010038458A (en) * | 2008-08-05 | 2010-02-18 | Kurita Water Ind Ltd | Steam quality monitoring apparatus |
| CN103207210A (en) * | 2013-03-19 | 2013-07-17 | 中国核动力研究设计院 | Online wet steam dryness gauge |
| CN204064988U (en) * | 2014-04-03 | 2014-12-31 | 中国核动力研究设计院 | Flowing wet steam humidity measuring instrument |
| CN212483431U (en) * | 2020-06-05 | 2021-02-05 | 中国石油天然气集团有限公司 | Saturated steam dryness measuring device for steam injection boiler of oil field |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117686285A (en) * | 2024-02-04 | 2024-03-12 | 克拉玛依市城投油砂矿勘探有限责任公司 | Steam pipeline dryness sampling device |
| CN117686285B (en) * | 2024-02-04 | 2024-05-14 | 克拉玛依市城投油砂矿勘探有限责任公司 | Steam pipeline dryness sampling device |
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