CN106996292A - The integrated downhole temperature pressure-measuring system of high temperature - Google Patents
The integrated downhole temperature pressure-measuring system of high temperature Download PDFInfo
- Publication number
- CN106996292A CN106996292A CN201610043918.3A CN201610043918A CN106996292A CN 106996292 A CN106996292 A CN 106996292A CN 201610043918 A CN201610043918 A CN 201610043918A CN 106996292 A CN106996292 A CN 106996292A
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- high temperature
- temperature
- pressure
- sensor
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- 230000003750 conditioning effect Effects 0.000 claims abstract description 13
- 238000003860 storage Methods 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 230000003321 amplification Effects 0.000 claims description 22
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 22
- 238000001914 filtration Methods 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 4
- 229910052594 sapphire Inorganic materials 0.000 claims description 3
- 239000010980 sapphire Substances 0.000 claims description 3
- 230000002463 transducing effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 239000003129 oil well Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000219104 Cucurbitaceae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
Abstract
The present invention discloses a kind of integrated downhole temperature pressure-measuring system of high temperature.It is to be respectively fed to amplify conditioning unit by the signal of high temperature high precision temperature sensor and pressure sensor to be filtered the analog voltage signal under temperature and pressure changing, amplify, compensate and access CPU again, carried out accessing record storage in high temperature storage unit after digital conversion by CPU, and the high temperature TT＆C system and data communication interface, the programming mouth that are constituted with temperature sensor, power supply unit collectively constitute the integrated individual chips of a high temperature and realized.It thoroughly changes scattered traditional measuring instrument circuit structure, integrated level and intellectuality is low, poor reliability, maintenance difficult situation, high temperature underground survey is become a reality.It, which can be directly entered oil reservoir, which once goes into the well, just can complete that the temperature and pressure of different depth are accurately measured, stored and handled, and have the advantages that inventive concept uniqueness, reasonable in design, easy to use and flexible, suitable industry are promoted.
Description
Technical field
The present invention relates to a kind of measurement and control system, more particularly to oil well bet is adopted in field and geology underground measurement and control area to temperature and the measurement and control system of pressure.
Background technology
In the stage both at home and abroad in terms of HTHP oil-gas field development all in starting development, be all a huge challenge to domestic and international oil play at present.The imperial HTHP gas field in Gourde(G) positioned at North Sea Norway side marine site, is shelved for a long time after finding within 1975, until just input exploitation in recent years, is just formally produced in April, 2014.It can be seen that there is certain difficulty.As deep-sea is moved towards in world's oil-gas exploration, increasing sea HTHP oil gas field will be found, this piece emerging " virgin land " also by as various countries compare with strength, display technique wonderful stage.Compared to land, marine HTHP gas field is influenceed and limitation by multiple factors such as platform spaces, and development difficulty is bigger.The pressure coefficient in Determing The Length gas field is between 1.0, and the pressure coefficient of east 13rd area oil-gas reservoir reaches 1.8-2.1, and bottom hole temperature (BHT) is more than 150 DEG C, it is seen that development difficulty is big.During oil is exploited, the temperature and pressure of underground are essential measurement parameters, and accurate downhole temperature and pressure measurement all have for oil well monitor etc. to be of great significance.Those skilled in the art are both known about, and after oil field is gone into operation, with the growth of recovery time, formation pressure constantly declines, and underground crude oil largely deaerates, and viscosity increase, oil well output is gradually decreased, or even can stop-spraying stopping production.In order to which the underground caused by making up after crude oil extraction is in debt, keep or improve formation pressure, oil field stable high yield is realized, effective method is water (or gas) injection oil reservoir, to supplement and keep oily (or gas) stressor layer using water injection well.But take these could to be carried out after having overall understanding to conditions down-hole when operating.Understanding especially to temperature and pressure condition is particularly important with grasping.In traditional well temperature and pressure measuring service, typically using infrared radiation thermometer, infrared thermography, array of temperature sensor etc..Because subsurface environment severe temperatures are high, existing tester can not bear more than 150 DEG C larger high temperature, certainly will produce test error, and have that circuit structure is scattered, volume greatly, integrated level and intelligence degree is low, poor reliability, maintenance difficult the problem of.
The content of the invention
It is an object of the invention to provide a kind of integrated downhole temperature pressure-measuring system of high temperature, to realize the detection of temperature and pressure under the high-temperature severe environment of 200 DEG C of underground, at the same solve that traditional measuring instrument circuit structure is scattered, volume is big, integrated level and intelligence degree is low, poor reliability, maintenance difficult the problem of.
The present invention is to utilize sapphire high temperature high precision temperature sensor and pressure sensor, the transducing signal of the high temperature high precision temperature sensor and pressure sensor is respectively fed to amplify conditioning unit, temperature is filtered with the analog voltage signal under pressure changing, amplification, compensation accesses CPU again, the record storage in access high temperature storage unit after the digital conversion of CPU progress, and with high temperature high precision temperature sensor, high temperature TT＆C system and data communication interface that power supply unit is constituted, programming mouth collectively constitutes what the integrated individual chips of a high temperature were realized.
Described amplification conditioning unit be by the analog voltage signal of the high temperature high precision temperature sensor and pressure sensor respectively through pressure protection, filter and amplification, amplification shaping, Butterworth filtering or filter and amplification, amplification shaping, Butterworth filtering, overvoltage protection subsequent treatment steps handle after send into CPU.
Described power supply unit, is 7.2v the and 3.6v power supplys for providing double cell, is converted into 5V and 2.5v, and output end carries out high temperature resistant compensation using amplifier closed-loop feedback manner to it, power supply unit output is maintained in the range of precision ± 0.0005v stationary values.
The present invention is due to taking the high temperature TT＆C system that the integrated individual chips of high temperature are constituted, plus high temperature high precision temperature, the combination of pressure sensor, revolutionize that traditional measuring instrument circuit structure is scattered, volume is big, integrated level and intelligence degree is low, poor reliability, the situation of maintenance difficult, high temperature downhole temperature is become a reality with pressure measxurement.Its overall heat resisting and pressure resisting shell encapsulation, measurement, storage and the processing of temperature and pressure to different depth can just be completed by ensureing once to go into the well in adverse circumstances, and due to being provided with the power supply and sensor construction of high temperature resistant compensation, enable the system to ensure that measurement accuracy is directly entered in oil reservoir to measure, the transmission medium of centre is eliminated, to avoid causing unnecessary distortion.Control section and handheld terminal then realize the docking, processing and storage of information on well, and accurately temperature and pressure accurately can be measured.And have the advantages that inventive concept uniqueness, reasonable in design, easy to use and flexible, suitable industry are promoted.
Brief description of the drawings
Fig. 1 is electrical block diagram of the invention；
Fig. 2 is amplification conditioning unit structural representation.
Embodiment
The integrated downhole temperature pressure-measuring system of the high temperature of the invention shown in Fig. 1-Fig. 2 is that the integrated individual chips of high temperature that a high temperature high precision pressure sensor 1 and a high temperature TT＆C system using sapphire as sensing element is collectively constituted plus data communication interface, programming mouth are constituted.Wherein described high temperature TT＆C system is by high temperature high precision temperature sensor and pressure sensor 2,1（Hereinafter referred to as temperature sensor and pressure sensor）Transducing signal be analog voltage signal be respectively fed to amplification conditioning unit 3, amplification conditioning unit 3 ', analog voltage at temperature and pressure changing is filtered, amplify, compensates and accesses CPU 4 again, carried out accessing record storage in high temperature storage unit 5 after digital conversion by CPU 4, and constituted with temperature sensor 2, power supply unit 6.Described amplification conditioning unit 3, amplification conditioning unit 3 ' be by the analog voltage signal of the temperature sensor 2 and pressure sensor 1 distinguish filtered amplification 8, amplification shaping 9, Butterworth filtering 10, overvoltage protection 7 subsequent treatment steps capacitance-resistance filter amplification, differential amplification mode carried out to it carry out rear class filtering shaping; interference noise is eliminated by Butterworth filtering filter, then CPU 4 is sent into through overvoltage compensation.Described power supply unit 6 is 7.2v the and 3.6v DC voltages provided by double cell, and the high temperature resistant compensation of power supply 6 is realized in output using amplifier closed-loop feedback manner, power supply unit output is maintained in the range of stationary value.Ensure outputting standard 5V and the 2.5v voltage of power supply unit 6, precision ± 0.0005v.It is supplied respectively to pressure sensor 1, temperature sensor 2, amplification conditioning unit 3, amplification conditioning unit 3 ' and CPU 4.All components are high-temperature-resistant structure and set highly integrated as an individual chips on the same substrate with data communication interface, programming mouthful in described high temperature TT＆C system.
During installation, the high temperature TT＆C system in the integrated individual chips of pressure sensor 1 and high temperature is connected, and is integrally placed in outside sealing inserting tube.
During work, the present invention can with steel wire to underground, temperature sensor 2, pressure sensor 1 gather downhole temperature, pressure signal, to CPU 4 after amplified conditioning unit 3,3 ' is handled respectively, by memory cell 5 by data storage, computer, which is reached, eventually through communication interface carries out data processing, generate pressure curve, temperature time curve etc., simultaneously, computer is according to gathered data, generation log data is simultaneously analyzed, and the present invention realizes the data acquisitions such as the extensive, static pressure of underground pressure under hot environment.Possesses the data accumulating of each mouth well, the optimization of many kinds of parameters such as data readback, comprehensive parameters evaluation and intellectual analysis.The software systems of the present invention are handled using digital filtering, calibration factor of sensor host computer automatic Fitting, automaticdata generation.
Claims (3)
1. a kind of integrated downhole temperature pressure-measuring system of high temperature, it utilizes sapphire high temperature high precision temperature sensor and pressure sensor（2、1）, it is characterised in that：By the high temperature high precision temperature sensor and pressure sensor（2、1）Transducing signal be respectively fed to amplify conditioning unit（3、3′）, the analog voltage signal at temperature and pressure changing is filtered, amplify, compensates and accesses CPU again（4）, by CPU（4）High temperature storage unit is accessed after carrying out digital conversion（5）Middle record storage, and and temperature sensor（2）, power supply unit（6）The high temperature TT＆C system and data communication interface of composition, programming mouthful collectively constitute the integrated individual chips of a high temperature.
2. the integrated downhole temperature pressure-measuring system of high temperature according to claim 1, it is characterised in that：Described amplification conditioning unit（3、3′）It is by the temperature sensor and pressure sensor（2、1）Analog voltage signal respectively through pressure protect（7）, filter and amplification（8）, amplification shaping（9）, Butterworth filtering（10）Or filter and amplification（8）, amplification shaping（9）, Butterworth filtering（10）, overvoltage protection（7）Subsequent treatment steps processing after send into CPU.
3. the integrated downhole temperature pressure-measuring system of high temperature according to claim 1, it is characterised in that：Described power supply unit（6）, it is 7.2v the and 3.6v power supplys that double cell is provided, is converted into 5V and 2.5v, and output end carries out high temperature resistant compensation using amplifier closed-loop feedback manner to it, makes power supply unit（6）Output is maintained in the range of precision ± 0.0005v stationary values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610043918.3A CN106996292A (en) | 2016-01-22 | 2016-01-22 | The integrated downhole temperature pressure-measuring system of high temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610043918.3A CN106996292A (en) | 2016-01-22 | 2016-01-22 | The integrated downhole temperature pressure-measuring system of high temperature |
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| Publication Number | Publication Date |
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| CN106996292A true CN106996292A (en) | 2017-08-01 |
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| CN201610043918.3A Pending CN106996292A (en) | 2016-01-22 | 2016-01-22 | The integrated downhole temperature pressure-measuring system of high temperature |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108563163A (en) * | 2018-03-12 | 2018-09-21 | 中国地质大学（武汉） | A kind of simulation underground temperature and pressure signal acquisition display instrument |
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| US5146788A (en) * | 1990-10-25 | 1992-09-15 | Becton, Dickinson And Company | Apparatus and method for a temperature compensation of a catheter tip pressure transducer |
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| CN103398791A (en) * | 2013-08-19 | 2013-11-20 | 山东新风光电子科技发展有限公司 | Temperature acquisition device for cooling fins in power units of high-voltage inverter |
| JP5567752B1 (en) * | 2014-02-25 | 2014-08-06 | 株式会社ヒロセー | String monitoring system |
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| CN202513632U (en) * | 2012-04-14 | 2012-10-31 | 漳州科华技术有限责任公司 | Double-loop highly-reliable charging controlling device |
| CN202737505U (en) * | 2012-07-02 | 2013-02-13 | 青岛威力风光发电设备有限公司 | Boost charging circuit of storage battery |
| CN103398791A (en) * | 2013-08-19 | 2013-11-20 | 山东新风光电子科技发展有限公司 | Temperature acquisition device for cooling fins in power units of high-voltage inverter |
| 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 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108563163A (en) * | 2018-03-12 | 2018-09-21 | 中国地质大学（武汉） | A kind of simulation underground temperature and pressure signal acquisition display instrument |
| CN108563163B (en) * | 2018-03-12 | 2019-09-17 | 中国地质大学（武汉） | A kind of simulation underground temperature and pressure signal acquisition display instrument |
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Application publication date: 20170801 |