Hello

CMC180:
Dears

Kindly help me review this quotation
Also advise on brand of materials (submersible, rope, cable, pipe etc) to choose as well as questions to ask.

Thank you
Cc
Ibinwanne
Larwin

But you can tell him to use martya pump, it's not expensive and regulate power consumption automatically. All these lorenzi Interdab will burn if Yr power supply is nt dat good.

CMC180:
Dears

Kindly help me review this quotation
Also advise on brand of materials (submersible, rope, cable, pipe etc) to choose as well as questions to ask.

Thank you
Cc
Ibinwanne
Larwin

The price and specifications seems fair

EgunMogaji2:
After the all nighter they did not find water.

So another sleepless night lies ahead.

Woe, as they say, is me.

They must ve been drilling blindly with no clear image of what's in the subsurface. If you are close to them you can tell them to pause the drilling and reconduct a comprehensive geophysical Investigation, the investigation must be of high resolution to a depth of about 200-500m.

EgunMogaji2:


It was actually my water supplier that insisted I sink a borehole because 1) I was spending too much money and 2) The roads in my area were not palatable to him and his truck.

I really have no recommendation but Larwin is the resident borehole expert on here.

It's always the best to sink borehole before starting any project, it saves a lot of cost and stress but most people are always so eager to see the building standing...

Drilling is not an easy task and some areas are just mad, carrying out a geophysical Investigation before purchasing lands can save some heartaches.


There is no formula for getting good quantity of water from the ground, but it's always good to follow best practice as this will reduce the %error introduced by equipment and nature to the barest minimum. No geophysical Survey tool in this world can give you 100% iteration, it can just be 99%.

This is the professional truth but our people won't follow it. They want someone that will use mouth swear that there is water there, once you hear something like this, just know that the person is 100% quack.

Also terrains differs to each other, deploying rigs designed for places like Abẹ́òkúta, Ibadan to locations like mowe, ibafo, Lagos is like putting a round peg in square hole, there is no way they can handle the job! And you will keep on spending money.

Even rigs to be deployed to sedimentary areas get level, some won't just have the energy to penetrate some important rock formations which is sealing the water.

As Lagos is, we have drillings that are around 80k and we have drillings that are not less than 80m. The scope of work is different!

kopell:
My experience with submersible pumps, original Interdab1hp never disappoint in last 15 years when I brought the first one even since, is still the best in my experience with their output capacity. I bought couple of them for different locations since then. Either Russian or Italian made. The last one I brought pumped 10,000liters in less than 20 mins with over 95 meter depth of borehole, if it's not commercial borehole I don't think the guy needs to 2 hp, .75hp to 1hp is good enough to pump over 100 meters in my opinion

Yea, pump capacity should be based on yield and not only depth of Borehole. We can use a 1.5-2hp pump on shallow depths of around 40m if the yield is excellent. And we can use 0.75-1hp on a hole of 90-100m if the yield is just fair. In whatever case, there should be a pump testing to determine the best capacity for the hole having in mind that any inbalance can lead to pump getting burnt.

In some cases, if the subsurface is not stable and good Casing is not used, you might end up having a collapse borehole as a result of vibrations from pump.

dapotemi:


I will reach you once am in town sir

Alright, that's fine

folmus:


That one shock me too. No 100% guarantee

Lol, well we have upgraded our tools recently, we can promise you 100% guarantee now. Though professionally speaking, there is always an uncertainties due to nature, we always give nature some 0.5%. So if you want to work professionally, we are available.

This is what what pertains to all geo science field, be it mining, oil and gas.

Shegman22:
Larwin can we achieve just 60meters drilling at Olodo ibadan.

We are always available,what's the overburden thickness? I will call you later tonight.

Shegman22:
So you knw larwin, He is the one drilling for me in any project I supervised for my client.

Engineer Segun, thank you.

dapotemi:


My brother not really o...I was already talking to Larwin i think sometimes last year but discussion went south when he mentioned that even with my 2m he still cannot guarantee that i will get water...Na so i japa .....The amount is already pricy, yet you keep assuring me that it's not guarantee...I go seize your rig....lol
Once i pay in Million for water, i must see water or i demand FULL REFUND immediately...If you can, we deal.

drop your number, Oya let's talk.

dapotemi:


My brother not really o...I was already talking to Larwin i think sometimes last year but discussion went south when he mentioned that even with my 2m he still cannot guarantee that i will get water...Na so i japa .....The amount is already pricy, yet you keep assuring me that it's not guarantee...I go seize your rig....lol
Once i pay in Million for water, i must see water or i demand FULL REFUND immediately...If you can, we deal.

if your ready, let's move into your site... You have got nothing to be worried about though.

I had to change my fuel pump and fuel filter, serviced my injectors cos of this rubbish, car was misbehaving and I thought my fuel lines were due for servicing

It's a new year already

luthorcorp:
if clients appreciated them they wouldn't be in that sector.

Nah, most people can't start from scratch, they want ready made foods. A larger percentage of geology students only aim to work in the oil sector which is only available to the Agric graduates

dapotemi:


lol...this tools plenty for ofada-owode area, na abandon dem dey abandon am after working on site for one month without success..

The few successful one na rotary rig

Lol, I don't even use them. All these hydra can't penetrate through shale

KolaShangOne:


This is the 1 million naira kinda rigs abi

kopell:
I spend more then that in one of my location 6 years before I bring LARWIN in to make fresh report and start allover after 2 failure. He never drill for me but his report show us the way among 4 different reports I paid for, he did couple other reports for me in different locations without knowing whom I am till date. He came from Ibadan then, I don't know if he still reside there.

sir. Thanks for the good words. Like I always, say. Drilling is very difficult, infact I don't like taking drilling projects but they just keep coming. Like in ds mowe ofada here, if any client approach me, my price is btw 2-3m. Some will say is this guy crazy, my neighbour did his own for 300k. On the part of geophysical Survey, being a geologist doesn't mean you are good. The best geologist are the one that have seen the most rocks. The best geologist is not someone with 1st class but someone with high field experience.

twinskenny:
we are lucky around here then...

Attached is what they ar using around here..

Location ibafo

Yea this is hydra. I don't normally use it, infact I don't advise it.

folmus:


Based on his advice above, you can try him if the resources are available.

Did you do the geophysical survey?

Yea, we do geophysical Investigations.

dapotemi:


I have experience a lot of site abandonment from drillers, everybody Don tire

seems we ve discussed before about your Borehole before. Borehole drilling is a difficult task. We have lot of artesian calling themselves borehole drillers. Most of these people are illiterates and doesn't have the technicality to deliver.

I always advise people not to consult a driller for Borehole works, a Hydrogeologist or geophysicist is the right person. You also need to know that most Geoscientists are not practising, a larger percentage are in the banking sector so one just have to know who he is dealing with before giving out job.

Anything drilling is a very difficult job, 100% success is not always guaranteed.

kopell:
I spend more then that in one of my location 6 years before I bring LARWIN in to make fresh report and start allover after 2 failure. He never drill for me but his report show us the way among 4 different reports I paid for, he did couple other reports for me in different locations without knowing whom I'm till date. He came from Ibadan then, I don't know if he still reside there.

Ah ayemi ó. Am on site now, can't comment . Will respond to all once through with site rounds

folmus:


With your experience, you must have spent more than 2m.

The image I uploaded is for a hotel at ofada, we did it this January. The hotel already suffers 2 collapsed boreholes before we were called in.

folmus:


Drop your number, let's talk. Better still, how much do you charge to deliver.

Using standard measures here ll cost nothing less than 2m. 07013460941

diordaves:


I don't know much about Mowe but it seems Mowe is a difficult terrain. Why is that? Do you know? At least with the geological survey you've done has taken the lottery hit and miss out of the equation.

With the survey, water contractors are sincere and honest with you: no I can't do it because of overburden. Way better than fly by night pretenders who will collect money only to turn round for site and then disappear with the advance payment.

Though sedimentary drilling is the most technical, mowe-ofada axis is not that stubborn. Once you don't jeopardise with the right team, right tools, right Casing thickness then the job is a success.

The image attached is one of the rig we used in ofada, you can see its totally different from the Indian rigs. The Indian rigs are majorly created for basement drillings (they love breaking igneous/metamorphic rocks) and once the overburden is much, they won't be able to do the job.

folmus:


How did you arrive at this conclusion? You didn't enlighten us. Mowe-Ofada

Mowe-ofada is a pure sedimentary terrain. The sedimentary rock units are clay, shale and sandstone in which the sandstone is the aquifer. The minor aquifer is mostly at 40m (this can only be tapped by the manual drillers, the major aquifer is at 80m ( you need a motorised rig to tap the aquifer here)



The report was mentioning overburden thickness and this pertains only to basement/ transition zones. The overburden is the load of sedimentary rock (sand, clay etc) units overlying a basement rock.

folmus:
Folks!!

I need a recommendation on borehole drilling.

The results of the geophysical survey recommend 80m with an overburden of 50m.

I have contacted few companies in Ibadan including the one used by @diordaves but they cannot do it because of the overburden.


Location is Mowe.

Don't worry I will do my.......................

If your site is at mowe, then you should check your Geophysical Survey report. Most likely your report is misleading.

michlins:
I just looked at this from another angle. Rubber tanks can actually hold it. Say we do four(4) one thousand gallons. Just like below

Am thinking on something good and economical, because steel tank of 20,000 litres will be so so expensive.

michlins:
to make an estimate, I need to know the height which you will want the tank stand to be.

For it to be simple, what's the height of the tallest building in the estate

Can't really say, the tallest is a story building with a basement. That should be more than 20ft

michlins:
for a 20,000 liters, it's best to do steel tank. That's the only way the water pressure will remain constant same until the last drop of water.

Oh, please try to make a rough estimate

michlins:
two(2) 1000 gallons at the top and one (1) 500 gallons at the middle. Making a total of two thousand five (2,500) gallons. It's customizable to fit your specific water needs.

The materials are:

6 by 3 H beam channel(stands and load beams)

4 by 2 H channel (for the poline)

6 by 3 plates for the guzzets

2" angle iron for the diagonals

12 by 12 by 10mm for the base plates

Can you design something for a commercial estate of 20 flats. We are looking at about 15,000 to 20,000 litres of water. Also let's compare steel tanks to using rubber tanks. Thanks

michlins:
so yes, after building your expensive house, you don't ruin it. You make it beautiful all round including the tank stand

What's the volume of the tanks here?