Research Papers: Petroleum Engineering

Influence of Radial Flux Inflow Profile on Pressure Drop of Perforated Horizontal Wellbore

[+] Author and Article Information
M. A. Abdulwahid

Department of Marine Engineering,
Engineering College (A),
Andhra University,
Visakhapatnam 530003,
Andhra Pradesh, India
e-mail: mohw2002@yahoo.com

I. N. Niranjan Kumar

Department of Marine Engineering,
Engineering College (A),
Andhra University,
Visakhapatnam 530003,
Andhra Pradesh, India
e-mail: neeru9@yahoo.com

S. F. Dakhil

Department of Fuel and Energy,
Basrah Technical College,
Box no. 58,
Basrah, Iraq
e-mail: drsadoun2@gmail.com

1Corresponding author.

Contributed by the Petroleum Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received October 18, 2013; final manuscript received September 30, 2014; published online November 6, 2014. Assoc. Editor: Andrew K. Wojtanowicz.

J. Energy Resour. Technol 136(4), 042907 (Nov 06, 2014) (7 pages) Paper No: JERT-13-1297; doi: 10.1115/1.4028770 History: Received October 18, 2013; Revised September 30, 2014

In this study, the authors have attempted to present five different profiles for a uniform radial influx through a perforated wellbore. The total pressure drop is not only frictional, accelerational and gravitational pressure drops, but also by the inflow pressure drop that is caused by the inflow through the perforation. The inflow through the wellbore model affects the shear stress due to the wall friction. The influence of inflow depends on the flow regime present in the wellbore. Numerical simulations were performed using ansys fluent 14-cfx, where the governing equations of mass and momentum were solved simultaneously, using the two equations of a standard k–ε turbulence model. The results proved that the behavior of wall shear stress followed the shape of the radial inflow, i.e., the shear stress increased with the increase of radial flow and decreased with the decrease of radial flow. It was found that the fluid influx has increased the apparent friction factor along the horizontal wellbore, but in some cases the influx is decreased.

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Fig. 1

Horizontal well model with fluid inflow through the perforations

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Fig. 2

Pressure drop with Re for profile 1

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Fig. 3

Pressure drop with Re for profile 2

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Fig. 4

Friction pressure drop with wellbore location for three profiles (1, 2, and 3)

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Fig. 5

Friction pressure drop with wellbore location for three profiles (1, 4, and 5)

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Fig. 6

Raf with wellbore location for profiles 1, 2, 3, 4, and 5

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Fig. 7

Mean wall shear stress with wellbore location

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Fig. 8

Comparison of different friction factors (profile 2)

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Fig. 9

Friction factor due to wall shear stress for all profiles

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Fig. 10

Apparent friction factor with Reynolds numbers for five profiles

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Fig. 11

Local friction factor ratio

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Fig. 12

Comparison of local friction factor ratio with Rew for profile 2 with other research [9]



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