Information Technology Reference
In-Depth Information
Chapter 13
Real-Time Visualization and Geometry
Reconstruction of Large Oil and Gas
Boreholes Based on Caliper Database
Fabiana R. Leta, Esteban Clua, Diego C. Barboza,
João Gabriel Felipe M. Gazolla, Mauro Biondi
and Maria S do Souza
Abstract The evaluation of technical and economical viability before starting the
drilling process of a gas or oil reserve is very important and strategic. Among other
attributes, the soil structure around the borehole must be analyzed in order to
minimize the risks of a collapse. This stability analysis of a gas or oil reserve is a
challenge for specialists in this area and a good result at this stage could bring a
deep impact in reduction of drilling costs and security. A tool known as caliper [
1
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is inserted into the drilling spot to perform a series of measurements used to
evaluate the well's viability. For each position along the borehole, information
such as sensors' position, orientation, well's resistivity, and acoustic data are
obtained and recorded. These data allow the user to find flaws in the soil, leaving
to the geologist the decision whether the well is feasible or not, and help them to
study possible actions to minimize its usage risk. Currently, the data obtained by
the caliper are used for the visualization of individual sections of the well, pro-
jected in a bi-dimensional plane, considering a cylinder projection. However, an
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