Spinning diamond broach

Abstract

Embodiments of the present invention relate to a pattern of grooves and peaks that cause an oilfield tool to rotate or spin as it ascends and/or descends in a wellbore. This rotating/spinning action can better remove corrosion/build-up on the wellbore walls. The pattern can include three primary characteristics: rifled grooves; crosshatch grooves; and peaks. Rifled grooves can constitute a series of spiral or helical grooves cut (or otherwise formed) into an exterior surface of device. These grooves are designed to impart a spin to the device as it ascends and/or descends in a wellbore. This spin stabilizes the plunger's movement, while also causing cutting edges on the peaks (created by the combination of rifled grooves and crosshatch grooves) to better remove corrosion/build-up on the walls of a wellbore than known prior art designs.

1 . A tool for cleaning tubing walls as the tool traverses the tubing, wherein the tool comprises:
 a body having a first end, a second end, and a longitudinal axis; and   a pattern on the body located between the first end and the second end, whereby said pattern induces the tool to spin around its longitudinal axis as the tool traverses the tubing.   
     
     
         2 . The tool of  claim 1  wherein the pattern includes a rifled groove. 
     
     
         3 . The tool of  claim 2  wherein the pattern further includes a crosshatch groove. 
     
     
         4 . The tool of  claim 3  wherein the pattern further includes a plurality of peaks formed by the rifled groove and the crosshatch groove. 
     
     
         5 . The tool of  claim 4  wherein at least some of the plurality of peaks include a cutting edge, wherein the cutting edge cleans the tubing walls as the tool traverses the tubing. 
     
     
         6 . The tool of  claim 5  wherein the rifled groove has a first depth, and the crosshatch groove has a second depth. 
     
     
         7 . The tool of  claim 6  wherein the first depth is deeper than the second depth. 
     
     
         8 . The tool of  claim 7  wherein the rifled groove comprises a plurality of rifled grooves. 
     
     
         9 . The tool of  claim 8  wherein the crosshatch groove comprises a plurality of crosshatch grooves. 
     
     
         10 . The tool of  claim 9  wherein the pattern is located at the first end of the tool. 
     
     
         11 . The tool of  claim 10  wherein the pattern is located at the first end of the tool and separately between the first end and the second end of the tool. 
     
     
         12 . The tool of  claim 11  wherein the tool is an artificial lift device. 
     
     
         13 . The tool of  claim 12  wherein the tool is a plunger. 
     
     
         14 . The tool of  claim 13  wherein the tubing walls comprise the walls of production tubing in an oil and gas well.