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. 26, 1988
Filed:
Oct. 08, 1986
Applicant:
Inventors:
Paul E Pilkington, Houston, TX (US);
Mark P DiStefano, Ponca City, OK (US);
Marvin C Allen, Ponca City, OK (US);
Assignee:
Conoco Inc., Ponca City, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
73155 ; 73 6 / ;
Abstract
Method and apparatus for downhole chromatography. A tool housing includes a chromatograph and a formation tester for extracting a fluid sample from a formation adjacent the wall of an uncased well bore. When such a sample is extracted it is directed into the chromatograph which analyzes the same and transmits the information to the surface. Thereafter, solvent from a reservoir in the housing is used to purge the chromatograph to enable the tool to be relocated to a different level for additional formation fluid analysis.