Cutting element with nonplanar face to improve cutting efficiency and durability

US11578538B2 · kind B2 · utility

Assignee

• SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

• Manoj D. Mahajan · Houston, US
• John Daniel Belnap · Lindon, US
• Xiaoge Gan · Houston, US
• Yi Fang · Orem, US
• Cheng Peng · Provo, US
• Lynn Belnap · Spanish Fork, US
• Youhe Zhang · Spring, US
• Michael G. Azar · Diemelstraße, US
• Venkatesh Karuppiah · Sugar Land, US
• Anthony LeBaron · Springville, US
• Xian Yao · Sandy, US

Key dates

• Filing date: Jan 8, 2021
• Grant date: Feb 14, 2023
• Expiry date: Jan 8, 2041

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B10/42
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A cutting element has a cutting face at an opposite axial end from a base, a side surface extending from the base to the cutting face, an edge formed at the intersection between the cutting face and the side surface, and an elongated protrusion formed at the cutting face and extending between opposite sides of the edge, wherein the elongated protrusion has a geometry including a border extending around a concave surface and sloped surfaces extending between the border and the edge, and wherein the concave surface has a major axis dimension measured between opposite sides of the border and a minor axis dimension measured perpendicularly to the major axis dimension and ranging from 50 percent to 99 percent of the major axis dimension.