Patents Assigned to Petroleum Physics Corporation - Justia Patents Search

Patents Assigned to Petroleum Physics Corporation

Method for determining distance and direction from an open well to a cased well using resistivity and directional survey data

Patent number: 4329647

Abstract: The invention disclosed herein is a method for determining distance and direction from an open well to a cased well.

Type: Grant

Filed: June 4, 1981

Date of Patent: May 11, 1982

Assignee: Petroleum Physics Corporation

Inventor: Robert Freedman