Technical Paper: Measuring Completion Quality and Natural Fracture Indicators in Horizontal Wells Using a New Slim Dipole Sonic Memory Tool Conveyed Through the Drillstring and Bit
Society: SEG
Paper Number:
Presentation Date: 2015
Abstract
Engineered completion design is increasingly recognized as
the optimal method for efficient stimulation of horizontal
wells drilled in unconventional resource plays (Slocombe
et. al., 2013 and Ajisafe et. al., 2014). Key to this design
are sonic measurements acquired in lateral wells as they
serve as inputs for anisotropic stress profiling and fracture
characterization which are used to assess completion
quality.
In this study, a new slim dipole sonic tool is used that is
specifically designed for acquiring rich acoustic data using
a unique low risk and driller friendly conveyance system.
The tool has been designed for the horizontal and
unconventional logging environment using predictable
acoustics where the tool effect in the hole is fully
characterized. Horizontal well examples are shown where
data from this slim dipole sonic tool were used to determine
completion quality indicators based on anisotropic stress
and also to determine independent indicators of natural
fractures.
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