Injection Pattern 2 : The spacing and pattern of wells in an enhanced recovery project. The more common injection patterns include line drive, five spot, seven spot, nine spot, and peripheral. (ITOGP)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}