CN102996119A - Downhole detection unit - Google Patents
Downhole detection unit Download PDFInfo
- Publication number
- CN102996119A CN102996119A CN 201210483616 CN201210483616A CN102996119A CN 102996119 A CN102996119 A CN 102996119A CN 201210483616 CN201210483616 CN 201210483616 CN 201210483616 A CN201210483616 A CN 201210483616A CN 102996119 A CN102996119 A CN 102996119A
- Authority
- CN
- China
- Prior art keywords
- sensor
- pump
- discharge pressure
- signal processing
- interface
- 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.)
- Pending
Links
Images
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention provides a downhole detection unit, comprising a protective casing and a transition joint arranged on one end of the casing, wherein the transition joint is provided with a cable interface and a pump outlet pressure interface, and the pump outlet pressure interface is connected with an outlet pressure transmission pipeline; and the protective casing is internally provided with a pump inlet temperature sensor, a pump inlet pressure sensor, a pump outlet pressure sensor, a motor temperature sensor, a vibration sensor, a leakage current sensor, a signal processing circuit, a singlechip microcomputer and a power circuit. The downhole detection unit has the beneficial effects of monitoring various working states of downhole oil-submerged pumps in real time and preventing various problems, and has the advantages of simple structure, convenience for maintenance, diverse functions and the like.
Description
Technical field
The invention belongs to exploration engineering field, down-hole, especially relate to a kind of downhole detection unit.
Background technology
Oil-immersed pump often is subject to the impact of down-hole many factors in when work, spends lowly such as well liquid height, can cause centrifugal pump to find time or gas lock, and the well liquid temp is too high, can cause the motor damage; Also there is simultaneously the danger of resonance and cable leakage.
Summary of the invention
The problem to be solved in the present invention provides a kind of downhole detection unit, especially is fit to the working state monitoring of oil-immersed pump.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of downhole detection unit, it is characterized in that: comprise protecting sheathing, be located at the transit joint of described shell one end, described transit joint is provided with cable interface, pump discharge pressure interface, and described pump discharge pressure interface links to each other with the outlet pressure transfer line;
Described protecting sheathing inside is provided with pump intake temperature pick up, pump inlet pressure sensor, pump discharge pressure sensor, motor temperature sensor, vibrating sensor, leakage current sensor, signal processing circuit, single-chip microcomputer and power circuit; Described pump discharge pressure sensor, motor temperature sensor all link to each other with described pump discharge pressure interface, and described leakage current sensor links to each other with described cable interface;
Described pump intake temperature pick up, pump inlet pressure sensor, pump discharge pressure sensor, motor temperature sensor, vibrating sensor, leakage current sensor all with single-chip microcomputer link to each other, described single-chip microcomputer links to each other with signal processing circuit, described signal processing circuit connects described cable interface, and described single-chip microcomputer also links to each other with described power circuit.
Described signal processing circuit, power circuit and single-chip microcomputer all are located on the circuit board, and described circuit board and described protecting sheathing envelope are integrated, and carry out vacuum encapsulation.
Described protecting sheathing inside also is provided with single-phase reactor, and described single-phase reactor is connected between signal processing circuit and the described cable interface.
Advantage and good effect that the present invention has are: owing to adopt technique scheme, but each duty of this detecting unit Real-Time Monitoring down-hole oil-immersed pump is avoided the generation of all kinds of problems.Have the advantages such as simple in structure, easy to maintenance, diverse in function.
Description of drawings
Fig. 1 is structural representation of the present invention
Fig. 2 is module diagram of the present invention
Among the figure:
1, protecting sheathing 2, transit joint 3, cable interface
4, pump discharge pressure interface
The specific embodiment
As shown in Figure 1, the present invention includes protecting sheathing 1, be located at the transit joint 2 of shell 1 one ends, cable interface 3, pump discharge pressure interface 4 on the transit joint 2, pump discharge pressure interface 4 links to each other with the outlet pressure transfer line;
As shown in Figure 2, protecting sheathing 1 inside is provided with pump intake temperature pick up, pump inlet pressure sensor, pump discharge pressure sensor, motor temperature sensor, vibrating sensor, leakage current sensor, signal processing circuit, single-chip microcomputer and power circuit; Pump discharge pressure sensor, motor temperature sensor all link to each other with pump discharge pressure interface 4, and leakage current sensor links to each other with described cable interface 3;
Pump intake temperature pick up, pump inlet pressure sensor, pump discharge pressure sensor, motor temperature sensor, vibrating sensor, leakage current sensor all link to each other with single-chip microcomputer, single-chip microcomputer links to each other with signal processing circuit, signal processing circuit connects described cable interface 3, and single-chip microcomputer also links to each other with described power circuit.
Pump intake temperature sensor monitors pump intake well liquid temp, the protection motor is avoided damaging; Pump inlet pressure Sensor monitoring pump inlet pressure has best liquid level in order to ensure the down-hole, to improve efficiency of centrifugal pump, prevents that centrifugal pump from finding time or gas lock; The pump discharge pressure sensor prevents that by outlet pressure transfer line monitoring pump discharge pressure oil valves from turn-offing, and viscous crude stops up, and prediction electric pump fault improves equipment service life, reduces relevant remedial measure cost; Motor temperature Sensor monitoring motor temperature prevents that motor overheating from affecting its life-span, and the reaction time of electric motor protecting is set; Vibrating sensor can be monitored radial vibration and axial vibration, with harmful resonance range district indication, and the service life of extension device, repairing the oil time of this well formulated in prediction; But leakage current sensor monitoring cable insulation degree.
Wherein, signal processing circuit, power circuit and single-chip microcomputer all are located on the circuit board, and circuit board and protecting sheathing 2 envelopes are integrated, and carry out vacuum encapsulation; can effectively prevent a series of physical hazards such as circuit board breaks, broken string in high temperature, HI high impact environment, guarantee the circuit normal operation.
Protecting sheathing 2 inside also are provided with single-phase reactor, and single-phase reactor is connected between signal processing circuit and the described cable interface 3, plays the increase short-circuit impedance, the effect of limiting short-circuit current.
More than one embodiment of the present of invention are had been described in detail, but described content only is preferred embodiment of the present invention, can not be considered to be used to limiting practical range of the present invention.All equalizations of doing according to the present patent application scope change and improve etc., all should still belong within the patent covering scope of the present invention.
Claims (3)
1. downhole detection unit, it is characterized in that: comprise protecting sheathing, be located at the transit joint of described shell one end, described transit joint is provided with cable interface, pump discharge pressure interface, and described pump discharge pressure interface links to each other with the outlet pressure transfer line;
Described protecting sheathing inside is provided with pump intake temperature pick up, pump inlet pressure sensor, pump discharge pressure sensor, motor temperature sensor, vibrating sensor, leakage current sensor, signal processing circuit, single-chip microcomputer and power circuit; Described pump discharge pressure sensor, motor temperature sensor all link to each other with described pump discharge pressure interface, and described leakage current sensor links to each other with described cable interface;
Described pump intake temperature pick up, pump inlet pressure sensor, pump discharge pressure sensor, motor temperature sensor, vibrating sensor, leakage current sensor all with single-chip microcomputer link to each other, described single-chip microcomputer links to each other with signal processing circuit, described signal processing circuit connects described cable interface, and described single-chip microcomputer also links to each other with described power circuit.
2. downhole detection according to claim 1 unit, it is characterized in that: described signal processing circuit, power circuit and single-chip microcomputer all are located on the circuit board, and described circuit board and described protecting sheathing envelope are integrated, and carry out vacuum encapsulation.
3. downhole detection according to claim 1 unit, it is characterized in that: described protecting sheathing inside also is provided with single-phase reactor, and described single-phase reactor is connected between signal processing circuit and the described cable interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210483616 CN102996119A (en) | 2012-11-23 | 2012-11-23 | Downhole detection unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210483616 CN102996119A (en) | 2012-11-23 | 2012-11-23 | Downhole detection unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102996119A true CN102996119A (en) | 2013-03-27 |
Family
ID=47925164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210483616 Pending CN102996119A (en) | 2012-11-23 | 2012-11-23 | Downhole detection unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102996119A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670378A (en) * | 2013-12-19 | 2014-03-26 | 天津正本自控系统有限公司 | Artificial lift underground real-time monitoring device |
| CN104555874A (en) * | 2014-12-26 | 2015-04-29 | 戴江河 | Submersible pump type refueling machine feeding tube seepage device |
| CN104696215A (en) * | 2013-12-06 | 2015-06-10 | 中国石油天然气股份有限公司 | Intelligent control device for down-hole direct-driven screw pump and operation method thereof |
| WO2015106590A1 (en) * | 2014-01-17 | 2015-07-23 | 浙江中科德润科技有限公司 | Apparatus for measuring temperature and pressure in oil-submersible well |
| 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 |
| CN110761773A (en) * | 2019-09-23 | 2020-02-07 | 冯祎诺 | Device and method for monitoring running state of oil pumping unit |
| US10711802B2 (en) | 2016-05-16 | 2020-07-14 | Weir Minerals Australia Ltd. | Pump monitoring |
-
2012
- 2012-11-23 CN CN 201210483616 patent/CN102996119A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696215A (en) * | 2013-12-06 | 2015-06-10 | 中国石油天然气股份有限公司 | Intelligent control device for down-hole direct-driven screw pump and operation method thereof |
| CN103670378A (en) * | 2013-12-19 | 2014-03-26 | 天津正本自控系统有限公司 | Artificial lift underground real-time monitoring device |
| WO2015106590A1 (en) * | 2014-01-17 | 2015-07-23 | 浙江中科德润科技有限公司 | Apparatus for measuring temperature and pressure in oil-submersible well |
| CN104555874A (en) * | 2014-12-26 | 2015-04-29 | 戴江河 | Submersible pump type refueling machine feeding tube seepage device |
| CN104555874B (en) * | 2014-12-26 | 2017-04-26 | 戴江河 | Submersible pump type refueling machine feeding tube seepage device |
| 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 |
| US10711802B2 (en) | 2016-05-16 | 2020-07-14 | Weir Minerals Australia Ltd. | Pump monitoring |
| CN110761773A (en) * | 2019-09-23 | 2020-02-07 | 冯祎诺 | Device and method for monitoring running state of oil pumping unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102996119A (en) | Downhole detection unit | |
| RU2606034C1 (en) | Telemetering equipment for systems with multiphase electric motor | |
| CN202564023U (en) | On-line oil filtering system of oil-immersed transformer | |
| US20150037171A1 (en) | Electric submersible pump having a plurality of motors operatively coupled thereto and methods of using | |
| CN106848764A (en) | Female end cable connector, male end cable connector and cable connector assembly | |
| CN101420113A (en) | Three phase electric power protector having counting and timing function | |
| CN203906322U (en) | Deep-well pump control device beneficial for preventing no-load pumping | |
| CN105627024A (en) | Pipe repair device assembly | |
| CN102706513A (en) | Anticipatory failure indicator and fluid cooling arrangement | |
| CN102508188A (en) | On-line detection device for lightning arrester discharge counter | |
| CN103472352B (en) | A kind of ground wire testing method | |
| CN103486056A (en) | Submersible sewage pump monitoring device | |
| CN211038618U (en) | Underground parameter comprehensive testing device for high-temperature permanent submersible electric pump | |
| CN215757624U (en) | Cathode protection grounding high-pass instrument | |
| CN201378191Y (en) | Electrified-replaceable on-line monitor of lightning arrester | |
| CN207354268U (en) | A kind of Real Time Hydrologic Information harvester based on power carrier communication | |
| CN105114335A (en) | Anti-reverse device of electric submersible pump | |
| RU189924U1 (en) | Downhole Measuring Device | |
| CN204461703U (en) | A kind of device detecting low low temp. electric fly-ash separator heat-exchanger rig refrigerant leakage | |
| CN203054027U (en) | Underground choking flow unit of electrical submersible pump real-time monitoring system | |
| CN111342614A (en) | Explosion-proof water cooling device of mining high-power permanent magnet direct drive motor | |
| CN202749681U (en) | Spark gap-type equipotential connector | |
| CN202330609U (en) | Electrical porcelain monitor | |
| CN215817526U (en) | Lightning protection device is used in trinity control of offshore oil platform | |
| CN201821318U (en) | Flameproof and intrinsically safe high-voltage variable-frequency speed regulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |