Structural Trap 1 : A combination of a formation structure feature such as a fault with a sealing mechanism that forms a place where oil accumulates or is "trapped"
George E. King Engineering, 5000 Oilfield Terms: A Glossary of Petroleum Engineering Terms, Abbreviations and Acronyms, US 2010. http://gekengineering.com/Downloads/Free_Downloads /Glossary_of_Petroleum_Engineering_Terms_25_August _2010.pdf, (Oil - Amer) {593}