Integrated Formation Evaluation Of Triassic Jilh Dolomite Reservoir, acase study from Sabriyah Field North Kuwait

With overstraining of conventional reservoir,the exploratory efforts are focused on unconventional reservoirs in frontier areas.The Jilh Dolomite,a tight reservoir occurring in the middle part of Late to Middle Triassic Jilh Formation,is investigated in Sabiriyah area of North Kuwait for its hydrocarbon prospectivity.The Jilh Dolomite had shown hydrocarbon potential on logs but the testing results did not match the conventional log interpretation.This has adversely impacted the hydrocarbon assessment of this reservoir,thus affecting reserve accretion targets.The re-evaluation of hydrocarbon potentials of Jilh Dolomite has been carried out utilizing all the relevant data particularly well logs,well testing,mudlog reports,drilling reports and core reports.The objectives of the petrophysical interpretation is fresh evaluation of intervals with anomalous testing results to confirm the presence of potential hydrocarbon bearing intervals in the non-conventional reservoir Jilh Dolomite.A clear cut workflow involving synergistic interpretation of different datasets has been evolved and lithological and flow properties and saturation models have been prepared.The petrophysical evaluation results show that there are possibilities of having hydrocarbons in the top part of the reservoir in North Kuwait.