JOHN WALSH, SPE, was appointed director of technical water treatment at Cetco Energy Services. Walsh will spearhead the ORCA (Objectivity through Root Cause Analysis) consulting services group, providing troubleshooting and technical services to its customers worldwide. As a technical expert, he will also provide in-house support to the technical group within Cetco worldwide. Walsh has nearly 30 years of experience in water treatment. Before joining the company, he held the position of global subject matter expert for water treating at Shell where he provided troubleshooting, operational, design, and water management support. Walsh is a member of the Editorial Board of SPE’s Oil and Gas Facilities magazine. He earned a PhD in chemical engineering from John Hopkins University.