CN1837576A - Storage type downhole pressure and temperature continuous-measuring apparatus - Google Patents
Storage type downhole pressure and temperature continuous-measuring apparatus Download PDFInfo
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- CN1837576A CN1837576A CNA2006100791234A CN200610079123A CN1837576A CN 1837576 A CN1837576 A CN 1837576A CN A2006100791234 A CNA2006100791234 A CN A2006100791234A CN 200610079123 A CN200610079123 A CN 200610079123A CN 1837576 A CN1837576 A CN 1837576A
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Abstract
The invention relates to a storage continuous measuring under-well pressure temperature device, which comprises a storage under-well pressure temperature gaga and a ground electric depth recorder. Wherein, the storage under-well pressure temperature gags is used to store the pressure and temperature of collected measuring point; and the ground electric depth recorder is used to automatically recorder the well depth of measuring point. The invention has quick response, which can attain accurate data in 5 seconds, and automatically store the temperature and pressure data and the well depth at the measuring point, with high efficiency.
Description
Technical field
The present invention relates to a kind ofly in the oil exploitation process, be used to monitor the measuring apparatus of the down-hole state of oil gas well, this measuring apparatus can continuous measurement pit shaft pressure inside, the temperature and pressure distribution situation.
Background technology
At present, be used to monitor the measuring apparatus of oil gas well down-hole state, all be to use both at home and abroad usually down-hole electron pressure thermometer to come pressure and temperature under the measuring well.Down-hole electron pressure thermometer is by pressure sensor temperature and pressure to be measured, because pressure sensor will reach the balance with ambient temperature, need one period stand-by period, therefore when measuring well downforce, temperature, must stop the time more than 5 minutes in position to be measured, just can obtain tested point Temperature numerical accurately.In addition, the degree of depth of tested point needs hand-kept.After reading the data of pressure thermometer, the degree of depth, pressure, the temperature of each tested point are carried out manual correspondence, and then carry out gradient calculation, it is loaded down with trivial details not only to work, and is easy to generate mistake, and operating efficiency is lower.
Summary of the invention
At the deficiencies in the prior art, the object of the present invention is to provide a kind of can the continuously and quickly measuring down-hole pressure, temperature and write down the storage type downhole pressure and temperature continuous-measuring apparatus of the measuring point down-hole degree of depth automatically.
For achieving the above object, a kind of memory-type continuous measurement down-hole pressure of the present invention and thermometer, comprise memory-type down-hole pressure thermometer and ground electronic depth recorder, wherein, memory-type down-hole pressure thermometer is used to gather the pressure and temperature of measuring point and store, and ground electronic depth recorder is used for writing down automatically the down-hole degree of depth of measuring point.
Further, described memory-type down-hole pressure thermometer comprises temperature collect module, pressure acquisition module, A/D modular converter, clock module, main control module, memory module and power module, wherein, temperature collect module is used to gather the temperature signal of measuring point and is transferred to the A/D modular converter; The pressure acquisition module is used to gather the pressure signal of measuring point and is transferred to the A/D modular converter; The A/D conversion module carries out temperature signal and the pressure signal that receives digital-to-analogue conversion and is transferred to main control module; Clock module is used for providing clock signal to main control module; Main control module is provided with the mode of operation of A/D modular converter, and with the temperature and pressure data be transferred to memory module after clock signal combines and store or read data in the memory module; Memory module is used to store the data of main control module transmission; Power module provides electric energy for each module.
Further, described main control module has serial communication interface, and main control module temperature and pressure data that will receive or that read from memory module are transferred to outer PC by this serial communication interface.
Further, also comprise power interface, external power source provides electric energy by this power interface to each module.
Further, described temperature collect module is a platinum resistance temperature sensor, and described pressure acquisition module is a pressure sensor.
Compared with prior art, memory-type continuous measurement down-hole pressure of the present invention and thermometer, pressure and temperature reaction speed to the down-hole measuring point is fast, just can access accurate data within 5 seconds, can also automatically the temperature and pressure data of measuring point be stored, and write down the down-hole degree of depth of measuring point automatically, and easy to use, high efficiency.
Description of drawings
Fig. 1 is the schematic diagram of memory-type down-hole pressure thermometer;
Fig. 2 is the structural representation of memory-type down-hole pressure thermometer;
Fig. 3 is the flow chart of memory-type down-hole pressure thermometer.
The specific embodiment
Below in conjunction with the attached soil figure and the specific embodiment the present invention is further specified, but be not limitation of the present invention.
Storage type downhole pressure and temperature continuous-measuring apparatus comprises two parts, and a part is a memory-type down-hole pressure thermometer, and another part is a ground electronic depth recorder.The pressure and temperature data of memory-type down-hole pressure thermometer measure and record down-hole, the point position of ground electronic depth recorder record memory-type down-hole pressure thermometer is the degree of depth of down-hole, these two groups of data with time parameter as a reference, after utilizing software to merge synchronously, just obtaining with the degree of depth is the continuous down-hole pressure temperature curve of abscissa, by this curve the situation of downhole production is analyzed.Wherein, ground electronic depth recorder can select for use oil that Varco International Inc. company produces with winch (winch) WAC6-000, by oil with the degree of depth of winch under just can measuring well.
Among Fig. 1, memory-type down-hole pressure thermometer comprises temperature pick up 101, pressure sensor 102, A/D modular converter 103, main control module 104, serial communication interface 106, clock module 108, memory module 109 and power module 111.Wherein, temperature pick up 101 is a platinum resistance temperature sensor, is used to gather the temperature signal of measuring point and is transferred to A/D modular converter 103; Pressure sensor 102 is used to gather the pressure signal of measuring point and is transferred to A/D modular converter 103; A/D conversion module 103 is with the temperature signal, the down-hole pressure signal that receive and proofread and correct with selection of temperature signal and carry out digital-to-analogue conversion and be transferred to main control module 104; Clock module 108 is used for providing clock signal to main control module 104; Main control module 104 is core components of memory-type down-hole pressure thermometer, and major function comprises: by communicating by letter of serial communication interface 106 and outer PC, and finish reading image data in the storage chip; Control A/D modular converter is gathered data such as downhole temperature, pressure, and stores into the data that collect in the storage chip or by serial ports data are directly sent to the PC end; Identification communication pattern and memory module are finished different operating state under the memory module, comprise the concrete control of sleep state, data acquisition state, store status.Mode of operation to A/D modular converter 103 is provided with, and with the temperature and pressure data be transferred to memory module 109 after clock signal combines and store or read data in the memory module; Serial communication interface 106 is given outer PC with main control module 104 temperature and pressure transfer of data that receive or that read from memory module 109; Memory module 109 is used to store the data of main control module 104 transmission and the coefficient file that pressure calibration is used; Power module 111 provides electric energy for each module.In addition, electric energy also can be by being provided with power interface 112, by power interface 112 by external power source each module for power supply to memory-type down-hole pressure thermometer.Temperature and pressure data that main control module 104 will receive or that read from memory module 109 are transferred to outside PC by wireless signal transmitting module 107.
The acquisition method of above-mentioned Tc utilizes A/D7714 to gather.Since the pressure and temperature of down-hole be at any time all change dynamically in, the pressure of each measuring point and temperature are all inequality.Pressure sensor 102 because temperature can exert an influence to the pressure that collects also changing, causes data inaccurate when gathering pressure signal.In order to make the force value that collects more accurate, utilize the downhole temperature signal of gathering, therefore, when handling, pressure is proofreaied and correct with the temperature value that collects.
In addition, because each pressure sensor 102 difference during fabrication, the zero point of its pressure and sensitivity all have difference, so before formal the use, should demarcate pressure sensor earlier, the purpose of demarcating is that the original value that pressure sensor is collected is corresponding with actual pressure and temperature value, when carrying out the data processing, can contrast original value and actual value like this, make it more approaching with actual pressure and temperature.The process of demarcating is by being added in constantly clocklike changing of pressure and temperature value on the pressure sensor, and circuit part collects a series of reset pressure and temperature value, handles obtaining the coefficient file by data.Therefore, the coefficient file that the storage pressure calibration is used in memory module 109 is with the numerical value accuracy that guarantees that pressure sensor records.
Accompanying drawing 2 is the concrete structure of memory-type down-hole pressure thermometer: in stainless steel casing, battery in the battery case 1 links to each other with circuit board 4 by power connection 2, the bottom of circuit board 4 connects pressure sensor 5, pressure sensor 5 is fixed in the housing by sensor pressure cap 3, fixing by to pressure sensor also finished fixing to circuit board simultaneously; Temperature pick up 7 is installed in the front portion of housing; temperature pick up 7 links to each other with circuit board 4 by the pipeline cable-through hole 6 of sidepiece; the leading cone 8 of temperature pick up 7 is installed in the front end of housing, and wherein, leading cone 8 mainly is that protection memory-type down-hole pressure thermometer is avoided damaging when going into the well.
Temperature pick up 7 mainly is made up of temperature element PT1000 RTD, stainless steel casing and sealer.RTD utilizes magnesia to be sealed in the stainless steel casing, and platinum resistance temperature sensor is to utilize metal platinum when variations in temperature, and characteristic that the self-resistance value also changes is thereupon measured temperature.Magnesian biography temp effect is better, can not produce a lot of time-delays so RTD is measured extraneous environment temperature.
Shown in the flow chart of Fig. 3 memory-type down-hole pressure thermometer, at first by Keyboard Control unit 110 be provided with memory-type down-hole pressure thermometer mode of operation, set functional parameters such as time in sampling interval, tool information, coefficient file.According to corresponding work mode, carry out function selecting then, thereby finish the task such as collection, transmission, storage of data.
During actual measurement, the power supply of memory-type down-hole pressure thermometer and ground electronic depth recorder is opened simultaneously, to guarantee the synchronous of time, the data that memory-type down-hole pressure thermometer is measured correctly reflect the environmental aspect of down-hole actual grade.Memory-type down-hole pressure thermometer is connected with the down-hole hawser by the housing rear portion, and the degree of depth of hawser can read by ground electronic depth recorder.
At first carry out the collection of downhole data: the control hawser, memory-type down-hole pressure thermometer is arrived the down-hole down, gather the pressure and temperature data of subsurface environment, carry out data read then: after the downhole data collection is finished, again memory-type down-hole pressure thermometer is withdrawn into abovegroundly, the data in memory-type down-hole pressure thermometer and the ground electronic depth recorder all are delivered in the outside PC.Read the data in the PC, data in memory-type down-hole pressure thermometer and the ground electronic depth recorder were fitted by the time, the thermometric data of memory-type down-hole pressure just can be corresponding with the ambient condition at down-hole actual grade place like this, and obtaining with the degree of depth is the continuous down-hole pressure temperature curve of abscissa.By this curve, can prepare for other work.
Claims (5)
1, a kind of memory-type continuous measurement down-hole pressure and thermometer, it is characterized in that, comprise memory-type down-hole pressure thermometer and ground electronic depth recorder, wherein, memory-type down-hole pressure thermometer is used to gather the pressure and temperature of measuring point and store, and ground electronic depth recorder is used for writing down automatically the down-hole degree of depth of measuring point.
2, memory-type continuous measurement down-hole pressure according to claim 1 and thermometer, it is characterized in that, described memory-type down-hole pressure thermometer comprises temperature collect module, pressure acquisition module, A/D modular converter, clock module, main control module, memory module and power module, wherein
Temperature collect module is used to gather the temperature signal of measuring point and is transferred to the A/D modular converter;
The pressure acquisition module is used to gather the pressure signal of measuring point and is transferred to the A/D modular converter;
The A/D conversion module carries out temperature signal and the pressure signal that receives digital-to-analogue conversion and is transferred to main control module;
Clock module is used for providing clock signal to main control module;
Main control module is provided with the mode of operation of A/D modular converter, and with the temperature and pressure data be transferred to memory module after clock signal combines and store or read data in the memory module;
Memory module is used to store the data of main control module transmission;
Power module provides electric energy for each module.
3, memory-type continuous measurement down-hole pressure according to claim 1 and thermometer, it is characterized in that, described main control module has serial communication interface, and main control module temperature and pressure data that will receive or that read from memory module are transferred to outer PC by this serial communication interface.
4, memory-type continuous measurement down-hole pressure according to claim 1 and thermometer is characterized in that, also comprise power interface, and external power source provides electric energy by this power interface to each module.
5, memory-type continuous measurement down-hole pressure according to claim 1 and thermometer is characterized in that, described temperature collect module is a platinum resistance temperature sensor, and described pressure acquisition module is a pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100791234A CN1837576A (en) | 2006-04-29 | 2006-04-29 | Storage type downhole pressure and temperature continuous-measuring apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100791234A CN1837576A (en) | 2006-04-29 | 2006-04-29 | Storage type downhole pressure and temperature continuous-measuring apparatus |
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| CN1837576A true CN1837576A (en) | 2006-09-27 |
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| CNA2006100791234A Pending CN1837576A (en) | 2006-04-29 | 2006-04-29 | Storage type downhole pressure and temperature continuous-measuring apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569633A (en) * | 2015-12-21 | 2016-05-11 | 中国石油天然气集团公司 | Black box as well as method and system for monitoring downhole tool state and drilling condition |
| CN108007527A (en) * | 2017-11-23 | 2018-05-08 | 重庆多邦科技股份有限公司 | A kind of differential pressure water level measurement system |
-
2006
- 2006-04-29 CN CNA2006100791234A patent/CN1837576A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569633A (en) * | 2015-12-21 | 2016-05-11 | 中国石油天然气集团公司 | Black box as well as method and system for monitoring downhole tool state and drilling condition |
| CN105569633B (en) * | 2015-12-21 | 2019-03-12 | 中国石油天然气集团公司 | The monitoring method and system of black box, downhole tool state and drilling condition |
| CN108007527A (en) * | 2017-11-23 | 2018-05-08 | 重庆多邦科技股份有限公司 | A kind of differential pressure water level measurement system |
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