Layered exploitation production string controlled in bidirectional wireless identification mode and regulation device

Abstract

The invention relates to a layered exploitation production string controlled in a bidirectional wireless identification mode and a regulation device, and balanced layered exploitation in an oil well can be realized. The production string comprises a releasing tool, a packer and a centralizer which are connected in series through oil pipes. The production string is released under the well through the releasing tool, and underground intelligent balance production control valves are connected below the packer and the centralizer through an oil pipe string. The regulation device used in cooperation with the production string comprises an adapter, a wireless identification electromagnetic induction charger and a wireless radio frequency identification docking adapter, a cable is sequentially connected with the adapter, the wireless identification electromagnetic induction charger and the wireless radio frequency identification docking adapter, and the regulation device is in butt joint with the underground intelligent balance production control valves in the mode that the cable moves into the layered exploitation production string. The bidirectional wireless radio frequency identification technology is adopted between the layered exploitation production string and the regulation device, and real-time monitoring, intelligent regulation and manual regulation of oil well production parameters can be completed.

Description

technical field [0001] The invention relates to an underground production pipe string for oil and gas field development, in particular to a two-way wireless identification-controlled layered production pipe string and a control device, which can realize balanced layered section production in oil wells. 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 requir...

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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