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. 02, 1986
Filed:
Jan. 31, 1985
Applicant:
Inventor:
Russell I Bayh, III, Carrollton, TX (US);
Assignee:
Otis Engineering Corporation, Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166106 ; 166319 ;
Abstract
A landing nipple and safety system for installation in wells having a submersible pump for pumping formation fluids to the well surface plus a subsurface safety valve for maintaining the well under control during installation and removal of the pump from the well. The subsurface safety valve may be hydraulically actuated by either the discharge pressure of the pump or input power fluid for hydraulically powered pumps. The landing nipple to which the pump is attached and in which the safety valve is installed can be retrieved from the flow conductor by conventional wireline techniques.