Shale compressibility evaluation device and method based on vermiculite thermal expansion fracturing

The invention discloses a shale compressibility evaluation device and method based on vermiculite thermal expansion fracturing, is applied to the field of unconventional shale oil and gas development, and aims to solve the problems that currently adopted shale compressibility evaluation experiments...

Full description

Saved in:
Bibliographic Details
Main Authors CHANG XIN, WAN YANGHUI, YUAN FAYONG, HU YI, LI QIANG, JIANG CHENGBAI, DOU RUIJIE
Format Patent
LanguageChinese
English
Published 13.01.2023
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:The invention discloses a shale compressibility evaluation device and method based on vermiculite thermal expansion fracturing, is applied to the field of unconventional shale oil and gas development, and aims to solve the problems that currently adopted shale compressibility evaluation experiments are generally complex in experimental equipment operation and high in experimental cost, and shale feasibility evaluation cannot be directly obtained. According to the method, a mixture of vermiculite and magnesium oxide is controlled through temperature change to crack a shale sample at 0.02 MP/s, the maximum deformation amount and the fracture stress peak value of the shale sample are obtained, the number of broken shale blocks after an experiment is counted, the CT number and the fractal dimension are obtained through a CT scanning and box dimension grid covering method, and the fractal value of the fractal dimension is calculated according to the CT number and the fractal dimension. And substituting the data in
Bibliography:Application Number: CN202211382686