CN103727030A - Screw pump oil production real-time monitoring device - Google Patents
Screw pump oil production real-time monitoring device Download PDFInfo
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- CN103727030A CN103727030A CN201210405321.0A CN201210405321A CN103727030A CN 103727030 A CN103727030 A CN 103727030A CN 201210405321 A CN201210405321 A CN 201210405321A CN 103727030 A CN103727030 A CN 103727030A
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- screw pump
- oil production
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- time monitoring
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Abstract
The invention discloses a screw pump oil production real-time monitoring device which is formed by electrically connecting a screw-pump oil production pump 1, a sensor 2, a signal processing circuit 3, a parameter setting circuit 4, a singlechip 5, a control circuit 6, a display 7, an upper computer 8, a data storage 9 and a printing output circuit 10. The screw pump oil production real-time monitoring device overcomes the defects of common single diagnostic methods such as a current method, a pressure keep-down method and a torque method, comprehensively monitors and diagnoses important parameters of the working condition of a screw pump, such as an oil pressure, a casing pressure, a voltage, a current and a torque, provides an effective means for scientifically and evaluating performance of the screw pump in time, and has the advantages of rapidness and accuracy for testing, visuality for displaying a test result, low testing cost and the like.
Description
Technical field
The invention belongs to automation field, be specifically related to the screw pump oil production real time monitoring apparatus using in petroleum production industry.
Background technique
Since nineteen thirty invention screw pump, screw pump technical matters is updated and is perfect, and the particularly development of synthetic rubber technology and adhesive technology is widely used screw pump in petroleum production.Although history is not long, demonstrated its superiority.It has the advantages that size is little, lightweight, easy to maintenance, system effectiveness is high, it is low to consume energy and one-time investment is few, is especially adapted to high containing sand and thick oil well.And viscosity of crude increases after polymer injection, screw pump just more demonstrates its superiority.Due to the complexity of this body structure of screw pump and material and processing technology, and screw pump Applicative time is short, and monitoring method and the means of screw pump are not perfect.
Screw pump oil production is also the same with other oil production equipments, if miscarriage or quality of product have problem, also there will be some faults.Due to the particularity of screw pump oil production, the reflection of the feature of all kinds of faults and diagnostic monitoring method and processing method are different with other oil production methods.General diagnostic monitoring method has; Current method, the platen press of spraining, calibrated wrench method.Current method is exactly the operating current by testing of electric motors, according to the size diagnosis pump condition of operating current: the platen press of spraining by closing the production tree back-pressure gate pressure of spraining, observes the fuel-displaced pressure of well head and casing pressure diagnose the method for underwell pump condition exactly; Calibrated wrench method is the method for pump condition of diagnosing by test polished rod moment of torsion.Some fault of general screw bolt well is to be difficult to Accurate Diagnosis with a kind of method merely.
Summary of the invention
The object of the invention is to: design a kind of SCM Based screw pump oil production real time monitoring apparatus, it can test oil pressure, casing pressure, electric current, voltage, moment of torsion and the rotating speed of screw bolt well.By pressure transducer, measure tubing pressure and the casing pressure of production tree; By operating voltage and the electric current of electrical quantity sensor testing of electric motors; By moment of torsion and the rotating speed of special-purpose torque sensor test polished rod, then utilize the parameter of measuring to analyze judgement to the operating mode of screw bolt well.This system can real-time diagnosis the important parameters such as oil pressure, casing pressure, voltage, electric current and moment of torsion of monitoring screw pump.For person skilled, the runnability of oil production system is analyzed, processed.Thereby ensure the safe and highly efficient operation of screw-pump oil-extraction equipment.
Technological scheme of the present invention is: screw pump oil production real-time control apparatus is mutually electrically connected to and forms by screw rod oil extraction pump 1, sensor 2, signal processing circuit 3, parameter setting circuit 4, single-chip microcomputer 5, control circuit 6, display device 7, upper-position unit 8, data storage 9, print output circuit 10.
Said sensor 2 is assembly structure, cover pressure sensor 11, oil pressure sensor 12, voltage transducer 13, current sensor 14, torque sensor 15 etc., consists of.By casing pressure, oil pressure sensor 11,12, measure tubing pressure and the casing pressure of production tree; By operating voltage and the electric current of voltage, current sensor 13,14 testing of electric motors; By moment of torsion and the rotating speed of special-purpose torque sensor 15 test polished rods, then through signal conditioning circuit 3,4 input single-chip microcomputers 5, single-chip microcomputer 5 is processed the signal collecting through upper-position unit 8, judgement system operation situation, output control signal, by control circuit 6, control the working state of screw pump 1, collection signal is sent computer system to show in real time and storage through display device 7 and storage 9 simultaneously.
The invention has the beneficial effects as follows: overcome the single diagnostic methods such as general conventional current method, the platen press of spraining, calibrated wrench method, the important parameters such as oil pressure, casing pressure, voltage, electric current and moment of torsion of comprehensively monitoring diagnosis screw pump, for science, evaluate screw rod pump performance in time a kind of effective means is provided.Therefore this system have that test is quick accurately, the advantage such as test result direct display and low testing cost.
Accompanying drawing explanation
Fig. 1 apparatus of the present invention principle of compositionality block diagram
Fig. 2 apparatus of the present invention sensor sample treated section block diagram
In figure: 1, screw pump oil production pump, 2, sensor, 3, signal processing circuit; 4, parameter setting circuit; 5, single-chip microcomputer; 6, control circuit; 7, display device; 8, upper-position unit; 9, data storage; 10, print output circuit; 11, cover pressure sensor; 12, oil pressure sensor; 13, voltage transducer; 14 current sensors; 15, torque sensor
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
Be arranged on polished rod upper sensor and gather oil pressure, casing pressure, voltage, electric current, rotating speed and torque signal, and a little less than converting to, voltage signal sensor all adopts bridge-type strain gauge sensor, and the resistance of 4 resistance equates to be operating resistance, two tension pressurizeds during work, while making like this sensitivity of electric bridge rise to monolithic work 4 times, then, pre-amplification circuit sensor collect that weak voltage signals suitably amplifies, filtering, shaping is converted to digital signal and send single-chip microcomputer.These a few railway digital signals send upper-position unit show, store or print after single-chip microcomputer is processed.The screw pump 1 of mentioning in the embodiment here can be helical rotor pump, two screw pump or multi screwpump, and sensor 2 refers in particular to bridge-type strain gauge sensor, signal processing circuit 3, parameter setting circuit 4, comprises pre-amplification circuit and A/D change-over circuit.Here said pre-amplification circuit, refers to the high and low drift of input resistance, wide band, high gain, can realize circuit or the integrated circuit module of weak voltage signals enlarging function.Single-chip microcomputer is the programmable special intergrated circuit of general reference.Upper-position unit is the miniature built-in industrial control machine of general reference, can be compatible with PC.
Claims (9)
1. a screw pump oil production real time monitoring apparatus, is characterized in that: between screw pump (1), sensor (2), signal processing circuit (3), parameter setting circuit (4), single-chip microcomputer (5), control circuit (6), display device (7), upper-position unit (8), data storage (9), print output circuit (10), be mutually electrically connected to.
2. according to a kind of screw pump oil production real time monitoring apparatus of claim 1, it is characterized in that: described sensor (2) is assembly structure, by cover pressure sensor (11), oil pressure sensor (12), voltage transducer (13), current sensor (14), torque sensor (15) etc., formed.
3., according to a kind of screw pump oil production real time monitoring apparatus of claim 1, it is characterized in that: sensor (2) is through signal processing circuit (3), parameter setting circuit (4) input single-chip microcomputer (5), the signal that single-chip microcomputer (5) collects is after upper-position unit (8) is processed, by control circuit (6), control screw pump (1), display device (7) and storage (9) show in real time and store.
4. according to a kind of screw pump oil production real time monitoring apparatus of claim 1, it is characterized in that: described screw pump (1) can be helical rotor pump, two screw pump or multi screwpump.
5. according to a kind of screw pump oil production real time monitoring apparatus of claim 1, it is characterized in that: described sensor (2) refers in particular to bridge-type strain gauge sensor.
6. according to a kind of screw pump oil production real time monitoring apparatus of claim 1, it is characterized in that: described signal processing circuit (3), parameter setting circuit (4) comprise pre-amplification circuit and A/D change-over circuit.
7. according to a kind of screw pump oil production real time monitoring apparatus of claim 1, it is characterized in that: described pre-amplification circuit, refer to the high and low drift of impedance, wide band, high gain, can realize circuit or the integrated circuit module of weak voltage signals enlarging function.
8. according to a kind of screw pump oil production real time monitoring apparatus of claim 1, it is characterized in that: described single-chip microcomputer (5) is general reference special intergrated circuit able to programme.
9. according to a kind of screw pump oil production real time monitoring apparatus of claim 1, it is characterized in that: described upper-position unit (8) is the miniature built-in industrial control machine of general reference, and can be compatible with PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210405321.0A CN103727030A (en) | 2012-10-16 | 2012-10-16 | Screw pump oil production real-time monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210405321.0A CN103727030A (en) | 2012-10-16 | 2012-10-16 | Screw pump oil production real-time monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103727030A true CN103727030A (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210405321.0A Pending CN103727030A (en) | 2012-10-16 | 2012-10-16 | Screw pump oil production real-time monitoring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103727030A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481894A (en) * | 2014-11-28 | 2015-04-01 | 东营广兴石油装备有限公司 | Centrifugal electric submersible pump downhole torque testing system |
| CN105239970A (en) * | 2015-11-12 | 2016-01-13 | 杭州乾景科技有限公司 | Submersible direct-drive screw pump oil production equipment |
| CN105649978A (en) * | 2016-02-02 | 2016-06-08 | 西南石油大学 | Device and method for diagnosing faults and testing performance of single-screw pump |
-
2012
- 2012-10-16 CN CN201210405321.0A patent/CN103727030A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481894A (en) * | 2014-11-28 | 2015-04-01 | 东营广兴石油装备有限公司 | Centrifugal electric submersible pump downhole torque testing system |
| CN105239970A (en) * | 2015-11-12 | 2016-01-13 | 杭州乾景科技有限公司 | Submersible direct-drive screw pump oil production equipment |
| CN105649978A (en) * | 2016-02-02 | 2016-06-08 | 西南石油大学 | Device and method for diagnosing faults and testing performance of single-screw pump |
| CN105649978B (en) * | 2016-02-02 | 2017-09-19 | 西南石油大学 | Single-screw (single screw) pump fault diagnosis and performance testing device and method |
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Application publication date: 20140416 |