Latch 2 : One of several a downhole coupling mechanisms that hold the string to a predetermined load before releasing. Useful for confirming depth and attachment when the string is snapped into or out of a latch
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}