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Field Perforated 
by 
TCP system 
Perforated by
conventional system 
Melehia
Aman
North 
East
Well M-31 
Well A-10 
Well NE-11 
Well M-10 
Well A-6 
Well NE-14 
Fig. 2 compares the production performance of well 
M-31 (perforated using the underbalanced TCP 
system) and well M-10 (perforated using a 
conventional system). Figs 3 and 4 present similar 
comparisons for wells selected from Aman and 
Northeast oil fields. These three figures show that a 
higher oil production is attained from wells 
perforated using the underbalanced TCP system 
with sucker rod pump installation than that 
obtained from wells perforated using the 
conventional perforating system. Even after long 
period of production time, these wells still have 
higher productivity.
5
. Conclusions
 
1.
A comprehensive evaluation of the through-
tubing gun technique, casing gun technique, 
and tubing conveyed perforating system has 
been carried-out. Advantages and limitations of 
each system have been identified.
2.
Both laboratory investigation and field 
application confirm that the Tubing conveyed 
perforating system enjoys many advantages 
over the through-tubing gun technique and the 
casing gun technique. 
3.
Egyptian field applications of the 
underbalanced tubing conveyed perforating 
(TCP) system with sucker rod pump 
installation indicate that this type of application 
enjoys many advantages, including higher 
production, low perforation/formation damage, 
and secured safety. 
References 
1.
Naguib, M. A., Shaheen, S. E., Bayoumi, 
A. E., and El-Emam, N. A. “Review of 
Artificial Lift in Egypt,” SPE 64508, the 
SPE Asia Pacific Oil Oil and Gas 
Conference and Exhibition, Brisbane, 
Australia, 16-18 Oct, 2000. 
2.
Brieger, E. F. and Stovall, G. E., 
“Perforating Damage: Here’s One Field 
Tested Solution,” World Oil, November, 
1976.
3.
Colle, E. A., “A Completion Technique for 
Overcoming Formation Damage,” SPE 
7009, presented at the Third Symposium on 
Formation Damage Control held in 
Lafayette, Louisiana, 15-16 Feb., 1978.
4.
Bell, W. T., Brieger, E. F., and Harrigan, J. 
W., “Laboratory Flow Characteristics of 
Gun Perforations,” Journal of Petroleum 
Technology, Sept., 1972.
5.
Bell, W. T., “Perforating Techniques for 
Maximizing Well Productivity,” SPE 
10033, presented at the International 
Petroleum Exhibition and Technical 
Symposium of the Society of Petroleum 
Engineers held in Beijing, China, 18-26 
March, 1982.
6.
Crawford, H. R., “Underbalanced 
Perforating Design,” SPE 19749, presented 
at the 64th Annual Technical Conference 
and Exhibition of the Society of the 
Petroleum Engineers held in San Antonio, 
TX, USA, 8-11 Oct., 1989.
7.
Schlumberger: Tubing-Conveyed 
Perforating Systems: Schlumberger 
Educational Services, Houston, TX, 1988.
8.
Bell, W. T., “Perforating Underbalanced-
Evolving Techniques,” Distinguished 
Author Series, The Journal of Petroleum 
Technology, Oct.1984.
9.
Mahfouz, M. “Sucker Rod Completion A 
New Techniques To Do It” The Tenth 
Petroleum Exploration & Production 
Conference, Cairo, Nov. 17-20, 1990.