CN106979005A - A kind of dynamic liquid level height sensor and its application method suitable for biphase gas and liquid flow - Google Patents
A kind of dynamic liquid level height sensor and its application method suitable for biphase gas and liquid flow Download PDFInfo
- Publication number
- CN106979005A CN106979005A CN201710328194.1A CN201710328194A CN106979005A CN 106979005 A CN106979005 A CN 106979005A CN 201710328194 A CN201710328194 A CN 201710328194A CN 106979005 A CN106979005 A CN 106979005A
- Authority
- CN
- China
- Prior art keywords
- liquid level
- level height
- dynamic liquid
- height sensor
- shell body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 142
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000523 sample Substances 0.000 claims abstract description 67
- 239000011888 foil Substances 0.000 claims abstract description 44
- 239000012530 fluid Substances 0.000 claims abstract description 33
- 238000005259 measurement Methods 0.000 claims abstract description 21
- 210000004907 gland Anatomy 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 19
- 230000001681 protective effect Effects 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 12
- 238000004364 calculation method Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000003245 coal Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000006260 foam Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000000153 supplemental effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/04—Measuring depth or liquid level
- E21B47/047—Liquid level
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The present invention provides a kind of dynamic liquid level height sensor suitable for biphase gas and liquid flow, it includes seal head, seal receptacle, shell body and the base being sequentially connected, the dynamic liquid level height sensor also includes wire, circuit board, bubble probe, temp probe and foil gauge, the circuit board, bubble probe and temp probe are respectively positioned in shell body, the foil gauge is located in base, one end, bubble probe, foil gauge and the temp probe of the wire are connected with circuit board respectively, the other end connection terminal device of the wire.Present invention also offers a kind of application method of the dynamic liquid level height sensor, comprise the following steps：The oil pipe for being provided with dynamic liquid level height sensor is transferred to the lower section in underground hydrodynamic face, the pressure of the first height and well head air is obtained；The pressure of first height and well head air is input to terminal device；Measurement obtains Fluid pressure and average fluid density；Calculate dynamic liquid level height.The present invention can measure dynamic liquid level height in real time.
Description
Technical field
The present invention relates to Seam Gas Prospecting technical field, more particularly to a kind of dynamic liquid level height suitable for biphase gas and liquid flow
Sensor and its application method.
Background technology
The coal bed gas resource that China's coal bed gas rich reserves, wherein buried depth are shallower than 2000 meters is 36.81 tcms, about
The 15.3% of the whole world is accounted for, reserves occupy third place in the world.In order to make full use of coal bed gas resource, the Chinese government adds in recent years
The big R＆D intensity to Coal-seam Gas Recovery Technologies, and got out many mouthfuls of test wells to probe into the complete set technology of coal-bed gas exploitation,
But limited by technical conditions, the coal-bed gas exploitation well of China is still in the majority with peupendicular hole.
For coal-bed gas exploitation, due to the natural cranny development construction of coal seam reservoirs, cause coal seam gas production well needs
Drainage and step-down is carried out, in the process, underground water penetrates into mineshaft annulus jointly with coal bed gas, and gas-liquid is formed in mineshaft annulus
Two phase flow, thus causes the increase of mineshaft annulus dynamic liquid level height；The coal bed gas penetrated into mineshaft annulus is with bubble or gas column form
Rise in the presence of and along pit shaft, the coal bed gas of rising finally will be disengaged from mineshaft annulus liquid level, thus cause mineshaft annulus hydrodynamic face high
Degree declines；Changed in addition, the factor such as the water burst on stratum and leak also leads to mineshaft annulus dynamic liquid level height.Therefore, by
In the presence of above-mentioned numerous factors, cause mineshaft annulus dynamic liquid level height to occur dynamic change, be consequently formed hydrodynamic face.
For peupendicular hole, the dynamic liquid level height of mineshaft annulus is to formulate one of important parameter of mining technique, therefore
Dynamic liquid level height must in real time be measured, common Oil/gas Well liquid level gauging method includes floating drum mensuration, reflection sounding
Method and pressure detection method etc., but above-mentioned common method is due to installation question, design problem, potential safety hazard, measurement accuracy and nothing
The problems such as the real-time measurement of method, the need for can not adapting to the measurement in real time of coal bed gas extraction well liquid face.
The content of the invention
In view of this, dynamic liquid level height can be measured in real time, improve measurement accuracy the invention provides a kind of and be applied to
The dynamic liquid level height sensor of biphase gas and liquid flow, additionally provides one kind and measures dynamic liquid level height using the dynamic liquid level height sensor
Method.
The present invention provides a kind of dynamic liquid level height sensor suitable for biphase gas and liquid flow, the dynamic liquid level height sensor bag
Include the seal head being sequentially connected, seal receptacle, shell body and base, the dynamic liquid level height sensor also include wire, circuit board,
Bubble probe, temp probe and foil gauge, the circuit board, bubble probe and temp probe are respectively positioned in shell body, described to answer
Become piece to be located in base, the wire, bubble probe, temp probe and foil gauge are connected with circuit board respectively, the bubble is visited
Averag density of the pin to obtain fluid, the foil gauge is used to measurement temperature to measure Fluid pressure, the temp probe,
The temperature measured using the temp probe is modified to the pressure that foil gauge is measured, so as to eliminate the temperature drift of foil gauge.
Further, the shell body include shell body upper end and shell body lower end, the seal head and seal receptacle it is upper
End threaded connection, the lower end of the seal receptacle is connected with shell body threaded upper ends, and the shell body lower end is connected with whorl of base,
The junction of the seal head and seal receptacle is provided with the first rubber ring, and the upper end of the seal receptacle is provided with to place the first rubber
The junction of first groove of ring, the shell body upper end and seal receptacle is provided with sealing gasket, and the shell body upper end is provided with use
To place the second groove of sealing gasket, the junction of the shell body lower end and base is provided with rubber seal, the shell body
Lower end is stepped, and the rubber seal is placed at the stepped step of shell body lower end.
Further, one end of the wire sequentially passes through the centre bore and electricity of seal head, the first rubber ring and seal receptacle
Road plate connection, first rubber ring is compacted in the junction of seal head and seal receptacle, so that the first rubber ring is close to lead
Line and wire is sealed, the other end of wire connection terminal device.
Further, the inside of the shell body connects a deck, the internal whorl connection of the deck and shell body, institute
State and the first tapped blind hole is machined with deck, the circuit board is provided with first through hole, by the first through hole and first
Circuit board can be fixed on deck by insertion bolt in tapped blind hole, and the end face of the deck is machined with interior hexagonal groove, with side
Just unloading is carried out using inner hexagon spanner.
Further, a gland is connected on the shell body, the junction of the shell body and gland is provided with the second rubber
Ring, is provided with the 3rd groove to place the second rubber ring, the shell body on the shell body and is machined with the second screw thread
Blind hole and the second through hole, the bubble probe sequentially pass through after gland, the centre bore of the second rubber ring and the second through hole with circuit
Plate is connected, and the gland is provided with third through-hole, can be by gland by inserting screw in third through-hole and the second tapped blind hole
It is fixedly connected on shell body, while the gland compresses the second rubber ring to realize the sealing to bubble probe.
Further, a protective cover is also connected with the shell body, the protective cover is located at the top of gland, the protection
Cover is provided with fourth hole, can be fixedly connected with protective cover outside by inserting screw in fourth hole and the second tapped blind hole
On housing, the protective cover is to protect bubble probe.
Further, the 4th groove is machined with the base, is placed in the 4th groove with water-proof function
Foil gauge, the top of the foil gauge is provided with pressure ring, and the pressure ring is located at the junction of the inside of deck and shell body, the pressure
Ring to foil gauge to seal.
Further, the 3rd tapped blind hole is machined with the circuit board, is connected through a screw thread and revolves the temp probe
Enter in the 3rd tapped blind hole, so that the temp probe be connected with circuit board, data processing circuit connected on the circuit board,
The data processing circuit is to the data that handle foil gauge, bubble probe and temp probe are detected.
Present invention also offers a kind of application method of the dynamic liquid level height sensor suitable for biphase gas and liquid flow, including with
Lower step：
The dynamic liquid level height sensor is installed on oil pipe, then the oil pipe of dynamic liquid level height sensor will be installed
Transfer to the lower section in underground hydrodynamic face, obtain the first height, first height be dynamic liquid level height sensor mounting location away from
From the depth of well head, while obtaining the pressure of well head air；
The pressure of first height and well head air is input to terminal device；
Start dynamic liquid level height sensor, dynamic liquid level height sensor mounting location is obtained using the foil gauge measurement
Fluid pressure, the fluid between dynamic liquid level height sensor mounting location and dynamic liquid level height is obtained using the bubble probe
Averag density, the Fluid pressure is transferred to terminal device with averag density；
The terminal device is handled the Fluid pressure and averag density that receive, obtains dynamic liquid level height.
Further, the dynamic liquid level height is obtained especially by following steps：
The pressure that liquid is produced in dynamic liquid level height sensor mounting location is calculated, the liquid is sensed in dynamic liquid level height
The calculation formula of pressure that device installation site is produced is：
P2=P1-P0
In formula, P2The pressure produced for liquid in dynamic liquid level height sensor mounting location, P1To be measured using foil gauge
The Fluid pressure of the dynamic liquid level height sensor mounting location arrived, P0For the pressure of well head air；
The second height is calculated, second height is depth of the hydrodynamic identity distance from dynamic liquid level height sensor mounting location,
The calculation formula of second height is：
h2=P2/ρg
In formula, h2For the second height, ρ is the averag density obtained using bubble probe, and g is gravity constant；
Dynamic liquid level height is calculated, the calculation formula of the dynamic liquid level height is：
h3=h1-h2
In formula, h3For dynamic liquid level height, h1For the first height.
The beneficial effect that the technical scheme that the present invention is provided is brought is：
1. the dynamic liquid level height sensor construction that the present invention is provided is simple, easy for installation, the present invention by seal head and
The junction of seal receptacle sets the first rubber ring, sealing gasket is set in shell body upper end and the junction of seal receptacle, in shell body
Lower end and the junction of base set rubber seal, and the sealing of dynamic liquid level height sensor has been effectively ensured, and reduce safety
Hidden danger；
2. the present invention is sealed by using the first rubber ring to wire, bubble probe is carried out using the second rubber ring
Sealing, while protecting bubble probe using protective cover, is sealed, it is to avoid dynamic liquid level height sensor using pressure ring to foil gauge
Influenceed by flow of fluid；
3. the present invention is modified by temp probe to the pressure that foil gauge is measured, the temperature of foil gauge can be effectively eliminated
Drift, the present invention obtains the averag density of fluid using bubble probe, and reduction causes due to being influenceed by mineshaft annulus foam section
Error, efficiently solve existing measuring method measurement bubbles section dynamic liquid level height error it is larger the problem of, improve dynamic
The measurement accuracy of liquid level；
4. application method step that the present invention is provided is simple, be easy to calculate, measurement dynamic liquid level height in real time can be realized.
Brief description of the drawings
Fig. 1 is a kind of front view of dynamic liquid level height sensor suitable for biphase gas and liquid flow of the invention.
Fig. 2 is a kind of right view of dynamic liquid level height sensor suitable for biphase gas and liquid flow of the invention.
Fig. 3 is a kind of top view of dynamic liquid level height sensor suitable for biphase gas and liquid flow of the invention.
Fig. 4 is a kind of diagrammatic cross-section of dynamic liquid level height sensor suitable for biphase gas and liquid flow of the invention.
Fig. 5 is a kind of deck top view of dynamic liquid level height sensor suitable for biphase gas and liquid flow of the invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is further described.
Fig. 1 to Fig. 5 is refer to, The embodiment provides a kind of dynamic liquid level height biography suitable for biphase gas and liquid flow
Sensor, it includes seal head 1, seal receptacle 2, shell body 3 and the base 4 being sequentially connected, and shell body 3 includes the He of shell body upper end 31
Shell body lower end 32, shell body upper end 31 and shell body lower end 32 are threaded, the upper end spiral shell of seal head 1 and seal receptacle 2
Line is connected, and the lower end of seal receptacle 2 is threadedly coupled with shell body upper end 31, and shell body lower end 32 is threadedly coupled with base 4, seal head
1 and the junction of seal receptacle 2 be provided with the first rubber ring 22, the upper end of seal receptacle 2 be provided with to place the first rubber ring 22 the
One groove 21, the first groove 21 is shaped as taper, and the junction of shell body upper end 31 and seal receptacle 2 is provided with sealing gasket 312, lead to
The junction of shell body upper end 31 and seal receptacle 2 can be sealed by crossing sealing gasket 312, and shell body upper end 31 is provided with to put
The second groove 311 of sealing gasket 312 is put, shell body lower end 32 and the junction of base 4 are provided with rubber seal 321, pass through rubber
Glue sealing ring 321 can be sealed shell body lower end 32 and the junction of base 4, and shell body lower end 32 is stepped, by rubber
Glue sealing ring 321 is placed at the stepped step of shell body lower end 32, in an embodiment, and rubber seal 321 is using O-shaped
Circle.
The dynamic liquid level height sensor also includes wire 5, circuit board 6, bubble probe 7, temp probe 8 and foil gauge 9, electricity
Road plate 6, bubble probe 7 and temp probe 8 are respectively positioned in shell body 3, and one end of wire 5 sequentially passes through seal head 1, the first rubber
The centre bore of ring 22 and seal receptacle 2 is connected with circuit board 6, and the first rubber ring 22 is pressed in the junction of seal head 1 and seal receptacle 2
Tightly, so that the first rubber ring 22 is close to wire 5 and wire 5 is sealed, the other end of wire 5 connects a terminal device
101。
Averag density of the bubble probe 7 to obtain fluid, foil gauge 9 is used to measure Fluid pressure, temp probe 8
Measurement temperature, the pressure that the temperature measured using temp probe 8 is measured to foil gauge 9 is modified, so as to eliminate foil gauge 9
Temperature drift.
The inside of shell body 3 connects a deck 33, and deck 33 is connected with the internal whorl of shell body 3, is processed on deck 33
There is the first tapped blind hole 331, circuit board 6 is provided with first through hole 61, by the tapped blind hole 331 of first through hole 61 and first
Circuit board 6 can be fixed on deck 33 by insertion bolt.
Fig. 5 is refer to, the end face of deck 33 is machined with interior hexagonal groove 332, twisted with facilitating using inner hexagon spanner
Unload.
A gland 352 is fixedly connected with shell body 3, the junction of shell body 3 and gland 352 is provided with the second rubber ring 351,
It is provided with the 3rd groove 35 to place the second rubber ring 351, shell body 3 that to be also machined with the second screw thread blind on shell body 3
The through hole 36 of hole 34 and second, bubble probe 7 is sequentially passed through after gland 352, the centre bore of the second rubber ring 351 and the second through hole 36
It is connected with circuit board 6, gland 352 is provided with third through-hole 3521, by the tapped blind hole 34 of third through-hole 3521 and second
Gland 352 can be fixedly connected on shell body 3 by insertion screw, while gland 352 compresses the second rubber ring 351 to realize
Sealing to bubble probe 7.
A protective cover 353 is also fixedly connected with shell body 3, protective cover 353 is located on the top of gland 352, protective cover 353
Provided with fourth hole 3531, protective cover 353 can be consolidated by inserting screw in the tapped blind hole 34 of fourth hole 3531 and second
Surely it is connected on shell body 3, protective cover 353 is to protect bubble probe 7.
It refer to and be machined with the 3rd tapped blind hole 62 on Fig. 4, circuit board 6, be connected through a screw thread and temp probe 8 is screwed in
In three tapped blind holes 62, so that temp probe 8 be connected with circuit board 6.
The 4th groove 41 is machined with base 4, the foil gauge 9 with water-proof function, strain are placed in the 4th groove 41
Piece 9 is connected with circuit board 6, and pressure ring 333 is provided with the top of foil gauge 9, and pressure ring 333 is located at the inside of deck 33 and shell body 3
Junction, foil gauge 9 is sealed to realize.
Data processing circuit 63 is connected with circuit board 6, data processing circuit 63 is to handle foil gauge 9, bubble probe 7
The data detected with temp probe 8.
The operation principle of the dynamic liquid level height sensor is：Pressure of the foil gauge 9 by biphase gas and liquid flow in mineshaft annulus
Influence and be deformed, pressure is more big, deform bigger, and there is linear relationship between pressure value and deflection, by strain
The deflection of piece 9, which carries out demarcation, can obtain the pressure value of fluid, simultaneously because foil gauge 9 is more sensitive to temperature, easily produce
Temperature drift, therefore temperature is measured in real time using temp probe 8, the temperature drift of foil gauge 9 is entered according to the measurement result of temperature
Row amendment, the data that foil gauge 9 and temp probe 8 are measured are transferred to data processing circuit 63, and data processing circuit 63 can
Carry out the processing of data；Because coal bed gas pit shaft annular fluid is biphase gas and liquid flow, if entered using general density sensor
Row measurement, then measurement result is fluid density, it is impossible to liquid and the averag density after gas mixing are obtained, by biphase gas and liquid flow root
It is different flow patterns according to the different demarcation of gas content, there is corresponding relation between the flow pattern and fluid density of fluid, utilize bubble
Probe 7 can detect the supplemental characteristic of fluid in real time, and supplemental characteristic is transferred to data processing circuit 63, and data processing circuit 63 leads to
Cross computing to judge the flow pattern of fluid, the result judged according to flow pattern obtains liquid and the averag density after gas mixing.
Embodiments of the invention additionally provide a kind of application method of dynamic liquid level height sensor：Comprise the following steps：
S101, dynamic liquid level height sensor is installed on oil pipe, then will be provided with the oil of dynamic liquid level height sensor
Pipe transfers to the lower section in underground hydrodynamic face, obtains the first height h1, the first height h1For dynamic liquid level height sensor mounting location away from
From the depth of well head, while obtaining the pressure P of well head air0。
S102, by the first height h1With the pressure P of well head air0It is input to terminal device 101；
S103, starts dynamic liquid level height sensor, and dynamic liquid level height sensor mounting location is obtained using the measurement of foil gauge 9
Fluid pressure P1, the fluid between dynamic liquid level height sensor mounting location and dynamic liquid level height is obtained using bubble probe 7
Averag density ρ, Fluid pressure P1Terminal device 101 is transferred to averag density ρ；
S104, the Fluid pressure P that 101 pairs of terminal device is received1With averag density ρ processing, hydrodynamic face is obtained high
Spend h3；
Dynamic liquid level height h3Obtained especially by following steps：
The pressure P that 4.1 calculating liquid are produced in dynamic liquid level height sensor mounting location2, liquid is in dynamic liquid level height biography
The pressure P that sensor installation site is produced2Calculation formula be：
P2=P1-P0；
4.2 calculate the second height h2, the second height h2Depth for hydrodynamic identity distance from dynamic liquid level height sensor mounting location
Degree, the second height h2Calculation formula be：
h2=P2/ρg
In formula, ρ is the averag density obtained using bubble probe 7, and g is gravity constant；
4.3 calculate dynamic liquid level height h3, dynamic liquid level height h3Calculation formula be：
h3=h1-h2。
The dynamic liquid level height sensor construction that the present invention is provided is simple, easy for installation, and the present invention passes through in seal head 1 and close
The junction for sealing seat 2 sets the first rubber ring 22, and sealing gasket 312 is set in shell body upper end 31 and the junction of seal receptacle 2,
Shell body lower end 32 and the junction of base 4 set rubber seal 321, and the sealing of dynamic liquid level height sensor has been effectively ensured
Property, reduce potential safety hazard；The present invention is sealed by using the first rubber ring 22 to wire 5, using 351 pairs of the second rubber ring
Bubble probe 7 is sealed, while protecting bubble probe 7 using protective cover 353, foil gauge 9 is carried out using pressure ring 333 close
Envelope, it is to avoid dynamic liquid level height sensor is influenceed by flow of fluid；What the present invention was measured by temp probe 8 to foil gauge 9
Pressure is modified, and can effectively eliminate the temperature drift of foil gauge 9, and the present invention obtains the averag density of fluid using bubble probe 7,
Reduce the error caused by being influenceed by mineshaft annulus foam section, efficiently solve existing measuring method measurement bubbles section
Dynamic liquid level height error it is larger the problem of, improve the measurement accuracy of dynamic liquid level height；The application method step that the present invention is provided
It is rapid simple, be easy to calculate, measurement dynamic liquid level height in real time can be realized.
Herein, the involved noun of locality such as forward and backward, upper and lower is to be located at parts in accompanying drawing in figure and zero
The position of part each other is intended merely to the clear of expression technology scheme and conveniently come what is defined.It should be appreciated that the noun of locality
Use should not limit the claimed scope of the application.
In the case where not conflicting, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of dynamic liquid level height sensor suitable for biphase gas and liquid flow, it is characterised in that the dynamic liquid level height sensor bag
Include the seal head being sequentially connected, seal receptacle, shell body and base, the dynamic liquid level height sensor also include wire, circuit board,
Bubble probe, temp probe and foil gauge, the circuit board, bubble probe and temp probe are respectively positioned in shell body, described to answer
Become piece to be located in base, the wire, bubble probe, temp probe and foil gauge are connected with circuit board respectively, the bubble is visited
Averag density of the pin to obtain fluid, the foil gauge is used to measurement temperature to measure Fluid pressure, the temp probe,
The temperature measured using the temp probe is modified to the pressure that foil gauge is measured, so as to eliminate the temperature drift of foil gauge.
2. it is applied to the dynamic liquid level height sensor of biphase gas and liquid flow as claimed in claim 1, it is characterised in that the shell
Body includes shell body upper end and shell body lower end, and the threaded upper ends of the seal head and seal receptacle are connected, under the seal receptacle
End is connected with shell body threaded upper ends, and the shell body lower end is connected with whorl of base, the connection of the seal head and seal receptacle
Place is provided with the first rubber ring, and the upper end of the seal receptacle is provided with the first groove to place the first rubber ring, the shell body
Upper end and the junction of seal receptacle are provided with sealing gasket, and the shell body upper end is provided with the second groove to place sealing gasket,
The shell body lower end and the junction of base are provided with rubber seal, and the shell body lower end is stepped, by the rubber
Sealing ring is placed at the stepped step of shell body lower end.
3. it is applied to the dynamic liquid level height sensor of biphase gas and liquid flow as claimed in claim 2, it is characterised in that the wire
One end sequentially pass through the centre bore of seal head, the first rubber ring and seal receptacle and be connected with circuit board, first rubber ring exists
The junction of seal head and seal receptacle is compacted, so that the first rubber ring is close to wire and wire is sealed, it is described to lead
The other end connection terminal device of line.
4. it is applied to the dynamic liquid level height sensor of biphase gas and liquid flow as claimed in claim 1, it is characterised in that the shell
The inside of body connects a deck, and the internal whorl of the deck and shell body is connected, and it is blind to be machined with the first screw thread on the deck
Hole, the circuit board is provided with first through hole, can be by electricity by inserting bolt in the first through hole and the first tapped blind hole
Road plate is fixed on deck, and the end face of the deck is machined with interior hexagonal groove, and unloading is carried out using inner hexagon spanner to facilitate.
5. it is applied to the dynamic liquid level height sensor of biphase gas and liquid flow as claimed in claim 1, it is characterised in that the shell
A gland is connected on body, the junction of the shell body and gland is provided with the second rubber ring, is provided with and is used on the shell body
Place and the second tapped blind hole and the second through hole are machined with the 3rd groove of the second rubber ring, the shell body, the bubble is visited
Pin is connected after sequentially passing through gland, the centre bore of the second rubber ring and the second through hole with circuit board, and the gland is provided with the 3rd
Gland, can be fixedly connected on shell body, while institute by through hole by inserting screw in third through-hole and the second tapped blind hole
Gland is stated to compress the second rubber ring to realize the sealing to bubble probe.
6. it is applied to the dynamic liquid level height sensor of biphase gas and liquid flow as claimed in claim 5, it is characterised in that the shell
A protective cover is also connected with body, the protective cover is located at the top of gland, the protective cover is provided with fourth hole, by the
Protective cover can be fixedly connected on shell body by insertion screw in four through holes and the second tapped blind hole, and the protective cover is to protect
Bubble probe.
7. it is applied to the dynamic liquid level height sensor of biphase gas and liquid flow as claimed in claim 1, it is characterised in that the base
The 4th groove is inside machined with, places and is set above the foil gauge with water-proof function, the foil gauge in the 4th groove
There is pressure ring, the pressure ring is located at the junction of the inside of deck and shell body, and the pressure ring to foil gauge to seal.
8. it is applied to the dynamic liquid level height sensor of biphase gas and liquid flow as claimed in claim 1, it is characterised in that the circuit
The 3rd tapped blind hole is machined with plate, is connected through a screw thread and screws in the temp probe in the 3rd tapped blind hole, so that by institute
State temp probe to be connected with circuit board, data processing circuit is connected on the circuit board, the data processing circuit is to handle
The data that foil gauge, bubble probe and temp probe are detected.
9. a kind of user of the dynamic liquid level height sensor suitable for biphase gas and liquid flow described in any one of claim 1 to 8
Method, it is characterised in that comprise the following steps：
The dynamic liquid level height sensor is installed on oil pipe, then the oil pipe for being provided with dynamic liquid level height sensor is transferred
To the lower section in underground hydrodynamic face, the first height is obtained, first height is dynamic liquid level height sensor mounting location apart from well
The depth of mouth, while obtaining the pressure of well head air；
The pressure of first height and well head air is input to terminal device；
Start dynamic liquid level height sensor, the fluid of dynamic liquid level height sensor mounting location is obtained using the foil gauge measurement
Pressure, being averaged for the fluid between dynamic liquid level height sensor mounting location and dynamic liquid level height is obtained using the bubble probe
Density, the Fluid pressure is transferred to terminal device with averag density；
The terminal device is handled the Fluid pressure and averag density that receive, obtains dynamic liquid level height.
10. a kind of application method of the dynamic liquid level height sensor as claimed in claim 9 suitable for biphase gas and liquid flow, it is special
Levy and be, the dynamic liquid level height is obtained especially by following steps：
The pressure that liquid is produced in dynamic liquid level height sensor mounting location is calculated, the liquid is pacified in dynamic liquid level height sensor
The calculation formula of pressure that holding position is produced is：
P2=P1-P0
In formula, P2The pressure produced for liquid in dynamic liquid level height sensor mounting location, P1Obtained using foil gauge measurement
The Fluid pressure of dynamic liquid level height sensor mounting location, P0For the pressure of well head air；
The second height is calculated, second height is depth of the hydrodynamic identity distance from dynamic liquid level height sensor mounting location, described
The calculation formula of second height is：
h2=P2/ρg
In formula, h2For the second height, ρ is the averag density obtained using bubble probe, and g is gravity constant；
Dynamic liquid level height is calculated, the calculation formula of the dynamic liquid level height is：
h3=h1-h2
In formula, h3For dynamic liquid level height, h1For the first height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710328194.1A CN106979005B (en) | 2017-05-11 | 2017-05-11 | Working fluid level height sensor suitable for gas-liquid two-phase flow and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710328194.1A CN106979005B (en) | 2017-05-11 | 2017-05-11 | Working fluid level height sensor suitable for gas-liquid two-phase flow and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106979005A true CN106979005A (en) | 2017-07-25 |
| CN106979005B CN106979005B (en) | 2023-04-07 |
Family
ID=59341821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710328194.1A Active CN106979005B (en) | 2017-05-11 | 2017-05-11 | Working fluid level height sensor suitable for gas-liquid two-phase flow and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106979005B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113721A (en) * | 2018-07-24 | 2019-01-01 | 中国石油天然气股份有限公司 | A kind of high temperature well oil well pump lower-continuous mapping measuring system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202064933U (en) * | 2011-06-01 | 2011-12-07 | 中国石油天然气股份有限公司 | Multi-parameter monitoring device for oil well |
| CN202250044U (en) * | 2011-08-26 | 2012-05-30 | 廖正佳 | Automatic collecting instrument for dynamic liquid level of oil well |
| CN102877832A (en) * | 2012-09-14 | 2013-01-16 | 中国石油天然气股份有限公司 | Method and system for measuring movable liquid surface of oil well |
| CN103132989A (en) * | 2013-02-01 | 2013-06-05 | 中联煤层气国家工程研究中心有限责任公司 | Method and system for calculating coal-bed gas well working fluid level |
| US20140150546A1 (en) * | 2011-06-13 | 2014-06-05 | Schlumberger Technology Corporation | Methods and Apparatus for Analyzing Operations |
| CN104389586A (en) * | 2014-10-20 | 2015-03-04 | 重庆科技学院 | Oil well working fluid level measuring device and method |
-
2017
- 2017-05-11 CN CN201710328194.1A patent/CN106979005B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202064933U (en) * | 2011-06-01 | 2011-12-07 | 中国石油天然气股份有限公司 | Multi-parameter monitoring device for oil well |
| US20140150546A1 (en) * | 2011-06-13 | 2014-06-05 | Schlumberger Technology Corporation | Methods and Apparatus for Analyzing Operations |
| CN202250044U (en) * | 2011-08-26 | 2012-05-30 | 廖正佳 | Automatic collecting instrument for dynamic liquid level of oil well |
| CN102877832A (en) * | 2012-09-14 | 2013-01-16 | 中国石油天然气股份有限公司 | Method and system for measuring movable liquid surface of oil well |
| CN103132989A (en) * | 2013-02-01 | 2013-06-05 | 中联煤层气国家工程研究中心有限责任公司 | Method and system for calculating coal-bed gas well working fluid level |
| CN104389586A (en) * | 2014-10-20 | 2015-03-04 | 重庆科技学院 | Oil well working fluid level measuring device and method |
Non-Patent Citations (1)
| Title |
|---|
| 吴川: "煤层气合层排采井下工况参数实时探测技术研究" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113721A (en) * | 2018-07-24 | 2019-01-01 | 中国石油天然气股份有限公司 | A kind of high temperature well oil well pump lower-continuous mapping measuring system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106979005B (en) | 2023-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103411868B (en) | A kind of method of testing of Permeability Coefficent in Coal Seam | |
| CN201464133U (en) | Sleeve pipe and oil pipe joint leakage rate infrared radiation detection apparatus for test | |
| CN1131416C (en) | Strain monitoring system | |
| CN106052629B (en) | A kind of coal seam with gas dilatancy measurement method | |
| CN106979005A (en) | A kind of dynamic liquid level height sensor and its application method suitable for biphase gas and liquid flow | |
| CN107101678A (en) | A kind of two-phase flow sensor and its application method based on conducting probe | |
| CN205808394U (en) | A kind of coal seam with gas dilatancy measurement apparatus | |
| CN206888973U (en) | A kind of dynamic liquid level height sensor suitable for biphase gas and liquid flow | |
| CN105971589A (en) | Coalbed methane downhole pressure detection device | |
| CN205618151U (en) | Pressure measurement in pit | |
| CN205370556U (en) | Moisture coal seam automatic drainage type gas piezometry device | |
| CN205879259U (en) | Two -phase flow measuring device | |
| CN207526492U (en) | Dragging tube type horizontal well temperature and pressure section plane test device | |
| CN206876227U (en) | A kind of two-phase flow sensor based on conducting probe | |
| CN104847337B (en) | Geological drilling well temperature inserting tube | |
| CN207123347U (en) | A kind of flexible fluid injection probe unit | |
| CN105223007B (en) | Oil/gas Well rupture disk performance test evaluating apparatus | |
| CN214503289U (en) | Water pressure test device | |
| CN110374584B (en) | Visual detection method for roadway loosening ring and drilled hole air leakage area | |
| CN207569550U (en) | A kind of natural gas line conveys gas leak detection device | |
| CN207600692U (en) | A kind of positive seal system safety testing device | |
| CN205617308U (en) | Pore water pressure detector | |
| CN112129360A (en) | Device and method for measuring gas extraction pipeline flow | |
| CN207600694U (en) | A kind of integrated sealing system safety testing device of LWD | |
| CN105223224B (en) | Compressible liquid performance test evaluating apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |