Prediction of formation and stratigraphic layers while drilling

US10928537B2 · kind B2 · utility

Assignee

• Baker Hughes, a GE company, LLC · US

Inventors

• Anne Bartetzko · Celle, DE
• Stefan Wessling · Sulingen, DE

Key dates

• Filing date: Jul 2, 2020
• Grant date: Feb 23, 2021
• Expiry date: Jul 2, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01V1/50
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An embodiment of a method of predicting a location of one or more features of an earth formation during a downhole operation includes acquiring reference data and identifying one or more reference data sections, each reference data section corresponding to a feature of interest and having an associated depth or depth interval, deploying a drilling assembly and drilling a target borehole in the earth formation, and performing measurements during the operation by a downhole measurement device to generate measurement data. The method also includes performing one or more correlations of the one or more measurement data sections with one or more reference data sections; and predicting at least one of a depth of a subsequent feature of interest located beyond a current carrier depth and a point in time of a future event associated with the subsequent feature of interest based on the correlation.