Think Water Zimbabwe is one of the Leading Borehole Drilling Companies in Zimbabwe.
Established in 2019, Think Water Zimbabwe owns four state-of-the-art PRD drilling rigs and compressors that can drill up to a depth of 800m, making Think Water Zimbabwe one of the only Zimbabwean companies that can drill the deepest.
Having been in existence for four years, we have extensive knowledge in the field of borehole drilling and understand the requirements of specific customers as well as projects. The company has been involved in a number of projects involving evaluation, baseline studies, feasibility studies, environmental impact assessment, project design and proposal development, community needs assessment, etc.
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| The Leading and The Best Borehole Drilling Companies in Zimbabwe (Updated 2022) |
Currently, the company employs five drillers and two technical assistants on each rig with over ten years of combined experience in drilling and maintenance of the machines.
The Company has a total of 17 employees, who form part of the drilling crew in their respective units. For pump and recovery tests, the company has 12 pumps for use on-site, including the necessary equipment to lower and lift submersible pumps.
Our Services:
1. Geological Survey: After the contract has been formalized, our technical team will visit the site along with geologists to identify the best place to carry out the drilling process.2. Mobilization: The drilling rig accompanied by a support truck will reach the site. Based on the soil and rock formation conditions, we would take approximately 3 hours to prepare for the drilling process.
3. Borehole Drilling: The drilling is carried out by using the “Down-The-Hole” technology. This system works by using highly compressed air built within our drilling rig. The size of the hole can vary depending on the requirement of the client. As the drilling process continues, geological rock samples are taken at 2-meter intervals. Struck and water rest levels are constantly recorded. This process enables us to estimate the yield of individual aquifers encountered.
4. Borehole Casing: Once the borehole has been drilled, it must be lined with either steel or UPVC casing. The casing process keeps the Borehole open and protects the earth, similar to the efforts to protect groundwater. The hard metal casing shores up the borehole and extends through both the verticality and the horizontal drilling phases, assuring the long-term integrity of the borehole from end to end. In addition to providing stabilization and keeping the sides of the borehole from caving in on themselves, the casing protects the Borehole stream.
5. Borehole Development: Once the screen, pack, seals, and backfill have been installed, the Borehole is developed. This development aims at repairing the damage done to the aquifer during the course of drilling by removing clays and other additives from the borehole.
This also alters the physical characteristics of the aquifer around the screen and removes fine particles. The use of over-pumping as a means of development is not advocated since it only increases permeability in zones that are already permeable. Instead, we recommend mechanical surging with a plunger or the use of air or water jetting which physically agitates the gravel pack and adjacent aquifer material. This is an extremely efficient method of developing and cleaning Boreholes.
6. Borehole Testing: After development and preliminary tests, a long-duration Borehole test is carried out. Boreholes tests have to be carried out on all newly-completed Boreholes, because not only does this give an indication of the success of the drilling, design and development, but it also yields formation on aquifer parameters which are vital to the hydrogeologist.
A Borehole test consists of pumping Boreholes from a measured static water level (SWL) at a known or measured yield, and recording the rate and pattern by which the water level within the Borehole changes. Once a dynamic water level (DWL) is reached, the rate of inflow to the Borehole equals the rate of pumping. Today, it is a common practice to carry out a ‘step drawdown test’, in which the yield is increased stepwise. Each step is continued until hydraulic equilibrium is reached after which the yield is increased by 50 to 100%.
6. Borehole Testing: After development and preliminary tests, a long-duration Borehole test is carried out. Boreholes tests have to be carried out on all newly-completed Boreholes, because not only does this give an indication of the success of the drilling, design and development, but it also yields formation on aquifer parameters which are vital to the hydrogeologist.
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| The Leading Borehole Drilling Companies in Zimbabwe (Updated 2022) |
Toward the end of the test, a water sample of 2 litres is collected for chemical analysis. The duration of the test is 24 hours, with a further 8 hours for a recovery test (during which the rate of recovery to SWL I recorded). The results of the test enable the hydrogeologist to calculate the best pumping rate, the installation depth, and the drawdown for a given discharge rate.
7. Water Quality Test Think Water Zimbabwe has contracted well-trained chemists that conduct water quality tests in the quest of knowing the status of total coliform bacteria, nitrates, total dissolved solids, and pH levels. When a client suspects other contaminants, Think Water Zimbabwe also tests for such.
7. Water Quality Test Think Water Zimbabwe has contracted well-trained chemists that conduct water quality tests in the quest of knowing the status of total coliform bacteria, nitrates, total dissolved solids, and pH levels. When a client suspects other contaminants, Think Water Zimbabwe also tests for such.
8. Motorized Pump Installation: Depending on the Borehole testing report, Think Water Zimbabwe installs motorized submersible pumps through its sister company; Think Water Zimbabwe irrigation and Energy Services which specializes in pumps.
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For All Your Borehole Drilling Services in ZimbabweContact Us:
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All Think Water members around the world are knowledgeable, passionate and dedicated to delivering the best solution for your water project or water management needs.
We specialise in water siting, borehole drilling, irrigation, pumping and filtration system design, supply, installation and servicing, for a magnitude of customers ranging from residential to commercial and industrial to agricultural.
Think Water is a global brand, owned by experts and actively involved in bringing water solutions to the Zimbabwe community.
Think Water is backed by the leading water and solar solutions companies in and around Zimbabwe with buying power and strong water systems networks. This results in competitive prices and expert industry knowledge.
Zimbabwe: +263 719 187878 (Think Water Zimbabwe)
