Development of innovative water management
Hydraulic fracturing in shale gas formations consumes several thousand cubic meters of water per well. The fracturing fluid typically consists of about 98% water and sand, and 2% chemical additives to influence e.g. surface activity and viscosity of the water. The chemical additives include toxic, allergenic, mutagenic, and carcinogenic substances. Between 20% and 50% of the water used for fraccing gas wells returns to the surface. This water must be collected and properly disposed of or removed by truck or pipe for off-site treatment.
Phase 1 – To prepare a preliminary selection of appropriate technologies for the treatment and reuse of flow back water from the extraction of unconventional gas.
Phase 2 – Development of a conceptual design for one or more promising technologies.
Phase 3 – Pilot research on a drilling location with a carefully chosen technology for the treatment and reuse of flow back water from unconventional gas extraction.
Phase 4 – (Long term: 10-15 years) implementation of the investigated technology on full scale for the treatment of flow back water from the extraction of unconventional gas.