Water Management for Mines

8/9/2019 Water Management for Mines

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Water Management for MinesTechnology and Solutions


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HydroW

orkFlow

Groundwater - a priceless resource

Groundwater is essential for life; it provides

drinking water for human consumption,

sustains ecosystems, irrigates drought-stricken

farms, and supports modern industry. However,

global population growth and urban expansion

are placing greater and greater demand on

groundwater resources and amplifying the

need for sustainable groundwater resource

management and planning.

Schlumberger

Schlumberger is the worlds leading supplier

of technology and services to support the

reservoir life cycle, from exploration to

production enhancement. Founded in 1927,

today the company employs over 64,000

people worldwide.

Since its inception, Schlumberger has been

inventing and deploying technologies to

characterize subsurface environments and

assess, quantify, and access valuable deep

energy resources. Our high-resolution logging,surface seismic imaging, geologic modeling,

simulation programs, and data management

technologies transform critical information into

knowledge for improved decision making.

Schlumberger has focused on leveraging

assets to deliver solutions that improve

customer performance, maximize productivity,

and minimize risk for more than 80 years.

Schlumberger Water Services

Today, Schlumberger Water Services is

leveraging technologies developed for the

oilfield to further water resource management.

Using proven subsurface reservoir evaluation

techniques, our dedicated team of engineers,

geophysicists, hydrogeologists, and technical

specialists provide comprehensive

assessments of aquifer systemsincluding the

viability for meeting future water demands.

Schlumberger Water Services provides clients

with the decision-making framework for

addressing short-term and long-term water

challenges. Under even the most challenging

conditions, our solutions minimize uncertainty

and reduce risk.

Integrated SolutionsSchlumberger Water Services provides

solutions designed to meet business needs.

Our strength in integrating optimal field

technologies with data management and

modeling tools helps us to support our clientsthrough the entire life of their projects.

Our integrated projects include:

Groundwater resources management

Aquifer storage and recovery (ASR)

Coastal zone groundwater control

Water solutions for mines

Environmental site solutions

Groundwater monitoring networks

HydroWorkFlow*

HydroWorkFlow, Schlumberger Water

Services' project workflow, brings information,

people and processes together to facilitate

managing the groundwater lifecycle from

exploration to operation deployment and

sustainable utilization.

Site assessmentCollection, assessment and analysis of

historical and current site data

GIS and environmental data management

Data integration, mapping of spatial and

temporal trends

Aquifer characterizationGeophysical logging and interpretations,

hydraulic testing and analysis

Groundwater monitoring

Network design, multilevel well systems,

instrumentation, data acquisition

Geologic modeling

Conceptual geologic and hydrogeologic

modeling, uncertainty analysis

Analysis and simulationGroundwater flow and transport modeling,

geochemical analysis, enhanced visualization

Systems integration and decision support

Integrated data reporting, surveillance,

diagnostics and communication

Corporate Overview

Together we can secure the

worlds groundwater resources

Schlumberger Water Services specializes inassessing, developing and managing groundwater

resources using the most powerful and cost-effective technologies available today

Optimizing watersupplies through

technology and

industry

expertise


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Our innovative technologies

minimize uncertainty

Water Management for Mines

Too Much Water? Too Little Water?

Water is an integral part of any mine operation.

It cools drilling equipment, separates ore from

rock, and transports slurry and waste material.

However, whether operating an open pit or

underground mine, excessive or moderate water

supplies can adversely affect the mining process

or impact the environment. Meeting ore

production targets requires mitigating impacts

and implementing comprehensive water

management practices.

Schlumberger Water Services is at the forefront

of integrated water management for mines. We

possess both the knowledge and experience in

subsurface characterization, hydrogeologic

modeling, groundwater monitoring and

information management necessary to isolate

water sources and estimate the quantity of both

surface water and groundwater. Schlumberger

technologies are optimally designed to help you

improve efficiencies throughout the life-of-mine.

The Schlumberger Water Services team of

engineers, geochemists, geophysicists, and

hydrogeologists are qualified to apply advanced

technologies for your unique requirements.

Each technology is industry-tested to meet the

rigorous demands of any mine operation.

Our integrated solutions for mines include:

Subsurface characterization

Integrated water planning Water supply quantification

Dewatering system design

Environmental site solutions

Acid mine drainage

Contaminant fate and migration

Tailing dam evaluation

Geochemical evolution assessment

Reactive transport simulation

We will work with you to develop engineered

solutions to manage water, helping you to

maximize ore extraction and processing.

Our multidisciplinary team can assist you to:

Collect, compile, and analyze hydrogeologic

data to characterize your mine site

Develop an understanding of the subsurface

flow regime in relation to your mining

operations

Develop groundwater models to assess

possible safety issues

Optimize dewatering well networks

Install long-term monitoring wells tomeasure water levels and water quality

Complete geochemical modeling to address

water quality issues

Provide real-time data access, telemetry and

operations control

Estimate the impacts from mine tailings

Manage all water data and compliance

reporting

Trust the experts at Schlumberger Water

Services to lead your project and provide

accurate results throughout the life of your

mining operation.

Our integrated water solutions support all stages of a mining operation

Surface water/groundwaterinteractions used to assess

potential off-site impacts

AquaChem* for aqueousgeochemical analysis of water

quality during life-of-mine

Diver* groundwater dataloggers offerlong-term monitoring of water levels,

temperature, and conductivity

HydroManager* informationmanagement systems offer centralized

access to water management data

Westbay System* for reliable,discrete, long-term sampling of

water quality parametersHydroGeo Analyst*, Petrel*for developing geologic and

hydrogeologic conceptual modelsEclipse*, Visual MODFLOW*,

transport simulator estimates

flow and mass transport

Reda* submersible or horizontalpumps offer maximum pumping

for dewatering or water supply

Westbay System* for monitoring porepressure at multiple depths to support

slope stability

AquiferTest* for estimating thehydraulic properties of aquifers

and aquitards


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Water SupplyService Highlights:

Site characterization and assessment

Geographic and resource mapping (satellite imagery and GIS)

Surface water assessment and mapping

Comprehensive data acquisition

Aquifer testing and numerical interpretation of pumping tests

Geophysical and hydrogeological characterization

Water quality characterization and mapping

ASR feasibility assessment and implementation

Well field development and installation of monitoring systems

Water budget development

Permit application support

Predictive modeling

Mining projects require a comprehensive assessment of available water

sources and a complete evaluation of short-term and long-term water

needs. Insufficient water supplies limit the production capacity of the mine

and impact production and revenue targets. Surface water sources, while

readily accessible, are often unpredictable and dependent on climatic

conditions. Groundwater sources, while more difficult to access, can

provide a consistent and predictable supply of water. In some cases,

neither source is reliable throughout the year, resulting in the need for

engineered systems such as Aquifer Storage and Recovery (ASR).

Leading-edge geophysical instrumentation, hydraulic pumping tests, and

advanced modeling programs offer a highly accurate account of the

natural or artificial water budgets, helping to minimize uncertainty and

reduce risks. Continuous monitoring of water supplies address the

dynamic needs of the mining operation to achieve mine production

objectives. Our team of professionals are experienced at assessing and

developing a complete water supply plan, and deploying the optimal

technologies for the project.

Integrated Water SolutionsService Highlights:

Aquifer characterization and advanced geophysical methods

Monitoring network design and data acquisition systems

Customizable data acquisition, analysis and management systems

Planning and installation of pumping and monitoring well systems

GIS, mapping and evaluation of water quality

Water supply and demand forecasting

Unsaturated/saturated flow and transport modeling

Evaluation of surface water and groundwater interactions

Design of underground recharge and storage systems

Long-term monitoring and compliance reporting

Our Mining Services

Optimizing your

water supply to

support operational

needs

Water management and acid mine drainage Multilevel monitoring well completion Groundwater recharge assessment

Merging water management strategies with

technology and engineering for mining projects

Water affects virtually all stages of the life-of-mine. The most efficientand cost-effective mine operation works from a comprehensive water

management plan that accounts for all possible water uses and includes

mitigation measures to proactively limit risks.

Schlumberger Water Services develops fully-integrated water solutions

that address every aspect of your water management needs: from expert

consulting services; to equipment deployment; to data collection, storage

and analysis; to final decision-making. We apply proven technology and

expert experience to each phase of your mining project.

Our field services include high-resolution geophysical logging, multilevel

well completions, and the deployment of monitoring instrumentation to

characterize the hydraulic properties of the groundwater regime.Automated, field-scale data acquisition systems, combined with our

customizable information management systems, provide our teams with

accurate, real-time data for optimizing dewatering systems, developing

water distribution plans and preparing short-term and long-term water

management strategies.


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Mine DewateringLong-term sustainability of the mine requires continuous management ofwater, including removing water for dry-foot conditions. Excavating

mineral deposits increases the chances of groundwater ponding at ground

surface or seeping into underground tunnels. Though important for mine

processing, excessive water can create undesirable site conditions,

impeding ore production or causing unsafe working environments.

Our team works directly with the mine geologist to develop dewatering

systems that evolve with the life-of-mine. Each system is designed to

remove the appropriate amount of water by accurately characterizing the

groundwater flow regime and producing site-specific water budgets.

Deployment of high-lift pumps optimized to run under even the most

challenging conditions minimize the influx of water into the mine.

Schlumberger Water Services excels at developing comprehensive watermanagement strategies that minimize the impact of water on mine

operations.

Service Highlights:

Hydrogeological characterization

Assessing hydraulic properties of the aquifer

Well field planning and design

Monitoring well installation and deployment of instrumentation

Data acquisition, analysis and management

Predictive modeling to optimize mine dewatering systems

Dewatering system design and operation

Waste water impoundment and re-use planning

Mine tailings seepage interception and control


Environmental SolutionsWaste products derived from extracting and processing minerals are

primary factors that can impact the environment. Surface water and

groundwater containing residual chemicals and oxidized minerals pose the

most risk to the environment and human health. Acidic waters impede

plant growth, impact aquatic organisms and inhibit use for drinking or

irrigation. Government permitting and regulations require strict adherence

to environmental policy throughout the lifecycle of any mine site.

Schlumberger Water Services works directly with mining companies to

meet regulatory reporting requirements and mitigate environmental issues.Our long-term groundwater monitoring systems continuously collect data

to record water levels and water quality throughout the life-of-mine. Field

data is analyzed, managed and reported according to regulatory

specifications through a comprehensive information management system.

Potential off-site impacts are identified, investigated, and evaluated using

sophisticated three dimensional groundwater flow and transport models

and rigorous aqueous geochemical analysis.

Service Highlights:

Site characterization

Environmental impact assessment

Monitoring network design and installation

Source characterization and water quality mapping

Reactive transport and flow modeling

Geochemical evolution assessment

Optimization of remediation systems

Acid rock drainage and metals leaching

Mine tailings discharge control and mitigation


Integrated solutions

designed to minimize

impacts to health

and environment

Dewatering systems

engineered to

accelerate your mine

site operations

Excess water and operational challenges Optimizing mine dewater systems Modeling drawdown from dewatering well

Pyrite oxidation and water quality issues Human impacts from mine operations Mitigation of acid rock drainage


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www.water.slb.comJune 2006 Schlumberger *Mark of Schlumberger

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Water Management for Mines