CN208633818U - A kind of underground thermometric pressure measuring unit - Google Patents
A kind of underground thermometric pressure measuring unit Download PDFInfo
- Publication number
- CN208633818U CN208633818U CN201821198222.9U CN201821198222U CN208633818U CN 208633818 U CN208633818 U CN 208633818U CN 201821198222 U CN201821198222 U CN 201821198222U CN 208633818 U CN208633818 U CN 208633818U
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- China
- Prior art keywords
- sensor
- cavity
- capsule
- measuring unit
- liquid
- Prior art date
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- 239000007788 liquid Substances 0.000 claims abstract description 72
- 239000002775 capsule Substances 0.000 claims abstract description 35
- 230000001012 protector Effects 0.000 claims abstract description 22
- 210000002445 nipple Anatomy 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 18
- 230000037361 pathway Effects 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- 125000001153 fluoro group Chemical group F* 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model relates to oil field well parameter measuring apparatus technical fields, and in particular to a kind of underground thermometric pressure measuring unit.Comprising: the protector outer casing of both ends connection and inner hollow, the protector outer casing both ends are separately connected the screw pump and motor of underground；One end aperture is simultaneously installed on the capsule inside protector outer casing, is connected to inside the capsule and motor；It is fixed on the sensor module of motor lower portion.Gap between the protector outer casing and capsule forms the first cavity for accommodating well liquid, and the communicating passage of the capsule to sensor module top forms the second cavity, and sensor module is connected to the second cavity, is marked with insulating liquid in second cavity.The capsule is non-aging and loosens, so that the leakage of well liquid and insulating liquid is prevented, inductor failure caused by effectivelying prevent each inductor blocking caused by leakage and corroding；Capsule is able to maintain more long elasticity and susceptibility compared to rubber pad, and measurement accuracy caused by being used for a long time effectively is avoided to reduce.
Description
Technical field
The utility model relates to oil field well parameter measuring apparatus technical fields, and in particular to a kind of underground thermometric survey press fitting
It sets.
Background technique
Under screw bolt well in oil extraction system, need to carry out real-time monitoring to the pressure and temperature of underground to guarantee oil well
Safety in production.The working principle of existing thermometric pressure measuring unit are as follows: using planar rubber pad isolation well liquid and sensor, and
Sensor directly contacts rubber pad, and the pressure change of well liquid can make rubber pad deformation to squeeze pressure sensors measure pressure.
But there are following technological deficiencies for above-mentioned thermometric pressure measuring unit: rubber pad generates deformation with well liquid pressure change, is used for a long time
Afterwards, easily rubber pad is caused to rupture, and planar rubber pad, in long-term deformation process, the connection with side wall is easy to loosen,
The above reason is all easy to that well liquid is caused to leak, and causes the induction end of sensor to block and corrode after well liquid leakage, causes to incude
Device failure.
Utility model content
Technical problem to be solved in the utility model are as follows: a kind of underground thermometric pressure measuring unit is provided, can be solved existing
Loosened in technology using rubber pad rupture or link after being used for a long time caused by flat rubber pad, so as to cause well liquid leakage ask
Topic, thus inductor failure caused by preventing well liquid leakage from inductor being caused to block and corrode.
Used technical solution is to solve above-mentioned technical problem:
A kind of underground thermometric pressure measuring unit, comprising:
The protector outer casing of both ends connection and inner hollow, the protector outer casing both ends are separately connected the screw pump of underground
And motor；
One end aperture is simultaneously installed on the capsule inside protector outer casing, is connected to inside the capsule and motor；
It is fixed on the sensor module of motor lower portion,
Gap between the protector outer casing and capsule forms the first cavity, the capsule to sensor module top
Communicating passage formed the second cavity, and sensor module be connected to the second cavity, be marked with insulating liquid in second cavity,
Well liquid enters the first cavity, and the well liquid in the first cavity makes the insulating liquid pressure in the second cavity by the elastic reaction of capsule
Power is equal to the well liquid pressure in the first cavity, and sensor module measures insulating liquid pressure to characterize well liquid pressure, meanwhile, it is described
Sensor module can measure the temperature parameter of its external well liquid.
In a preferred embodiment, the material of the capsule is fluorubber.
In a preferred embodiment, the protector outer casing is connect by the first connector with screw pump, protector
Shell is connected to motor by the second connector, and first connector has the first through hole axially through its inside, the
One connector has the inlet opening for being connected to external well liquid in the radial direction, and the inlet opening is connected to first through hole, and the second connector has
Second through-hole internal through it, second through-hole are connected to inside motor, and the opening of the capsule is connected on the second through-hole.
In a preferred embodiment, the insulating liquid is transformer oil.
In a preferred embodiment, the sensor module is connected to motor by adapter flange, the switching
Flange has third through-hole for being connected to motor inside and sensor module.
In a preferred embodiment, there is liquid injection hole and leakage opening, the liquid injection hole is used on the adapter flange
In injection insulating liquid, the leakage opening is for releasing insulating liquid.
In a preferred embodiment, the sensor module includes sensor outer housing, the first seal nipple, second
Seal nipple, pressure sensor and temperature sensor, the first seal nipple connection adapter flange and sensor outer housing, are passing
Sensor shell lower end is connected with the second seal nipple, and pressure sensor, the pressure sensing are fixed in the first seal nipple
Device is connected to the second cavity, and fixing seat is fixed in sensor outer housing, is equipped with circuit board and temperature on the fixing seat
Sensor, and the induction end of the temperature sensor abuts fixing seat, the pressure sensor connects circuit with temperature sensor
Plate, the sensor outer housing and its external well liquid carry out hot transmitting, and by temperature conduction to fixing seat, to make fixing seat
Temperature is equal to well liquid temperature.
In a preferred embodiment, first seal nipple is equipped with the first sealing in the axial direction
Circle, second seal nipple are equipped with the second sealing ring, first sealing ring and the second sealing ring in the axial direction
It resists on the inside of sensor outer housing.
In a preferred embodiment, first seal nipple has feed pathway, and the feed pathway is used for
It is connected to the induction end of the second cavity and pressure sensor.
In a preferred embodiment, there is the cable passage inside it in first seal nipple,
It is fixed with connector close to one end of the second cavity in the cable passage, is connected with UVW cable at connector both ends, it is described
UVW cable passes through cable passage connection circuit board to realize the transmission of signal and electric power, the circuit board and pressure sensor, temperature
Spend sensor electrical connection.
The beneficial effects of the utility model are: by being packed into capsule in protector outer casing, between protector outer casing and capsule
Gap formed the first cavity, the capsule to sensor module top communicating passage formation the second cavity, well liquid into
Enter in the first cavity, and inject insulating liquid in the second cavity, uses flat rubber pad in the prior art to change completely
Directly measure the structure of well liquid parameter, the balanced action using capsule to well liquid and insulating liquid, make the pressure of insulating liquid with
Well liquid is identical, measures the parameter of insulating liquid for characterizing the pressure of well liquid, due to capsule by sensor die block indirection
Area be much larger than rubber pad, therefore, relative deformation amount is smaller, and in long-term use, capsule is non-aging and loosens, thus anti-
The only leakage of well liquid and insulating liquid, inductor failure caused by effectivelying prevent each inductor blocking caused by leakage and corroding.
Detailed description of the invention
Fig. 1 is the explosive view of thermometric pressure measuring unit described in the utility model；
Fig. 2 is the sectional view of thermometric pressure measuring unit described in the utility model；
Fig. 3 is partial enlarged view of the thermometric pressure measuring unit described in the utility model at the second seal nipple.
Each appended drawing reference in figure are as follows: 1: protector outer casing, 11: the first connectors, 111: first through hole, 112: inlet opening, 12:
Second connector, 121: the second through-holes, 2: capsule, 3: motor, 41: adapter flange, 42: connector, 431: the first seal nipples,
4311: feed pathway, 4312: cable passage, 432: the first sealing rings, 44: pressure sensor, 45: circuit board, 46: sensor
Shell, 471: the second seal nipples, 472: the second sealing rings, 48: temperature sensor, 5: the first cavitys, 6: the second cavitys, 7: absolutely
Edge liquid.
Specific embodiment
Below with reference to each attached drawing, the utility model is described in detail.
Thermometric pressure measuring unit in underground described in the utility model includes protector outer casing 1, is installed on guarantor combined with Figure 1 and Figure 2,
The capsule 2 protected inside device shell 1 and the sensor module being connected to capsule 2.Wherein, protector outer casing 1 passes through the first connector
11 connect with subsurface progressive cavity, and are connected with the second connector on the protector outer casing 1 of the other end relative to the first connector 11
12.First connector 11 has through its internal first through hole 111, and first through hole 111 is along the axis of the first connector 11
Direction, meanwhile, along the first connector 11 radially there is inlet opening 112, and first through hole 111 is connected to inlet opening 112, and
There is capsule 2 on the second through-hole 121 of the second connector 12, and the second through-hole 121 is connected to 3 inside perforative space of motor.It is preferred that
, 2 material of capsule is fluorubber, and above-mentioned material has excellent oil resistivity and corrosion resistance, can avoid being used for a long time by oil
Corrosion, while also there is good air-tightness and excellent adhesive property, it is ensured that the connection of capsule 2 and the second through-hole 121
The airtightness at place is stable and is not easy to leak.3 lower part of motor connects sensor module, the sensor module by adapter flange 41
Including the first seal nipple 431, sensor outer housing 46, the second seal nipple 471, pressure sensor 44,48 and of temperature sensor
Circuit board 45.It is fixed with fixing seat in the sensor outer housing 46, circuit board 45 is fixed on the fixing seat and temperature passes
Sensor 48.First seal nipple 431 is separately connected adapter flange 41 and sensor outer housing 46 by its external screw thread, and with sensing
It is multi-stage sealed to realize that it is cased with the first sealing ring 432 on the threaded one end that device shell 46 connects, well liquid is prevented to enter sensor die
Block, and the first sealing ring 432 is the three-level sealing structure for including the first rubber ring, the second rubber ring and third rubber ring.It is passing
46 lower thread of sensor shell is connected with the second seal nipple 471, and equally in the second seal nipple 471 and sensor outer housing 46
Between the second sealing ring 472 is installed, second sealing ring 472 be include the first rubber ring, the second rubber ring and third rubber
The three-level sealing structure of circle.More than, cooperate the first sealing ring 432 and the second seal nipple using the first seal nipple 431
471 the second sealing rings 472 of cooperation are realized multi-stage sealed, and the leakage prevention capability of system is greatly improved.For realize thermometric pressure measuring function,
Power supply and signal transmission, need to offer feed pathway 4311 and cable passage 4312 on the first seal nipple 431, wherein
Feed pathway 4311 is connected to the inductive head of pressure sensor 44, and circuit board 45 is installed in sensor outer housing 46, temperature sensor
48 are fixed on the bracket of circuit board 45, and the inductive head of temperature sensor 48 abuts fixing seat.Pacify on cable passage 4312
Equipped with connector 42,42 both ends of connector are respectively connected with UVW cable (not shown), and the UVW cable passes through cable
Channel 4312 connects circuit board 45, and the power supply of UVW cable connection and signal receiver (not shown) of the other end.
In conjunction with Fig. 2 and Fig. 3 thermometric pressure measuring unit working principle described in the utility model are as follows: the first through hole 111 is protected
The gap protected between 1 inside of device shell and capsule 2 constitutes the first cavity 5；Inside the capsule 2, in the second through-hole 121, motor 3
Portion and 41 interior bone of adapter flange collectively form the second cavity 6.Due to screw rod Pump Suction Nozzle connection first through hole 111, and into
Fluid apertures 112 is connected to external well liquid, and therefore, well liquid enters the first cavity 5 by first through hole 111 and inlet opening 112；Meanwhile
Insulating liquid 7 is filled by liquid injection hole in second cavity 6, it is preferred that use transformer oil as insulating liquid 7, insulating liquid 7 can
Pass through the inductive head of 4311 contact pressure sensor 44 of feed pathway.When the well liquid in the first cavity 5 is made by the elasticity of capsule 2
After the pressure balance with insulating liquid 7, well liquid pressure is equal to 7 pressure of insulating liquid, at this point, pressure sensor 44 can pass through survey
The pressure of insulating liquid 7 is measured to characterize oil liquid pressure.Due to being full of well liquid in the annular clearance outside device, and outside sensor
Shell 46 is thermally conductive, and therefore, well liquid temperature is reached in the fixing seat of circuit board 45 by sensor outer housing 46, due to temperature sensor 48
It is fixed in the fixing seat of circuit board 45, therefore, temperature sensor 48 can be by the fixing seat temperature of measuring circuit plate 45 come table
Levy well liquid temperature.Parameter signal is transferred to circuit board 45 by pressure sensor 44 and temperature sensor 48, and circuit board 45 passes through UVW
Cable transmits a signal to ground and shows equipment, to realize the pressure and temperature real-time measurement of well liquid.
The above is only the preferred embodiment of the present invention, not thereby limits the patent protection of the utility model
Range, it is all with equivalent structure transformation made by the utility model specification and accompanying drawing content, directly or indirectly it is used in it
His relevant technical field similarly includes within the protection scope of the present utility model.
Claims (10)
1. a kind of underground thermometric pressure measuring unit characterized by comprising
The protector outer casing of both ends connection and inner hollow, the protector outer casing both ends are separately connected the screw pump and electricity of underground
Machine；
One end aperture is simultaneously installed on the capsule inside protector outer casing, is connected to inside the capsule and motor；
It is fixed on the sensor module of motor lower portion,
Gap between the protector outer casing and capsule forms the first cavity, company of the capsule to sensor module top
Circulation passage forms the second cavity, and sensor module is connected to the second cavity, is marked with insulating liquid, well liquid in second cavity
Into the first cavity, the well liquid in the first cavity makes the insulating liquid pressure etc. in the second cavity by the elastic reaction of capsule
Well liquid pressure in the first cavity, sensor module measure insulating liquid pressure to characterize well liquid pressure, meanwhile, the sensing
Device module can measure the temperature parameter of its external well liquid.
2. a kind of underground thermometric pressure measuring unit as described in claim 1, which is characterized in that the material of the capsule is fluorine rubber
Glue.
3. a kind of underground thermometric pressure measuring unit as described in claim 1, which is characterized in that the protector outer casing passes through first
Connector is connect with screw pump, and protector outer casing is connected to motor by the second connector, and first connector have passed through along axial direction
Its internal first through hole is worn, there is the inlet opening for being connected to external well liquid in the radial direction in the first connector, the inlet opening connects
Logical first through hole, the second connector have inside its second internal through-hole, the second through-hole connection motor, the capsule
Opening be connected on the second through-hole.
4. a kind of underground thermometric pressure measuring unit as described in claim 1, which is characterized in that the insulating liquid is transformer
Oil.
5. a kind of underground thermometric pressure measuring unit as described in claim 1, which is characterized in that the sensor module passes through switching
Flange is connected to motor, and the adapter flange has third through-hole for being connected to motor inside and sensor module.
6. a kind of underground thermometric pressure measuring unit as claimed in claim 5, which is characterized in that have fluid injection on the adapter flange
Hole and leakage opening, the liquid injection hole is for injecting insulating liquid, and the leakage opening is for releasing insulating liquid.
7. a kind of underground thermometric pressure measuring unit as claimed in claim 5, which is characterized in that the sensor module includes sensing
Device shell, the first seal nipple, the second seal nipple, pressure sensor and temperature sensor, the first seal nipple connection
Adapter flange and sensor outer housing are connected with the second seal nipple in sensor outer housing lower end, fixed in the first seal nipple
There is pressure sensor, the pressure sensor is connected to the second cavity, fixing seat is fixed in sensor outer housing, described solid
Circuit board and temperature sensor are installed, and the induction end of the temperature sensor abuts fixing seat in reservation, the pressure passes
Sensor connects circuit board with temperature sensor, and the sensor outer housing and its external well liquid carry out hot transmitting, and temperature is passed
It is directed in fixing seat, so that fixing seat temperature be made to be equal to well liquid temperature.
8. a kind of underground thermometric pressure measuring unit as claimed in claim 7, which is characterized in that first seal nipple is along axis
First sealing ring is installed, second seal nipple is equipped with the second sealing ring in the axial direction, described on line direction
First sealing ring and the second sealing ring resist on the inside of sensor outer housing.
9. a kind of underground thermometric pressure measuring unit as claimed in claim 7, which is characterized in that first seal nipple have into
Liquid channel, the feed pathway are used to be connected to the induction end of the second cavity and pressure sensor.
10. a kind of underground thermometric pressure measuring unit as claimed in claim 7, which is characterized in that in first seal nipple
With through its internal cable passage, it is fixed with connector close to one end of the second cavity in the cable passage, is being connected
Device both ends are connected with UVW cable, and the UVW cable realizes the transmission of signal and electric power across cable passage connection circuit board,
The circuit board is electrically connected with pressure sensor, temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821198222.9U CN208633818U (en) | 2018-07-26 | 2018-07-26 | A kind of underground thermometric pressure measuring unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821198222.9U CN208633818U (en) | 2018-07-26 | 2018-07-26 | A kind of underground thermometric pressure measuring unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208633818U true CN208633818U (en) | 2019-03-22 |
Family
ID=65738729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821198222.9U Withdrawn - After Issue CN208633818U (en) | 2018-07-26 | 2018-07-26 | A kind of underground thermometric pressure measuring unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208633818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756861A (en) * | 2018-07-26 | 2018-11-06 | 杭州乾景科技有限公司 | A kind of underground thermometric pressure measuring unit |
| CN110017132A (en) * | 2019-05-24 | 2019-07-16 | 中国地质科学院地质力学研究所 | A kind of hydraulic fracturing packer and fracturing section pressure monitoring device |
-
2018
- 2018-07-26 CN CN201821198222.9U patent/CN208633818U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756861A (en) * | 2018-07-26 | 2018-11-06 | 杭州乾景科技有限公司 | A kind of underground thermometric pressure measuring unit |
| CN108756861B (en) * | 2018-07-26 | 2024-03-12 | 杭州乾景科技有限公司 | Underground temperature and pressure measuring device |
| CN110017132A (en) * | 2019-05-24 | 2019-07-16 | 中国地质科学院地质力学研究所 | A kind of hydraulic fracturing packer and fracturing section pressure monitoring device |
| CN110017132B (en) * | 2019-05-24 | 2023-12-22 | 中国地质科学院地质力学研究所 | Hydraulic fracturing packer and fracturing section pressure monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190322 Effective date of abandoning: 20240312 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190322 Effective date of abandoning: 20240312 |