Abstract:
Distributed
Fiber Optics (DFO) has been at the forefront for unconventional well
diagnostics. The core of this technology targets an in-depth understanding of
completion optimization and flow profiling through cluster efficiency and
stage spacing. The focus will be on a case study from a US unconventional
well, where a 0.6” OD, 22,000-foot-long carbon fiber rod was deployed to
acquire DAS and DTS for post-frac flow evaluation. The case study will
explain how DFO measurement taken during a post-frac sensing operation, where
the combination of distributed acoustic and distributed temperature
measurements, are used to provide a clear and thorough understanding on
completion analysis. Many different completion strategies are used to obtain
the best production; however, with complex heterogenic rock, it is difficult
to grasp a full understanding on completion design effectiveness. Validating
completion designs with a strong data set is the best method for
understanding how effective completion changes were. This presentation will
showcase a data set that will identify how effective DFO can be in
demonstrating cluster efficiency and production strength from each stage.
Using the conveyed DFO data set, it was abundantly clear which completion
design outperformed the others.
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