ENGI 8691 Assignment 1 Solution
Spring 2012
Question 1
1) According to Darcys law for radial flow,
[()
]
Substitute parameters in SI units
[(
)
]
2) For flow rate on Stock tank condition,
Question 2
Pressure distribution for half WWS and half blank
ENGI Assignment 5 Solution
Spring 2012
ENGI 8691/9100 Assignment 5 solution
Part I
We use an excel sheet to calculate the production rate:
For different Kv and reservoir thickness, use the following equation to calculate different
Iani, C and lnC.
Based o
Engi 8691/9110 Assignment 4 - Solution
This solution is based on excel calculation:
The equations we used to calculate the bubble point are:
2
2012 Spring
3
Plot Rs, Bo, o, o as functions of pressure in the range 2000 psia 6000 psia.
Step 1: Calculate th
ENGI 8691/9110 Assignment 2 Solution
ENGI 8691/9110 Assignment 2 Solution
Part I
Spring 2012
ENGI 8691/9110 Assignment 2 Solution
Spring 2012
A drawdown test in an infinitely acting reservoir is shown in Fig. 1. The
following test information is also give
Question 1:
()
()
()
X=42.83m
X= 42.83 m<2500 m, so we can assume flow is turbulent everywhere.
a)
b)
=
c)
Question 2:
a)
(
)
=39830pa=0.40bar
b)
c)
d)
Question 3
Question 4
Plot the total skin as a function of perforation
In this question, Lp<1.678ft per
Assignment 1. EN 8691-2012
Deadline: May 25 -2012 @ 4 pm
Exercise 1.
Exercise 2.
Exercise 3.
In this exercise, convert all information to field units. Then, use the appropriate formula
to calculate the flow rate.
Exercise 4.
From lecture notes, the relati
Assignment 6 EN 8691/9110
Deadline: None
Value in evaluation scheme: 0%
I.
A horizontal well is producing 3500 Sm3/day. The well is 2500 m long and it is assumed
that the flow rate in the well increases linearly with the distance from the toe, and the
flo
Assignment 5 EN 8691/9110
Deadline: July 10 @ 4pm.
I.
Calculate and plot production rates for horizontal wells in a reservoir as a function of
well length given the following information:
Horizontal permeability:
External (constant) reservoir pressure:
Fl
Assignment 2 EN8691
Deadline: Friday June 1, 20012 @ 4 pm.
I.
A drawdown test in an infinitely acting reservoir is shown in Fig. 1. The following test
information is also given:
Flow rate:
Formation volume factor:
Viscosity:
Porosity:
Wellbore radius:
Res
Assignment 3, EN 8691.
Deadline: June 8, 2012 @ 4 pm.
In this work, use the following reservoir and well information:
Permeability:
Reservoir thickness:
Initial reservoir pressure:
Total compressibility:
8.2 mD
53 ft
5651 psia
1.29E-5 psi-1
Oil viscosity:
Assignment 4 EN8691
Deadline: Friday June 15 2012 @ 4pm.
Develop a spread sheet (or several) for calculation of oil properties as a function of
pressure according the Vazquez & Beggs correlation as described in the lecture notes.
The following information