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.

Date of Patent:
Feb. 08, 1994

Filed:

Feb. 09, 1993
Applicant:
Inventors:

Hooman Laali, Dallas, TX (US);

Ralph Navarro, Jr, Dallas, TX (US);

Assignee:

Mobil Oil Corporation, Fairfax, VA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
73153 ; 73 38 ;
Abstract

A first fluid having a dyed styrene monomer is injected into a porous reservoir rock to effect saturation. A second fluid, miscible with the first fluid and having a dyed styrene monomer differing in color from the first fluid, is injected into the porous rock to displace the first fluid. Effluent flow from the porous rock is monitored with UV-visible light spectroscopy for use in determining oil displacement characteristics of the porous rock. Subsequent rapid polymerization of the styrene monomer within the porous rock allows identification and characterization of the controlling factors and attributes of the pore network responsible for entrapment of the residual phase. This allows assessment of larger intervals of the reservoir rock.


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