CN204532791U - A kind of electric submersible pump sensing system - Google Patents
A kind of electric submersible pump sensing system Download PDFInfo
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- CN204532791U CN204532791U CN201520202961.0U CN201520202961U CN204532791U CN 204532791 U CN204532791 U CN 204532791U CN 201520202961 U CN201520202961 U CN 201520202961U CN 204532791 U CN204532791 U CN 204532791U
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- China
- Prior art keywords
- submersible pump
- electric submersible
- ground
- display device
- downhole
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Abstract
The utility model relates to a kind of electric submersible pump sensing system, this system comprises ground display device, ground high-voltage isolator and downhole sensor, ground display device is electrically connected with ground high-voltage isolator, ground high-voltage isolator is electrically connected with the three-phase power cable of electric submersible pump, described downhole sensor is arranged on the bottom of the downhole electrical motor of electric submersible pump, for monitoring electric submersible pump Operational Limits, the electric submersible pump Operational Limits of monitoring is transferred to ground display device by described three-phase power cable and shows by described downhole sensor; The utility model can simplify signal between electric submersible pump sensor and ground installation and electric power transfer, and transmission is stable, and cost is lower.
Description
Technical field
The utility model relates to a kind of electric submersible pump sensing system, belongs to oilfield electric submersible pump detection technique field.
Background technique
For a kind of artificial lift formula oil production equipment of extensive use, simple with its surface technology structure, efficiency is high, lift discharge capacity is large, be convenient to the features such as management is subject to the great attention of each elephant.Due to its work under bad environment, for ensureing petroleum efficient, stably exploiting, need to implement comprehensive detection to a large amount of producing well.Electric submersible pump sensing system can realize multiple parameter real time on-line monitorings such as electric immersible pump well downforce, temperature.But the signal between existing electric submersible pump sensing system and ground installation and electric power transfer complexity, and stable not.
Model utility content
The purpose of this utility model is to provide a kind of electric submersible pump sensing system, can simplify the signal between electric submersible pump sensor and ground installation and electric power transfer, and transmission is stable, and cost is lower.The technological scheme adopted is as follows:
A kind of electric submersible pump sensing system, comprise ground display device, ground high-voltage isolator and downhole sensor, ground display device is electrically connected with ground high-voltage isolator, ground high-voltage isolator is electrically connected with the three-phase power cable of electric submersible pump, described downhole sensor is arranged on the bottom of the downhole electrical motor of electric submersible pump, for monitoring electric submersible pump Operational Limits, the electric submersible pump Operational Limits of monitoring is transferred to ground display device by described three-phase power cable and shows by described downhole sensor.
Wherein, ground high-voltage isolator is drawn three wires and is connected electrically on the three-phase power cable terminal of the ground controller output terminal of electric submersible pump, and the electric submersible pump Operational Limits of monitoring is transferred to ground display device by described three-phase power cable and ground high-voltage isolator and shows by described downhole sensor.
Wherein, the head of described sensor has flange plate and power supply terminal, and the flange plate of sensor head is connected with the bottom mechanical of downhole electrical motor, and the head power supply terminal of described sensor is connected electrically on the wire of bottom core point extraction of downhole electrical motor.
Wherein, described Operational Limits comprises: electric submersible pump inlet pressure, outlet pressure, inlet temperature, motor temperature, electric submersible pump operational shock and leakage current.
Wherein, electric submersible pump comprises ground controller, downhole electrical motor and three-phase power cable, and ground control cabinet is by three-phase power cable electrical connection downhole electrical motor.
Wherein, ground display device and downhole sensor ground connection simultaneously, between ground, place display device and downhole sensor, by described three-phase power cable, ground high-voltage isolator and grounding end composition DC loop, the electric submersible pump Operational Limits of monitoring is transferred to ground display device by this DC loop and shows by described downhole sensor.
Accompanying drawing explanation
Fig. 1 is electric submersible pump sensing system and electric submersible pump schematic diagram.
Fig. 2 is sensing system and electric submersible pump connection diagram.
Fig. 3 is downhole sensor logic diagram.
Fig. 4 is ground high-voltage isolator logic diagram.
Fig. 5 is ground display device logic diagram.
Embodiment
As shown in Figure 1, 2, being electric submersible pump sensing system A inside solid box, is electric submersible pump B inside dotted line frame.Electric submersible pump sensing system A comprises: ground display device 1, ground high-voltage isolator 2 and downhole sensor 3.Electric submersible pump comprises ground controller 4, downhole electrical motor 5 and three-phase power cable, and ground control cabinet 4 is by three-phase power cable electrical connection downhole electrical motor 5.Downhole sensor 3 monitors electric submersible pump Operational Limits, and Operational Limits comprises: pump inlet pressure, pump discharge pressure, pump intake temperature, electric submersible pump motor temperature, electric submersible pump operational shock and leakage current.
The head of described sensor 3 has flange plate and power supply terminal, it is 114mm that flange plate is preferably diameter, the flange plate of sensor head is connected with the bottom mechanical of electric submersible pump downhole electrical motor 5, and the power supply terminal of described sensor 3 head is connected electrically on the wire of bottom core point extraction of electric submersible pump downhole electrical motor 5.
Ground display device 1 is electrically connected with ground high-voltage isolator 2, ground high-voltage isolator 2 is electrically connected with the three-phase power cable of electric submersible pump, described downhole sensor 3 is arranged on the bottom of the downhole electrical motor 5 of electric submersible pump, for monitoring electric submersible pump Operational Limits, the electric submersible pump Operational Limits of monitoring is transferred to ground display device 1 by described three-phase power cable and shows by described downhole sensor 3.
Ground high-voltage isolator 2 is drawn three wires and is connected electrically on the three-phase power cable terminal of ground controller 4 output terminal of electric submersible pump, and the electric submersible pump Operational Limits of monitoring is transferred to ground display device 1 by described three-phase power cable and ground high-voltage isolator 2 and shows by described downhole sensor 3.
As shown in Figure 2, downhole sensor 3 and ground display device 1 have a place altogether.After ground display device 1 powers on, can export the VDC of 115V, be then DC115V at A point (ground display device 1 with high-voltage isolator 2 tie point) voltage-to-ground.Draw three bar wires with three-phase power cable by ground high-voltage isolator 2 due to electric submersible pump sensing system to be connected, have 115V VDC over the ground at B point (motor core point) and C point (ground high-voltage isolator 2 draws the three-phase power cable terminal connection point of three wires and ground controller 4 output terminal) place.Electric submersible pump ground controller 4 exports as threephase AC, is therefore 0V at the voltage of A, B point place Ac.Because ground display device 1 and downhole sensor 3 be ground connection all simultaneously, between ground, place display device 1 and downhole sensor 3, by described three-phase power cable, ground high-voltage isolator 2 and grounding end composition DC loop.Sensor 3 can use 115V direct current maintenance work, and the electric submersible pump Operational Limits of monitoring is transferred to ground display device 1 by this DC loop and shows.
As shown in Figure 3, downhole sensor 3 comprises low-pass filter, voltage divider, data modulator, sensing module.Sensing module comprises the sensor of CPU, multiplexer and corresponding inlet pressure, inlet temperature, outlet pressure, motor temperature, vibration, leakage current.Wherein, the bottom core point of one end electrical connection motor 5 of low-pass filter, the other end electrical connection voltage divider, voltage divider is electrically connected with data modulator and sensing module respectively, and data modulator is electrically connected this sensing module.
As shown in Figure 4, ground high-voltage isolator 2 comprises capacitance module, overvoltage protective module, the first limiting fuse, three-phase reactor, the second limiting fuse.Wherein capacitance module first end is electrically connected this ground display device 1; capacitance module second end electrical connection overvoltage protective module; overvoltage protective module is electrically connected the first limiting fuse; first limiting fuse electrical connection three-phase reactor; three-phase reactor is electrically connected this second limiting fuse, and the second limiting fuse is connected electrically on the three-phase power cable of electric submersible pump controller 4 output terminal.
As shown in Figure 5, ground display device comprises power module, DC24V turns DC115V module, DC5V module, data acquisition module, data demodulator, data show and preserve module, RS232 communication module.Power module first end connects 110V-240V Ac, and the second end is electrically connected DC24V respectively and turns DC115V module and DC5V module.DC24V turns DC115V module electrical connection ground high-voltage isolator 2 and data acquisition module.DC5V module is electrically connected data acquisition module, data demodulator, data display respectively and preserves module, RS232 communication module.Data acquisition module electrical connection data demodulator, the display of data demodulator electrical connection data with preserve module, data and show and preserve module and be electrically connected RS232 communication module.
Claims (6)
1. an electric submersible pump sensing system, it is characterized in that: this system comprises ground display device (1), ground high-voltage isolator (2) and downhole sensor (3), ground display device (1) is electrically connected with ground high-voltage isolator (2), ground high-voltage isolator (2) is electrically connected with the three-phase power cable of electric submersible pump, described downhole sensor (3) is arranged on the bottom of the downhole electrical motor (5) of electric submersible pump, for monitoring electric submersible pump Operational Limits, the electric submersible pump Operational Limits of monitoring is transferred to ground display device (1) by described three-phase power cable and shows by described downhole sensor (3).
2. a kind of electric submersible pump sensing system according to claim 1, it is characterized in that: ground high-voltage isolator (2) is drawn three wires and is connected electrically on the three-phase power cable terminal of ground controller (4) output terminal of electric submersible pump, the electric submersible pump Operational Limits of monitoring is transferred to ground display device (1) by described three-phase power cable and ground high-voltage isolator (2) and shows by described downhole sensor (3).
3. a kind of electric submersible pump sensing system according to claim 2, it is characterized in that: the head of described sensor (3) has flange plate and power supply terminal, the flange plate of sensor head is connected with the bottom mechanical of downhole electrical motor (5), and the head power supply terminal of described sensor (3) is connected electrically on the wire of bottom core point extraction of downhole electrical motor (5).
4. a kind of electric submersible pump sensing system according to claim 1, is characterized in that: described Operational Limits comprises: electric submersible pump inlet pressure, outlet pressure, inlet temperature, motor temperature, electric submersible pump operational shock and leakage current.
5. a kind of electric submersible pump sensing system according to claim 1, it is characterized in that: electric submersible pump comprises ground controller (4), downhole electrical motor (5) and three-phase power cable, ground control cabinet (4) is by three-phase power cable electrical connection downhole electrical motor (5).
6. a kind of electric submersible pump sensing system according to claim 1, it is characterized in that: ground display device (1) and downhole sensor (3) ground connection simultaneously, between ground, place display device (1) and downhole sensor (3), by described three-phase power cable, ground high-voltage isolator (2) and grounding end composition DC loop, the electric submersible pump Operational Limits of monitoring is transferred to ground display device (1) by this DC loop and shows by described downhole sensor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520202961.0U CN204532791U (en) | 2015-04-07 | 2015-04-07 | A kind of electric submersible pump sensing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520202961.0U CN204532791U (en) | 2015-04-07 | 2015-04-07 | A kind of electric submersible pump sensing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204532791U true CN204532791U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520202961.0U Expired - Fee Related CN204532791U (en) | 2015-04-07 | 2015-04-07 | A kind of electric submersible pump sensing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204532791U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781527A (en) * | 2016-03-24 | 2016-07-20 | 中国海洋石油总公司 | Parameter diagnosis and analysis method for electric submersible pump well working condition instrument |
| CN113123761A (en) * | 2020-01-15 | 2021-07-16 | 中国石油天然气股份有限公司 | Method and device for controlling start and stop of electric submersible pump |
-
2015
- 2015-04-07 CN CN201520202961.0U patent/CN204532791U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781527A (en) * | 2016-03-24 | 2016-07-20 | 中国海洋石油总公司 | Parameter diagnosis and analysis method for electric submersible pump well working condition instrument |
| CN113123761A (en) * | 2020-01-15 | 2021-07-16 | 中国石油天然气股份有限公司 | Method and device for controlling start and stop of electric submersible pump |
| CN113123761B (en) * | 2020-01-15 | 2023-08-22 | 中国石油天然气股份有限公司 | Method and device for controlling start and stop of electric submersible pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20200407 |
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| CF01 | Termination of patent right due to non-payment of annual fee |