Intelligent balanced downhole production control valve

Abstract

The invention provides an intelligent balanced downhole production control valve capable of realizing balanced layer mining in an oil well. The intelligent balanced downhole production control valve comprises a rechargeable power supply system, a data acquisition recording system, a CPU (central processing unit) centralized management system and a traffic control system. The above systems are arranged between a central pipe and an outer cylinder jacket and are connected through a connecting piece, and an upper joint and a lower joint are respectively arranged at two ends of the central pipe and are in serial connection with an oil pipe. The intelligent balanced downhole production control valve is used in a production string for layer mining, real-time monitoring, intelligent controlling and artificial controlling on production parameters of the oil well are completed between the production string and a controlling device through the two-way radio frequency identification technology, and balanced mining of oil deposit is realized.

Description

technical field [0001] The invention relates to an underground production tool for oil and gas field development, in particular to an intelligent downhole balanced production control valve, which can realize balanced layered production in an oil well. Background technique [0002] In recent years, due to years of oilfield development, the comprehensive water content of formations has increased year by year, the oil-water relationship has become more complex, interlayer interference is serious, interlayer production is unbalanced, and heterogeneity is serious, resulting in coning or ridges of bottom water and gas caps. This will cause the wellbore to see water and gas prematurely, resulting in unbalanced production of oil wells, reduced oil production or shutdown of oil wells, seriously affecting oil recovery and development benefits. Therefore, mastering the intuitive dynamic production data of oil wells is the basic requirement for water control and oil stabilization in oil...

AI Technical Summary

Problems solved by technology

At present, the monitoring and regulation of downhole parameters at home and abroad mainly use the cable to connect with the downhole parameter control valve to connect the tubing string and pump down into the well, and connect to the wellhead, and collect the production parameters of oil and gas layers through the connection between the ground control system and the cable , storage, regulation, the downhole parameter control valve has no data processor, automatic adjustment, data storage and other functions, this method has the problems of complex construction, long cycle and high cost, and friction and collision between the cable and the oil well casing often occur The cable breaks and the control fails. Therefore, the monitoring and control of downhole dynamic production data is the bottleneck problem in the production of oil and gas wells at present.

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