Patent · US Active

Tracking shearing cutters on a fixed bladed drill bit with pointed cutting elements

US8839888B2 · kind B2 · utility

1Cited by

139References

24Claims

0Family size

Assignee

SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

David R. Hall · Provo, US
Ronald B. Crockett · Payson, US
Marcus Skeem · Provo, US
Francis Leany · Salem, US
Casey Webb · Spanish Fork, US

Key dates

Filing date	Apr 23, 2010
Grant date	Sep 23, 2014
Priority date	—
Expiry date	Jun 1, 2031

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B10/55
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

In one aspect of the invention, a fixed bladed drill bit comprises a working surface comprising a plurality of blades converging at a center of the working surface and diverging towards a gauge of the bit. Each blade comprises a plurality of pointed cutting elements and another plurality of shearing cutters. The plurality of shearing cutters comprises a first shearing cutter. The first shearing cutter on each blade tracks the first shearing cutter on other blades along a common circular cutting path.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.