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:
Mar. 22, 2022
Filed:
Feb. 12, 2019
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Ibrahim El Mallawany, Spring, TX (US);
Paul Gregory James, Spring, TX (US);
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 11/00 (2006.01); F16K 15/18 (2006.01); E21B 34/16 (2006.01); F16K 1/52 (2006.01); F16K 15/02 (2006.01);
U.S. Cl.
CPC ...
F16K 15/1826 (2021.08); E21B 34/16 (2013.01); F16K 1/52 (2013.01); F16K 15/025 (2013.01);
Abstract
Systems for chemical injection. An example system includes a pilot valve comprising: a hydraulic piston, a poppet, and a biasing device. The system further comprises a jay-selector comprising: a rotatable jay-piston having jay-slots, and a plurality of ports. The system additionally comprises a plurality of flow restrictors.