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:
Nov. 28, 1989
Filed:
Nov. 23, 1988
Gary D Zunkel, Chickasha, OK (US);
H Kent Beck, Duncan, OK (US);
Jon B Christensen, Ankeny, IA (US);
Halliburton Company, Duncan, OK (US);
Abstract
An above packer perforate, test and sample tool for use in obtaining a sample of fluid from a formation reservoir in a well. The apparatus includes a sampler and an actuator cylinder positioned above a packer and a valve body below the packer. An operating mandrel opens a valve below the packer to flow the fluid from a well annulus defined below the packer to a sampling chamber in the sampler above the packer. The operating mandrel is moved in response to a pressure differential between the pressure in the well annulus above the packer and a pressure in the tool. In another embodiment, a second packer may be positioned below the first packer to sealingly engage the well bore below the well formation. A method of sampling fluid from a well formation is also disclosed.