Patent ID: 9611729
Date: 2017-04-04
CPC Classifications: E21B,G01V,G16Z

Claim:
1. A method for determining subsurface target locations within a predetermined boundary, which comprises: computing an azimuth and an offset distance based on a point at a total depth for a reference well within the predetermined boundary; creating a line that is perpendicular to the azimuth and passes through a center location of the predetermined boundary; creating a point on the line at a maximum distance from the center location within the predetermined boundary; creating a series of points along the line beginning at the offset distance from the point on the line and passing through the center location until reaching twice the maximum distance; and computing a list of heel/toe pairs for each point in the series of points using a computer processor and adding the list for each point in the series of points to a collection of lists comprising heel/toe pairs as each list is computed, the collection of lists representing the target locations within the predetermined boundary.