Overview Chapter 5 Part 2 Reservoir Preformance

[@husseinibrahimbacha]

Very interesting presentation -Thanks

[@tommarquez1980]

This video is 10 years old, and it’s full of useful content. Wonderful work!

[@saltdomeguy]

Thank you Richard and Laura for posting these. I hope you are still producing great content. Very informative, great graphics.

[@KHALEDAHMED-ie7fp]

Excellent as expected from Mr Richard

[@tanboem]

Thank you so much, Prof. Lau! I love these videos! So so so helpful for me!

[@kylegustafson3856]

@ wozzers2, The Rs values he is using are constants used at the onset of production of a brand new reservoir being brought on line. So the 6000 to 15000 is a range that classifies the reservoir as a condensate because there would be a value between those numbers in scf/STB. What happens is as pressure decreases in the reservoir the fluid reaches its dew point and something strange happens it forms a liquid that is immobile you will not produce this liquid once it drops out you will never see it. This phenomenon is strange because typically as pressure is reduced gas expands and no liquid forms but under these conditions this fluid forms a liquid with reduction in pressure. This happens because the heavier molecules at reduced pressures fall out of the gaseous state and form a liquid. this is why this is called a retrograde gas condensate because it undergoes retrograde behavior compared to a gas reservoir. It is imperative to keep these reservoirs above there dew point pressure so as not to run into this behavior because the heavier molecules that fall out and form liquid will not flow to the well bore and will cut off the permeability to the gas, there by killing the well.

[@Kamalharbi]

Thanks a lot, Really amazing amazing amazing

[@alaamahshea2286]

appreciate your efforts

[@jt21419]

Great videos. Huge learning curve! You get the pronunciation of "tertiary" wrong though. You include a syllable that isn't there. It's ter-tia-ry, not ter-tia-ra-ry.

[@jasonli7960]

What does Rs represent again?

[@estherabrams]

Thx Dear!

[@SS_akmar]

what happened to the sound???