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:
May. 31, 2022
Filed:
Nov. 27, 2018
China University of Petroleum - Beijing, Beijing, CN;
Guangqing Zhang, Beijing, CN;
Xuejing Han, Beijing, CN;
China University of Petroleum-Beijing, Beijing, CN;
Abstract
The present invention discloses an apparatus and a method for evaluating properties of a temporary plugging agent based on acoustic emission, wherein the apparatus includes a fracturing machine, an acoustic emission sensor and an acoustic emission analyzer, wherein the fracturing machine is configured to load a sample when oil pressure is stable and remains unchanged in a fracture of the sample, a real fracturing condition being simulated for the sample, and oil being pumped in and a temporary plugging agent being placed into the fracture; the acoustic emission sensor is configured to detect an acoustic wave signal emitted by the sample when the fracturing machine loads the sample; and the acoustic emission analyzer is connected to the acoustic emission sensor and configured to determine that the temporary plugging agent is fractured when a fracture signal occurs in the acoustic wave signal. The present invention can obtain the fracture information of the sample without disturbing the normal experimental process and experimental results, and the experimental measurement results are more practical.