Manual drilling of a well, method of launching with water

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SERGE57
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Manual drilling of a well, method of launching with water




by SERGE57 » 06/10/13, 21:16

Hello everyone.
Will my third attempt be the right one? I would like to make a new manual auger in order to drill a 10 m well. The 1st attempt (Kiloutou auger) and the 2nd (ram drilling) having failed due to too hard limestone or stone layer, I wish to drill according to the method of launching with mud (manual method, pdf in French of the foundation Practica [Jetting manual drilling PRACTICA FR] www.practicafoundation.nl ).
I start to gather the material for the injection head, but I do not understand the plan (at the end of the PDF). All the parts seem to be welded. Who could enlighten me?
The plan :
Image
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by chatelot16 » 06/10/13, 23:11

if there is hard limestone the jet of water can do nothing

there are only 2 solution: real drilling with a real drilling machine

or dig a real well wide enough to dig in with a jackhammer
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Re: Manual drilling of a well, method of launching with water




by hic » 06/10/13, 23:20

SERGE57 wrote:Hello everyone.
Will my third attempt be the right one? I would like to make a new manual auger in order to drill a 10 m well. The 1st attempt (Kiloutou auger) and the 2nd (ram drilling) having failed due to too hard limestone or stone layer, I wish to drill according to the method of launching with mud (manual method, pdf in French of the foundation Practica [Jetting manual drilling PRACTICA FR] www.practicafoundation.nl ).
I start to gather the material for the injection head, but I do not understand the plan (at the end of the PDF). All the parts seem to be welded. Who could enlighten me?
The plan :
Image

Hi SERGE57
The blister is a seal on the vertical tube,

the bent part fits on this joint inside the vertical tube
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by hic » 06/10/13, 23:48

chatelot16 wrote:if there is hard limestone the jet of water can do nothing

there are only 2 solution: real drilling with a real drilling machine

or dig a real well wide enough to dig in with a jackhammer

or acid drilling
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by Ahmed » 07/10/13, 13:32

I find it hard to follow you, Serge57, on the site, two methods are proposed and the one you describe applies to soils without rocks; these latter soils are indebted for the other method, using percussion ...
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by SERGE57 » 07/10/13, 13:35

Hello HIC and thank you for the clarification on the plan BUT I cannot understand how the lower tube is maintained to prevent it from coming off the upper tube. With the pressure of the water circulating in the tubes, the bearing can be ejected, it seems to me ...
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by chatelot16 » 07/10/13, 14:29

funny plan ??? it looks like they have found nothing better than solder to hold the bearing

it's wacky! a bearing permanently loses all its resistance with heat

even worse for the joint

drilling equipment wears out a lot: good mechanics are required with screwed assemblies to change the seal and the bearing when they are dead
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by hic » 07/10/13, 17:19

chatelot16 wrote:funny plan ??? it looks like they have found nothing better than solder to hold the bearing

it's wacky! a bearing permanently loses all its resistance with heat

even worse for the joint

drilling equipment wears out a lot: good mechanics are required with screwed assemblies to change the seal and the bearing when they are dead

AMHA, It is a flexible O-ring which is added later
and the brown piece is a flat joint
Image
The tubes fit together and the seal is force-compressed or tight (screwed?)
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Manual drilling of a well, method of launching with water




by SERGE57 » 07/10/13, 21:07

First of all a big thank you to everyone for your answers! So, in bulk:
- the acid to dissolve the limestone layer, I used it! Unfortunately, it works in all directions; it would take hectoliters to be sure it works well down
-this type of drilling is not ideal in case of hard layers in the basement, I have read it. In fact when I use the term "limestone", it is about fine agglomerated limestone gravels (diam 2 to 3 mm)
-I have (once again!) Examined the plan of the injection head and it seems to me that everything is welded, that the sealed bearing is trapped in a cage. That's it ?
- the welding of the bearing also seemed unorthodox to me; the bearing cages must melt during welding ...
- I didn't understand "It is a flexible O-ring which is added later
and the brown piece is a flat joint "
Again thank you all!
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