Novel AgR-EOR compression integration for process optimization

Abdukarem Amhamed, Ahmed Abotaleb

Research output: Contribution to journalArticle

Abstract

In this work we aim to enhance the sour-gas loading in acid-gas removal (AGR) systems, maximizing oil-production rate at the tertiary phase and enhanced oil recovery (EOR), and mitigating vented carbon dioxide (CO2) with minimal modification to the existing systems. We conducted a simulation study on the basis of a real natural-gas liquids (NGLs) plant and Qatari oil wells with a 390-MMscf/D feed of sour gas using HYSYS and ProMax process simulation tools to evaluate the novel configurations compared with a conventional AGR system. The results show that the acid-gas loading improved from 0.48 to 0.81, and the amine circulation rate decreased by 40%, while maintaining the treated-gas quality specifications (4 ppm H2S, 1 mol% CO2). The required CO2 compression power for CO2-EOR decreased by 15.49%, and the oil production was enhanced by 1,360 B/D. In addition, 13.6 MMscf/D of CO2 is mitigated and used rather than vented.

Original languageEnglish
Pages (from-to)421-428
Number of pages8
JournalSPE Production and Operations
Volume34
Issue number2
DOIs
Publication statusPublished - 1 Jan 2019

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ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology

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