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:
Aug. 18, 2020
Filed:
Dec. 02, 2016
Southwest Petroleum University, Chengdu, CN;
Ping Guo, Chengdu, CN;
Shuai Wu, Chengdu, CN;
Wanbo Zhang, Chengdu, CN;
Yisheng Hu, Chengdu, CN;
Yijian Chen, Chengdu, CN;
Huimin Zhang, Chengdu, CN;
Zhouhua Wang, Chengdu, CN;
Jianfen Du, Chengdu, CN;
Huang Liu, Chengdu, CN;
Hongmei Ren, Chengdu, CN;
SOUTHWEST PETROLEUM UNIVERSITY, Chengdu, CN;
Abstract
A direct method for manufacturing a large model fractured core and maintaining original oil-water saturation, including the following steps: (1) determining the volume V, porosity φ, permeability K, oil saturation S, water saturation Sand the like of a fractured core to be manufactured; (2) preparing simulated oil, and determining the used oil mass m=V×ρ; (3) under the circumstance of no consideration of oil saturation, acquiring the mass of the used water, cement and quartz sand; (4) while establishing oil saturation, acquiring the mass mof water for manufacturing the core as m=a−V×ρ; (5) mixing oil, water and an emulsifier evenly to prepare an oil-in-water emulsion; (6) adding cement and quartz sand into the emulsion and stirring evenly to obtain cement slurry; (7) when a cement sample is in a semi-solidified state, cutting the cement sample with a steel wire; and (8) solidifying the cement sample to the end.