2 pipes are com'n through my cement basement wall and now water is coming through . I tried hydraulic cement from the out side didn't work . Is there anything I could do from the inside to seal it off thanks

Silicone caulk?

Please explain the problem in detail. Are the pipes in the basement? How far under ground are they? Where is this water coming from?
Let me know, Tom

Please explain the problem in detail. Are the pipes in the basement? How far under ground are they? Where is this water coming from?
Let me know, Tom

The pipes are in basement about 4'underground outside. Water is coming from rain snow melt that soaks down to the hole the pipes are for my Geothermal heating/cooling system it wasn't sealed properly when installed . I tried Hydraulic cement inside and outside didn't work . Thanks for taking time with this

Actually, I would try to seal on the outside and the inside. What's puzzleing is that a small leak usually just heads for the french drain.

Since you said rain and snow melt, the first thing is grading and length of the downspouts.

With that taken care of, I'd clean the areas needing to be sealed. Without a clean source, your going to be hard pressed to get a leak tight seal.

Sleaving would be the BEST thing to do. This is where you would put in a piece of PVC so that the pipe can pass through it and it would allow for expansions in all directions. You may have pipe expansions that need to be taken care of as well as foundation movement. The only way is to isolate these changes and to make sure the changes are not destructive.

Suppose you did it the right way. Sleave the penetration and make sure the pipes can give. Using gravel and elbows with enough lateral length can allow for some expansion in the pipes. If the pipes are TOO tight in the holes that can cause issues too.

I'd use Rockite to fix any major imperfections in the cement.

You want a flexible joint with a material that can be used underground, therefore I'd recommend a polyurethane caulk. An example of a date sheet would be here:

http://www.homasote.com/Installation/SononlasticNP1_tdg.pdf

If you can't find a similar product at a hardware store then try a marine store.