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Case study of hydraulic fracturing in an offshore carbonate oil reservoir

Petroleum Research 2022年第4期7卷 419-429页

作者： Mohammad Azad Mojtaba Ghaedi Amir Farasat hadi parvizi Hamed Aghaei Department of Petroleum Engineering School of Chemical and Petroleum EngineeringShiraz UniversityIran Iranian Offshore Oil Company TehranIran Petroxin Ltd LondonUnited Kingdom

Maximizing petroleum production while efficiently managing the operational costs is the oil and gas industry's primary goal which requires innovative engineering approaches and production-enhancing treatments such as hydraulic fracturing(HF).During the HF process,the injected fluid mixed with sands or proppants will create permanent fluid channels to drain more of the reservoir *** level of complexity and various constraints involved in real field treatments have made HF even more chal-lenging in layered carbonate reservoirs with the water drive mechanism.A prominent concern is the downward fracture growth to the oil/water contact zone that may cause unfavorable water cut *** fracture height confinement criterion necessitates optimization of fracture dimension *** height development is mainly a function of in-situ stress conditions and stress magnitude differences between geologic *** cases with a water table at the proximity of the wellbore,fracture height directly affects the operational *** paper demonstrates a practical step-by-step approach towards the design of hydraulic fracturing treatment in an offshore carbonate oil *** modeling process involves optimization of the location,number,and conductivity of the proposed ***-jection of high viscosity fluid causes a bi-wing vertical planar fracture to propagate perpendicular to the direction of minimum horizontal stress in the strike-slip faulting *** of the induced hydraulic fractures are also impacted by the amount and type of ***,as with this case study,the magnitude of vertical stress is in the same range as the maximum horizontal stress;the fracture height growth is the limiting *** LGR method is used to define fractures in the dynamic reservoir model which has been built based on a complete set of data ranging from the analyses of logs,core samples,and seismic details,to perform production forecasts and economic ev

关键词： Hydraulic fracture design Carbonate reservoirs Proppant selection Economic analysis Reservoir modeling

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