Since the 1980s, state funding of hydrometric networks has declined dramatically in many countries. As a result, national hydrological services are unable to collect the information necessary for reliable water resources assessment at a time when climate change, increasing demand for water, and pollution are placing unprecedented pressures on water resources.
Schlumberger Water Services (SWS) offers the wide range of skills necessary to assist governments to develop their capacity in hydrometric data collection and in water resource and water quality assessment.
Title - Capilano, Seymour and Coquitlam Watersheds water source capacity study Location - Canada Client - Greater Vancouver Regional District Description - SWS was commissioned to assess the water supply capacity of a system of linked lakes and reservoirs that supply Vancouver and to determine their current and potential capacity in the light of increasing demands and climate change. SWS developed a spreadsheet-based multiple reservoir simulation model and assessed the reliability of the reservoir system under a range of hydraulic constraints and potential climate changes.
Title - Monturaqui aquifer investigation and development Location - Chile Client - Minera Escondida Ltda Description - SWS was retained to manage and implement a comprehensive investigation of the groundwater resources of a recently discovered aquifer in northern Chile's arid Region II. The scope of the investigation included geophysical surveys, exploration drilling, hydrogeological testing, numerical groundwater modeling, optimization of well-field design, supervision of construction, and environmental impact assessment. SWS is now managing an aquifer monitoring program.
Title - Water resources assessment for the Seven Towns water supply project Location - Guinea Client - Ministère des Ressources Naturelles, de l'Energie et de l'Environnement, Funding Islamic Development Bank Description - SWS evaluated the water resources for three storage reservoirs for supply to the towns of Labé, Koundara, and Dinguiraye. Rainfall-runoff modeling was used to generate historical inflow sequences. The reservoir storage capacities necessary to maintain supplies through the 1:50-year drought were estimated by analyzing behavioral storage-yield and making allowances for sedimentation and climate change. Design floods were estimated using a number of techniques for dam spillway design.