Lichun Jia

Title: Lichun Jia and a Method for Evaluating Rock Compressive Strength

Introduction

Lichun Jia is an inventor associated with Southwest Petroleum University in Pengzhou, China. His patent work addresses methods for assessing rock properties relevant to petroleum and natural gas exploration and development.

Latest Patents

The provided information lists 1 patent for Jia: “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 friction to estimate rock compressive strength.

The disclosed approach first uses X-ray diffraction, nano-indentation experiments, and friction tests to obtain mineral proportions, indentation crack lengths and load-displacement curves, and the rock’s friction coefficient. Applying energy conservation principles, it calculates the elastic modulus and plane-strain fracture toughness of individual minerals. It then combines mineral parameters according to their proportions to derive rock failure characteristics, which are used with the friction coefficient to calculate uniaxial and triaxial compressive strength.

Career Highlights

Jia’s listed patent connects laboratory measurements of rock cuttings with estimates of mechanical strength. This approach is relevant to evaluating rock formations in petroleum and natural gas exploration and development.

Collaborations

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

Conclusion

Lichun Jia’s listed invention combines mineralogical, nano-indentation, and friction measurements to estimate rock compressive strength, supporting the assessment of formations relevant to energy exploration.