Drilling energy-saving speed-up navigation optimization method

Abstract

The invention provides a drilling energy-saving acceleration navigation optimizing method. By means of the method, the data, collected in the drilling process, including the mechanical drilling speed, the drilling pressure and the drill bit rotating speed are processed in real time, and the function relation between the mechanical drilling speed and the drilling pressure and the function relation between the mechanical drilling speed and the drill bit rotating speed are obtained; meanwhile the constraints of drilling machine top drive rated torque on drilling parameter adjustment, the influences of the borehole cleaning capacity on the mechanical drilling speed and the influences of the maximum torque capable of being borne by a drill stem on the drilling pressure are taken into consideration, and then the function relation between the torque and the drill bit rotating speed and a safety window between the drilling pressure and the drill bit rotating speed are obtained; the drill bit energy utilization rate is taken into consideration, and finally the optimal combination of the drilling pressure and the drill bit rotating speed is obtained. By means of the method, the effect of increasing the mechanical rotating speed can be achieved while the energy consumption is lowered.

Description

technical field [0001] The invention relates to drilling optimization technology, in particular to a navigation optimization method for energy-saving and speed-up of drilling. Background technique [0002] Speed-up is the eternal theme of drilling engineering. With the increasing demand for oil and gas resources and the drilling targets moving towards deeper and more complex oil and gas reservoirs and unconventional reservoirs, it is becoming more and more difficult to speed up drilling. The main reasons are drilling operations, formations encountered The variability of the drilling process and the unknown real-time drilling situation make the drilling process affected by the operator's experience and misjudgment. Domestic oil and gas fields are facing the dual challenges of technology and cost in terms of overall drilling speed increase, and there is an urgent need for a new drilling speed increase mode that is simple to use, economical, reliable and highly applicable. [...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an energy-saving and speed-up navigation optimization method for drilling to solve the problem that the existing technology cannot provide solutions for operators in real time and quickly, which leads to the slowdown of the mechanical penetration rate and the waste of energy during the drilling process, resulting in serious drill bit wear.

Images