Carbonate Reservoir Characterization: Part 07
1. To what extent, a reservoir engineer will be able to evaluate (a) fluid properties; (b) fractional flow characteristics of rock; (c) formation pressure; and (d) directional permeabilities - in a carbonate reservoir?
Feasible to identify the physical processes responsible for the deviation between ‘a flood simulator history match’ with that of ‘the actual field production history’?
Feasible to deduce the details of fractional fluid production of each zone, in each well? Feasible to identify, whether, the fluid contacts keep moving in the reservoir? Which of the various zones, exactly, produce water, oil and gas? Feasible to ensure, whether, the pay keeps moving because of water or gas encroachment? Where exactly (which zone), the external fluids are getting injected into the reservoir? Feasible to have a control over the rates at which, various zones in a well, need to be produced? Feasible to make a comparison between the production rates of each zone with that of their respective zone’s potential? Feasible to deduce, whether, are there, any portion of the oil field that requires additional well?
2. To what extent, a production engineer will be able to assess (a) pay zone distribution in the vertical direction; (b) the requirement of stimulation; (c) reservoir compatible fluids; (d) the nature of injection profile; (e) the evolution pattern of volumetric production results; (f) required tuning methodologies for history matching; and (g) finding efficient ways to bridge the gaps between pore-scale, core-scale and pilot-scale studies with that of the real field scenario – in a carbonate reservoir?
To what extent, the presence of unperforated or incomplete productive zones would hinder the oil recovery factors in a carbonate reservoir?
Feasible to delineate the thief zones with ease – that remains to be closed off? Feasible to ensure whether the completion intervals have zonal isolation integrity?
Feasible to deduce precisely, whether, how long, will, each wellbore, would remain to be usable efficiently?
3. To what extent, drilling engineer will be able to assess
(a) the pressures encountered @ various locations spatially and temporally within the pay zone thickness;
(b) the evolution of fracture gradients;
(c) the nature of rock integrity during drilling; and
(d) the requirement of compatible drilling muds – in a carbonate reservoir?
4. To what extent, facilities engineer will be able to assess
(a) whether, the production is going to be oil, gas and/or water;
(b) the evolution of production rates; and
(c) the nature of produced fluid properties – in a carbonate reservoir?
Suresh Kumar Govindarajan
https://home.iitm.ac.in/gskumar/
https://iitm.irins.org/profile/61643
Перевод плохой, но понятно, что ответы на ваши вопросы будут в проектной документации на разработку месторождения, а он, проект, будет составлен только на основе выполненного объёма сейсмических, геофизических и гидрологических исследований. И главное будет всё рано на основе данных, полученных при бурении и испытаниях пластов при бурении разведочной сетки скважин.
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