Coiled Tubing Rig

[Elgar]

Could someone explain to me what does this Oil Well upgrade do exactly please ? I'm not sure I understand well the description :

Decreases consumption of the oil deposit to 80% of the produced units of oil.

Does that mean that for 1 unit of oil produced, the deposit is depleted of only 0.8 unit of oil?

Thank you in advance.

[MarkJerue]

For every 10 oil produced by the oil well, instead of removing 10 oil from the deposit, it only removes 8 oil.

So it doesn't increase immediate profit, but long-term profit, by making the oil well last longer.

[Elgar]

Thank you. So I guess it's interesting for sandbox but not really for missions, since missions end before you have a chance to deplete the deposit, even without the upgrade.