Earth boring tools with enhanced hydraulics adjacent cutting elements and methods of forming
US11585157B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2020 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | May 28, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tool for drilling a borehole through a formation. The tool comprises a body, blades having rotationally leading surfaces extending from the tool body, cutting elements secured at least partially within cutting element pockets, and linear or rounded transition surfaces between the cutting element pockets and the rotationally leading surface of the blades. The rounded transition surfaces have a radius of curvature between about 3 and 150 millimeters. The disclosure also includes a method of manufacturing an earth-boring downhole tool comprising: providing a tool body and blades comprising a rotationally leading surface extending from the tool body; Forming cutting element pockets into the blades proximate the rotationally leading surface of the blades; Forming linear or rounded transition surfaces between the cutting element pockets and the rotationally leading surface of the blades, the rounded transition surfaces having a radius of curvature between about 3 and 150 millimeters; And securing cutting elements at least partially within the cutting element pockets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.