Underwater wireless communication circuit for oil-gas well

Abstract

The invention discloses an underwater wireless communication circuit for an oil-gas well. The underwater wireless communication circuit comprises an ultrasonic transducer, a single chip microcomputer,a sending circuit and a receiving circuit; the ground sends an electrical signal instruction to the single chip microcomputer in an intelligent telemetry device through a cable; the single chip microcomputer sends an electrical signal into the sending circuit of the intelligent telemetry device; the sending circuit converts a low-voltage signal to a high-voltage signal and sends the high-voltagesignal to the ultrasonic transducer; the ultrasonic transducer processes the high-voltage signal into an electromagnetic wave signal with a high-voltage characteristic; and the ultrasonic transducer sends the electromagnetic wave signal to the receiving circuit in a gun head master control device. Wireless communication, in an oil and water mixture, between the intelligent telemetry device and thegun head master control device is achieved through ultrasonic waves, internal and external pressure balance in a sensor adopted for the ultrasonic waves is achieved through a high-temperature-resistant piezoelectric ceramic piece and a rubber case structure with an inner cavity filled with silicone oil, and thus the purpose of high temperature resistance and high pressure resistance of the sensoris achieved.

Description

technical field [0001] The invention relates to the field of oilfield exploitation, in particular to an underwater wireless communication circuit for oil and gas wells. Background technique [0002] At present, most of my country's oil fields are in the middle and late stage of oil well exploitation, and the problems of remaining oil and thin-layer oil that are difficult to extract with conventional techniques are gradually emerging. In order to solve the above problems, various new perforation technologies have emerged in recent years, such as azimuth perforation, ultra-deep penetration perforation, compound perforation, etc. These perforation methods can improve the perforation effect to a certain extent. In order to meet the market demand, our company has developed a series of perforating devices with fixed orientation, fixed orientation and fixed shooting angle, and took the lead in developing an integrated fixed shooting angle and fixed orientation perforator that can a...

AI Technical Summary

Problems solved by technology

At present, the orientation accuracy of this technology is within ±10°, and when it is used in wells with a well deviation of less than 20°, an external orientation structure must be used to adjust the gun string orientation by rotating the string at the wellhead, which is labor-intensive. Larger and complex to operate

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