CN207096161U - Downhole Steam Dryness Measuring Device - Google Patents
Downhole Steam Dryness Measuring Device Download PDFInfo
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- CN207096161U CN207096161U CN201720972954.8U CN201720972954U CN207096161U CN 207096161 U CN207096161 U CN 207096161U CN 201720972954 U CN201720972954 U CN 201720972954U CN 207096161 U CN207096161 U CN 207096161U
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- 238000005259 measurement Methods 0.000 claims abstract description 103
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 238000000926 separation method Methods 0.000 claims abstract description 30
- 239000000523 sample Substances 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 17
- 230000004888 barrier function Effects 0.000 claims description 14
- 238000005524 ceramic coating Methods 0.000 claims description 6
- 238000010025 steaming Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 238000005070 sampling Methods 0.000 description 6
- 238000010793 Steam injection (oil industry) Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 238000010796 Steam-assisted gravity drainage Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
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- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
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Abstract
The utility model discloses a steam quality measuring device in pit, include: a steam-water separation unit; the steam-water separation unit comprises a cylindrical cavity and a cylindrical measuring chamber which is positioned in the cylindrical cavity and is coaxially arranged; the cylindrical chamber forms a separate annulus outside the cylindrical measurement chamber; a hydroelectric capacitance sensor probe; the water electrode capacitance sensor probe comprises a cylindrical metal core and an insulating layer arranged on the outer side of the cylindrical metal core; the cylindrical measuring chamber forms a measuring annular space outside the water electrode capacitance sensor probe; the upper end of the separated annular space is communicated with the upper end of the measuring annular space; the lower end of the separation annulus is communicated with the lower end of the measurement annulus; the water electrode capacitance sensor probe and the fluid in the measurement annulus can form an equivalent capacitance sensor; a capacitance meter for measuring the capacitance of the equivalent capacitive sensor. The utility model provides a steam quality measuring device in pit can realize the online real-time measurement of quality.
Description
Technical field
It the utility model is related to oil exploration equipment field, more particularly to a kind of underground steam dryness measurement device.
Background technology
Liaohe Oil Field is the maximum viscous crude production base in China, at present Liaohe Oil Field mainly driven with steam soak, steam and
Based on the development schemes such as SAGD (SAGD), on stream, in order to reasonably adjust steam injection parameter, it is necessary to
Mass dryness fraction parameter is measured during steam injection produces and injects, accurately to analyze and grasp steam injection quality, carried
High thermal recovery efficiency.
Underground steam dryness measurement faces changeable flow pattern in steam injection pit shaft, pipeline distortion, measurement space is limited and is difficult to people
The problems such as work manipulates.Oil Field steam quality tests still more use sampling method at present, and it is longer that sampling method continues to use the time, and
And sampling technique has also been made significant headway.The problem of sampling method maximum is exactly the company that can not realize underground steam mass dryness fraction section
Continuous measurement.Also there are some researchers to attempt directly to carry out the inspection of the radioactivity and activity of trace particle after well sampling at present
Test, to reach the purpose of continuous measurement steam quality, still, all without the good effect of acquirement.
After the dryness of wet steam of ground on-line testing at present is mainly measured respectively using steam-water separator to steam-water twin phases state,
Then steam quality is calculated, shortcoming is the measurement that separator is not suitable for underground steam mass dryness fraction.Also with good grounds light refraction in addition
The fibre optical sensor of rate modulation principle development has carried out the dryness measurement experiment of different depth in the steam injection pit shaft in oil field, still
Because underground situation is complicated, optical method scene adaptability is too poor, and can only measure the mass dryness fraction of certain point in pit shaft, it is impossible to whole
Individual runner carries out overall measurement.Accordingly, because measurement range is small, optical method is caused to be easy to be influenceed by droplet distribution,
Cause measurement inaccurate, thus at present the method still without widely using, it is also necessary to further research, to reach what is promoted the use of
Purpose.
Other method is the combined test method with traditional flow measurement instrument and density measure instrument, is such as utilized
Turbine flowmeter, neutron density meter and combinations thereof method, because some radioactivity survey instrument safeguard procedures are inconsiderate, it is difficult to big rule
Mould is promoted.
Utility model content
In view of the above-mentioned deficiency of prior art, the purpose of this utility model is to provide a kind of underground steam dryness measurement dress
Put, so that the On-line sampling system of mass dryness fraction can be realized.
To reach above-mentioned purpose, the utility model provides a kind of underground steam dryness measurement device, including：
Steam steam-water separation unit；The steaming steam-water separation unit includes cylindrical chamber and in cylindrical cavity room
And the cylindrical measurement chamber being coaxially disposed；The cylindrical chamber is in the cylindrical measurement chamber profile composition from annular space；
It is coaxially disposed in the water electrode capacitance sensor probe in the cylinder measurement annular space；The water power electrode capacitance passes
Sensor probe includes cylindrical metal core and the insulating barrier being wrapped on the outside of the cylindrical metal core；The cylinder is surveyed
Measure room and measurement annular space is formed outside the water electrode capacitance sensor is popped one's head in；The upper end of the separation annular space connects the measurement ring
Empty upper end；The lower end of the lower end connection measurement annular space of the separation annular space；The water electrode capacitance sensor probe energy
An equivalent capacitance sensor is formed with the fluid in the measurement annular space；
For measuring the electric capacity instrument of the equivalent capacity sensor capacitance.
As a preferred embodiment, the insulating barrier is ceramic coating.
As a preferred embodiment, the thickness of the insulating barrier is 100-300 microns.
As a preferred embodiment, it is coaxially provided with separating pipe in the separation annular space；The separating pipe is by described in
Separation annular space is divided into the first annular space and the second annular space；First annular space is used to input steam aqueous mixtures；In the separating pipe
With excessively stream hole；The upper end of the upper end connection measurement annular space of second annular space；The lower end connection of second annular space
The lower end of the measurement annular space.
As a preferred embodiment, the separating pipe is slotted liner.
As a preferred embodiment, the upper end of second annular space connected the measurement annular space by upper communicating pipe
Upper end；The lower end of second annular space connects the lower end of the measurement annular space by lower communicating tube.
As a preferred embodiment, the wall of the cylindrical measurement chamber is formed for conductive material, the electric capacity instrument
Both positive and negative polarity connect the wall of the cylindrical metal core and the cylindrical measurement chamber respectively.
As a preferred embodiment, also include：The controller being connected with the electric capacity instrument；The electric capacity instrument can incite somebody to action
The capacitance measured is transferred to the controller.
As a preferred embodiment, the controller is predetermined according to first using the electric capacity that the electric capacity instrument measures
Relation calculates steam quality；First predetermined relationship is：
Wherein, ε0Represent insulating dielectric constants；εgRepresent steam dielectric constant；XGFor the mass dryness fraction of steam；ρVapourTo measure ring
The density of aerial steam；ρWaterTo measure the density of annular space reclaimed water；H is the height of separation annular space；δ is the thickness of insulating barrier；R0For
Metal-cored radius.
As a preferred embodiment, electric capacity and the electric capacity of water that the controller measures according to the electric capacity instrument with
Second predetermined relationship of the boundary height of steam and water calculates the boundary height；Second predetermined relationship is：
Wherein, h is the height of the boundary.
All there is above technical scheme to understand that in the utility model, the underground steam dryness measurement device first passes through steam water
Separative element is kept completely separate fraction steam water two phase flow, is then measured again by water electrode capacitance sensor probe, will
Mine water electrode capacitance sensor probe is equivalent to cylindrical capacitance sensor with the fluid in measurement annular space, utilizes what is derived
The corresponding relation (the first predetermined relationship) of surveyed capacitance and steam quality, therefore in the utility model, the underground steam mass dryness fraction
Measurement apparatus need to only measure to water electrode capacitance, so that it may obtain corresponding steam quality, can be realized using electric capacity instrument
The real-time measurement of underground steam mass dryness fraction.
With reference to following explanation and accompanying drawing, particular implementation of the present utility model is disclose in detail, specifies this practicality
New principle can be in a manner of adopted.It should be understood that embodiment of the present utility model in scope not thus by
Limitation.In the range of the spirit and terms of appended claims, embodiment of the present utility model includes many changes, modifications
With it is equivalent.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
Used in individual other embodiment, it is combined with the feature in other embodiment, or substitute the feature in other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when being used herein, but simultaneously
It is not excluded for the presence or additional of one or more further features, one integral piece, step or component.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those skilled in the art, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the underground steam dryness measurement device structural representation that a kind of embodiment of the utility model is provided；
Fig. 2 is the cylindrical equivalent condenser schematic diagram in Fig. 1；
Fig. 3 is vapor portion capacitance sensor series equivalent circuit figure in Fig. 2；
Fig. 4 is cylindrical equivalent condenser entirety equivalent parallel circuit diagram in Fig. 2.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the utility model, below in conjunction with this reality
With the accompanying drawing in new embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that
Described embodiment is only the utility model part of the embodiment, rather than whole embodiments.Based on the utility model
In embodiment, the every other implementation that those of ordinary skill in the art are obtained on the premise of creative work is not made
Example, it should all belong to the scope of the utility model protection.
It should be noted that when element is referred to as " being arranged at " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is simply in term used in the description of the present utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein "and/or" bag
Include the arbitrary and all combination of the Listed Items of one or more correlations.
Fig. 1, Fig. 2 are referred in the lump, and in the utility model, inventor is by the underground water power of underground steam dryness measurement device
Electrode capacitance sensor probe 9 is equivalent to cylindrical equivalent capacity sensor with measurement annular space 10 (interior steam 3, water 4), utilizes water
4 electric conductivity, thus can be directly water 4 as cylindrical equivalent condenser an electrode, and another electrode is exactly water
Metal-cored the 13 of electrode capacitance sensor probe 9.The ceramic coating (following) on metal-cored 13 surface is exactly dielectric, dielectric
Thickness be 100-300 microns this distance between two electrodes is become suitable small.Can by the ABC of capacitance sensor
To know, the sensitivity of capacitance sensor will greatly increase, and the measurement accuracy of mine water electrode probe 9 will improve.
Meanwhile underground steam dryness measurement device is separated steam 3 and water 4 by steaming steam-water separation unit, wherein, water 4
Be deposited in measurement annular space 10 bottom and steam 3 be gathered in measurement annular space 10 top, formed boundary 15.It is former according to linker
Reason, it is recognised that separation after steam 3 and water 4 have with tested steam-water two-phase fluid in pit shaft it is identical equivalent
Density, then the quality of steam 3 and water 4 after separating is only relevant with volume, and steam quality is dry saturated steam 3 in the steam of saturation water 4
Shared mass percent, so, it is only necessary to measure the height can measurement of measuring chamber 8 (measurement annular space 10) boundary 15
The mass dryness fraction value gone out in pit shaft, according to water electrode capacitance sensor computation model, when the boundary 15 of measuring chamber 8 (measurement annular space 10)
During height change, the capacitance of equivalent capacity sensor will change therewith, therefore, as long as cylindrical equivalent capacity is passed
The measured capacitance value of sensor goes out to converse the mass dryness fraction value of steam 3 in pit shaft.
As shown in Figures 1 and 2, the underground steam dryness measurement device signal provided for a kind of embodiment of the utility model
Figure.In this embodiment, the underground steam dryness measurement device includes：Steam steam-water separation unit；The steaming steam-water separation list
Member includes cylindrical chamber and in cylindrical cavity room and the cylindrical measurement chamber 8 that is coaxially disposed；The cylindrical chamber
In the profile composition of cylindrical measurement chamber 8 from annular space；It is coaxially disposed and is passed in the water power electrode capacitance in the cylindrical measurement chamber 8
Sensor probe 9；The water electrode capacitance sensor probe 9 includes cylindrical metal core 13 and is wrapped in the cylinder gold
Belong to the insulating barrier 12 in the outside of core 13；The cylindrical measurement chamber 8 forms measurement ring outside water electrode capacitance sensor probe 9
Sky 10；The upper end of the upper end connection measurement annular space 10 of the separation annular space；The lower end of the separation annular space connects the survey
Measure the lower end of annular space 10；It is equivalent that the water electrode capacitance sensor probe 9 can form one with the fluid in the measurement annular space 10
Capacitance sensor；And for measuring the electric capacity instrument of the equivalent capacity sensor capacitance.
Wherein, the insulating barrier 12 is the dielectric layer in equivalent capacity sensor, for obtain preferable dielectric effect and
Improving measurement accuracy, the insulating barrier 12 are ceramic coating.Specifically, the thickness of the insulating barrier 12 is 100-300 microns.
In the present embodiment, steam water is different from the path that water 4 is walked through separating steam 3 when annular space enters measurement annular space
And it is separated into steam 3 and water 4.To obtain preferable separating effect, the separating effect of lifting steam 3 and water 4, electric capacity is improved
Measurement accuracy, described separate in annular space are coaxially provided with separating pipe 2.The separation annular space is divided into the first annular space 1 by the separating pipe 2
With the second annular space 5；First annular space 1 is used to input steam aqueous mixtures；There is excessively stream hole in the separating pipe 2；It is described
The upper end of the upper end connection measurement annular space 10 of second annular space 5；The lower end connection measurement annular space 10 of second annular space 5
Lower end.Specifically, the separating pipe 2 is slotted liner 2.Multiple slot passages, the slot are evenly distributed with slotted liner 2
Passage is one kind of excessively stream hole.
Using law of connected vessels, the separating effect of steam 3 and water 4 is further lifted, the upper end of second annular space 5 passes through
Connect the upper end of the measurement annular space 10 upper communicating pipe 6；The lower end of second annular space 5 connects the survey by lower communicating tube 7
Measure the lower end of annular space 10.Under such a structure, the steam 3 in the second annular space 5 was entered by upper communicating pipe 6 to be measured in annular space 10, the
Water 4 in two annular spaces 5 is entered by lower communicating tube 7 to be measured in annular space 10, is entered because steam 3 passes through different passages from water 4
Measure in annular space 10, further improve the separating effect of steam 3 and water 4.
To form two electrodes of equivalent capacity sensor, using the electric conductivity of water 4, the wall of the cylindrical measurement chamber 8
Formed for conductive material, the both positive and negative polarity of the electric capacity instrument connects the cylindrical metal core 13 and the cylinder measurement respectively
The wall of room 8.In this way, the wall of cylindrical measurement chamber 8 provides the link position of electric capacity instrument, due to the electric conductivity of the wall, equally it is considered as
Electric capacity instrument is electrically connected with the water 4 in measurement annular space 10, the phase of steam 3.
In the present embodiment, the underground steam dryness measurement device also includes：The controller being connected with the electric capacity instrument
(not shown)；The capacitance measured can be transferred to the controller by the electric capacity instrument.The controller has hardware configuration, than
Such as, the controller can be computer, PLC, CPU, circuit board or single-chip microcomputer etc..Preferably, the controller is arranged at well
Outside, and cable connection electric capacity instrument is passed through.The controller is also provided with display module, and the display module can show control
The steam quality that device processed calculates.Specifically, the display module can be display screen.
Done specifically, the controller calculates steam using the electric capacity that the electric capacity instrument measures according to the first predetermined relationship
Degree；First predetermined relationship is：
Wherein, ε0Represent insulating dielectric constants；εgRepresent steam dielectric constant；XGFor the mass dryness fraction of steam；ρVapourTo measure ring
The density of aerial steam；ρWaterTo measure the density of annular space reclaimed water；H is the height of separation annular space；δ is the thickness of insulating barrier；R0For
Metal-cored radius.
Further, the phase boundary of the electric capacity and the electric capacity of water that the controller measures according to the electric capacity instrument and steam and water
Second predetermined relationship of the height of face 15 calculates the height of boundary 15；Second predetermined relationship is：
Wherein, h is the height of the boundary 15.
To make the purpose, technical scheme and advantage of the utility model patent clearer, below in conjunction with 1,2 pair of sheet of accompanying drawing
Utility model patent embodiment is described in further detail.
As shown in Figure 1 and Figure 2, underground steam dryness measurement device is using cylindrical capacitance sensor probe 9, steam
Water separative element divides steam 3 and water 4 for upper and lower two parts：Top is divided into steam 31, is highly d；Bottom is divided into water 4, height
For h, steam-water interface (boundary) label 15.The core of water electrode capacitance sensor probe 9 is metal-cored 13, gold
Belong to the outer wrap ceramic coating (insulating barrier 12) 12 of core 13, the thickness of the ceramic coating 12 is δ.
As shown in figure 3, electric capacity caused by measuring the upper steam part 3 in annular space 10 can be equivalent to two electric capacity strings
Connection.The capacitance of equivalent capacity 21 caused by insulating barrier 12 in vapor portion 3 is C21, vapor portion 3 itself generation (or shape
Into) the capacitance of equivalent capacity 22 be C22, rudimentary knowledge is calculated according to cylindrical capacitive, drawn：
According to electric capacity tandem principle, water power electrode capacitor probe 9 (or measuring annular space 10) upper steam part 3 is drawn
The electric capacity C of equivalent capacity 200 caused by (entirety)2For：
Wherein：ε0For insulating dielectric constants, dimensionless；εgFor steam dielectric constant, dimensionless.
As shown in figure 4, the integral capacitor of water electrode capacitance sensor probe 9 and measurement annular space 10 is equivalent to two electric capacity simultaneously
Connection, the capacitance of equivalent capacity 100 is C wherein caused by water section 41, its calculation formula is：
Wherein, capacitance caused by vapor portion is C2, computational methods such as formula (3).
So, the equivalent capacity sensors that whole water electrode capacitance sensor probe 9 is formed with measuring annular space 10 it is whole
The electric capacity C of body capacitance is：
It is computed finding C1》C2, so capacitance caused by vapor portion 3 can be ignored.Therefore underground water electrode electricity
Hold sensor probe 9 and form the integral capacitor value of equivalent capacity sensor with measurement annular space 10 and be:
So, electric capacity C just turns into water surface elevation h monotropic function.
According to steam quality XGCalculation formula：
In formula (7), XqFor the quality of dry saturated steam, XSFor the quality of water.From equivalent capacity sensor computation model：
Xq=ρVapourSdD=ρVapourSd(H-h) (8)
XS=ρWaterSdh (9)
In formula, SdAnnular space floor space is measured for cylinder, d is vapor portion height, and h is water surface elevation, and H surveys for water electrode
Measure annular space whole height, ρVapourFor the density of steam in measurement annular space, ρWaterTo measure the density of annular space reclaimed water.
Because the measurement floor space of annular space 10 is identical, the density of steam 3 and water 4 and the equivalent density for separating preceding steam 3 and water 4
It is identical, so finally steam quality X in measurement annular space 10GFor：
Formula (10) is substituted into formula (6), show that electric capacity C is：
Therefore, electric capacity C just turns into mass dryness fraction XGFunction：C=f (XG).So water electrode capacitance C need to only be measured,
It just can obtain corresponding steam quality XG, the real-time measurement of underground steam mass dryness fraction can be realized using electric capacity instrument.
If Fig. 1 is the underground steam dryness measurement device structural representation in a kind of embodiment.As shown in figure 1, first
Annular space 1 forms steam-water flow passage, and the steam aqueous mixtures in the first annular space 1 are entered by the slot passage on slotted liner 2 first
Row initial gross separation, steam 3 and water 4 after separation enter steam-water separation chamber 5 that the second annular space 5 is formed.Pass through slotted liner 2
The choked flow effect of upper slot passage, the instability of fluid are substantially reduced, and bubble, steam 3 have now been substantially free of in water 4
In also be substantially be steam 3 entirely.
Now, it is divided into steam water mixed zone, water 4 (region) and (area of steam 3 in steam-water separation chamber (the second annular space 5)
Domain), then, the effect of upper communicating pipe 6 and lower communicating tube 7 by the second annular space 5, realize the secondary separation of steam 3 and water 4.
Specifically, water 4 enters measurement annular space 10 by lower communicating tube 7, and steam 3 is then by entering measurement annular space 10 upper communicating pipe 6.Root
According to the principle of linker, there is complete phase with tested steam 3 and the mixture of water 4 in steam 3 and the post of water 4 caused by measurement annular space 10
Same equivalent density.
Now, measure the steam 3 in annular space 10 and water 4 is in the state that is totally separated from, also, thus produce water 4 and steam
The boundary 15 of vapour 3.According to formula (11), the capacitance C of underground water electrode equivalent capacity sensor and the function of steam quality
Relation, therefore, the situation of change of underground steam dryness measurement device measurement underground steam mass dryness fraction have been directly changed measurement equivalent electric
Hold the capacitance variation situation of sensor, underground is conversed according to formula (11) by the capacitance for measuring equivalent capacity sensor
Steam quality, so as to obtain the situation of change of underground steam mass dryness fraction in real time.Utilize formula (6), underground water electrode equivalent electric
Hold the capacitance C and the face height h of 15 water of boundary 4 of sensor functional relation, so as to which the water surface of boundary 15 can also be obtained
Height h situation of change.
Herein cited any digital value all include between lower limit to higher limit with the lower value of an incremented and
The all values of upper value, the interval of at least two units between any lower value and any much higher value be present.For example, such as
Fruit elaborates that the quantity of part or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 20
To 80, more preferably from 30 to 70, then purpose is to illustrate that such as 15 to 85,22 are also clearly listed in the specification arrives
68th, 4 to 51,30 to 32 is equivalent.For the value less than 1, it is 0.0001,0.001,0.01,0.1 suitably to think a unit.
These are only intended to the example clearly expressed, it is believed that the numerical value enumerated between minimum and peak is possible to
Combination is all expressly set forth in the specification in a similar manner.
Unless otherwise indicated, all scopes all include all numerals between end points and end points.It is used together with scope
" about " or " approximation " be suitable for two end points of the scope.Thus, " about 20 to 30 " are intended to covering " about 20 to about
30 ", including at least the end points indicated.
All articles and reference disclosed, including patent application and publication, for various purposes by quoting knot
Together in this.Describe the term " substantially by ... forms " of combination should include determined by element, composition, part or step and reality
Other elements, composition, part or the step of the basic novel feature of the combination are not influenceed in matter.Using term "comprising" or
" comprising " describes the combination of element here, composition, part or step it is also contemplated that substantially by these elements, composition, part
Or the embodiment that step is formed.Here by using term " can with ", it is intended to which illustrate that " can with " include is described any
Attribute is all optional.
Multiple element, composition, part or step can be provided by single integrated component, composition, part or step.It is alternative
Ground, single integrated component, composition, part or step can be divided into multiple element, composition, part or the step of separation.It is used for
The open "a" or "an" for describing element, composition, part or step is not said to exclude other elements, composition, part
Or step.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
State, many embodiments and many applications outside the example provided all will be aobvious and easy for a person skilled in the art
See.Therefore, the scope of this teaching should not determine with reference to foregoing description, but should with reference to appended claims and this
The four corner of the equivalent that a little claims are possessed determines.It is for comprehensive purpose, all articles and special with reference to including
The disclosure of profit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in preceding claims
Any aspect is not intended to abandon the body matter, also should not be considered as inventor the theme is not thought of as it is disclosed
A part for utility model theme.
Claims (10)
- A kind of 1. underground steam dryness measurement device, it is characterised in that including：Steam steam-water separation unit；The steaming steam-water separation unit includes cylindrical chamber and in cylindrical cavity room and together The cylindrical measurement chamber that axle is set；The cylindrical chamber is in the cylindrical measurement chamber profile composition from annular space；It is coaxially disposed in the water electrode capacitance sensor probe in the cylinder measurement annular space；The water electrode capacitance sensor Probe includes cylindrical metal core and the insulating barrier being wrapped on the outside of the cylindrical metal core；The cylindrical measurement chamber Measurement annular space is formed outside the water electrode capacitance sensor is popped one's head in；The upper end connection measurement annular space of the separation annular space Upper end；The lower end of the lower end connection measurement annular space of the separation annular space；The water electrode capacitance sensor probe can be with institute The fluid stated in measurement annular space forms an equivalent capacitance sensor；For measuring the electric capacity instrument of the equivalent capacity sensor capacitance.
- 2. underground steam dryness measurement device as claimed in claim 1, it is characterised in that：The insulating barrier is ceramic coating.
- 3. underground steam dryness measurement device as claimed in claim 2, it is characterised in that：The thickness of the insulating barrier is 100- 300 microns.
- 4. underground steam dryness measurement device as claimed in claim 1, it is characterised in that：It is coaxially provided with the separation annular space Separating pipe；The separation annular space is divided into the first annular space and the second annular space by the separating pipe；First annular space, which is used to input, to be steamed Steam water interface；There is excessively stream hole in the separating pipe；The upper end of the upper end connection measurement annular space of second annular space； The lower end of the lower end connection measurement annular space of second annular space.
- 5. underground steam dryness measurement device as claimed in claim 4, it is characterised in that：The separating pipe is slotted liner.
- 6. underground steam dryness measurement device as claimed in claim 4, it is characterised in that：The upper end of second annular space passes through The upper end of the upper communicating pipe connection measurement annular space；The lower end of second annular space connects the measurement annular space by lower communicating tube Lower end.
- 7. underground steam dryness measurement device as claimed in claim 1, it is characterised in that：The wall of the cylindrical measurement chamber is Conductive material is formed, and the both positive and negative polarity of the electric capacity instrument connects the cylindrical metal core and the cylindrical measurement chamber respectively Wall.
- 8. underground steam dryness measurement device as claimed in claim 1, it is characterised in that also include：Connect with the electric capacity instrument The controller connect；The capacitance measured can be transferred to the controller by the electric capacity instrument.
- 9. underground steam dryness measurement device as claimed in claim 8, it is characterised in that the controller is arranged at outside well, And pass through electric capacity instrument described in cable connection.
- 10. underground steam dryness measurement device as claimed in claim 9, it is characterised in that the controller is additionally provided with aobvious Show component, the display module can show the steam quality that the controller calculates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720972954.8U CN207096161U (en) | 2017-08-04 | 2017-08-04 | Downhole Steam Dryness Measuring Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720972954.8U CN207096161U (en) | 2017-08-04 | 2017-08-04 | Downhole Steam Dryness Measuring Device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107389749A (en) * | 2017-08-04 | 2017-11-24 | 中国石油天然气股份有限公司 | Downhole Steam Dryness Measuring Device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389749A (en) * | 2017-08-04 | 2017-11-24 | 中国石油天然气股份有限公司 | Downhole Steam Dryness Measuring Device |
| CN107389749B (en) * | 2017-08-04 | 2024-03-01 | 中国石油天然气股份有限公司 | Underground steam dryness measuring device |
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