TY - THES

T1 - Optimization of Bit Selection and BHA Design for the Oberkling Gas Storage Drilling Campaign

AU - Trauner, Stephan

N1 - embargoed until null

PY - 2012

Y1 - 2012

N2 - During this thesis, two drilling projects of the Oberkling gas storage campaign were accompanied and have been investigated directly. A profound analysis of the used drilling bits and bottom hole assemblies (BHA) was performed in order to optimize performance. Results of the evaluation were directly implemented in the on-going planning. The thesis covers an introduction into the challenging geological structure and gives a general overview of IADC’s bit dull grading and bit wear. RAG’s sensor system is introduced and presented as the foundation of further analysis with basic tools for a quick evaluation of the situation at hand. In addition, a detailed inspection of a roller cone bit used in the Oberkling well OKSP-001 documents its damage as investigated in Smith bits’ reliability center. An analytical examination of each run was performed in order to detect shortcomings. A final discussion includes the recommendation of a different BHA configuration along with the economic evaluation of such change.

AB - During this thesis, two drilling projects of the Oberkling gas storage campaign were accompanied and have been investigated directly. A profound analysis of the used drilling bits and bottom hole assemblies (BHA) was performed in order to optimize performance. Results of the evaluation were directly implemented in the on-going planning. The thesis covers an introduction into the challenging geological structure and gives a general overview of IADC’s bit dull grading and bit wear. RAG’s sensor system is introduced and presented as the foundation of further analysis with basic tools for a quick evaluation of the situation at hand. In addition, a detailed inspection of a roller cone bit used in the Oberkling well OKSP-001 documents its damage as investigated in Smith bits’ reliability center. An analytical examination of each run was performed in order to detect shortcomings. A final discussion includes the recommendation of a different BHA configuration along with the economic evaluation of such change.

KW - Optimierung

KW - Bohrmeißel

KW - Meißel

KW - BHA

KW - Oberkling

KW - Gas Speicher

KW - Bohrung

KW - Konglomerat

KW - Tonmergel

KW - Wechsellagerung

KW - Abnützung

KW - optimization

KW - bit

KW - RAG

KW - oberkling

KW - gas storage

KW - BHA

KW - dulling

KW - bit wear

KW - conglomerate

KW - clay marl

KW - roller cone

KW - TCI

KW - PDC

KW - interbedding

M3 - Master's Thesis

ER -