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. 06, 1985
Filed:
Aug. 03, 1984
Walter L Richards, Huntington Beach, CA (US);
Methane Drainage Ventures, Placentia, CA (US);
Abstract
A method for collecting oil from a plurality of spaced-apart oil-bearing subterranean formations includes the steps of drilling a shaft from the earth's surface to a depth sufficient to intersect a plurality of spaced-apart oil-bearing formations, excavating a working area at selected oil-bearing subterranean formations and thereafter drilling a plurality of generally horizontal boreholes from each of the working areas into the selected oil-bearing subterranean formations. Thereafter, oil collection troughs are excavated within each of the working areas to collect oil from the boreholes and conduct the collected oil into a sump from which the oil is raised to the earth's surface utilizing a single lift. During collection and raising of the oil from each of the spaced-apart oil-bearing subterranean formations, the shaft and working areas are sealed.