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:
Dec. 20, 1977
Filed:
Dec. 23, 1976
Applicant:
Inventor:
Bernard Tramier, Pau, FR;
Assignee:
Societe Nationale Elf Aquitaine (Prod.), Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D / ;
U.S. Cl.
CPC ...
47 58 ; 47DI / ; 61 35 ;
Abstract
Restoration of drilling mud-pits which have served for purification treatment of drilling effluents in the search for hydrocarbons on terra firma by covering the floc of the mud-pit with a layer of water-absorbent material, particularly a natural cellulosic material, before filling the hollow or basin in with earth. The process makes it possible to firmly stabilize the refilled ground and make it cultivatable; it represents a substantial economy over known methods.