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Water Resources

CEW has a multi-disciplinary team of scientists and engineers and equipped with state of the art water research facilities to conduct water resources management studies for water usage optimization in domestic, agricultural and industrial sectors. The group has a strong skill base across modelling and prediction, field investigation and experimentation, and data analytics. Specific areas include: Aquifer storage, Groundwater hydrology and surface-groundwater interaction, Hydrologic forecasting, Catchment water quality, Water resources optimization in offshore engineering, Flood and drought risk assessment using artificial intelligence techniques, Catchment flood management, Rainwater harvesting, Irrigation Water Management, Watershed management, Water conservation and management, Optimal allocation of water resources, Groundwater Modeling and simulation etc.

Pipe Flow Simulation on Offshore Pipeline for Hydrotesting

In long-distance pipelines conveying mixture of oil, gas, and water, prediction of multiphase flow transients is of great importance for design, operation, and maintenance of the pipelines. CEW has used dynamic pipeline simulation software in pipe design, pressure test conveying liquid, gas or both.

Mesh Generation using Gambit
Mesh Generation using Gambit
Velocity profile in a pipe using Fluent-ANSYS
Schematic representation of Offshore Pipeline Design

Water Resources section has expert researchers for CFD Analysis

Groundwater Level Measurement to Generate Water Table Map for Aquifer Characterization and Management

The Water Section creates a wide variety of spatial products from GIS datasets, and decision-support tools, data visualizations, and traditional static maps. Groundwater is generally portable at source, available in-situ and has low temporal variability which makes it the most important source of water for rural communities. However, groundwater occurrence in any region of the world is largely dependent on the nature and type of aquifer. This is because the nature and type of aquifer determines the quantity of groundwater that can be abstracted in a particular area to support her population. This is why it is extremely important to determine the groundwater potential of an area for sustainable development and management.

An Example of Piezometric map

Water Resources section has expert researchers for water level mapping

Pumping Test Evaluation for Well Efficiency and Aquifer Characterisation

Step Drawdown Test (STD) is commonly used to differentiate the laminar and turbulent components of total drawdown and to determine aquifer-loss and well-loss parameters. In an SDT, different series of constant discharges with incremental rates are conducted to obtain incremental drawdowns in the pumping well. Pumping well efficiency (if the well is properly developed and designed) and discharge–drawdown relationship can then be derived from the SDT.

Pumping Test Equipment and Data Examples
General Well Efficiency Criteria by Kurtulus et al. 2019

The aim of a constant discharge test (CDT) is to estimate hydraulic properties of an aquifer system such as transmissivity, hydraulic conductivity and storativity (storage coefficient).

An Example for Pumping Test Evaluation: Neuman (1975) solution and its derivative using AQUTESOLV
Constant Discharge Test Analysis using MATLAB HYTOOL
Constant Discharge Test Analysis using AquiferWİN32

Water Resources section at CEW has expert researchers for both SDT and CDT evaluation

Aquifer Storage and Recovery in Arid Areas

Aquifer Storage is a popular option to provide a reliable water supply. Injecting water into wells can prevent salt water intrusion into freshwater aquifers and control land subsidence. In contrast, ASR wells are used to store water in the ground and recover the stored water for drinking water supplies, irrigation, industrial needs, or ecosystem restoration projects.

Water Resources Section at CEW has expert researchers for Aquifer Storage and Recovery Projects

Groundwater Modeling for Water Resources Management

The most important thing to know about groundwater is that it provides us with the majority of the water we use for agricultural, domestic, municipal, and industrial uses. It is extremely important to characterize and understand the groundwater resources available to us in KSA. Groundwater Modeling is a first step tool designed to represent a simplified version of the field system (i.e. aquifer).

Groundwater Modeling using GW-Vistas

Water Resources section at CEW can build computer models that use numerical methods to characterize groundwater flow. MODFLOW models provide insight to determining sustainable aquifer yield and how to manage groundwater.

Artificial Intelligence (Ai) Research in Water Resources

Soft computing methods (also known as Artificial Intelligence) are playing a key role in the modelling of complex and nonlinear problems. The uncertainty associated with the data, the immense size of the data to deal with, the diversity of the data type and the associated scales are important factors to rely on unconventional mathematical tools such as soft computing.

General architecture of a multi-layer feedforward artificial neural network
Schematic representation of Soft Computing Methods

Water Resources section at CEW can build soft computing models for flood prediction, water level mapping, runoff prediction etc.

Water Quality Assessment in Arid Area

Water Resources section at CEW has the expertise to support clients with the following:

  • Monitoring and sampling plan development
  • Waste water, surface water, storm water, and ground water sampling
  • Sediment sampling
  • Discrete and continuous sampling
  • Laboratory analysis contracting
  • Database management and reporting
An Example for PIPER-diagram

Water Resources section at CEW has expert researhers for water chemistry evaluation.

Water Optimization Systems

One of the more difficult water challenges the oil and gas industry encounters is that produced and recovery of water must often be treated prior to disposal, reinjection or reuse. Because of the operating costs associated with most treatment systems can be high, the need for economical management of produced and recovery of water is especially critical.

Strategies for resource conservation
An Example of pinch diagram

Water Resources section at CEW has expert researhers for water optimization.

Hydrogeological Mapping

Hydrogeological maps bring basic geological information together with data on the hydraulic and hydrogeochemical characteristics of the rocks and their usefulness for groundwater supply.

An Example of geological mapping and cross section
An Example of Hydrogeological perviousness map

Water Resources section at CEW has expert researhers for hydrogeological mapping.

To know about our laboratory capabilities in Water Resources section, please visit Water Resources Laboratories