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Modelling of formation damage due to mud filtrate invasion in a radial flow system
Windartoa, Gunawan A.Y.b, Sukarno P.b, Soewono E.b
a Department of Mathematics, Faculty of Science and Technology, Universitas Airlangga, Indonesia
b Industrial and Financial Mathematics Group, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]This paper is a sequel of our previous paper that has addressed on mud filtrate invasion into oil formation in a linear flow system. As a natural extension, here we present a mathematical model to estimate skin factor due to mud filtrate invasion into oil formation in a radial flow system. In the model, solid particle invasion and irreducible water saturation are taken into account. The present model consists of mud cake thickness model, flow rate of mud filtrate into oil formation, mud filtrate concentration, and penetration depth of mud filtrate. The estimation for reduction of oil effective permeability and skin factor near wellbore are also presented. The model is simulated and verified using three vertical well data cited from the literature. The estimation results of oil effective permeability reduction and skin factor from the model are in agreement with the data. Beside that, for the case of static filtration in radial flow, we find a critical mud cake thickness above which the rate change of thickness is increasing. © 2012 Elsevier B.V.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Effective permeability,Formation damage,Irreducible water saturation,Mud cake thickness,Mud filtrate,Mud-filtrate invasion,Skin factors,Vertical wells[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Formation damage,Mathematical model,Mud filtrate,Radial flow,Skin factor,Vertical wells[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]Parts of this research are funded by Riset ITB 2008. W.N. acknowledges support from DIKTI through BPPS scholarship and Hibah Disertasi Doktor during the preparation of the manuscript. The authors also thank the Research Consortium on Oil and Gas Pipeline Network (RC-OPPINET) for supporting the research.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1016/j.petrol.2012.11.003[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]