Hölscher Solution_#03
Whether for water utilities, mineral water producers, or industrial applications, we secure water supplies through advanced well drilling. With more than 30 years of experience and 10,000 wells drilled, we excel in even the most complex geological conditions.
Custom wells for your water supply
We construct wells and well systems for municipal water supplies, mineral water producers and commercial use. Meeting the specific needs of each customer is always our top priority. We safely conduct groundwater exploration drilling, investigative drilling for water extraction and geothermal drilling. We work closely with our clients to select the most economical drilling method for each project.
Services
Exploratory drilling and soil sampling
We conduct exploratory drilling to assess geological conditions. We extract undisturbed soil samples, which are crucial for the optimal design of well structures.
Construction of wells for various purposes
Our expertise includes the construction of wells for drinking water, mineral water, and process water extraction. Additionally, we construct wells for geothermal systems including classic water-to-water systems and ATES.
Hölscher as general contractor for well drilling
We deliver turnkey complete systems, including in-house control technology, from a single source. Our extensive range of services enables us to successfully meet diverse requirements in well drilling and management. From planning and drilling to the installation of completion structures.
Deep drilling technology
We install casing pipes for deep drilling, ensuring the stability of the borehole and preventing collapse. With precise technology, we ensure efficient and reliable access to deeper rock layers.
Well rehabilitation and decommissioning
We have extensive experience in rehabilitating well structures, including completion structures, pumping equipment, valve systems, and control technology. Our team expertly handles well decommissioning and develops tailored concepts in close coordination with regulatory authorities. This also includes well decommissioning by over-drilling old wells.
Reinfiltration
When construction takes place below the groundwater level, temporary lowering is required. If the extracted groundwater is discharged into surface waters or the sewer system, it is permanently removed from the natural groundwater cycle. Using our advanced technology, we return the extracted water back to where it belongs.
Pumping tests
Our experts conduct pumping tests, providing real-time data access to clients throughout the process.
Well completion structures
Completion structures prevent surface water from entering the well, protecting groundwater from contamination and simplifying maintenance. Depending on the well type, we offer various solutions, including reinforced concrete shafts, insulated polyester housings, stainless steel shafts, and reinforced concrete compartments with thermal insulation. Our services also cover fittings, valves, pumping equipment, and control technology.
Facts and figures
Our well service
Highly specialised service crews
Our highly specialised crews provide extensive expertise and modern equipment to ensure the successful execution of your well drilling projects.
Well inspection
We conduct comprehensive well inspections to assess their condition and establish the basis for further planning measures.
Well restoration
We offer complete solutions for well restoration, including the installation of fibreglass (GRP) repair sleeves, insertion pipes, and the subsequent sealing of leaking annular spaces.
Well regeneration
Our experts apply tailored regeneration methods specific to each case. This includes mechanical, hydromechanical, or chemical processes.
Renewal of completion structures and construction of valve systems
Our team designs, supplies, and installs customised solutions based on your needs and specifications, including reinforced concrete shafts, stainless steel shafts, above-ground reinforced concrete enclosures, insulated polyester housings, steel containers, and more. We also handle the associated valve systems.
Our drilling technology
Rotary drilling technology
We operate 3 rotary drilling rigs designed for direct and large-diameter reverse circulation drilling with hook loads of 63 tons. These rigs handle drilling tasks up to 1200 mm in diameter and depths exceeding 1000 meters.
Universal rotary drilling rigs
We have 11 universal rotary drilling rigs, versatile all-purpose machines capable of casing drilling with diameters from 219 mm to 521 mm, as well as direct and reverse circulation drilling with hook loads from 5 to 30 tons. With these rigs, we can perform drillings up to approximately 600 meters deep, including core sampling and specialised sample extraction.
Cable percussion drilling rig with casing oscillator
Our fleet includes 19 cable percussion drilling rig with casing oscillators, suitable for cased drilling with diameters ranging from 600 mm to 2000 mm. These systems enable drilling to depths of about 120 meters. With our diverse fleet of drilling rigs, we can tackle a wide range of drilling tasks with precision and efficiency.
Good reasons for Hölscher
Just a few reasons why our customers enjoy working with us.
Extensive experience in executing large-scale projects
Development of customised solutions for your construction project
Expert competence teams at every branch
In-house equipment fleet
Equipment available at central warehouses and local branches
Continuous 24/7 monitoring of water levels for targeted pump control
Water analysis and sustainable water treatment
Holistic approach
For the construction industry, municipalities, and industrial companies, we are the national and international partner of choice for demanding groundwater projects. Our company combines in-depth expertise, decades of experience, and technical excellence in groundwater management to provide safe, sustainable, and intelligently connected solutions in the areas of groundwater management, water treatment, well drilling, geothermal energy, reinfiltration and monitoring. We employ both proven methods and proprietary, patented procedures. Our services cover all necessary steps – from consultation and planning to developing customised solutions and professional implementation with computer-controlled monitoring and documentation.
Hölscher projects
Case studies on well construction
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