Core Lab welcomes Guardian Global Technologies as part of the Core Lab Team!
Click here to learn about Guardian
and their complementary next generation Production Enhancement technologies.
Robert A. Woodroof, Jr., Mahmoud Asadi, Mark N. Warren, ProTechnics Division, Core
Proper fluid and proppant placement are crucial to successful propped fracture stimulation.
Numerous completion diagnostic technologies are available to characterize the placement
of the treatment. Until recently, characterization of fracturing fluid cleanup could
only be simulated in the laboratory and anecdotally monitored in the field. A technique
utilizing a family of unique, environmentally friendly, fracturing fluid compatible,
chemical tracers has now been developed for quantifying segment-by-segment recovery
for individual fracturing treatments and stage-by-stage recovery for multi-stage
fracturing treatments. Case histories demonstrate that individual, chemically-differentiated
and/or proppant-differentiated, fracturing treatment segments and/or individual
fracturing treatment stages are often not being effectively recovered. It has also
been demonstrated that the chemical make-up and/or the proppant scheduling of these
individual fracturing fluid segments may not only be detrimentally affecting their
incremental cleanup but ultimately the production contribution from the corresponding
portions of the fractured reservoir. The validation of improvements in fracturing
fluid cleanup and production enhancement resulting at least in part from changes
in the chemistry of the fracturing fluids and/or changes in proppant scheduling
are demonstrated using the tracer technology.
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