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Even though I am no oil expert ,
I still think ;from recent past history on our wells that, the longer the frac fluid and propant is in Defender the better the chance of a longer well life as; the propant; will have better chance of settling under pressure ; keeping open those fissures high up in the frac area .
Not worried about any perceived 'delays' as Hal and TB have made this regime on fraccing very clear on previous successful completions. This technology is an expanding science with new knowledge being gained with every well being drilled .Opinion only