CN205404034U - Pressure sensor calibration device for measurement while drilling - Google Patents
Pressure sensor calibration device for measurement while drilling Download PDFInfo
- Publication number
- CN205404034U CN205404034U CN201620127737.4U CN201620127737U CN205404034U CN 205404034 U CN205404034 U CN 205404034U CN 201620127737 U CN201620127737 U CN 201620127737U CN 205404034 U CN205404034 U CN 205404034U
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- pressure
- pressure sensor
- pressure transducer
- measurement
- drilling
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Abstract
The utility model discloses a pressure sensor calibration device for measurement while drilling comprises pumping source system, sensor mounting structure, solenoid valve and solenoid valve control box, the pumping source system can provide stable, adjustable circulation water pressure, sensor mounting structure can different grade type easy to assemble pressure sensor for the measurement while drilling, solenoid valve control box control solenoid's the switch that is interrupted, simulation produce the pressure pulse signal, through the signal amplitude who rectifies pressure sensor, reach the purpose of rectifying the pressure sensor small signal and detecting, the solenoid valve control box control solenoid close, and piecewise adjustment pumping source pressure through linear match pressure sensor pressure curve, is done with standard pressure and is compared, writes in correction factor into the pressure sensor module, reaches the purpose of calibration pressure sensor static detection precision. The utility model is suitable for an it is wireless along with boring measurement system, solve the detection signal precision deviation problem that pressure sensor appears in the use of well site.
Description
Technical field
This utility model relates to a kind of petroleum drilling engineering with boring instrument ground field tests, is specifically related to a kind of measurement while drilling pressure sensor calibrating device.
Background technology
In Process of Oil Well Drilling, especially, in the drilling process of the complex structural well such as horizontal well, extended reach well and Multilateral Wells, well site personnel need the various downhole parameters of understanding in real time to be completed by measurement while drilling (MWD), well logging during (LWD) system.
The information transferring method of measurement while drilling mainly has four kinds: wire cable method, mud-pulse method, sonic method and Electromagnetic Wave Method, and each way has its limitation and the scope of application, is wherein most widely used with mud-pulse method, reliably.
Wherein mud-pulse method actually used in, relatively more crucial part is disposed on the pressure transducer of ground high pressure vertical tube, and this pressure transducer measures the pulsating pressure change that the action of shaft bottom mud pulse generator produces.Shaft bottom pulse code method is varied, is roughly divided into three classes: pulse position modulation coding (OOK code), Manchester's code (M code), combinational code (MinN code).No matter it is that coded system, is required for pressure transducer and pulsating pressure change is converted into the signal of telecommunication, be input to ground data acquisition and process system, carry out filtering accordingly, decoding computing, and then obtain bottomhole attitude information.
It is substantial amounts of it was verified that the reliability of measurement while-drilling instrument is played vital effect by high accuracy, highly sensitive pressure transducer.Pressure transducer is carried out suitable demarcation, it is possible to effectively reduce the measurement while-drilling instrument ground system bit error rate, improve drilling efficiency.
Utility model content
The purpose of this utility model is aiming at the defect that prior art exists, it is provided that a kind of high accuracy, highly sensitive measurement while drilling pressure sensor calibrating device.
Its technical scheme is: a kind of measurement while drilling pressure sensor calibrating device, including pump source system, sensor fixing structure, electromagnetic valve and electromagnetic valve control box, it is characterized in that: pump source system, sensor fixing structure, electromagnetic valve is linked in sequence, electromagnetic valve controls box and is located on electromagnetic valve, the left side of sensor fixing structure is located at by first pressure transducer joint, the right side of sensor fixing structure is located at by second pressure transducer joint, the upside of sensor fixing structure is located at by 3rd pressure transducer joint, the downside of sensor fixing structure is located at by 4th pressure transducer joint.
As a kind of optimal technical scheme of the present utility model, described first pressure transducer joint, the second pressure transducer joint, the 3rd pressure transducer joint, the 4th pressure transducer joint can be changed.
As a kind of optimal technical scheme of the present utility model, described pump source system can provide stable, adjustable cyclic hydrostatic pressure.
As a kind of optimal technical scheme of the present utility model, described electromagnetic valve controls box can control the switch of electromagnetic valve.
It should be noted that sensor fixing structure can conveniently install different types of measurement while drilling pressure transducer, for adapting to different pressure transducer pressure interface types, it is possible to realize by exchanging pressure transducer joint.
This utility model compared with prior art, has the advantage that the pressure transducer of wireless drilling measurement system needs the parameter measured to be standpipe static pressure force value and shaft bottom pulsating pressure changing value, it is desirable to pressure transducer higher precision and sensitivity.Electronicmagnetic control box controls the switch of the interruption of electromagnetic valve, and simulation produces pressure pulse signal, by the signal amplitude of calibrating (base measuring) pressure sensor, reaches the purpose of calibrating (base measuring) pressure sensor Detection of Weak Signals；Electronicmagnetic control box controls closed electromagnetic valve, segmentation adjusts pump outlet pressure, detects pressure curve by linear fit pressure transducer, compares with normal pressure, correction factor is written in pressure transducer detection module, reaches the purpose of calibrating pressure sensor Static Detection precision.This utility model simple in construction, reliable operation, it is adaptable to wireless drilling measures system, solve the detection signal accuracy offset issue that pressure transducer occurs in the use procedure of well site.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of measurement while drilling pressure sensor calibrating device of this utility model.
Detailed description of the invention
With reference to Fig. 1, a kind of measurement while drilling pressure sensor calibrating device, including pump source system 8, sensor fixing structure 3, electromagnetic valve 5 and electromagnetic valve control box 6, it is characterized in that: pump source system 8, sensor fixing structure 3, electromagnetic valve 5 is linked in sequence, electromagnetic valve controls box 6 and is located on electromagnetic valve 5, the left side of sensor fixing structure 3 is located at by first pressure transducer joint 1, the right side of sensor fixing structure 3 is located at by second pressure transducer joint 4, the upside of sensor fixing structure 3 is located at by 3rd pressure transducer joint 2, the downside of sensor fixing structure 3 is located at by 4th pressure transducer joint 7.
As a kind of optimal technical scheme of the present utility model, described first pressure transducer joint the 1, second pressure transducer joint the 4, the 3rd pressure transducer joint the 2, the 4th pressure transducer joint 7 can be changed.
As a kind of optimal technical scheme of the present utility model, described pump source system 8 can provide stable, adjustable cyclic hydrostatic pressure.
As a kind of optimal technical scheme of the present utility model, described electromagnetic valve controls box 6 can control the switch of electromagnetic valve 5.
It should be noted that sensor fixing structure 3 can conveniently install different types of measurement while drilling pressure transducer, for adapting to different pressure transducer pressure interface types, it is possible to realize by exchanging pressure transducer joint.
Pressure transducer static demarcating: pressure transducer to be calibrated installed by the first pressure transducer joint 1 and the second pressure transducer joint 4, and standard pressure transducer installed by the 3rd pressure transducer joint 2 and the 4th pressure transducer joint 7.Opening pump source system 8, it is provided that 1Mpa pressure, electromagnetic valve control box 6 controls electromagnetic valve 5 and closes, and keeps pressure 10 minutes, records pressure transducer to be calibrated and standard pressure transducer output meansigma methods: x1, y1；Improve pump source system 8 pressure to 2Mpa, keep pressure 10 minutes, record pressure transducer to be calibrated and standard pressure transducer output meansigma methods: x2, y2；Improve pump source system 8 pressure to 3Mpa, keep pressure 10 minutes, record pressure transducer to be calibrated and standard pressure transducer output meansigma methods: x3, y3；Improve pump source system 8 pressure to 4Mpa, keep pressure 10 minutes, record pressure transducer to be calibrated and standard pressure transducer output meansigma methods: x4, y4.X1-x4, y1-y4 are done linear fit, obtains curve y=kx+b, coefficient is write ground data acquisition and the storage of process system, the static demarcating value of pressure transducer can be obtained.
Pressure transducer dynamic calibration: pressure transducer to be calibrated installed by the first pressure transducer joint 1 and the second pressure transducer joint 4, and standard pressure transducer installed by the 3rd pressure transducer joint 2 and the 4th pressure transducer joint 7.Opening pump source system 8, it is provided that 2Mpa pressure, electromagnetic valve controls box 6 according to shaft bottom coded system, controls electromagnetic valve 5 interruption and opens or closes.Recording pressure transducer to be calibrated and standard pressure transducer output pulsating pressure amplitude and pulse width, continuously record 20 groups, take amplitude meansigma methods and be designated as M1, M2, taking pulse width meansigma methods is N1, N2.Adjust pressure sensor inside parameter to be calibrated, make M1 and M2, N1 and N2 error all within 0.5%, complete pressure transducer dynamic calibration.
During this utility model application, it is necessary to other ground systems measuring system with wireless drilling work together, and corresponding calibrating parameters is stored in pressure transducer and ground system.
Being presented above a kind of implementation of the present utility model and principle, also need to the concrete structure of each parts is carried out detailed design in actual applications, any other ways of realization based on this patent principle are all within the scope of this patent.
Claims (4)
1. a measurement while drilling pressure sensor calibrating device, including pump source system (8), sensor fixing structure (3), electromagnetic valve (5) and electromagnetic valve control box (6), it is characterized in that: pump source system (8), sensor fixing structure (3), electromagnetic valve (5) is linked in sequence, electromagnetic valve controls box (6) and is located on electromagnetic valve (5), the left side of sensor fixing structure (3) is located at by first pressure transducer joint (1), the right side of sensor fixing structure (3) is located at by second pressure transducer joint (4), the upside of sensor fixing structure (3) is located at by 3rd pressure transducer joint (2), the downside of sensor fixing structure (3) is located at by 4th pressure transducer joint (7).
2. a kind of measurement while drilling pressure sensor calibrating device according to claim 1, it is characterised in that: described first pressure transducer joint (1), the second pressure transducer joint (4), the 3rd pressure transducer joint (2), the 4th pressure transducer joint (7) can be changed.
3. a kind of measurement while drilling pressure sensor calibrating device according to claim 1, it is characterised in that: described pump source system (8) can provide stable, adjustable cyclic hydrostatic pressure.
4. a kind of measurement while drilling pressure sensor calibrating device according to claim 1, it is characterised in that: described electromagnetic valve controls box (6) can control the switch of electromagnetic valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620127737.4U CN205404034U (en) | 2016-02-19 | 2016-02-19 | Pressure sensor calibration device for measurement while drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620127737.4U CN205404034U (en) | 2016-02-19 | 2016-02-19 | Pressure sensor calibration device for measurement while drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205404034U true CN205404034U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620127737.4U Expired - Fee Related CN205404034U (en) | 2016-02-19 | 2016-02-19 | Pressure sensor calibration device for measurement while drilling |
Country Status (1)
| Country | Link |
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| CN (1) | CN205404034U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693209A (en) * | 2020-05-20 | 2020-09-22 | 中海油田服务股份有限公司 | Test device for annulus pressure sensor of pressure measurement while drilling instrument |
| CN112304490A (en) * | 2020-10-26 | 2021-02-02 | 中国航空工业集团公司北京长城计量测试技术研究所 | Modulation type combined sinusoidal pressure cavity |
| CN113686374A (en) * | 2021-09-03 | 2021-11-23 | 贝兹维仪器(苏州)有限公司 | Sensor testing device for simulating high-frequency vibration rotation of drilling |
| CN115016034A (en) * | 2022-06-01 | 2022-09-06 | 中国科学院地质与地球物理研究所 | Calibration method of measurement while drilling device |
-
2016
- 2016-02-19 CN CN201620127737.4U patent/CN205404034U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693209A (en) * | 2020-05-20 | 2020-09-22 | 中海油田服务股份有限公司 | Test device for annulus pressure sensor of pressure measurement while drilling instrument |
| CN112304490A (en) * | 2020-10-26 | 2021-02-02 | 中国航空工业集团公司北京长城计量测试技术研究所 | Modulation type combined sinusoidal pressure cavity |
| CN112304490B (en) * | 2020-10-26 | 2021-11-30 | 中国航空工业集团公司北京长城计量测试技术研究所 | Modulation type combined sinusoidal pressure cavity |
| CN113686374A (en) * | 2021-09-03 | 2021-11-23 | 贝兹维仪器(苏州)有限公司 | Sensor testing device for simulating high-frequency vibration rotation of drilling |
| CN113686374B (en) * | 2021-09-03 | 2023-11-17 | 贝兹维仪器(苏州)有限公司 | Sensor testing device for simulating high-frequency vibration rotation of drilling well |
| CN115016034A (en) * | 2022-06-01 | 2022-09-06 | 中国科学院地质与地球物理研究所 | Calibration method of measurement while drilling device |
| WO2023231444A1 (en) * | 2022-06-01 | 2023-12-07 | 中国科学院地质与地球物理研究所 | Calibration method for measurement-while-drilling device |
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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: 20160727 Termination date: 20170219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |