RIASSUNTO
Abstract
Southwestern Energy (SWN) is committed to offsetting our fresh water footprint by reducing fresh water use and replenishing any fresh water that is used, barrel for barrel, through conservation projects, i.e., "Fresh water Neutral". In 2013, thecompany launched the Energy Conserving Water (ECH2O®) initiative with the goal of becoming fresh water neutral in all operations within three years. SWN achieved this status in 2016 within each of the operating divisions across the company, thus meeting the program objective. This paper presents the challenges encountered and offers lessons learned.
The first step in the program was to create a small corporate team to investigate all aspects of the operational water life cycle, seeking to optimize fresh water use at similar economic returns compared with other projects. Successfully refining the approach to water management involved several key elements: 1) commitment from company leadership and support across all operations, 2) operational goals to progress the program, 3) accounting for all water used, 4) modification of completion designs, 5) increased use of alternative, non-fresh water, and 6) supporting research in groundwater protection and water treatment technologies.
Even though the process of optimizing water management aids in reducing fresh water needs, there continues to be a critical demand for the use of fresh water in operations. To offset this use, SWN has participated in conservation projects located in each operational area. The conservation projects are selected for the fresh water benefit they generate for the surrounding environment.
Becomingfresh water neutral in each operational division required several changes and improvements in everyday work practices. Over time, it also changed the mindset of water management across the company. Today fresh water use is viewed differently and there is an impetus to use alternative sources whenever economically and operationally feasible. Also, the conservation projects SWN has completed have created a sense of pride in our company's environmental approach and strengthened bonds with the communities where we work.
The continuing challenge is to remain fresh water neutral, while dealing with short-term changes that occur in operational pace and activity levels.