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:
Apr. 21, 2025
Filed:
Dec. 19, 2021
Schlumberger Technology Corporation, Sugar Land, TX (US);
Marco Quilico, Pearland, TX (US);
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Abstract
A tubing pressure insensitive and hydrostatic pressure insensitive control system includes a housing, a hydraulic piston sealingly disposed in the housing via a first seal set, and a balance piston sealingly disposed in the housing via, at least, a second seal set and a third seal set, the balance piston comprising a through-piston communication port. The housing includes a control pressure chamber associated with the hydraulic piston, and a balance pressure chamber associated with the balance piston. The system also includes a control line from the housing to surface, the control line being in fluid communication with the control pressure chamber, and a balance line from the housing to the surface, the balance line being in fluid communication with the balance pressure chamber.