Petroleum Engineering 421
Production Engineering
Homework 3
Due September 24, 2014
1. Assuming pseudosteadystate flow, calculate oil flow rate of a vertical
well in an undersaturated oil reservoir. The following data are given:
Porosity =0.2
Effective p
Aristide NGEMHE
Fall 2014
UND
Dr LING
Petroleum Engineering 421
Production Engineering
Homework 10
Data from an oil well flowafterflow test are given in the following table:
q (bbl/d)
2170
4340
6510
7590
10850

pwf (psi)
4598
4196
3794
3592
2989
Determ
Petroleum Engineering 421
Production Engineering
Homework 10
Due on November 24, 2014
Data from an oil well flowafterflow test are given in the following table:
q (bbl/d)
2170
4340
6510
7590
10850
pwf (psi)
4598
4196
3794
3592
2989
For = 1.2 cp, Bo = 1.
Petroleum Engineering 421
Production Engineering
Homework 11
Due on December 3, 2014
1. The following well production history was observed:
Year
0
1
2
3
4
5
6
Production Rate
(stb/d)
1100
(qi)
980
867
769
684
609
543
Forecast the production rate at the en
Petroleum Engineering 421
Production Engineering
Homework 9
Due on November 17, 2014
1. Assume GLR=500 scf/bbl, use Gilbert method to construct choke performance curves
for the flowing tubing pressure up to 1000 psi for the well of Appendix B for choke si
Petroleum Engineering 421
Production Engineering
Homework 8
Due on November 10, 2014
1. Develop a forecast of well performance using the VLP curve of Example 81 and a
transient IPR at 1, 2, and 6 months for the 640acre drainage area (i.e., until boundar
Petroleum Engineering 421
Production Engineering
Homework 7
Due October 13, 2014
1. Calculate the bottomhole pressure for the injection of 1500 bbl/d of brine
with a density of 1.08 g/cm3 and a viscosity of 1.3 cp in an 8000ft vertical
well having a surf
Petroleum Engineering 421
Production Engineering
Homework 6
Due on October 8, 2014
1. If the permeability impairment k / ks is 8, the damage penetration is 3 ft,
and rw = 0.328 ft, calculate the well skin effect. What should the k / k s be
for the same sk
Petroleum Engineering 421
Production Engineering
Homework 6
Due on October 8, 2014
1. If the permeability impairment k / ks is 8, the damage penetration is 3 ft,
and rw = 0.328 ft, calculate the well skin effect. What should the k / k s be
for the same sk
Petroleum Engineering 421
Production Engineering
Homework 5
Due on October 6, 2014
1. Construct IPR of a vertical well in an oil reservoir. Consider (1) transient
flow at 1 month, and (2) steadystate flow. The following data are given:
Porosity =0.25
Eff
Aristide NGEMHE
Fall 2014
UND
Petroleum Engineering 421
Production Engineering
Homework 4
1. Assuming pseudosteadystate flow, construct IPR of a vertical well in an
undersaturated oil reservoir using the generalized Vogel equation. The
following data ar
Petroleum Engineering 421
Production Engineering
Homework 2
Due September 22, 2014
1. Calculate oil production rate of a vertical well in an undersaturated oil
reservoir considering transient flow at 1 month. The following data are
given:
Porosity =0.2
Ef
Aristide NGEMHE
Fall 2014
UND
Petroleum Engineering 421
Production Engineering
Homework 3
1. Assuming pseudosteadystate flow, calculate oil flow rate of a vertical
well in an undersaturated oil reservoir. The following data are given:
Porosity =0.2=
Eff
Aristide NGEMHE
Fall 2014
UND
Petroleum Engineering 421
Production Engineering
Homework 2
1. Calculate oil production rate of a vertical well in an undersaturated oil
reservoir considering transient flow at 1 month. The following data are
given:
Porosity
P t r E 4 2 1  Fall 2014
Production Engineering
Midterm Exam
1. (40 points) Calculate the wellhead pressure for the production of
1000 bbl/d of oil with a density of 0.85 g/cm3 and a viscosity of 3 cp in
a 10000ft vertical well having a bottomhole press
Petroleum Engineering 421
Production Engineering
Homework 4
Due on October 1, 2014
1. Assuming pseudosteadystate flow, construct IPR of a vertical well in an
undersaturated oil reservoir using the generalized Vogel equation. The
following data are given
Fabian Becerra
Petroleum Engineering 421
Production Engineering
Homework 8
Due on October 27, 2015
1. Develop a forecast of well performance using the VLP curve of Example 81 below
and a transient IPR at 1, 2, and 6 months for the 640acre drainage area