Patent ID: 8977501
Filing Date: 2015-03-10
Classification: E21B,G01B,G01V,G05B,G06F,G16Z

Abstract:
1. A method for using one or more planned markers with a drilling plan, comprising: using, by a computer system, a first log file of a first well in order to identify and store one or more markers that have a name, a true vertical depth (TVD) and a waveform; creating, by the computer system, one or more planned markers for a second well, where each of the one or more planned markers corresponds to one of the identified and stored markers; assigning, by the computer system, an estimated TVD value and an uncertainty range value to each of the one or more planned markers; and storing, by the computer system, each of the one or more planned markers with the assigned estimated TVD and the uncertainty range value.