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:
Jun. 04, 2024
Filed:
Jan. 07, 2021
National Oilwell Dht, L.p., Houston, TX (US);
Michael Rossing, Houston, TX (US);
Abstract
At least one of pressure pulses, lateral oscillations, and axial oscillations can be generated by a distal downhole tool and a proximal downhole tool while cement is pumped into a well for cementing the well. Also, the generation of at least one of pressure pulses, lateral oscillations, and axial oscillations by the proximal downhole tool can continue even when the cement is no longer pumped around a tubing and is curing. In order to do so, a backflow path from a point downstream of the second vibration tool toward a wellhead is provided. Then a fluid, usually other than cement, is pumped from the wellhead, through the proximal downhole tool, and back into an annulus toward the wellhead. As such, a production tubing may remain centralized while the cement is curing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile