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Reservoir Engineers and Production Engineers should not only care to the opti-
mization of the production of the reservoir but should also be aware of the
operational risks and expenses of the project.
When the well is drilled and a part of its formation is removed, there is
instability of stresses. In that moment comes one of the most important stages of
the project of a well which is ensuring the stability of it, and to achieve this goal it
is necessary to evaluate factors like: rock resistance, temperature variations, well
trajectory, and geometry.
This work proposes a novel framework for a 3D geometric reconstruction and
visualization of the bare holes and its components. Data structures and processes
adopted allow a real-time interaction, using dedicated but not expensive graphic
hardwares. New interfaces and data manipulation are proposed, increasing the
workflow process. In order to maintain this real-time requirement, our system
builds the geometry using a thread-based reconstruction model and level of detail
algorithms for maintaining huge datasets in the memory.
13.2 Related Works
In [ 1 ] it presented a borehole visualization approach, more focused on stress and
breakout analysis. Barton and Zoback [ 5 ] and Peska and Zoback [ 6 ] presents
important factors to be considered in order to model the requirements associated to
a detailed data processing and analysis of this kind of data, that will be considered
on the proposed system.
In [ 7 ] the authors present a technique for modeling a 2D approach, so important
requirements of these structures are maintained and can be analyzed, such as
perforation fluid weight, rock strength, and hole geometry. Figure 13.1 shows the
data obtained by a four arms caliper log. The 2D developed system shows an
approximation of the borehole shape in a specific height (Fig. 13.2 ). Each colored
profile is related to a caliper arm and is used for the 3D reconstruction.
Despite allowing the user to obtain various types of information, this tool does
not present a global spatial view of the three-dimensional geometry of the bore-
hole, even the most experienced specialists can experience difficulties to imagine
its geometry, being a restriction, but a key point to the proposed three-dimensional
tool.
Debogurski [ 8 ] presents a procedural terrain generation using the recent
Marching Cubes Histogram Pyramids (also known as HPmarcher) implementa-
tion. Perlin Noise function is used to procedurally create the terrain. This is an
important approach related to our proposal, since it is a GPU-based approach for
the modeling optimization, which allows a huge number of polygons to be han-
dling in a Real-Time System.
This work merges characteristics from most of these works, enhancing the
visualization process, since important data may be mapped into a huge and
massively geometry borehole reconstruction.
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