TPG4150 Reservoir Recovery Techniques 2006
Hand-out note 5: Dietz Stability Analysis
Dietz Stability Analysis
Oil-Water Systems
Consider displacement of oil by water in an inclined layer, consisting of a
homogeneous porous media, as shown below, where gra

Productivity of a Horizontal Well
D.K. aabu, SPE, and Azlz S. Odeh, SPE, Mobil R&D Corp.
Summary. An equation for calculating the pseudosteady-state flow-Le., the productivity-of a horizontal well is presented that is
easy to use and identical in form to

Augmentation of Well Productivity
With Slant and Horizontal Wells
S.D. Joshi, SPE, Phillips Petroleum Co.
Summary. This paper presents an equation to calculate the productivity of horizontal wells and a derivation of that equation
using potential-fluid th

PTE 507 Fall 2015 Homework 12
Horizontal Wells
Due Date: November 19, 2015
Problem 1. Read the following paper and the associated discussions.
Babu, D. K. and Odeh, A. S. Productivity of a Horizontal Well, SPE Reservoir Engineering, Nov 1989,
pp 417-421.

PTE 507 Fall 2015 Homework #9
Material Balance and Underground Reserve Estimation
Due Date: October 30, 2015
Problem 1: A gas reservoir has been on production since January 1, 2012. The average monthly rate
was recorded. Average reservoir pressure was mea

PTE 507 Fall 2015 Homework #8
Production Forecast Methods
Due Date: October 22, 2015
Problem 1: Use Arps empirical equation to make a 10 year production forecast with the following
parameters: q0 = 10 MMSCF/D, D=0.1/year. (10 points total)
1. b= 1
2. b=0.

All wells production after some time decline vs. time.
2
As oil and gas producers, we want to know how much
an existing well, with a declining rate, will produce in
the future, considering the wells conditions stay as
they are
?
3
Rate-Time Decline
In

Economic Evalua,on
Jalal Jalali
Investment Decision Analysis
Outline
Types of Decision
A9ributes of an Ideal Yards,ck
Yards,cks that Ignore Time Value of Money
Yards,cks that Incorporate the Time Value of
Money
Com

Oil & Gas Property Evalua3on
Time Value of Money
Jalal Jalali
1
Topics that will be covered today
Cash Flow Diagram
Simple Interest
Compound Interest
Future Worth of a Lump Sum
Present Worth of a Lump Sum

Coalbed Methane Reservoirs
PTE 507
Engineering and Economic Evalua<on of Subsurface Reservoirs
Jalal Jalali
Viterbi School of Engineering, University of Southern California
October 22, 2010
What is Coal?
Coal is a