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:
Aug. 16, 1988
Filed:
Mar. 28, 1984
Applicant:
Inventor:
Robert M Siebert, Ponca City, OK (US);
Assignee:
Conoco Inc., Ponca City, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
367 29 ; 367 30 ; 364422 ; 181105 ; 73151 ;
Abstract
A method and apparatus for determination of earth formation permeability in situ. A logging sonde supported in a borehole derives attenuation data from at least two ultrasonic energy transmission paths which have a common alignment but differing length, the attenuation data can then be used to determine an empirical X parameter that is directly related to formation permeability.