Intelligent remote control system for coal-bed gas well drainage and mining device and control method thereof

Abstract

The invention discloses an intelligent remote control system for a coal-bed gas well drainage and mining device. The intelligent remote control system comprises coal-bed gas well parameter monitoringequipment, a data collecting system, an intelligent drainage and mining control system and a remote monitoring and controlling system. The coal-bed gas well parameter monitoring equipment mainly comprises a gas flowmeter, a liquid flowmeter, a downhole flow pressure sensor, a casing pressure sensor, a temperature sensor, a liquid level testing device and a frequency converter. The invention further discloses a remote control method of the intelligent remote control system for the coal-bed gas well drainage and mining device. According to the intelligent remote control system for the coal-bed gas well drainage and mining device and the remote control method thereof, intelligent drainage and mining of different types of coal-bed gas wells are achieved according to the drainage and mining features of different geology types of coal-bed gas wells and of different stages; remote real-time monitoring and controlling of drainage and mining of coal-bed gas wells are achieved, and a remote usercan check, query and store detailed real-time data and historical data in a remote mode; and the user can conduct parameter setting and instruction control comprising on-site operation and remote control on the frequency converter.

Description

Technical field [0001] The invention belongs to the technical field of coalbed methane development, and specifically relates to an intelligent remote control system and a control method for a coalbed methane well drainage device. Background technique [0002] Reasonable drainage intensity is the key to ensuring stable and high production of CBM wells. If the drainage intensity is too high, it will cause velocity sensitivity and stress sensitivity, causing serious damage to the reservoir, resulting in low production; if the drainage intensity is too low, it will increase development costs. [0003] CBM drainage is based on the principle of not harming coal reservoirs. Traditional CBM well drainage selects appropriate drainage work based on changes in CBM well parameters such as CBM well gas production, water production, casing pressure, fluid level and bottom pressure. system. However, in the process of CBM development in my country, manual adjustment and manual parameter adjustme...

AI Technical Summary

Problems solved by technology

The following problems exist. Traditional drainage equipment requires professionals to carry out on-site adjustment and control. The work intensity is high, the efficiency is low, and the production cost is high. The locations of coalbed methane wells are scattered and the wells are far away. The cycle is long, the cost is high, and the accuracy is poor, which cannot meet the production needs; it is difficult for the drainage personnel to realize the real-time recording and monitoring of the drainage parameters of the coalbed methane well. layer causing serious injury and increasing equipment repair costs

Images