CN103149867A

CN103149867A - Remote oil well monitoring system

Info

Publication number: CN103149867A
Application number: CN2011103448815A
Authority: CN
Inventors: 杨际荣
Original assignee: ZHENJIANG HUAYANG INFORMATION TECHNOLOGY CO LTD
Current assignee: ZHENJIANG HUAYANG INFORMATION TECHNOLOGY CO LTD
Priority date: 2011-11-01
Filing date: 2011-11-01
Publication date: 2013-06-12

Abstract

The invention discloses a remote oil well monitoring system. Namely, an oil well automatic monitoring and measurement technique is an intelligentized monitoring system which is integrated with the techniques of a computer, a sensor, network communication and the like. Therefore, the oil well automatic monitoring and measurement technique can achieve a continuous monitoring of oil-pumping well working conditions, a timely alarming under unusual service conditions, and a built parameter management database and network. Field experiments indicate that the system is high in intelligent control degree, capable of improving a well-opening time rate of an oil-pumping well and a normal rate of the work conditions, reliable and steady, capable of reducing the number of workers and capable of saving production expense. An informationized and scientific oil well management mode is shaped initially.

Description

The long-range oil-well monitoring system

Technical field

The present invention relates to the long-range oil-well monitoring system, oil well monitoring automatically is the Intellectualized monitoring system that integrates the technology such as computing machine, sensor, network communication with measurement technology, can realize working condition of pumping well continuous monitoring, unusual service condition and alarm, parameter management data base system and the networking way of thinking.

Background technology

The oil field great majority adopt pumping production in China, and there are a plurality of production stations an oil recovery factory, and a production station is comprised of many oil production machine again, and the crude oil of oil production machine extraction focuses on production station, are sent to oil pipeline at production station through the pressurization of heating.Oil pumper is dispersed in around production station, and is distant, several kms at least, and tens kms at most, the workman patrols well and just exists accident condition and can't reach alarm and control, the problem such as accident can not in time be processed, data acquisition is untimely.For above-mentioned situation, with the oil field joint study one computer system, oil temperature and cutout situation to every mouthful of well of production station are monitored, find as early as possible when breaking down and handle it, make managerial personnel needn't go deep into the scene and just can obtain exactly at any time required data, and carry out statistical study, improve productivity effect and management level.

Summary of the invention

Based on the problems referred to above, invention long-range oil-well monitoring system hereby. system obtains and is arranged on the data such as load and displacement transducer on pumping unit of well by data acquisition unit, sends it to data process points (central control room (CCR)).The data that the data process points transmits the collection point by monitoring and oil well measurement analytic system software, show in real time monitoring merit figure, analyze oil well condition, calculate oilwell produced fluid amount.

Specific implementation method

This monitoring system can detect automatically to 32 mouthfuls of oil well oil transportation pipeline crude oil flow situations, and major function is as follows:

1) 32 mouthfuls of oil well oil temperatures are monitored automatically, and can touring demonstration or fix and show each line state;

2) can regularly or manually print whole oil well oil temperatures;

3) when a certain oil pipeline cutout 150S is above, confirm this oil well cutout, record this pound sign and cutout time, send warning;

4) after confirming that a certain oil pipeline recovers again normally, this pound sign of automatic printing and release time;

5) touring demonstration fault pound sign, show pilot lamp working properly during non-fault;

6) have year, month, day, hour, min, second real-time calendar, and can calibrate;

7) according to the oil well cutout cumulative time, can indirectly estimate oil offtake.

Its hardware components be this monitoring system take AT89C52 CPU as main frame, adopt the CMOS integrated circuit, reduced power consumption, improved the antijamming capability of system, strengthen stability.Hardware forms take AT89C52 CPU as core, mainly is comprised of code translator, bus driver, program storage, data-carrier store, keyboard.Wherein, S1-S8 is respectively day/second, month/minute, year/time, selection, noise reduction, rewrite, fix, print totally eight touch key-presss, PS1-PS4 is port address decoding.PS1 is data acquisition simulation passage switching port address and keyboard reading address, and PS2 is the switching value port address, and PS3 is the LPT address, and PS4 is real time clock DS12887 port address.74HC245 is used for BDB Bi-directional Data Bus and drives, and drives and antijamming capability to improve, and data-carrier store adopts 62256, and memory capacity is 32K.

Whether oil well stops and is detected by sensor, when oil well stops, sensor output one normal opened contact signal, when oil well is working properly, sensor output one normally closed contact signal, this signal is the with no pressure contact, reads the contact switch state by data selector 74HC253, and judges by computing machine whether oil well stops.System adopts the Cu50 thermal resistance temperature sensor to measure oil temperature, and 32 temperature sensors are together in series, and adopts the constant flow source measuring metering method.When measuring temperature, from the 1st temperature spot to the 32 temperature spot point-to-point measurements.The voltage of obtaining from the Cu50 sensor only has several volts at zero point, before delivering to A/D converter, also will carry out linearity and amplify processing, becomes the 0-5VDC signal, because measuring accuracy is less demanding, adopts 12 A/D converter ADS7822 to carry out data acquisition here.For avoiding timer to interrupt the frequent CPU of interference work, in case and power down, clock stops timing immediately, the clip of real-time clock DS12887 that employing Dallas company produces, this chip not only provides 14B clock and control module and 114B user RAM, and once calibrating just self-clocking, rechargeable battery powered by 3 joint Ni-Cd during power failure.This clock chip has μ P interface, can be used as the peripheral hardware of CPU, and sheet is elected PS4 as.

The following concrete module of this system software its module of part is as follows:

1) system initialization routine: complete the initialization to CPU, tag unit, clock/calendar etc.;

2) keyboard scan and handling procedure: complete the scan process to eight function key S1-S8;

3) switching value program: by the detection of switch amount K0-K31, judgement oil well working condition, and make corresponding indication;

4) data acquisition program: regularly 32 road binders well conduit temperature are detected, the voltage signal that temperature is corresponding becomes the digital signal between 000H-3FFH;

5) fault alarm program: when the cutout fault occurring, realize sound and light alarm, press cancel key, sound is removed;

6) display routine: according to the state of existing show label, send LED to show the content of display buffer, simultaneously the illuminating state pilot lamp.

7) print routine: according to different situations, complete different printings.Before data are sent to printer, first enable printer power supply, time-delay 5S, after last data was sent to printer, time-delay 5S disconnected printer power supply, guaranteed that printer normally completes printing;

Calendar clock calibration procedure: realize calibration to calendar clock, initialization clock unit by function key.

Claims

1. long-range oil-well monitoring system: this system obtains and is arranged on the data such as load and displacement transducer on pumping unit of well by data acquisition unit, sends it to the data process points.

2. according to claim 1 long-range oil-well monitoring system, this system is given into by its hardware and software section; Monitoring system adopts the CMOS integrated circuit take AT89C52CPU as main frame, has reduced power consumption, has improved the antijamming capability of system, strengthens stability.Hardware forms take AT89C52CPU as core, mainly is comprised of code translator, bus driver, program storage, data-carrier store, keyboard.