A reliable strategy for slug flow attenuation in pipeline-riser systems

Adegboyega B. Ehinmowo, E. T. Evwierhoma, Aliyu M. Aliyu, Yahaya D. Baba

Research output: Contribution to journalConference article

Abstract

Oil and gas activities across the globe now take place deep offshore. To operate in this harsh environment, there are numerous challenges. These can be in the form of high cost of production, space constraints, operational and technological demands. The co-transportation of oil and gas in same pipeline is one of the operational and technological approaches adopted in the industry to meet the transportation of produced crude. This approach comes with its attendant flow assurance difficulties. Slugging is one of such problems which can constitute operational hitches resulting in production reduction and sometimes eventual plant shutdown. Existing attenuation techniques are limited in various ways. Therefore, seeking a reliable solution to this problem is highly desired.In this study, an experimental study of multiple techniques for slug attenuation was attempted. A passive device-the intermittent slug absorber, topside choking and topside separator were investigated. The results show that a combination of the methods proves to be more effective compared to individual techniques. A significant reduction in riser- base pressure of up to 39% was achieved. This is advantageous and translates to an increase in oil recovery. Thus, the proposed strategy helps to achieve system stability and improved production at a lower cost.

Original languageEnglish
Article number042103
Number of pages12
JournalJournal of Physics: Conference Series
Volume1378
Issue number3
DOIs
Publication statusPublished - 18 Dec 2019
Externally publishedYes
Event3rd International Conference on Engineering for Sustainable World - Ota, Nigeria
Duration: 3 Jul 20198 Jul 2019
Conference number: 3

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