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:
Nov. 23, 2021
Filed:
May. 30, 2019
Petrochina Company Limited, Beijing, CN;
Xinglong Chen, Beijing, CN;
Jiazhong Wu, Beijing, CN;
Haishui Han, Beijing, CN;
Shi Li, Beijing, CN;
Hongwei Yu, Beijing, CN;
Zemin Ji, Beijing, CN;
PETROCHINA COMPANY LIMITED, Beijing, CN;
Abstract
The present disclosure provides a microbubble generation device and equipment, wherein the microbubble generation device comprises: a microbubble generation mechanism having a housing and a core tube provided to pass therethrough, wherein at least one filter plate is provided on a peripheral sidewall of the housing, and an annular space is formed between the housing and the core tube; a flow rate control mechanism provided in the annular space, and connected to the core tube that is communicated with the annular space through the flow rate control mechanism, wherein a blocking ball is provided in the flow rate control mechanism and capable of blocking the flow rate control mechanism in a state that a pressure of gas injected into the flow rate control mechanism decreases; and a pressure balancing mechanism provided outside the housing and having a pressure balancing tube and a fluid check valve connected thereto. The present disclosure can withstand a huge pressure difference during a movement within a wellbore from a ground surface to an oil reservoir and take preventive measures for the failure. The gas injection process of the present disclosure not only meets the microbubble volume requirement, but also provides safe control measures.