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. 24, 1984
Filed:
Dec. 06, 1982
Donald K Wunderlich, Richardson, TX (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
A row of injection wells is widely separated from a parallel row of production wells by a plurality of rows of intermediate uncased column wells by means of which combustion links are established between the respective injection and production wells perpendicular to such rows. The pattern is ignited through a row of intermediate wells in order to prevent combustion from occurring directly beneath the injection wells. Means are also provided for shutting down the operation before the burn front reaches the production wells. In this manner, the danger of subsidence at both injection and production wells during operations is substantially eliminated.