The development of drilling techniques closely follows the difficulties of operating well events at low costs. In the Amazon Region, problems such as logistic support at high costs did not allow for the use of air drilling techniques as a means of obtaining the results necessary to the development of the field. Without these, there was no justification for promoting initial investments in air drilling equipment. After the Urucu/AM roads were completed, we were able to bring equipment to the area of operation. This equipment was tested in two wells, one directional and one vertical. In this paper, we describe the pioneer use of air drilling in their region and present the results obtained through it as well as the problems encountered and the techniques used to solve them. (author) 2 refs., 7 figs., 3 tabs.
Abreu, Gabriel Raimundo L; Santana, Esdras Gomes de; Souza, Gilberto Bellas de;  Leme, Junior, Leandro; Machado, Jorge Barreto 
- PETROBRAS, Manaus, AM (Brazil). Distrito de Perfuracao da Amazonia. Superintendencia de Operacoes
- PETROBRAS, Manaus, AM (Brazil). Distrito de Perfuracao da Amazonia. Div. de Perfuracao