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. 22, 2019
Filed:
Nov. 21, 2017
Cnpc Usa Corp., Houston, TX (US);
Beijing Huamei, Inc., Beijing, CN;
Ming Zhang, Spring, TX (US);
Chris Cheng, Houston, TX (US);
Dengxiang Bai, Beijing, CN;
Xiongwen Yang, Beijing, CN;
Kuangsheng Zhang, Shanxi, CN;
Yuming Wang, Shanxi, CN;
Peiyuan Hu, Shanxi, CN;
CNPC USA Corp., Houston, TX (US);
Beijing Huamei, Inc., Beijing, CN;
Abstract
The tool assembly vibrates a casing string or drill string in a wellbore. The tool assembly includes a housing, an insert mounted in the housing as a fluidic agitator, and a cover fitted over the insert. The insert includes an inlet chamber, a vortex chamber, and a feedback chamber, and the fluid flow through the insert has a pressure profile with a plurality of levels determined by the feedback chamber. The strength and frequency of the pressure profile can be regulated by the feedback chamber according to position, size and asymmetry of the transition channels connected to the feedback chamber. The high strength and low frequency pressure pulses can be achieved in the limited space of the housing for placement of the inlet and outlet.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile