Scribd
Upload
104 views7 pages

Assignment 3 Tutorial

This document provides a tutorial for Assignment 3 in the ENGI 9114 course. It outlines 4 questions to be answered: 1. It discusses pressure communication between two compartments and provides an equation for calculating hydrostatic pressure. 2. It instructs the reader to plot relative permeability curves in Excel or Matlab and provides equations for calculating water and oil flow rates. 3. It provides an equation for calculating capillary pressure and instructions for determining the distance between the free water level and oil water contact. 4. It gives directions for using data from two gas wells to find gas density and provides equations for calculating gas and water pressures at different depths.

Uploaded by

Mohammad Haq
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
104 views7 pages

Assignment 3 Tutorial

This document provides a tutorial for Assignment 3 in the ENGI 9114 course. It outlines 4 questions to be answered: 1. It discusses pressure communication between two compartments and provides an equation for calculating hydrostatic pressure. 2. It instructs the reader to plot relative permeability curves in Excel or Matlab and provides equations for calculating water and oil flow rates. 3. It provides an equation for calculating capillary pressure and instructions for determining the distance between the free water level and oil water contact. 4. It gives directions for using data from two gas wells to find gas density and provides equations for calculating gas and water pressures at different depths.

Uploaded by

Mohammad Haq
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 7

Assignment 3 Tutorial

ENGI 9114
Instructor: Dr. Thormod Johansen
Tutorial: Lili
Question 1

Note: There is pressure communication


between the two compartments

𝑃𝑐 ∗ = ∆𝜌𝑔ℎ∗
ℎ∗ is the distance
between FWL and OWC
Question 2

Plot relative permeability curves


in Excel or Matlab
Question 2

𝐾𝐾𝑟𝑤 𝑑𝑃 𝐾𝐾𝑟𝑜 𝑑𝑃
𝑏) 𝑄𝑤 = − 𝑄𝑜 = −
𝜇𝑤 𝑑𝑥 𝜇𝑜 𝑑𝑥

𝑐) & 𝑑) 𝑆𝑢𝑏𝑠𝑡𝑖𝑡𝑢𝑡𝑒 𝐾𝑟𝑤 and 𝐾𝑟𝑜 in Corey Model,


calculate 𝑆𝑤 and a
Question 3

∗ 1
∗ 𝑃𝑐 𝐾
𝐽∗
a) 𝑅𝑒𝑎𝑑 and use to calculate 𝑃𝑐 ∗
𝐽(𝑆𝑤) = 𝜎 ( ∅)2
Then, you can distance between FWL and OWC, ℎ∗
1
𝑃𝑐 𝐾
b) ℎ = ℎ∗ +1.5 𝑃𝑐 =∆𝜌𝑔ℎ 𝐽(𝑆𝑤) = 𝜎 ( ∅)2
2𝜎𝑐𝑜𝑠𝜃
c) 𝑃𝑐 ∗ = 𝑟∗
∅𝐷2
d) 𝐾𝑜𝑧𝑒𝑛𝑦 𝑒𝑞𝑢𝑎𝑡𝑖𝑜𝑛 𝐾 = const 𝜏
Question 4

a) Use the two gas wells to find gas density

b) 𝑃𝑔 =𝑝𝑔 + 𝜌𝑔 𝑔(𝑍 − 𝑍𝑔 )
𝑃𝑤 =𝑝𝑤 + 𝜌𝑤 𝑔(𝑍 − 𝑍𝑤 )
At free water level, 𝑃𝑔 = 𝑃𝑤
Thank you!

Any Questions？

You might also like