ABSTRACT of Presentation
The decline of the oil price has caused operators to turn to systems that both simplify operations and reduce costs. These same systems also are delivering significantly more oil. Over the past five years these chemical systems are producing as much as 2x the oil from side by side comparisons to guar systems; e.g. same pad, same frac crew, etc.
This rather significant change was brought about with the development of economically attractive nanoparticulates and microemulsions that render polymer systems excellent viscoelastic properties that have meaningful G’ values. Also, one of the other keys is that “the small” leads to incredible increases with respect to useful surface area. The benefits of this achievement are many and the subject of this discussion.
One such example deals with the rate of polymer hydration: “Hydration is sufficiently fast that polymer hydration tanks are being eliminated from frac jobs with polymer feeding directly to the sand blender.” Further, at 2-3 gpt over 500,000 lbs. of 20/40 mesh sand are being placed per stage. Regain conductivities are in the 90’s compared to guar in the 30-40% range.
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