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FALLING TEMPERATURE IN GAS WELL

FALLING TEMPERATURE IN GAS WELL

(OP)
Hello

We have gas well for the 89% of methan.
Our well is 860m deep
The temperature on the bottom is 60 celsiouse
WE MUST TO CALCULATE HOW MUSCH IS THE TEMPERATURE ON THE WELL HEAD?

HOW CAN WE CALCULATE THE TEMPERATURE FALLING?

THANKS TO EVERYBODY IN ADVANCE!

MARKO

RE: FALLING TEMPERATURE IN GAS WELL

Ground temperature changes (increasing going down) by about 0.0165°F/ft (it is too late in the evening to convert it for you). As a first approximation, convert that number to Celsius/m and multiply it times your depth and subtract it from your bottom hole depth. You will most likely get a number that is higher than the actual number you measure when you start producing.

The ground is not homogeneous. The rate of heat transfer into (or out of) each formation is very dependent on the fluids in the formation. All of it is dependent on fluid velocity.

David Simpson, PE
MuleShoe Engineering

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