The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 2025
Filed:
Jan. 14, 2025
Southwest Petroleum University, Chengdu, CN;
Xiangchao Shi, Chengdu, CN;
Zhaowei Wang, Chengdu, CN;
Maoping Gao, Chengdu, CN;
Shuai Chen, Chengdu, CN;
Ye Jiao, Chengdu, CN;
Rongrong Wang, Chengdu, CN;
Zonglin Lyu, Chengdu, CN;
SOUTHWEST PETROLEUM UNIVERSITY, CHENGDU, CN;
Abstract
A design method and system for a cutting structure of a PDC drill bit with spiral blades is provided, including carrying out uniaxial and triaxial compressive strength tests on outcrops or underground cores to obtain rock mechanical parameters; establishing a three-dimensional cutting structure of the PDC drill bit based on an archimedean spiral and front and rear row teeth of the PDC drill bit; establishing a bit-rock finite element model based on the rock mechanical parameters and the three-dimensional cutting structure of the PDC drill bit; obtaining a time history curve for weight-on-bit and torque-on-bit based on the bit-rock finite element model; establishing a design scheme for the cutting structure of the PDC drill bit based on the time history curve; and obtaining the cutting structure of PDC drill bit with spiral blades based on the design scheme for the cutting structure of the PDC drill bit.