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1991•SPE Drilling EngineeringRequires access

Field Verification of Drilling Models and Computerized Selection off Drill Bit, WOB, and Drillstring Rotation

Eric Maidla, Shiniti Ohara

Open publisher page 44 citations

Abstract

Summary A computer program was developed for the simultaneous selection of a roller-cutter bit, bit bearing, weight on bit (WOB), and drillstring rotation that minimizes drilling cost per foot for a single bit run. Two drilling models were tested with data from five wells located offshore Alagoas, Brazil. Results show that the rate of penetration (ROP) of the fifth well can be predicted with coefficients calculated from the four previous wells, resulting in cost savings.

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What this paper is about

Summary A computer program was developed for the simultaneous selection of a roller-cutter bit, bit bearing, weight on bit (WOB), and drillstring rotation that minimizes drilling cost per foot for a single bit run. Two drilling models were tested with data from five wells located offshore Alagoas, Brazil. Results show that the rate of penetration (ROP) of the fifth well can be predicted with coefficients calculated from the four previous wells, resulting in cost savings.

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Available abstract

Summary A computer program was developed for the simultaneous selection of a roller-cutter bit, bit bearing, weight on bit (WOB), and drillstring rotation that minimizes drilling cost per foot for a single bit run. Two drilling models were tested with data from five wells located offshore Alagoas, Brazil. Results show that the rate of penetration (ROP) of the fifth well can be predicted with coefficients calculated from the four previous wells, resulting in cost savings.

Key concepts: Rate of penetration, Drilling, Drill bit, Penetration rate, Bit (key), Petroleum engineering, Offshore drilling, Rotation (mathematics)

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