Zhuzheng Li

Title: Zhuzheng Li and a Method for Evaluating Rock Compressive Strength

Introduction

Zhuzheng Li is an inventor associated with Southwest Petroleum University in Pengzhou, China. His patent work addresses methods for assessing rock strength in petroleum and natural gas exploration and development.

Latest Patents

Li is associated with 1 patent: “Method for Evaluating Rock Compressive Strength Based on Cuttings Mineral Composition, Nano-Indentation, and Friction Tests.” The method combines measurements of mineral composition, nano-indentation behavior, and rock friction to estimate uniaxial and triaxial compressive strength.

The disclosed approach first obtains mineral proportions, nano-indentation crack lengths and load-displacement curves, and the rock’s friction coefficient through laboratory experiments. It then uses energy conservation principles to calculate mineral elastic moduli and plane-strain fracture toughness. Finally, it combines these mineral properties through weighted superposition to derive rock failure parameters, which are used with the friction coefficient to calculate compressive strength.

Career Highlights

Li’s listed patent connects laboratory measurements with strength estimates relevant to subsurface rock evaluation. The approach brings together mineralogical analysis, mechanical testing, and calculations intended to support petroleum and natural gas exploration and development.

Collaborations

The provided information lists Qiangui Zhang and Xiangyu Fan as Li’s coworkers. It does not specify their roles in the patent or describe particular collaborative contributions.

Conclusion

Zhuzheng Li’s patent presents an integrated method for estimating rock compressive strength from cuttings and laboratory test results, reflecting Southwest Petroleum University’s work in petroleum and natural gas exploration and development.