| 主权项 |
1. A drilling rig having a mini-stabilizer tool for connecting to downhole components, the mini-stabilizer tool configured to simultaneously smooth a wellbore, centralize the downhole components from wear and damage and flow drilling fluid to at least one downhole component or at least one operating component while allowing wellbore fluid to flow to a surface unimpeded, the drilling rig comprising:
a) a tower having a crown with a plurality of sheaves; b) a drawworks connected to a drawworks motor, the drawworks motor connected to a power supply; c) a cable extending from the drawworks through the plurality of sheaves over the crown; d) a lifting block connected to the cable; e) a hydraulic pump connected to a tank for flowing fluid into the wellbore as a drill pipe is turned into the wellbore; f) a rotating means for turning the drill pipe into the wellbore; g) a blowout preventer connected between the rotating means and the wellbore for receiving the drill pipe; and h) the mini-stabilizer tool mounted in a first drill pipe section and a second drill pipe section as the drill pipe is run into the wellbore to prevent wear and damage to the at least one downhole component or the at least one operating component; wherein the mini-stabilizer tool comprises:
i) a shaft configured to flow the drilling fluid downhole;ii) a box end with a constant outer diameter and a box end chamber for flowing the drilling fluid through the box end, the box end chamber having a tapered inner wall for removable engagement with a first downhole component;iii) a tapered pin end with a pin end bore for flowing the drilling fluid through the tapered pin end, wherein the tapered pin end removably engages a second downhole component; andiv) a cutting section fluidly connected between the box end and the tapered pin end, wherein the cutting section comprises:
1) a plurality of helical blades formed longitudinally between the box end and the tapered pin end, the plurality of helical blades of the cutting section creates a cutting section outer diameter that is larger than the constant outer diameter of the box end;2) a plurality of flutes, each flute of the plurality of flutes consisting of a plurality of concave sections, each flute formed between a pair of helical blades of the plurality of helical blades, each flute for flowing the wellbore fluid across an outer surface of the mini-stabilizer tool; and3) a cutting section bore for flowing the drilling fluid from the box end toward the tapered pin end; andv) a separator fluidly connected between the tapered pin end and the cutting section, the separator configured with a face on an end opposite the cutting section, the separator adapted to prevent the second downhole component from connecting with the plurality of helical blades, the separator having a diameter slightly larger than the tapered pin end at its largest diameter but smaller than a cutting section outer diameter. |
