Hi, my first hint is the fourth edition of the International Seminar on Oilfield Water Management. It's a successful event that joins people form different area of interest and countries.
Event: 4th International Seminar on Oilfield Water Management
Organized by SPE Brazil Section and IBP (Brazilian Institute of Petroleum, Gas and Renewable Energy)
Country: Brazil City: Rio de Janeiro
Date: August, 28-30 2013
Event web site www.4isowm.com.br