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:
Sep. 23, 2003
Filed:
Jun. 04, 2001
Applicant:
Inventors:
Kevin R. Manke, Marlow, OK (US);
Harold Wayne Nivens, Runaway Bay, TX (US);
Samuel Bianco, Stavanger, NO;
Charles M. MacPhail, Gladewater, TX (US);
Ricardo Maldonado, Carrollton, TX (US);
Assignee:
Halliburton Energy Services, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 4/900 ; E21B 4/908 ; E21B 4/710 ;
U.S. Cl.
CPC ...
E21B 4/900 ; E21B 4/908 ; E21B 4/710 ;
Abstract
Systems and methods particularly suitable for open hole formation testing are provided. In a described embodiment, a method of performing a test on a formation intersected by a wellbore includes the steps of flowing fluid into an apparatus from the formation, displacing a fluid barrier of the apparatus in one direction, flowing the formation fluid out of the apparatus and back into the formation by applying pressure to the apparatus, and displacing the fluid barrier in an opposite direction.