Evaluation data processing method and system based on underground engineering parameters

Abstract

The invention discloses an evaluation data processing method and system based on underground engineering parameters, and relates to the technical field of oil and gas exploitation. The method comprises the steps that characteristic parameters such as bit pressure, rotating speed, torque, displacement and drill bit vibration in different time periods are obtained in real time through a near-drilling sensor and sent to a control center to be processed, the processed parameters are stored in a register, and an evaluation model is established through an extreme value search algorithm for evaluation analysis; a historical data scatter diagram is established through the evaluation model and comprehensive drilling experience, and underground working conditions are judged and fed back to an underground drill bit. According to the method, parameters such as the bit pressure, the rotating speed, the torque, the displacement and drill bit vibration in the drilling process can be read in real time, the evaluation model is established to evaluate and analyze the underground working condition, the hysteretic nature of the above-well evaluation analysis amount is overcome, the drilling safety and the 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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