Apparatus for stress freezing experiment during fracturing process

US10408721B2 · kind B2 · utility

Assignee

• China University of Mining and Technology-Beijing · CN

Inventors

• Yang Ju · Chengdu, CN
• Peng Liu · Beijing, CN
• Hongbin Liu · Beijing, CN
• Yongming Yang · Beijing, CN

Key dates

• Filing date: Dec 7, 2017
• Grant date: Sep 10, 2019
• Expiry date: Dec 7, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device for stress-freezing experiments during fracturing process according to the present application, in which heating and cooling treatment on a specimen under corresponding temperature control according to a preset temperature gradient and a photosensitive curve is performed by a temperature control system, to realize stress-freezing of the specimen; a pressure is applied to a specimen by a true triaxial servo loading system; and corresponding fracturing experiments are performed to the specimen by a fracturing liquid pumping system having an output end arranged in a thermo-controlled oven.