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A New Elastoplastic 3D Sand Production Model for Fractured Gas Fields
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作者 Hongtao Liu Hongtao Jing +3 位作者 Zhixiong Tu Shiyong Qin junhui wei Xiaotong Yu 《Fluid Dynamics & Materials Processing》 EI 2023年第7期1851-1862,共12页
Reservoirs characterized by high temperature,high-pressure,medium high cementation strength,low porosity,and low permeability,in general,are not affected by sand production issues.Since 2009,however,it is known that c... Reservoirs characterized by high temperature,high-pressure,medium high cementation strength,low porosity,and low permeability,in general,are not affected by sand production issues.Since 2009,however,it is known that cases exists where sand is present and may represent a significant technical problem(e.g.,the the Dina II condensate gas field).In the present study,the main factors affecting sand production in this type of reservoir are considered(mechanical properties,stress fields,production system,completion method and gas flow pattern changes during the production process).On this basis,a new liquid-solid coupled porous elasto-plastic 3D sand production model is introduced and validated through comparison with effective sand production data.The related prediction errors are found to be within 15%,which represents the necessary prerequisite for the utilization of such a model for the elaboration of sand prevention measures. 展开更多
关键词 Medium-high strength sand production mechanism fluid-solid coupling sand production prediction dynamic sand production pattern
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