Wireless duplex communication underground wireless flow control valve tool and system

Abstract

The invention relates to a wireless duplex communication underground wireless flow control system and control method. Oil layers are isolated through packers, a wireless duplex communication underground wireless flow control device is mounted between adjacent packers, the wireless duplex communication underground wireless flow control device achieves remote intelligent remote sensing and remote control with an underground remote metering / remote control system through pressure pulse transmission, according to the wireless duplex communication underground wireless flow control system, a flow control device is used for interfering production or pumping-in flowing through the artificial intelligence manner, a signal based on fluid pressure is transmitted, condition changes related with production or pumping flowing are identified on a wellhead and underground, according to condition changes, a flow control device is operated, through adjusting of the opening degree of a valve in a pipe flow in an underground protection oil pipe, a wireless coding signal is sent in an oil well or gas well, mounting, retrieval and maintaining are easy, and operation risks and production cost are reduced.

Description

technical field [0001] The invention relates to an oil drilling and production downhole tool, in particular to a downhole wireless flow control valve tool with wireless duplex communication and its system. Background technique [0002] To optimize recovery, the petroleum industry relies on data collected from wells and reservoirs. This data forms the basis for nearly all decisions in field development and operations, including the location of new wells, maintenance planning and production allocation / control. Given the need for data, many wells are equipped with permanent downhole instruments such as pressure, flow and temperature monitoring devices. [0003] Due to the generally harsh wellbore environment, permanent instruments have a limited service life and often fail. This failure results in limited information from the reservoir and limited ability to control wellbore fluids. This will seriously affect the understanding and modeling of the reservoir and reduce the rec...

AI Technical Summary

Problems solved by technology

[0008] Temporary monitoring systems for steel wire or cable operations require not only downhole equipment and tools, but also special equipment and wellhead tools operated by operators. Approximate production tests or pump injection tests can only be performed in a certain period of time. This kind of temporary operation has high cost and occupies the tubing channel. The test data cannot truly reflect all changes in well production. It is an approximate monitoring method

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