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Research Papers: Petroleum Engineering

Structural Integrity Analysis of Gas–Liquid Cylindrical Cyclone (GLCC) Separator Inlet

[+] Author and Article Information
Srinivas Swaroop Kolla

Mem. ASME
Department of Mechanical Engineering,
The University of Tulsa,
Tulsa, OK 74104
e-mail: srinivas-kolla@utulsa.edu

Ram S. Mohan

Fellow ASME
Department of Mechanical Engineering,
The University of Tulsa,
Tulsa, OK 74104
e-mail: ram-mohan@utulsa.edu

Ovadia Shoham

McDougall School of Petroleum Engineering,
The University of Tulsa,
Tulsa, OK 74104
e-mail: ovadia-shoham@utulsa.edu

1Corresponding author.

Contributed by the Petroleum Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received May 24, 2017; final manuscript received November 23, 2017; published online December 22, 2017. Assoc. Editor: Esmail M. A. Mokheimer.

J. Energy Resour. Technol 140(5), 052905 (Dec 22, 2017) (10 pages) Paper No: JERT-17-1241; doi: 10.1115/1.4038622 History: Received May 24, 2017; Revised November 23, 2017

The gas–liquid cylindrical cyclone (GLCC) is a simple, compact, and low-cost separator, which provides an economically attractive alternative to conventional gravity-based separators over a wide range of applications. Over the past 22 years, more than 6500 GLCCs have been installed around the world by the petroleum and related industries. However, to date no systematic study has been carried out on its structural integrity. The GLCC inlet section design is a key parameter, which is crucial for its performance and proper operation. This paper presents finite element analysis simulation results aimed at investigating the effect of various parameters on the inlet section structural integrity. Finally, recommendations on design modifications are presented, directed at strengthening the inlet section.

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References

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Figures

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Fig. 8

Mesh sensitivity study

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Fig. 9

Computational fluid dynamics mesh

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Fig. 7

Structural mesh of the CAD model

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Fig. 10

Total deformation in P + W and P + W + F case studies

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Fig. 11

Equivalent von Mises stresses in P + W and P + W + F case studies

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Fig. 12

Zoomed view of localized stress

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Fig. 13

Stresses and deformations in case 3—approach 1

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Fig. 6

Boundary conditions and loads acting on GLCC

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Fig. 5

Schematic of the Minas AWT GLCC (in inches)

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Fig. 4

Area reduction at the inlet

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Fig. 3

Minas AWT GLCC, Indonesia

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Fig. 2

Schematic of GLCC with control valves and single phase meters

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Fig. 1

Growth of GLCC in the field

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Fig. 22

Stress and deformation plots in P + W + Th case (nondifferential pressure)

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Fig. 14

Temperature plot (in Kelvin) on the internal wall of the GLCC extracted from CFD results

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Fig. 15

Stresses and deformations in case 3—approach 2

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Fig. 16

3D view of inlet section cavity region

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Fig. 17

Schematic of wedges supporting the baffle in cavity

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Fig. 18

Modifications-holes in the baffle

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Fig. 19

Hole in the vertical pipe

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Fig. 20

Total deformation in P + W and P + W + F case studies (nondifferential pressure)

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Fig. 21

Equivalent von Mises stresses in P + W and P + W + F case studies (nondifferential pressure)

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