Hello everyone, in this video I will tell
you how to determine the resistivity of a
brine core at room temperature.
As you can see, here is the apparatus that
we will be using for our measurement.
This is the line that goes from our generator
to both of our core and our reference resistance.
And this is the line that goes from our pressure
supply to give pressure that will hold our
core tightly.
And this is the line that goes from our core
to our multimeter so it will be connected.
And last but not least, this is the line that
connects from the reference resistance to
our multimeter.
Now let's move to the procedure.
We need to open the blue air valve, so it
will give the pressure to our electrodes to
hold our core.
And then we will plug in our generator.
To get a good result, we need to wet the two
electrodes using a paper that wetted with
water, we need to do this to get a good connection
between our core system.
And then we can take a 100% water-saturated
core and assemble it between the electrodes.
And then we need to place the plastic box
over the system.
And we will turn on our generator using the
switch and set its output frequency to 1000Hz.
And then we can see the reading of our voltagemeter
both 1 and 2, which our voltagemeter 1 will
yield the results of our reference and voltagemeter
2 will give the results of our core.
In this video we use reference core as our
test core.
But you can do the same as your core that
already being saturated using saltwater.
After doing the experiment, we can turn off
the generator and take out our core and close
the air valve.
And then make sure to clean the electrodes
and area underneath it with distilled water
after the measurement.
And then don't forget also to turn off all
the voltagemeter that we are using in this
measurement.
