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Effect of ethylene oxide groups on the performance of anionic extended surfactants in light oil reservoir
Marhaendrajana T.a, Fauzi I.a, Swadesi B.a
a Petroleum Engineering, Institute Technology 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]© Research India Publications.This paper investigates the role of Ethylene Oxide (EO) Groups in the performance of anionic extended surfactant, where Propylene Oxide (PO) groups is absent. Anionic extended surfactant (AES) used in this study is ethoxy carboxylate which has variation on intermediate polar (EO 3, 5, 7, 9) and hydrophobic chain between C11-C13. AES was tested with several laboratory testing using a very light oil sample taken from Tempino Field, Indonesia, that has API gravity 42 and viscosity 0.9 cP. While reservoir brine salinity is 8670 ppm, the surfactants were also tested for wide range of salinity, i.e. 500 ppm-30000 ppm of monovalent ion Na+ and 500 ppm-10000 ppm of divalent ion Ca2+. With the addition of EO groups, the polarity difference between the hydrophilic and hydrophobic group will be smoothed, so the interaction of water and oil at the interface will be much longer and also the formation of micro emulsions can be easily done. The addition of EO groups is also need to be exercised to obtain the optimum one to be compatible with the fluids sample. Based on laboratory test results, AES with EO number between 5 and 7 is optimum showing good performance at Tempino light oil sample by giving low IFT (~10-3) in the salinity range of study with monovalent ion Na+ and divalent ion Ca2+ present, good aqueous stability, good thermal stability (at 68°C for 3 months). Furthermore, AES with EO number 7 yields potentially good incremental oil recovery on core flooding with relatively quick response.[/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][/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]Anionic Extended Surfactant,Ethoxy carboxylate,Light oil,Surfactant flooding[/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][/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][/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]