INGENIERÍA DE FATIGA APLICADA AL DISEÑO DE LA PERFORACIÓN ECONÓMICA ADMINISTRATIVA DE UN POZO PETROLERO

Abstract

In the present research as a contribution to the knowledge of the engineering behavior of metallic materials Fatigue under cyclic loading, we propose a new model of string design to minimize fatigue. It describes some of the methods and tools used alternatives to trade, especially those related piping and connections. The experience gained through study, analysis, proposals, and conducting operations with alternative products can anticipate that in many cases, the use of techniques or products that produce significant financial savings. This search option has increased as a result of changes in deposits due to increased secondary recovery, to search for new productive horizons, the depletation of the layers, and others. To mitigate these problems, we have developed new materials, new steels and prediction methods. Maybe some of them are not complete and definitive solution, but taking into account the economic studies generally found that help reduce the cost of extraction. The present challenge in the design and selection, to an oil and gas, is given by what is required to fetch the mineralized reservoirs at greater depths, where the values of external pressure, the presence of hydrogen sulfide (H2S), carbon dioxide (CO2), temperature, slope, paths and others, often indicated as the use of steel from specially formulated for these environments (Steels for High Collapse, for sour service, to deep wells.) connections or using specially designed. This master's thesis shows the application of a new technique to compare the relative fatigue life of drill pipe being rotated in directional holes, using the administration of drilling an oil well. This novel approach called Curvature Index (CI) comparing the different designs for combined fatigue effects of the curvature of the hole, pipe size, weight, schedule, class and axial tension in the tube.