Intelligent drilling tool drilling wired data transmitting system

Abstract

The invention relates to an intelligent drilling tool drilling wired data transmission system, which consists of a cable rotary joint, a signal cable, a control host, an alarm, an intelligent drilling tool, a drilling and geological parameter detector, a cable detector, and a serial port communication module. The composition solves the problem of difficult downhole data acquisition and transmission that has plagued the drilling industry for many years, and overcomes the problems of expensive wireless MWD equipment, low transmission rate, need to be equipped with expensive high-temperature batteries, short continuous working time, high requirements for drilling mud, and equipment Short maintenance period, complex construction process, large construction team and other disadvantages, after the wear resistance and corrosion resistance treatment of intelligent drilling tools, intelligent drilling tools can be reused, cable brings superior signal transmission performance, and can be equipped with more Advanced testing instruments can collect more drilling and geological parameters in real time, improve the accuracy and superiority of drilling well trajectory control, improve drilling exploration effects, and improve oil production efficiency.

Description

[0001] Technical field: [0002] The invention relates to the field of exploration instruments and equipment, in particular to an intelligent drilling tool drilling wired data transmission system. [0003] Background technique: [0004] In the process of geological drilling and oil drilling construction, it is necessary to know the working conditions of the drilling tool itself in real time, such as drilling parameter data such as well deviation and azimuth, and it is also necessary to measure geological parameter data such as lithology, oil content, and water content of the drilled formation through instruments. Through the analysis of the comprehensive data of the detection, the optimal drilling trajectory is controlled to save the exploration cost and improve the recovery rate of the oil well. At present, there are various forms of wireless measurement-while-drilling systems at home and abroad, mainly including drilling parameter MWD wireless transmission technology and elec...

AI Technical Summary

Problems solved by technology

At present, there are various forms of wireless measurement-while-drilling systems at home and abroad, mainly including drilling parameter MWD wireless transmission technology and electromagnetic wave wireless transmission technology. Mud pulses collect and transmit downhole parameters to the ground, and the data transmission rate is low. LWD wireless directional drilling technology collects and transmits geological parameters in real time while transmitting drilling parameters through drilling mud pulses. According to the current geological conditions of the drill bit, determine the next step Drilling borehole trajectory direction; electromagnetic wave wireless transmission technology is to transmit the parameters collected by downhole instruments to the ground by installing a wireless signal generating device in the downhole. The transmission rate is relatively high, but it is limited by the depth of the well, mud and geological conditions; , High mud pressure, fast flow rate, complex mud performance, MWD mud pulse wireless transmission equipment is complicated, expensive, severely worn, battery life is limited, the requirements for drilling mud and construction parameters are extremely high, and the technology is subject to many restrictions in the actual application process. A professional technical team is required for construction and maintenance management. The cost of drilling is too high. Horizontal wells and highly deviated wells have applications, so it is difficult to popularize and popularize. However, electromagnetic wave wireless transmission technology is affected by well depth, mud performance and geological environment, and it is difficult to be widely used. Scale promotion and application

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