Research on the Rate of Penetration Prediction Method Based on Stacking Ensemble Learning

Table 1

Classification of ROP corresponding to different bit sizes in an oil field in Xinjiang working area.

Bit diameter/mm	Low ROP range/(m/h)	Medium ROP range/(m/h)	High ROP range/(m/h)
149.2	<1.5	1.5-2.5	>2.5
215.9	<4	4-6	>6
311.2	<10	10-15	>15
444.5	<30	30-40	>40