CN202648717U - Oilfield oil flow measuring system based on TDC-GP2 - Google Patents
Oilfield oil flow measuring system based on TDC-GP2 Download PDFInfo
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- CN202648717U CN202648717U CN 201220337120 CN201220337120U CN202648717U CN 202648717 U CN202648717 U CN 202648717U CN 201220337120 CN201220337120 CN 201220337120 CN 201220337120 U CN201220337120 U CN 201220337120U CN 202648717 U CN202648717 U CN 202648717U
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Abstract
The utility model discloses an oilfield oil flow measuring system based on TDC-GP2. The oilfield oil flow measuring system is characterized by mainly comprising a power circuit, a time-digital conversion chip, a single chip microcomputer, a memorizer, a signal processing circuit and an analog switching circuit, the time-digital conversion chip, the single chip microcomputer, the memorizer, the signal processing circuit and the analog switching circuit are connected with the power circuit, the time-digital conversion chip, the single chip microcomputer, the signal processing circuit and the analog switching circuit are mutually connected through a bus, and the analog switching circuit is further connected with an ultrasonic sensor 1 and an ultrasonic sensor 2. The oilfield oil flow measuring system has fine measuring effects, and is high in measuring accuracy and stability.
Description
Technical field
The utility model relates to the oil monitoring, specifically refers to the oil field petroleum streams system for measuring quantity based on TDC-GP2.
Background technology
Along with the fast development of China's economy, increasing to the demand of oil, so the many oil fields of China multiple way of numerous and confused employing improves oil and gas production.For example: each elephant has all been set up the research institution of oneself, takes full advantage of the talent in oil field self and the advantage of fund, the instrument that development oil drilling, well logging are badly in need of.Many oil fields are the long oil field of recovery time of east and the Northeast particularly, oil well is carried out secondary recovery, to improve oil and gas production etc.And for the secondary recovery of oil well, be to be widely used now toward underground water-injection, and the higher a kind of method of efficient.The oil field is more and more higher to the requirement of water injection technology now, proposes again in recent years the laminated distributor under well water filling.To the monitoring of laminated distributor under well water injection parameter, more and more cause the attention of oil field relevant departments.Therefore be badly in need of now the instrument of laminated distributor under well water injection parameter monitoring, based on this present situation, this paper has designed one and has overlapped the circuit that detects flow, temperature.
The proposition of design philosophy: the flowmeter that uses on the oil field at present all is memory-type, and its kind is a lot, comprises suspended body flowmeter, electromagnetic flowmeter, turbo flow meter, excusing from death ripple flowmeter etc.Because the principle of design and physical construction is different, these flowmeters have some shortcomings of self, and its precision is not very high, comparatively speaking, ultrasonic flow is in respect of more significant advantage, and it has higher measuring accuracy, generally between 2% ~ 5%, and the precision of other flowmeters is generally all on 5%, and the spoilage of physical construction is also high a lot of than ultrasonic flow meter.In addition, the now application of integrated chip is more and more extensive, can say the every field that has been penetrated into industrial and agricultural production.Along with the development of material industry and integrated circuit, the cost performance of single-chip microcomputer is more and more higher, selects MSP430F2274 can say not only economy but also material benefit as the process chip of data on flows.2274 processing speed and data processing format satisfy the technical requirement of parameter measurement fully.To design selected GP2 be the measurement chip of ultrasonic wave principle flowmeter special use, and the inner structure of chip just is based on the principle design of ultrasound wave time difference method measuring flow, and this chip has high measuring accuracy, thereby can guarantee the precision of final measurement data.These two kinds of chip application to circuit, add a small amount of peripheral circuit, just can realize the monitoring function of flow.
The utility model content
The purpose of this utility model is to provide has good measurement effect, than high measurement accuracy and stability, based on the oil field petroleum streams system for measuring quantity of TDC-GP2.
Implementation of the present utility model is as follows: based on the oil field petroleum streams system for measuring quantity of TDC-GP2, mainly by power circuit and is connected with power circuit, time figure transforms chip, single-chip microcomputer, storer, signal processing circuit, analog switching circuit and consists of, described time figure conversion chip, single-chip microcomputer, signal processing circuit, analog switching circuit all pass through bus interconnection; Described analog switching circuit also is connected with ultrasonic sensor 1 and ultrasonic sensor 2.
Described bus also is connected with the data readback circuit, and described data readback circuit is connected with single-chip microcomputer by bus, and described data readback circuit comprises the MAX3232 chip, and described MAX3232 chip is also established and is connected with the RS232 interface.
Described time figure transforms chip and also is connected with temperature sensor.
It is the single-chip microcomputer of MSP430F2274 that described single-chip microcomputer adopts model.
The model that described time figure transforms chip is the time figure conversion chip of TDC-GP2.
MSP430F2274 is 16 higher singlechip chips of a high-performance low-power-consumption, sexual valence that the TI corporation in 2006 is released, and MSP430F2274 has inherited traditional characteristics of TI single-chip microcomputer: super low-power consumption, volume are less, performance better, more easily use.16 reduced instruction set computer CPU of MSP430F2274 inside are passed through address bus and the data bus of Feng o neumann architecture, be connected to peripherals and programmable clock system, in addition, owing to having an advanced person's CPU to cooperate the analog-and digital-peripherals with standard package storage impression, so that MSP430 can be for the treatment of mixed signal.Have numerous internal resources, thereby the structure that can be system provides very large facility.TDC-GP2 is that German ACAM company is that the new time figure of another money of releasing behind the TDC-GP1 transforms chip, its high precision and compact package make it become the desirable device of low-cost industrial application design, TDC-GP2 has High speed pulse generator, stop signal enables, the function such as temperature survey and clock control, these special functional modules are so that it is particularly suitable for the application of ultrasonic flow and calorimetry aspect.It has two measurement ranges, can make the measurement of time precision reach the ps level.In order to describe respectively TDC-GP2 referred to as GP2, MSP430F2274 is referred to as 2274.
Whole system designs peripheral circuit around MSP430F2274 and GP2.2274 are mainly used to do system's control and data processing, and it is poor that GP2 is mainly used to acquisition time, also is the core of whole system data acquisition.This circuit is that system is designed to memory-type, namely first whole system is installed to be put on the skeleton in the measured well, and measurement data temporarily is stored in the storer, waits to measure and again system improving is carried out data readback to ground by the data readback circuit after finishing.The measurement of GP2 time parameter of realization and flow, temperature correlation under 2274 control in measuring process, and be stored in the GP2 internal register, process accordingly and store after reading by 2274.After instrument is thus lifted to ground, system after the order that receives computing machine with in the storer data communication device cross the MAX3232 chip and send computing machine to and process.After system powered on, the program that is stored among the ROM of 2274 inside was directed into 2274 internal operations.When 2274 finish initialization to self and GP2 and arrange after, at first give definite signal of analog switching circuit, make it to be in a definite state, so just can determine the reiving/transmitting state of two ultrasonic sensors, namely, the reiving/transmitting state of ultrasonic sensor 1 and ultrasonic sensor 2 is namely determined to measure downstream or against the current measurement.2274 send order to GP2 afterwards, the FIRE pin by GP2 transmits, and when excitation being provided for ultrasonic sensor 1 and ultrasonic sensor 2, provides the START signal to GP2 simultaneously; And the signal that ultrasonic sensor 1 and ultrasonic sensor 2 receive is delivered to GP2 as the STOP signal after through the two poles of the earth amplifying circuit and filtering circuit, waveform shaping circuit, and GP2 just can calculate the travel-time of ultrasound wave in fluid like this.Then 2274 channel switch states that change analog switches namely change the reiving/transmitting state of ultrasonic sensor 1 and ultrasonic sensor 2, carry out one-shot measurement again, can obtain again a travel-time.According to these two time parameters, utilize time difference method principle formula just can calculate the flow of fluid in the tubing string.2274 result of calculations deposit in the outside storer.After measurement is finished, circuit is mentioned ground, utilize data line to be connected with PC, the data that record are sent to PC carry out the water injection curve drafting, and make further zonal injection profile analysis.
Because the measurement of whole system is carried out in the down-hole, and data are not uploaded in measuring process.The post-processed of data and the drafting of water injection curve are after measurement is finished, data readback to be carried out later on to PC.So the playback to data also must be taken into account.Therefore the spy increases the data readback circuit.
The utility model has the advantage of: native system possesses good measurement effect, and the measuring accuracy of system and stability have all reached designing requirement in advance.Thereby proved absolutely the feasibility of this system, exploitation applied for it, the commercialization instrument provides necessary foundation.In addition, this cover system can also be applied to other industrial circle, can make the control measuring flow equipment foremost of industrial automation.The design of this metering circuit system is for the certain reference value of being designed with of other flowrate measuring tool.
Description of drawings
Fig. 1 is the utility model system architecture schematic diagram.
Embodiment
Embodiment one
As shown in Figure 1.
Oil field petroleum streams system for measuring quantity based on TDC-GP2, mainly by power circuit and is connected with power circuit, time figure transforms chip, single-chip microcomputer, storer, signal processing circuit, analog switching circuit and consists of, described time figure conversion chip, single-chip microcomputer, signal processing circuit, analog switching circuit all pass through bus interconnection; Described analog switching circuit also is connected with ultrasonic sensor 1 and ultrasonic sensor 2.
Described bus also is connected with the data readback circuit, and described data readback circuit is connected with single-chip microcomputer by bus, and described data readback circuit comprises the MAX3232 chip, and described MAX3232 chip is also established and is connected with the RS232 interface.
Described time figure transforms chip and also is connected with temperature sensor.
It is the single-chip microcomputer of MSP430F2274 that described single-chip microcomputer adopts model.
The model that described time figure transforms chip is the time figure conversion chip of TDC-GP2.
MSP430F2274 is 16 higher singlechip chips of a high-performance low-power-consumption, sexual valence that the TI corporation in 2006 is released, and MSP430F2274 has inherited traditional characteristics of TI single-chip microcomputer: super low-power consumption, volume are less, performance better, more easily use.16 reduced instruction set computer CPU of MSP430F2274 inside are passed through address bus and the data bus of Feng o neumann architecture, be connected to peripherals and programmable clock system, in addition, owing to having an advanced person's CPU to cooperate the analog-and digital-peripherals with standard package storage impression, so that MSP430 can be for the treatment of mixed signal.Have numerous internal resources, thereby the structure that can be system provides very large facility.TDC-GP2 is that German ACAM company is that the new time figure of another money of releasing behind the TDC-GP1 transforms chip, its high precision and compact package make it become the desirable device of low-cost industrial application design, TDC-GP2 has High speed pulse generator, stop signal enables, the function such as temperature survey and clock control, these special functional modules are so that it is particularly suitable for the application of ultrasonic flow and calorimetry aspect.It has two measurement ranges, can make the measurement of time precision reach the ps level.In order to describe respectively TDC-GP2 referred to as GP2, MSP430F2274 is referred to as 2274.
Whole system designs peripheral circuit around MSP430F2274 and GP2.2274 are mainly used to do system's control and data processing, and it is poor that GP2 is mainly used to acquisition time, also is the core of whole system data acquisition.This circuit is that system is designed to memory-type, namely first whole system is installed to be put on the skeleton in the measured well, and measurement data temporarily is stored in the storer, waits to measure and again system improving is carried out data readback to ground by the data readback circuit after finishing.The measurement of GP2 time parameter of realization and flow, temperature correlation under 2274 control in measuring process, and be stored in the GP2 internal register, process accordingly and store after reading by 2274.After instrument is thus lifted to ground, system after the order that receives computing machine with in the storer data communication device cross the MAX3232 chip and send computing machine to and process.After system powered on, the program that is stored among the ROM of 2274 inside was directed into 2274 internal operations.When 2274 finish initialization to self and GP2 and arrange after, at first give definite signal of analog switching circuit, make it to be in a definite state, so just can determine the reiving/transmitting state of two ultrasonic sensors, namely, the reiving/transmitting state of ultrasonic sensor 1 and ultrasonic sensor 2 is namely determined to measure downstream or against the current measurement.2274 send order to GP2 afterwards, the FIRE pin by GP2 transmits, and when excitation being provided for ultrasonic sensor 1 and ultrasonic sensor 2, provides the START signal to GP2 simultaneously; And the signal that ultrasonic sensor 1 and ultrasonic sensor 2 receive is delivered to GP2 as the STOP signal after through the two poles of the earth amplifying circuit and filtering circuit, waveform shaping circuit, and GP2 just can calculate the travel-time of ultrasound wave in fluid like this.Then 2274 channel switch states that change analog switches namely change the reiving/transmitting state of ultrasonic sensor 1 and ultrasonic sensor 2, carry out one-shot measurement again, can obtain again a travel-time.According to these two time parameters, utilize time difference method principle formula just can calculate the flow of fluid in the tubing string.2274 result of calculations deposit in the outside storer.After measurement is finished, circuit is mentioned ground, utilize data line to be connected with PC, the data that record are sent to PC carry out the water injection curve drafting, and make further zonal injection profile analysis.
Because the measurement of whole system is carried out in the down-hole, and data are not uploaded in measuring process.The post-processed of data and the drafting of water injection curve are after measurement is finished, data readback to be carried out later on to PC.So the playback to data also must be taken into account.Therefore the spy increases the data readback circuit.
As mentioned above, then can well realize the utility model.
Claims (5)
1. based on the oil field petroleum streams system for measuring quantity of TDC-GP2, it is characterized in that: mainly by power circuit and is connected with power circuit, time figure transforms chip, single-chip microcomputer, storer, signal processing circuit, analog switching circuit and consists of, described time figure conversion chip, single-chip microcomputer, signal processing circuit, analog switching circuit all pass through bus interconnection; Described analog switching circuit also is connected with ultrasonic sensor 1 and ultrasonic sensor 2.
2. the oil field petroleum streams system for measuring quantity based on TDC-GP2 according to claim 1, it is characterized in that: described bus also is connected with the data readback circuit, described data readback circuit is connected with single-chip microcomputer by bus, described data readback circuit comprises the MAX3232 chip, and described MAX3232 chip is also established and is connected with the RS232 interface.
3. the oil field petroleum streams system for measuring quantity based on TDC-GP2 according to claim 1 and 2 is characterized in that: described time figure transforms chip and also is connected with temperature sensor.
4. based on the oil field petroleum streams system for measuring quantity based on TDC-GP2 according to claim 3, it is characterized in that: it is the single-chip microcomputer of MSP430F2274 that described single-chip microcomputer adopts model.
5. based on the oil field petroleum streams system for measuring quantity based on TDC-GP2 according to claim 3, it is characterized in that: the model that described time figure transforms chip is the time figure conversion chip of TDC-GP2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220337120 CN202648717U (en) | 2012-07-12 | 2012-07-12 | Oilfield oil flow measuring system based on TDC-GP2 |
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| CN 201220337120 CN202648717U (en) | 2012-07-12 | 2012-07-12 | Oilfield oil flow measuring system based on TDC-GP2 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353317A (en) * | 2013-06-17 | 2013-10-16 | 大连普林斯电子有限公司 | TDC-GP22-based ultra-large pipe diameter ultrasonic flowmeter and method for signal enhancement thereof |
| CN103471667A (en) * | 2013-06-17 | 2013-12-25 | 大连普林斯电子有限公司 | Large pipe size ultrasonic flowmeter on basis of TDC-GP22 (Time-to-Digital Conversion GP22) chip and signal enhancement method thereof |
| CN103542900A (en) * | 2012-07-12 | 2014-01-29 | 成都科盛石油科技有限公司 | Oil field petroleum flow measurement system based on TDC-GP2 |
| CN104880939A (en) * | 2014-02-28 | 2015-09-02 | 上海中核维思仪器仪表有限公司 | Gate circuit delay counter supersonic wave propagation time high-precision measuring method based on CPLD |
| CN110907001A (en) * | 2019-11-07 | 2020-03-24 | 西安康际石油科技有限公司 | On-line continuous weighing and flow measuring device for oil field |
-
2012
- 2012-07-12 CN CN 201220337120 patent/CN202648717U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542900A (en) * | 2012-07-12 | 2014-01-29 | 成都科盛石油科技有限公司 | Oil field petroleum flow measurement system based on TDC-GP2 |
| CN103353317A (en) * | 2013-06-17 | 2013-10-16 | 大连普林斯电子有限公司 | TDC-GP22-based ultra-large pipe diameter ultrasonic flowmeter and method for signal enhancement thereof |
| CN103471667A (en) * | 2013-06-17 | 2013-12-25 | 大连普林斯电子有限公司 | Large pipe size ultrasonic flowmeter on basis of TDC-GP22 (Time-to-Digital Conversion GP22) chip and signal enhancement method thereof |
| CN103353317B (en) * | 2013-06-17 | 2015-10-07 | 大连普林斯电子有限公司 | Based on ultra-large type caliber ultrasonic flow meter and the signal Enhancement Method thereof of TDC-GP22 |
| CN103471667B (en) * | 2013-06-17 | 2016-03-30 | 大连普林斯电子有限公司 | Based on large-scale caliber ultrasonic flow meter and the signal Enhancement Method thereof of TDC-GP22 |
| CN104880939A (en) * | 2014-02-28 | 2015-09-02 | 上海中核维思仪器仪表有限公司 | Gate circuit delay counter supersonic wave propagation time high-precision measuring method based on CPLD |
| CN110907001A (en) * | 2019-11-07 | 2020-03-24 | 西安康际石油科技有限公司 | On-line continuous weighing and flow measuring device for oil field |
| CN110907001B (en) * | 2019-11-07 | 2021-03-19 | 西安康际石油科技有限公司 | On-line continuous weighing and flow measuring device for oil field |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20130712 |