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:
Sep. 27, 1988
Filed:
Aug. 08, 1984
Applicant:
Inventors:
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
175 61 ;
Abstract
A method for development drilling in a mineral producing field such as an oil and gas field wherein a plurality of wellbores are drilled in the earth through at least one mineral containing subsurface geologic formation, the plurality of wellbores being drilled from a central drill site radially outwardly therefrom wherein the wellbores are drilled at varying angles from vertical within the range of from about 30 to about 87.5 degrees from vertical, the wellbores passing through at least one formation at an angle from vertical.