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:
Oct. 31, 2023
Filed:
Aug. 24, 2021
Southwest Petroleum University, Chengdu, CN;
Yongjun Hou, Chengdu, CN;
Yuwen Wang, Chengdu, CN;
Pan Fang, Chengdu, CN;
Mingjun Du, Chengdu, CN;
Duyu Hou, Chengdu, CN;
Southwest Petroleum University, Chengdu, CN;
Abstract
A negative pressure shale shaker integrated with negative pressure generation and gas-liquid separation includes a base, a liquid inlet buffer tank, a screen frame assembly, a support frame, a vacuum hose, a damping spring, a screen frame inclination angle adjustment device, a drainage hose, a negative pressure automatic drainage device, a vacuum pan, a three-way pipe, a liquid mist separator, a connecting pipe, a vacuum pressure limiting valve, a silencer and a negative pressure fan. A drilling fluid containing cuttings, after entering the screen with a negative pressure thereunder, rapidly passes through the screen along with air into a vacuum chamber. The air in the vacuum chamber is directly drawn away through holes formed on the side plates of the screen frame by the negative pressure fan.