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In-Situ Strength Using Mechanical Specific Energy During Sidewall Coring

IP.com Disclosure Number: IPCOM000242365D
Publication Date: 2015-Jul-09
Document File: 1 page(s) / 13K

Publishing Venue

The IP.com Prior Art Database

Abstract

Rock strength has been successfully estimated by Mechanical Specific Energy (MSE) or a variation of it (SPE24584, 92318, 112731). In simple terms, MSE is energy consumed in the process of drilling. It can be measured either by operating parameters (WOB, Torque, ROP, RPM and bit diameter) or even by wattage of the motor with due calibration points. Comminution or grinding industry uses kWh/t for optimization. The current work proposes to use the above techniques as an interdisciplany approach.

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RCR4-57546-US

Title:  In-Situ Strength Using Mechanical Specific Energy During Sidewall Coring

Abstract:  Rock strength has been successfully estimated by Mechanical Specific Energy (MSE) or a variation of it (SPE24584, 92318, 112731).  In simple terms, MSE is energy consumed in the process of drilling.  It can be measured either by operating parameters (WOB, Torque, ROP, RPM and bit diameter) or even by wattage of the motor with due calibration points.  Comminution or grinding industry uses kWh/t for optimization.  The current work proposes to use the above techniques as an interdisciplany approach.

Description:  Insitus strength is important for any oil and gas exploration, and exploitation and all along the life of the project.  It’s important for conventional, much more important for un-conventional and for unconsolidated sediments (or in deep water where core recovery is not always possible) this is the only technique possible to give an indication of strength.