EVENT DATE: Aug 01, 2016
We are a team which has the goal to help those, who really need it.
We want to drill wells with drinking water in places, where there is a shortage of it - with focus on the area of African Guinea. Our goal is to improve the social environment of the residents and to help preventing illnesses and epidemics often caused by the shortage of drinking water.
The long-term priority and mission is to secure sources of drinking water by sending drilling missions, which will drill wells with the help of the equipment brought by us and also to perform maintenance services, if necessary.
Our target is the development aid in the area of basic human needs, the long-term priority is to secure sources of drinking water. We also have experience from other areas like Haiti, where we have participated in 2013 on a similar project.
Project “DROP OF LIFE (KAPKA ŽIVOTA)“ is sponsored and is also an inseparable part of the civic association OliMali.
About the “DROP OF LIFE (KAPKA ŽIVOTA)“ project
Guinea is an African state where drinking water is inaccessible for several kilometers for most of the inhabitants. Children do not have the option to go to school, because they spend most of the time on the road to secure drinking water for the family, very often from a water source that is more than ten 10 kilometers away. Our goal is to drill as many wells as we can in this area. This will allow the children to return to school and the women to work. Often the problem isn’t that there is not enough water, but that there is not enough clean and drinking water. More than 1,8 million children die per year as a result of diarrhea sickness (e.g. sicknesses like cholera or dysentery) caused by drinking water shortage. This number is even higher than the number of deaths caused by HIV, AIDS and malaria combined.
We want to build and maintain wells with drinking water in Guinea (Guineé) by using a drilling platform.
These wells are meant for the local communities (villages, settlements) in the poorest areas and for the social and educational organizations (orphanages, schools, health centers). Our organization will sent 3-man drilling teams from the Czech Republic. We also want the locals to join us in this effort, so they can learn new things and gain life experience.
Why we want to do it and why is the project necessary?
A lot of children from the areas with drink water shortage have to bring water daily from distant water sources, therefore they don’t receive adequate education. Other times, women hold this function. Then they don’t have time for other – profitable – activity. The average distance which women in Africa must go to get water is six to ten kilometers, sometimes even more.
Our final vision is to establish a permanent Czech development mission in middle Africa. It will provide technical help, education and support development activities of locals until such time when the people become self-sufficient and will be able to continue the work on their own.
WHY DO PEOPLE IN AFRICA NOT DRILL THE WELLS BY THEMSELF?
- There is not an adverse geological subsoil in Africa – manually digging is impossible in most cases.
- The water is to find first in a great depth, the beds are disrupted or the subsoil is sandy. It is really hard to find some water there.
- The advantage of drilled wells is the exploratory well. We learn everything about the subsoil in detail, eventually we find out, if there is a fresh or briny water to find. The briny water can occur even several kilometers away from sea coast.
- The wells in mountainous regions are mostly thrust into rock. You can dig effectively only with a pneumatic hammer (drilling rig + compressor).
- If we get to hardly drilled rock, the procedure has to be changed. One of the most efficacious methods is to drill with max bit (drilling + curbing at the same time).
- At the locations, where is possible to dig manually, the wells are already drilled.
- For the most settlements and communities it is impossible to accomplish such a financial and technical task.
HOW TO PROCEED WITH THE REALISATION OF A WELL?
- 1. We take the drilling rig off a vehicle, direct and seat the machine in working position – as horizontally as possible, with the help of a spirit level.
- 2. The drilling rig uses a rotary percussion mechanism intended for rock or shear zone subsoil. It also uses roller drills - x-bit pin drills or toothed drills without percussion mechanism for extreme hard subsoil.
- 3. The first meters are drilled by using a snail countersink up to harder subsoil which is able to hold a wall.
- 4. Into drilled meters we implement steel casing by spiral drilling. Casing prevents unstable upper rock falling into the drill hole.
- 5. We pull the helical rod and the driller out and replace it with a 5-inches pneumatic hammer with x-bit. Than we continue with drilling.
- 6. The whole so-called drilling shaft is rotating, the hammer is connected to the drilling machine with drill rods, which are addend gradually.
- 7. Drilling shaft´s genset supports the carriage´s vertical shog and the drill hammer´s rotation. Compressor enables hammer´s percussion and extruding of metals through the hollowing of the drilling rods to the surface.
- 8. If the drill hole closes or if we find unstable subsoil, e.g. shifting sand or stone ballast in a depth in which we are not able to use casing, then it is better to discontinue the drilling and move to another location.
- 9. Another risk poses dry or not efficient drill hole, the water source could also be salty or polluted from minerals.
- 10. If we find a water source, we flush the drill hole several times, pull out the tools and we can start to reamer the drill hole with plastic pipes, whereas we cut inflow canals in the very same position, in which the water inflow was detected. We also cut a spike-shaped inflow canal in the very bottom.
- 11. We strew the cased hole with broken stone ballast and construct a bentonic clay counter in approximately 1 meter depth to prevent rain-water leak and finally strew it with mould.
- 12. We assemble the boarding and blend in the screeding and seat the pump bottom end. After the screeding dries, we install the pump.
- 13. We present the finished pump to the community in the presence of mayor or development organization representative, in some cases also to a priest or pastor. The community will be then familiarized with the principles of ordinate usage.
ADVANTAGES OF A DRILLED WELL
- Much greater water inflow, than in a digged well (no water accumulation is needed).
- Stable inflow even during times of low rainfall.
- Collecting of quality subterranean water through perforated PVC-U pipes certified for drinking water.
- Proper separation of surface water.
- Easy well construction.
- Costs proportional to the result.
- Significantly less damage to the terrain that at a digged well.