A method and system for processing evaluation data based on downhole engineering parameters

Abstract

The invention discloses a data processing method and system based on downhole engineering parameter evaluation, and relates to the technical field of oil and gas exploitation; comprising the steps of: using a near-drilling sensor to obtain real-time drilling pressure, rotational speed, torque, displacement, and drill bit vibration in different time periods characteristic parameters, and send them to the control center to process the parameters, store the processed parameters in the register and use the extreme value search algorithm to establish an evaluation model for evaluation and analysis, establish a historical data scatter diagram through the evaluation model and comprehensive drilling experience, and judge the underground work. and feed back to the downhole drill bit. The invention can establish an evaluation model to evaluate and analyze the downhole working conditions by reading parameters such as drilling pressure, rotational speed, torque, displacement and bit vibration in the drilling process in real time, overcomes the hysteresis of uphole evaluation and analysis, and improves drilling efficiency. The safety and drilling efficiency are improved, and the drilling cost is reduced.

Description

technical field [0001] The invention relates to the technical fields of petroleum engineering and natural gas exploitation, in particular to a method and system for real-time downhole engineering parameters based on big data. Background technique [0002] In recent years, a large number of new oil wells such as extended-reach wells, multi-lateral wells and re-drilling of original wells have appeared. The downhole working conditions have become more and more complicated, and the working environment of drilling tools is harsh. It is impossible to accurately know the working status of drill bits in real time. At present, most of the downhole working conditions are predicted by collecting ground data and using stored engineering parameter measurement methods, but there is a certain deviation between the ground collected parameters and the downhole actual engineering parameters, which will bring difficulties to the prediction and judgment of drilling conditions , and may even cau...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention provides an evaluation data processing method based on downhole engineering parameters to solve the problem of uphole evaluation hysteresis. Real-time judgment of the downhole working condition of the drill bit (6)

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