Title

Laboratory Study Of Hydrogen Sulfide Removal In Slug Flows In A High Pressure Crude Oil Loop

Keywords

High pressure loop; Hydrogen sulfide in crude oil; Two phase flow

Abstract

Hydrogen sulfide (H2S) undergoes decompression during petroleum extraction from oil reservoirs, during which a certain amount of H2S-scavenging liquid compound is added to absorb H2S in the pipelines. All experiments were conducted in a high pressure flow loop with a thousand feet of coiled tubing to simulate the horizontal section of the pipeline that runs along the ocean floor from the reservoir at 20bar (1bar=101.3kpa) and room temperature with a 40ppm H2S gas concentration in nitrogen (N2). This paper reports experimental results on the role of superficial liquid and gas velocities (0.2-0.5m/s and 0.4-1.1m/s) on H2S removal. All experimental tests were conducted in the slug flow regime, thus this paper also reports the effects of pressure and the distance to which this flow regime prolongs, which is correlated to the H2S removal efficiency. Results indicate that an increase in superficial gas velocity at low superficial liquid velocity decreases the scavenger efficiency while the opposite is seen at high superficial liquid velocity. In addition, an increase in pressure shifts the transition zones in the flow regime altering the scavenger efficiency. © 2013 Elsevier B.V.

Publication Date

3-1-2013

Publication Title

Journal of Petroleum Science and Engineering

Volume

103

Number of Pages

72-79

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.petrol.2013.01.009

Socpus ID

84877673060 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84877673060

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