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:
Mar. 13, 1979
Filed:
Aug. 19, 1977
Applicant:
Inventor:
George H Agnew, Calgary, CA;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166252 ; 166 64 ;
Abstract
A method for measuring fluid advance in underground formations comprises, (1) driving bench marks into the ground over the formation spaced a predetermined distance apart, (2) measuring and recording the precise vertical displacement of each bench mark at the end of each predetermined period of time, and (3) interconnecting bench marks of similar vertical displacements to form lines, each line indicating the position of the passing of a particular amount of fluid in the formation underground at a particular time.