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:
Jul. 28, 1992
Filed:
Dec. 31, 1990
Institut Francais du Petrole, Rueil-Malmaison, FR;
Abstract
A subterranean zone and a neighbouring zone are, respectively, for example, a petroliferous deposit and an underlying aquiferous nappe at a fluid pressure higher than that prevailing in the subterranean zone. A method of stimulating production of effluent from the subterranean zone involves drilling at least one deflected drain (preferably nearly or totally horizontal) through the petroliferous zone, the neighbouring zone and an intermediate layer which separates the petroliferous zone from the aquiferous nappe. The intermediate layer is, for example, slightly permeable because of the presence of heavy and viscous hydrocarbon products. The drain is equipped with a pipe fitted with openings at the subterranean zone and at the neighbouring zone and with packer devices selectively positioned in the pipe. A controlled opening of one packer device during production allows injection of water under pressure into the subterranean zone in order to promote production of effluent therefrom.