Water is a vital resource that binds us all; it is our duty to protect it
Geophysical Survey & Groundwater Management
"We use suitable and effective geophysical methods to study subsurface conditions for locating and assessing groundwater
resources and making their sources sustainable."
Geophysical Surveys
Geophysical survey work is conducted to understand subsurface geology and feasibility at various locations by identifying zones favorable for drilling bore wells, considering both production and recharge purposes.
By Using Electrical Resistivity Principle (Background Methodology)
In the Schlumberger configuration, observations are made to obtain information on the variation of the physical field in the vertical section at a given location (VES – Vertical Electrical Sounding). The variation in the physical field is interpreted in terms of subsurface in homogeneities, including variations in lithology, as well as the quantity and quality of water. The electrical properties of most rocks primarily depend on the amount of water within them. Saturated rocks exhibit lower resistivity than unsaturated or dry rocks. The higher the porosity of a saturated rock, the lower its resistivity. The basis of making an electrical sounding is that the farther the potential measurement is taken from the current source, the deeper the probing will be.
By Using Very Low Frequency Electromagnetic Field
This surveying method utilizes the magnetic components of the electromagnetic field generated by long-distance radio transmitters in the VLF (Very Low Frequency) band, operating at 15-30 kHz. These transmitters, used for long-distance communication, generate a field that is locally affected by conductive structures on or beneath the surface, even when covered by thick overburden. The instrument measures the distortion of the radio signal and displays the results directly on a screen. Typically, more than one profile is required to determine whether a structure is a suitable drilling target. Additional parallel profiles are conducted to assess if the zone is wide enough to provide a good yield. Depending on the terrain, profiles are run in regular or irregular patterns.
- Purpose
- Identify underground water sources (aquifers) for borewell drilling or irrigation.
- Map mineral resources like oil, gas, or metal ores.
- Study geological features such as faults, bedrock, and soil layers.
- Assess sites for construction or infrastructure projects.
- Conduct archaeological investigations.
- Applications
- Locating suitable drilling spots for borewells.
- Finding groundwater or analyzing aquifers for water resource management.
- Site evaluations for construction, such as buildings, bridges, or tunnels.
- Exploration for natural resources or hazardous material studies.
Borewell Drilling
4and ½ 6 and ½
Borewell Drilling
A borewell is a narrow shaft drilled to access underground resources like water, petroleum, or gas. It is crucial for areas with limited surface water, supporting sustainable supply and aquifer recharge through rainwater. Borewells are also used in geotechnical, environmental, and geothermal applications, as well as underground storage.
Our Borewell Drilling Process
- Geo-hydrology Survey: We start with a thorough geo-hydrology survey to analyze the underground water table. This critical step helps us identify the best drilling location, ensuring efficient water extraction and minimizing potential drilling challenges.
- Precision Drilling: Using advanced drilling technology, we access water sources deep beneath the ground. Our expert team ensures minimal disruption to your property and precise drilling to reach the optimal water level.
In borewell drilling, the terms 4 ½ inch and 6 ½ inch refer to the diameters of the borewell. Here’s what they mean:
4 ½ Inch Borewell
- Typically used for domestic purposes.
- Has a smaller diameter, requiring less drilling time and cost.
- Suitable for hand pumps or small submersible pumps.
- Depth usually ranges between 100 to 600 feet, depending on groundwater availability.
6 ½ Inch Borewell
- Designed for agricultural, industrial, or large-scale water needs.
- Larger diameter allows for higher water output and installation of more powerful pumps.
- Can reach greater depths, often exceeding 1,000 feet.
- More expensive due to increased drilling effort and casing requirements.
Benefits of Borewell Drilling
Reliable Water Supply:
Borewells provide a consistent water source, essential for daily needs and agricultural activities, especially in water-scarce regions.
Water Conservation:
By tapping into underground water sources, borewells help conserve surface water and reduce dependency on external water supplies.
Increased Property Value: A functional borewell can enhance the value of your property by ensuring a reliable water supply.
Assessment
Aquifer Mapping
Understanding the distribution, capacity, and recharge rate of
aquifers to ensure efficient management.
Recharge & Conservation
Artificial Recharge
Techniques like rainwater harvesting, recharge wells and infiltration basins to increase the natural replenishment of groundwater.
Conservation Practices
Implementing water-saving technologies and encouraging efficient irrigation techniques, such as drip irrigation or sprinklers, to reduce water wastage.
Community Involvement
Stakeholder Engagement
Involving local communities, industries, and agricultural sectors in the decision-making process for groundwater management, ensuring that all parties are aware of and committed to sustainability efforts.
Local Groundwater Management Initiatives
Encouraging local-level groundwater management plans, particularly in rural or agricultural areas where groundwater is heavily relied upon.
Get in Touch—
Ready to explore borewell drilling for your home or community building or industry ? Contact Green Arch Associates today for a free consultation and detailed estimate.