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Geothermal drilling: An overview
Marbun B.a, Zulkhifly S.a, Hariz I.a, Khairina D.a
a Bandung Inst. Technol., 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]Drilling technology in geothermal fields adopts techniques from oil and gas drilling technology. Most geothermal wells are designed following the same principles as those used in the oil and gas industry. Some simple comparisons between wells used for geothermal applications with those for oil or gas production show that the former need to be larger bore, deeper and are operating longer. Although geothermal reservoirs and oil/gas reservoirs are similar, the facts show that there are several differences that cannot be ignored. The main challenges associated with drilling geothermal wells are related mostly to the hardness of igneous and metamorphic rock being drilled, rock that is not commonly found in oil/gas well drilling, and the unusually high temperature of the formation. This paper summarizes the drilling fluid, cement, casing, drillstring, all commonly used in geothermal drilling. Formerly, defining main characteristics of geothermal field was also important in defining those differences, and applying a different design to geothermal drilling in order to minimize adverse impacts, such as casing failures, cement failures, drilling fluid failures, etc., caused by high temperatures. Casing design will be discussed more thoroughly due to many casing failure problems in the geothermal industry as an oil/gas principal. Finally, geothermal drilling in some countries will be updated in this paper, in order to share news and suggestions about our geothermal industry.[/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][/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]