Service Well 2 : A non-producing well used for injecting liquid or gas into the reservoir for enhanced recovery. Also a salt-water disposal well or a water supply well. (ITOGP)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}