1
$\begingroup$

I am doing some labor work on a rig and am confused about something. I heard from my superiors that we are injecting steam at 180°C with the wellbore pressure being 2 MPa. If I look at these conditions on a steam table, shouldn't the steam be compressed water?

$\endgroup$
1
$\begingroup$

You are correct, that water at 180°C and 2 MPa will be a liquid.

Perhaps the steam is not being injected at the "wellbore pressure", or its temperature rises during the injection process?

Water Phase Diagram

$\endgroup$
1
$\begingroup$

Most SAGD facilities inject steam at much higher temperatures and pressures (often over 300°C). Downhole temperatures may be 180°C at 2 MPa.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.