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Elbow

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Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-4208
... dynamics (CFD) and Boundary Element Method (BEM), this paper analyzes the influence of inflow velocity, bending angle, cross-sectional shape and cross-sectional dimensions, on the noise of elbow pipes. The results show that the SPL frequency characteristics of elbow pipe outlet are similar at different...
Proceedings Papers

Paper presented at the CORROSION 2020, June 14–18, 2020
Paper Number: NACE-2020-14801
... Computational Study on the Erosive Surface Degradation in a Pipe Elbow by relevance to internal Combustion Engine Cooling Systems Sebastian Wegt, Jan Hartmann, Suad Jakirlic, Cameron Tropea Institute for Fluid Mechanics and Aerodynamics, Technische Universität Darmstadt Alarich-Weiss-Straße 10...
Proceedings Papers

Paper presented at the 5th ISRM Young Scholars' Symposium on Rock Mechanics and International Symposium on Rock Engineering for Innovative Future, December 1–4, 2019
Paper Number: ISRM-YSRM-2019-064
... Abstract In water conservancy and hydropower engineering, it is often difficult to construct elbow in underground caverns rapidly due to its complex structure. Aiming at problems of slow speed, difficulty in fine control and prominent safety contradiction in traditional construction methods...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12934
... for permanent subsea installation on an 8-inch elbow to monitor the pipe integrity and detect erosion by measuring the critical elbow wall loss. Monitoring tool consists of multiple (seven) ultrasound sensor segments spread around the outside circumference of the elbow, and each contain 34 ultrasound...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 11th North American Conference on Multiphase Production Technology, June 6–8, 2018
Paper Number: BHR-2018-419
... ABSTRACT In the oil and gas industry, sand can be entrained with production of gas and liquid and can cause erosion damage and failure of pipelines, especially in elbows that are widely used to change the flow orientation. As a result, erosion failure of pipelines can occur which causes...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-838
... Abstract This work describes the results of cracking analysis of stainless steel 90 degree elbow on the liquid level gauge in the bottom of atmospheric fractionator. To identify failure mechanism and possible causes of leakage of 90 degree elbow, optical microscopy, chemical analysis, hardness...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 9th North American Conference on Multiphase Technology, June 11–13, 2014
Paper Number: BHR-2014-A4
... Abstract This study considers the removal of accumulated liquid in the lower elbows of gas/liquid pipelines by the gas flowing over the liquid pool, i.e. at zero net liquid flow (ZNLF) conditions. Measurements were performed in a V-shaped section of a pipeline, prefilled with a finite amount...
Proceedings Papers

Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-4306
... elbow and the results are compared with the experimental results and predictions using the single particle erosion models in the CFD framework. Upstream Oil & Gas individual particle time step Fluid Dynamics predict erosion erosion model pipeline manuscript Simulation particle...
Proceedings Papers

Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-658
... ABSTRACT: The present study examines the behavior of steel pipeline elbows subjected to strong cyclic loading conditions. A set of experiments is conducted where in-plane cyclic bending with constant amplitude is applied on the elbow specimens by controlling the elbow end-displacements...
Proceedings Papers

Paper presented at the CORROSION 2011, March 13–17, 2011
Paper Number: NACE-11149
... INTRODUCTION ABSTRACT A long seam weld located on the inside radius of a 90° elbow coming out of a hotbox of an ethane cracking furnace, was found to be damaged at the end of 2008. The damage was in the form of cavities. Metal dusting and erosion were determined to be the root causes...
Proceedings Papers

Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-346
... ABSTRACT In this paper cyclic test results of elbow with volumetric defect at outer surface of stretched zone are presented. Test was carried out under pulse inner pressure loading of torus welded from four elbows of the same size. Experimental durability was compared with calculated according...
Proceedings Papers

Paper presented at the CORROSION 2009, March 22–26, 2009
Paper Number: NACE-09479
... ABSTRACT: An elbow leak was encountered after 3 years of operation of a carbon steel flow line from an artificial lift (rod pump) well. Examination of the interior surface of the elbow revealed that the surface was entirely protected by a black corrosion scale with no active corrosion except...
Journal Articles
SPE Prod & Oper 23 (01): 88–99.
Paper Number: SPE-102254-PA
Published: 20 February 2008
...E. M. Al-Safran; C. Sarica; H. -Q. Zhang; J. P. Brill Summary Probabilistic/mechanistic modeling was carried out to develop a predictive model for initiated slug-length distribution at the lower elbow of a hilly-terrain pipeline. Statistical analysis suggested the appropriateness of a Log-Normal...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 13th International Conference on Multiphase Production Technology, June 13–15, 2007
Paper Number: BHR-2007-C4
... ABSTRACT The objective of this study is to experimentally investigate the effect of the top elbow on two-phase flow behavior in a hill configuration of hilly-terrain pipelines. The data used in this study was acquired from the University of Tulsa 420-m long, 50.8-mm. inner diameter flow loop...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-102254-MS
... Abstract Probabilistic/mechanistic modeling was carried out to develop a predictive model for initiated slug length distribution at the lower elbow of a hilly-terrain pipeline. Statistical analysis suggested the appropriateness of a Log-Normal model over an Inverse Gaussian model. The Log...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 12th International Conference on Multiphase Production Technology, May 25–27, 2005
Paper Number: BHR-2005-E2
... ABSTRACT Probabilistic/mechanistic modeling was carried out to develop a predictive model for initiated slug length distribution at the lower elbow of a hilly-terrain pipeline. Statistical analysis suggested the appropriateness of a Log-Normal model over an Inverse Gaussian model. The Log...
Journal Articles
Journal: Corrosion
Corrosion 52 (09).
Paper Number: NACE-96090714
Published: 01 September 1996
.../Corrosion Research Center, Mechanical Engineering Department, University of Tulsa, Tulsa, OK, 74104-3189. Present address: Pertamina, Jalan Kramat Raya 59, Jakarta Pusat, 10450, Indonesia. Erosion-Corrosion of a Carbon Steel Elbow in a Carbon Dioxide Environment J.R. Shadley, S.A. Shirazi, E. Dayalan,* M...
Proceedings Papers

Paper presented at the Technical Meeting / Petroleum Conference of The South Saskatchewan Section, October 15–17, 1995
Paper Number: PETSOC-95-156
... Abstract The applicability of elbows as metering devices for two phase oil-tn-water emulsions was investigated. The discharge coefficients were determined for unstable emulsions with oil concentrations ranging from 0 to 47.1 vol. %. Four standard long radius elbows with different dimensions...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16631
... Abstract During production of oil and gas, sand is produced as an unwanted by-product. Sand particles of many sizes carried by the multiphase flow can severely affect the integrity of fluid transportation structure such as pipelines, elbows, reducers and other pipe fittings. Sand production...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2192
... ABSTRACT In oil and gas production and transportation systems, the particles carried with the conveying media usually exert accumulative collision on fittings such as elbows and tees in pipelines and piping section of facilities. The serious erosion damage may cause failure of the facilities...

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