CN108019200A - A kind of non-collective flow liquid producing profile log instrument - Google Patents
A kind of non-collective flow liquid producing profile log instrument Download PDFInfo
- Publication number
- CN108019200A CN108019200A CN201711483028.5A CN201711483028A CN108019200A CN 108019200 A CN108019200 A CN 108019200A CN 201711483028 A CN201711483028 A CN 201711483028A CN 108019200 A CN108019200 A CN 108019200A
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- China
- Prior art keywords
- liquid producing
- flow liquid
- producing profile
- sensor
- profile log
- Prior art date
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- 239000007788 liquid Substances 0.000 title claims abstract description 27
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 13
- 230000005284 excitation Effects 0.000 claims description 10
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 239000010437 gem Substances 0.000 claims 1
- 229910001751 gemstone Inorganic materials 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 12
- 239000012530 fluid Substances 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000003129 oil well Substances 0.000 abstract description 8
- 238000010924 continuous production Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000009530 blood pressure measurement Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052594 sapphire Inorganic materials 0.000 description 4
- 239000010980 sapphire Substances 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 229910000828 alnico Inorganic materials 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000020681 well water Nutrition 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
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)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The present invention provides a kind of non-collective flow liquid producing profile log instrument, including：Tool body, the tool body are connected with thermal flowmeter, outer-flowing type moisture sensor；The outer-flowing type moisture sensor is cylindrical, and a pair of exciting is had on cylindrical surface, and middle part is equipped with a pair of of measuring electrode.The thermal flowmeter that the present invention uses have the advantages that reliability it is high, without movable member, low discharge measurement can be carried out, can overcome turbine flowmeter there are the shortcomings that, can complete flow rate test without current collecting umbrella；The present invention uses outer-flowing type moisture sensor, when fluid can complete water cut test when sensor external flows through, the opposite logging instrument scheme with needing current collecting umbrella in the prior art, without current collecting umbrella, it can realize to carrying out serial section test, the test assignment for the continuous production profile that can just complete full well oil layer section that can once go into the well to oil well interval.
Description
Technical field
The present invention relates to oil technical field of measurement and test, more particularly to a kind of non-collective flow liquid producing profile log instrument.
Background technology
With the Persisting exploitation in each oil field, many oil wells are in high water cut stage.Therefore, in order to improve crude oil production
Efficiency is, it is necessary in real time be detected the condition of production of oil well.Production profile is a critically important monitoring parameters, especially
The accurate measurement of the moisture content and Liquid output of high-water-cut oil-producing well.Understand oily capacity of well, estimate crude oil yield, find oil
Well water outlet, fuel-displaced layer position, predict the exploitation service life of oil well, evaluate the extraction value of oil reservoir, formulate oil field production measure tool
It is significant.
At present, the production logging instrument for being widely used in high-moisture percentage measurement is impedance method moisture content logging instrument, its underground contains
The measurement of water rate uses impedance transducer, and moisture content is determined by the impedance variations of mixed phase oil-water media in measurement sensor.Should
Instrument is adapted to work under conditions of water is continuous phase, and the change response to moisture content is sensitive, has repeated consistent well
Property, reliable moisture content information can be provided.
However, existing moisture content meter measures fluid flow using turbine flowmeter, can not due to starting the requirement of discharge capacity
Low discharge measurement is carried out, to increase fluid-flow rate, generally use current collecting umbrella is by grease mixed phase liquid manifold to central flowbore
It is interior, moisture sensor and turbine flow transducer are installed in central flowbore, measurement work can be completed.Due to depositing for current collecting umbrella
Test can only stopped point by point during underground logging, for the close oil reservoir of neighbor distance, test is extremely difficult.
Therefore, how a kind of non-collective flow liquid producing profile log instrument is provided, can the oil reservoir close to neighbor distance survey
Examination, is those skilled in the art's urgent problem to be solved.
The content of the invention
In view of this, can be to neighbor distance it is an object of the invention to provide a kind of non-collective flow liquid producing profile log instrument
Close oil reservoir is tested.Its concrete scheme is as follows：
A kind of non-collective flow liquid producing profile log instrument, including：Tool body, the tool body are connected with heat type flow quantity
Meter, outer-flowing type moisture sensor；The outer-flowing type moisture sensor is cylindrical, and a pair of of excitation electricity is had on cylindrical surface
Pole, middle part are equipped with a pair of of measuring electrode.
Preferably, the excitation electrode, the measuring electrode are titanium alloy electrode.
Preferably, the thermal flowmeter includes：Flow meter body and the environment temperature on the flow meter body
Spend sensor, flow speed temperature sensor, heat source generator.
Preferably, the environment temperature sensor, the flow speed temperature sensor are Pt1000 platinum sensors.
Preferably, the metal seal of tube that the environment temperature sensor, the flow speed temperature sensor are closed by one end
Welding and the tool body.
Preferably, further include, arranged on the centralizer of the tool body upper and lower ends.
Preferably, the cable connector arranged on the logging instrument top is circumference symmetrical structure.
Preferably, further include, arranged on the pressure sensor of the tool body.
Preferably, the pressure sensor is sapphire pressure sensor.
Preferably, the logging instrument is equipped with signal acquisition circuit, and the signal acquisition circuit includes amplifying circuit and 24
Analog-digital converter, for gathering the signal of each sensor.
The present invention provides a kind of non-collective flow liquid producing profile log instrument, including：Tool body, the tool body connection
There are thermal flowmeter, outer-flowing type moisture sensor；The outer-flowing type moisture sensor is cylindrical, is had on cylindrical surface
A pair of exciting, middle part are equipped with a pair of of measuring electrode.The thermal flowmeter that the present invention uses has reliability height, without movable part
Part, can carry out the advantages that low discharge measurement, can overcome turbine flowmeter there are the shortcomings that, can complete to flow without current collecting umbrella
Measure examination；The present invention uses outer-flowing type moisture sensor, when fluid can complete moisture content when sensor external flows through
Test, the opposite logging instrument scheme with needing current collecting umbrella in the prior art, without current collecting umbrella, can realize to oil well interval into
Row serial section is tested, the test assignment for the continuous production profile that can just complete full well oil layer section that can once go into the well.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
A kind of non-collective flow liquid producing profile log instrument structure diagram that Fig. 1 is provided by the specific embodiment of the invention；
The thermal flow rate sensor structure diagram that Fig. 2 is provided by the specific embodiment of the invention；
The outer-flowing type moisture sensor structure diagram that Fig. 3 is provided by the specific embodiment of the invention；
The tool body structure diagram that Fig. 4 is provided by the specific embodiment of the invention.
Wherein：1- thermal flow rate sensors；2- outer-flowing type moisture sensors；3- tool bodies；4- centralizers；11-
Flow sensor skeleton；12- environment temperature sensors；13- flow speed temperature sensors；14- heat source generators；21- moisture content passes
Sensor skeleton；22- encourages electrode；23- measuring electrodes；31- pressure measurement circuits；32- magnetic locators；321- alnico magnets；322-
Electrical pure iron coil rack；323- high-temperature resistant enamelled wire magnetic induction coils；324- not magnetic conduction outer barrels；33- electronic circuit circuits；
34- cable connectors；331- signal acquisition circuits；332- invariable power circuits；333- field circuits；334- data transmission circuits；
335- governor circuits.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
Please refer to Fig.1, a kind of non-collective flow liquid producing profile log instrument structure that Fig. 1 is provided by the specific embodiment of the invention
Schematic diagram；The thermal flow rate sensor structure diagram that Fig. 2 is provided by the specific embodiment of the invention；Fig. 3 has for the present invention
The outer-flowing type moisture sensor structure diagram that body embodiment is provided.
A kind of non-collective flow liquid producing profile log instrument, including：Tool body 3, the tool body 3 are connected with hot type stream
Gauge 1, outer-flowing type moisture sensor 2；The outer-flowing type moisture sensor 2 is cylindrical, and a pair is had on cylindrical surface
Electrode 23 is encouraged, middle part is equipped with a pair of of measuring electrode 22.
The thermal flowmeter that the specific embodiment of the invention uses have reliability it is high, without movable member, low stream can be carried out
The advantages that measurement, can overcome turbine flowmeter there are the shortcomings that, can complete flow rate test without current collecting umbrella；The present invention
Embodiment uses outer-flowing type moisture sensor, is surveyed when fluid can complete moisture content when sensor external flows through
Examination, the opposite logging instrument scheme with needing current collecting umbrella in the prior art, without current collecting umbrella, can realize to being carried out to oil well interval
Serial section is tested, the test assignment for the continuous production profile that can just complete full well oil layer section that can once go into the well.
Further, in a kind of embodiment, the thermal flowmeter 1 includes：Flow meter body and it is arranged on
Environment temperature sensor, flow speed temperature sensor, heat source generator on the flow meter body.Can be by the environment temperature
Sensor, the flow speed temperature sensor are disposed as Pt1000 platinum sensors.Pt1000 sensors are to utilize platinum resistance
Resistance value vary with temperature and change and carry out thermometric in the characteristic of certain functional relation.When mounted, for mode temperature
Sensor is damaged, the metal tube that can close the environment temperature sensor, the flow speed temperature sensor by one end
Sealing welding and the tool body.
Specifically, in the embodiment of the present invention, the thermal flow rate sensor 1, including,：Flow sensor skeleton 11, environment
Temperature sensor 12, flow speed temperature sensor 13, heat source generator 14.The flow sensor skeleton 11 is made of stainless steel
Form, and be designed to tilt perforate mode, the environment temperature sensor is installed in 11 perforates of flow sensor skeleton
12, in order to measure the environment temperature of fluid.The flow speed temperature sensing is also equipped with flow sensor skeleton 11
Device 13 and the heat source generator 14, the flow speed temperature sensor 13 measure the temperature of the heat source generator 14 with fluid stream
The situation of change of speed, invariable power power supply is carried out by invariable power circuit 332 to the heat source generator 14.Wherein, the hot type stream
In quantity sensor 1, the environment temperature sensor 12 is specially Pt1000 platinum sensors, and made installed in stainless steel
With in Packed tube-like envelope.The flow speed temperature sensor 13 equally uses Pt1000 platinum sensors, using not
Become rusty steel tubular shell.The heat source generator 14 is entwined by resistive platinum wire on ceramic rod, it is sensed with flow speed temperature
Device 13 is placed in same stainless steel tube-like envelope.
In a kind of embodiment, outer-flowing type moisture sensor 2, including moisture sensor skeleton 21, excitation
Electrode 22, measuring electrode 23.The excitation electrode 23 of the outer-flowing type moisture sensor 2, the measuring electrode 22 can be set
It is set to titanium alloy electrode.Wherein, the moisture sensor skeleton 21 is made by cylindrical conductive substance, is provided with thereon
The electrode retaining collar that four titanium alloys make, two of which are the excitation electrode 22, and two are the measuring electrode 23.The excitation
Circuit 333 is provided with certain frequency and the exciting current of amplitude with constant-current source to the excitation electrode 22, and exciting current passes through sensing
The excitation electrode 22 of device is applied to tested region, establishes Sensitive Current field distribution.The measuring electrode 23 is placed in described sharp
Encourage in the electric field between electrode 22, moisture content is determined by the impedance variations of the mixed phase oil-water media of measurement sensor outflow.
Under the conditions of water is continuous phase, as fluid flows therethrough, the random change of mixed phase oil-water media ratio, will cause fluid to mix in fluid
The impedance of phase oil-water media changes, and the measuring electrode 23 will detect this change, and be output to the signal acquisition
In circuit 331.
On the basis of above-mentioned embodiment, in the present embodiment, tool body 3 successively include pressure measurement circuit 31,
Magnetic locator 32, electronic circuit circuit 33, cable connector 34.
Can be sapphire by the pressure sensor as shown in figure 4, being equipped with pressure sensor in the tool body 3
Pressure sensor.Specifically, pilot inlet opening is installed in 31 radial side of pressure measurement circuit, is connected to the pressure measurement circuit
Sapphire pressure sensor on 31 inside.The pressure sensor is the semiconductor sensitive element manufactured using silicon-on-sapphire,
Sense oily borehole pressure by logging instrument pressure inlet opening to change.
As shown in figure 4, the magnetic locator 32 is by high temperature resistant alnico magnet 321, electrical pure iron coil rack 322, resistance to
High temperature enameled wire magnetic induction coil 323, magnetic conduction outer barrel 324 is not made, right during logging instrument section plane test for detecting
The change voltage signal that oil casing collar sensing produces, and the signal acquisition circuit 331 is output to, complete oil casing collar number
According to test.
As shown in figure 4, in tool body 3, the electronic circuit circuit 33 includes signal acquisition circuit 331, permanent work(
Rate circuit 332, field circuit 333, data transmission circuit 334, governor circuit 335.The signal acquisition circuit 331 includes corresponding to
The environment temperature sensor 12 of thermal flow rate sensor 1 and the TCH test channel of flow speed temperature sensor 13, corresponding outer-flowing type are aqueous
The TCH test channel of 23 induced electromotive force of measuring electrode of rate sensor 2, the test for corresponding to pressure sensor in pressure measurement circuit 31 are led to
The TCH test channel in road and corresponding magnetic locator 32.
In order to improve the precision of signal acquisition, the logging instrument is equipped with signal acquisition circuit, the signal acquisition circuit bag
Amplifying circuit and 24 analog-digital converters are included, for gathering the signal of each sensor.
Specifically, wherein the signal acquisition circuit 331 is equipped with programmable amplifier and 24 analog-digital converters, Ke Yiji
The earth improves the precision of signal acquisition.The invariable power circuit 332 is used to carry to the heat source generator 14 of thermal flow rate sensor 1
Power supply source.The field circuit 333 is used to provide exciting current for the excitation electrode 22 of outer-flowing type moisture sensor 2.It is described
Data transmission circuit 334 is communicated with the coding mode of Manchester code and ground instrument.The overall control of the governor circuit 335
Invariable power circuit 332 invariable power power supply, the exciting current of field circuit 333, signal acquisition circuit 331 to flow, moisture content,
Temperature, pressure, the data acquisition of magnetic orientation, the data encoding of data transmission circuit 334 and transmission.
Further, extraneous cable is connected with non-collective flow liquid producing profile log instrument for convenience, will can be arranged on described
The cable connector on logging instrument top is arranged to circumference symmetrical structure.The similar structure with circular hole earphone of this structure, specifically,
In tool body 3, the cable connector 34 is connected for holocentric logging cable with logging instrument, its center is rotatable
Holocentric contact pin, is sealed by sealing-plug, and surrounding connecting portion is sealed by sealant rubber ring.
In a kind of embodiment, the non-collective flow liquid producing profile log instrument can be designed specifically to diameter
38mm, total length 1820mm.
The present invention provides a kind of non-collective flow liquid producing profile log instrument, real as a result of non-collective flow technical solution, the present invention
Applying the logging instrument described in example can once go into the well the test assignment of the continuous production profile that can just complete full well oil layer section, so that
Working strength can be reduced and improve operating efficiency.The thermal flowmeter that the present invention uses has reliability height, without movable part
Part, can carry out the advantages that low discharge measurement, can overcome turbine flowmeter there are the shortcomings that, can complete to flow without current collecting umbrella
Measure examination；The present invention uses outer-flowing type moisture sensor, when fluid can complete moisture content when sensor external flows through
Test, the opposite logging instrument scheme with needing current collecting umbrella in the prior art, without current collecting umbrella, can realize to oil well interval into
Row serial section is tested, the test assignment for the continuous production profile that can just complete full well oil layer section that can once go into the well.
On the basis of above-mentioned embodiment, in present embodiment, in order to which logging instrument is fixed and oily vertically
In well, centralizer 4 can be set in the tool body upper and lower ends.Centralizer 4 is to belong to cementing tool, it is simple to manufacture,
Structure is beautiful, and firm and durable, uprighting force is big, overcomes the deficiency that desoldering easily occurs for former welded type centralizer, is that one kind can guarantee that
The centralizer of well drilling and cementing quality.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there are other identical element in the process, method, article or apparatus that includes the element.
A kind of non-collective flow liquid producing profile log instrument provided by the present invention is described in detail above, it is used herein
Specific case is set forth the principle of the present invention and embodiment, to understand the explanation of above example is only intended to helping
The method and its core concept of the present invention；Meanwhile for those of ordinary skill in the art, according to the thought of the present invention, having
There will be changes in body embodiment and application range, in conclusion this specification content should not be construed as to the present invention
Limitation.
Claims (10)
- A kind of 1. non-collective flow liquid producing profile log instrument, it is characterised in that including：Tool body, the tool body connection There are thermal flowmeter, outer-flowing type moisture sensor；The outer-flowing type moisture sensor is cylindrical, is had on cylindrical surface A pair of exciting, middle part are equipped with a pair of of measuring electrode.
- 2. non-collective flow liquid producing profile log instrument according to claim 1, it is characterised in that the excitation electrode, the survey Amount electrode is titanium alloy electrode.
- 3. non-collective flow liquid producing profile log instrument according to claim 1, it is characterised in that the thermal flowmeter includes： Flow meter body and environment temperature sensor, flow speed temperature sensor, heat source on the flow meter body occur Device.
- 4. non-collective flow liquid producing profile log instrument according to claim 3, it is characterised in that the environment temperature sensor, The flow speed temperature sensor is Pt1000 platinum sensors.
- 5. non-collective flow liquid producing profile log instrument according to claim 3, it is characterised in that the environment temperature sensor, The flow speed temperature sensor is by the metal tube sealing welding that one end is closed and the tool body.
- 6. non-collective flow liquid producing profile log instrument according to claim 1, it is characterised in that further include, arranged on the well logging The centralizer of instrument main body upper and lower ends.
- 7. non-collective flow liquid producing profile log instrument according to claim 1, it is characterised in that arranged on the logging instrument top Cable connector is circumference symmetrical structure.
- 8. non-collective flow liquid producing profile log instrument according to claim 1, it is characterised in that further include, arranged on the well logging The pressure sensor of instrument main body.
- 9. non-collective flow liquid producing profile log instrument according to claim 8, it is characterised in that the pressure sensor is blue precious Stone pressure sensor.
- 10. according to claim 1 to 9 any one of them non-collective flow liquid producing profile log instrument, it is characterised in that the logging instrument Equipped with signal acquisition circuit, the signal acquisition circuit includes amplifying circuit and 24 analog-digital converters, for gathering each sensing The signal of device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711483028.5A CN108019200B (en) | 2017-12-29 | 2017-12-29 | Non-flow-collecting liquid-producing profile logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711483028.5A CN108019200B (en) | 2017-12-29 | 2017-12-29 | Non-flow-collecting liquid-producing profile logging instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108019200A true CN108019200A (en) | 2018-05-11 |
| CN108019200B CN108019200B (en) | 2024-07-23 |
Family
ID=62070996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711483028.5A Active CN108019200B (en) | 2017-12-29 | 2017-12-29 | Non-flow-collecting liquid-producing profile logging instrument |
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| Country | Link |
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| CN (1) | CN108019200B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184666A (en) * | 2018-11-13 | 2019-01-11 | 长春市斯普瑞新技术有限责任公司 | A kind of production profile logging instrument of gas recovery well |
| CN110552683A (en) * | 2019-09-29 | 2019-12-10 | 北京北油蓝海科技有限公司 | Pressure-bearing fully-sealed bailing well bailing supervision and production meter |
| CN111398408A (en) * | 2020-04-23 | 2020-07-10 | 兰州孚瑞得科技有限公司 | Device and method for measuring phase fraction of two-phase flow by electromagnetic induction technology |
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| CN110552683A (en) * | 2019-09-29 | 2019-12-10 | 北京北油蓝海科技有限公司 | Pressure-bearing fully-sealed bailing well bailing supervision and production meter |
| CN110552683B (en) * | 2019-09-29 | 2024-08-09 | 北京北油蓝海科技有限公司 | Pressure-bearing fully-sealed bailing well bailing supervision and production meter |
| CN111398408A (en) * | 2020-04-23 | 2020-07-10 | 兰州孚瑞得科技有限公司 | Device and method for measuring phase fraction of two-phase flow by electromagnetic induction technology |
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| CN108019200B (en) | 2024-07-23 |
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