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. 14, 2026
Filed:
Dec. 26, 2024
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Pramod Chamarthy, Carrollton, TX (US);
Wei Zhang, Houston, TX (US);
Rodney Marlow, Houston, TX (US);
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/38 (2006.01); E21B 34/06 (2006.01); E21B 43/34 (2006.01); F16K 15/00 (2006.01);
U.S. Cl.
CPC ...
E21B 43/38 (2013.01); E21B 34/06 (2013.01); E21B 43/35 (2020.05); F16K 15/00 (2013.01);
Abstract
A variety of methods and apparatus are disclosed, including, in one embodiment, a bailer to collect debris from a wellbore, the bailer including a passive check valve to provide preferential flow through an annular path over a central path of the bailer with the flow of debris-laden fluid and filtered fluid in an uphole direction through the bailer and provide preferential flow through the central path over the annular path with the flow of fluid in the downhole direction.