ENHANCEMENT OF PENETRATION RATE USING SELF-IRRITATION IRECTIONAL VIBRATION FLUIDS

A new self-irritating orientation jet nuzzles of organ pipe type designed according to the principle of self irritating fluids, the principle of hydraulic auxilinry rock breaking and the principle of cross flow on the bottom that work on the three r0ller bit elevated the capability of auxiliary effect of rock breaking of the fluids, improved the cross flow field on the bottom and greatly enhanced the cutting cleaning and rock-breaking efficiency.The rig-site practices of 8 such bits in Shuanghe and Xia’ermeng reservoirs, Henan Oil field proved that the footage of a single bit was enhanced by 20% and the penetration rate by 15% that led to a direct economical benefits of eleven thousands yuan. The results opened a prosperous future for extensive application of this techniques.