Multistage Stimulation in 2 different sizes

01 February 2019 Dear community,

I am faced with a well design where the reservoir has two different layers. Kimmeridgian layer  (which is above) with a  formation pressure  much higher than the Callovian layer below.

Meaning, production casing (7") will be run up to Kimmeridgian layer and off-bottom cemented. For Callovian layer, would be run 4.5" uncemented production liner. 2 zones will be in casing part and another 2 zones will be in liner part.

Upper completion will be consisted by tieback stinger, production packer, sliding sleeve, chemical injection mandrel & safety valve.

All this would be run on 3.5" 9.2# tubing. I want open hole sliding (frac) sleeves to open/close by coiled tubing and install 2 each in liner & 2 each in casing. Isolate each zone with open hole packers.

 I want to open each zone and perform acid/prop fracturing and produce each zone one by one.

I need your advise if you think it is feasible.

Thanks in advance,
 
Daniyar
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