Improvement method of water distributor and intelligent water distributor

Abstract

The invention discloses an improvement method of a water distributor and an intelligent water distributor. The water distributor comprises an upper joint, a water distribution shell and a lower joint from top to bottom. According to the improvement method, the size of threaded interfaces of upper and lower joints of an existing water distributor and the size of a central channel are not changed, and only a water distribution shell between the upper and lower joints is improved, so that the seamless interchange with the existing water distributor is realized; a water injection pressure detection device, a formation pressure detection device, a flow detection device, a water injection amount adjustment device, a temperature sensor and a circuit board are integrated in the water distribution shell; and parameter information measured by the water injection pressure detection device, the formation pressure detection device, the flow detection device and the temperature sensor is converted into digital signals by the circuit board, the circuit board is connected to a computer on the ground through an annular space between an oil tube and sleeve by a cable, and the computer controls an underwater water injection amount adjustment device to adjust the flow according to an injection allocation requirement, so as to realize the injection allocation requirement.

Description

technical field [0001] The invention relates to an improvement method of a water distributor and an intelligent water distributor, belonging to the technical field of downhole instruments. Background technique [0002] After the oil field is exploited in the middle and later stages, the method of water injection or polymer flooding into the formation is generally used to ensure the crude oil production. Water injection wells are generally divided into multiple layers, and precise control of water injection in each layer is the key to ensuring output. At present, the oil field mainly uses a direct-reading seal inspection device to run into the well to check the seal of each layer, and a direct-reading water volume adjustment device to run into the well to adjust the water injection volume of each layer; the direct-reading instrument is used to measure flow, temperature, water injection pressure and formation pressure. At present, the water distributor in the existing tec...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide an improved method of a water distributor and an intelligent water distributor, which can monitor downhole flow, temperature, water injection pressure and formation pressure in real time and for a long time, and realize automatic flow control according to ground control instructions, thereby alleviating the need for measurement. Insufficient adjustment force, and solve problems such as low efficiency of measurement and adjustment, high labor intensity, wellbore blockage and other problems

Images