Body structure and nozzle for enhancing the flow of drilling...

Details Body structure and nozzle for enhancing the flow of drilling... Body structure and nozzle for enhancing the flow of drilling...

E - Fixed Constructions

21

B

255/73

E21B 10/18 (2006.01) E21B 10/08 (2006.01) E21B 10/16 (2006.01) E21B 10/26 (2006.01) E21B 10/52 (2006.01) E21B 10/60 (2006.01)

Patent

CA 1163625

ABSTRACT OF THE DISCLOSURE A rotary drill bit for drilling a bore hole in the sur- face of the earth is provided in which the drill bit comprises a body having a duct therethrough for carrying drilling fluid. A conical cutting head having an axis at an acute angle with respect to the axis of the drill bit is mounted in the cutting head. An elongated nozzle is positioned at the end of the duct for injecting the drilling fluid into the bore hole. The nozzle has an opening which opens into the bore hole wherein the longitudinal center line of the opening follows the locus of the mid-point between the side wall of the bore hole and the outermost circumference of the cutting head. Drilling fluid injected through the nozzle removes detritus from between the teeth and the cutting head at the bottom of the bore hole. The body of the drill bit has a first portion having a truncated conical surface with the axis of the truncated cone coinciding with the axis of the cutting head. The surface of the truncated cone is tangent to the side surface of the bore hole at a line on the opposite side of the body from the nozzle. This forms a passage between the surface of the truncated cone and the side surface of the bore hole for the upward flow of drilling fluid and detritus.

378328

Affiliated with

Also associated with

Rating

Body structure and nozzle for enhancing the flow of drilling... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Body structure and nozzle for enhancing the flow of drilling..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Body structure and nozzle for enhancing the flow of drilling... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-679299