Optimization of Bit Selection and BHA Design for the Oberkling Gas Storage Drilling Campaign
Research output: Thesis › Master's Thesis
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.
|Translated title of the contribution||Optimierung der Meißelwahl und des BHA-Designs für das Oberkling Gas Speicher Bohrprojekt|
|Award date||30 Mar 2012|
|Publication status||Published - 2012|