S4  Ciências e Engenharia do Petróleo    Titulo: DRILL BITS SELECTION WITH USE OF DATA BANK AND EXPERT KNOWLEDGE   Resumo : ABSTRACT. THE CORRECT SELECTION OF THE BIT IS AN IMPORTANT TASK TO OBTAIN GOOD RESULT IN DRILLING OPERATION. THIS SELECTION PROCESS IS USUALLY BASED ON A DRILL BIT DATABASE AND ENGINEER S EXPERT KNOWLEDGE. THE PRESENT WORK BEGINS WITH A BRIEF REVIEW FROM THE LITERATURE ABOUT METHODS FOR BIT SELECTION. THEN, A DESCRIPTION OF THE MAIN PURPOSE OF THIS WORK IS PRESENTED WHICH IS TO STRUCTURE AND TO ORGANIZE A DRILLING DATABASE AND A KNOWLEDGE BASE THAT WILL BE USED IN THE PROCESS OF BIT SELECTION. THE PROPOSED PROCEDURE WAS IMPLEMENTED IN A COMPUTER SYSTEM, FOR TRICONE TYPE BITS. DRILLING BIT DATABASE FOR THREE DIFFERENT BRAZILIAN SEDIMENTARY BASINS WITH SEVERAL DRILLED WELLS AND DRILLING ENGINEERS KNOWLEDGE FOR DIFFERENT FIELDS WERE COLLECTED RESPECTIVELY IN ELECTRONIC FORM AND, THROUGH INTERVIEWS AND, THEY WERE APPLIED IN THE PROPOSED BIT SELECTION PROCEDURE. THE PRESENT PROCESS HAS SHOWN GOOD PERFORMANCE IN AGREEMENT WITH THE ACCOMPLISHED TESTS. THE SYSTEM IS SUITABLE FOR THE MAINTENANCE AND PRESERVATION OF ACCUMULATED EXPERIENCE BY EXPERTS IN A COMPANY AND, FOR NEW DRILLING ENGINEERS TRAINING PURPOSE. KEYWORDS DRILLING OF OIL WELLS, DRILL BIT SELECTION, INTELLIGENT SYSTEM, KNOWLEDGE BASE     Autores : da Penha, Marco Antonio V.Ribeiro da Penha, Marco Antonio V.Ribeiro Mendes, José Ricardo Pelaquim Morooka, Celso Kazuyuki     Trabalho Completo :   COBEM99 | Comissão  Organizadora | Palestras | Sessões Técnicas | Autor | Simpósios e Sessões Especiais | Revisores |  Título  dos  Trabalhos | Local