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:
Mar. 19, 2019
Filed:
Jul. 02, 2018
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, CN;
Shouding Li, Beijing, CN;
Zhongming Zhou, Beijing, CN;
Xiao Li, Beijing, CN;
Jianming He, Beijing, CN;
Yanhui Liu, Beijing, CN;
Abstract
The present invention improves the precision in observing cracks in rocks during a hydraulic fracturing test, improving a scientific understanding of the regular pattern of development cracks in of hydraulically fractured rocks. The technical solution includes: hydraulically fracturing the rock with aqueous solutions containing an interventional contrast-enhanced agent, forming hydraulically fractured cracks, wherein the difference in a mass attenuation coefficient μ/ρ of x-rays between the cracks and the rock is improved by the interventional contrast-enhanced agent in the cracks, moreover, the difference in mass energy absorption coefficient μ/ρ of x-rays between the cracks and the rock is improved, then the linear attenuation coefficient of the reception of the detector is changed, improving the imaging resolution for hydraulically fractured cracks in the rock.