Optimisation of steam and gas push to prevent water influx from a top-water-bearing area into a vapour chamber
- 주제(키워드) steam and gas push , SAGP , oil sands , top-water-bearing zone , steam chamber , energy efficiency
- 주제(기타) Energy & Fuels; Engineering, Chemical; Engineering, Petroleum
- 설명문(일반) [Chung, Sunghoon] SK E&S, Upstream Tech Team, Seoul, South Korea; [Kang, Joe M.] Seoul Natl Univ, Dept Energy Syst Engn, Seoul, South Korea; [Park, Changhyup] Kangwon Natl Univ, Dept Energy & Resources Engn, Chunchon, Kangwon, South Korea; [Min, Baehyun] Ewha Womans Univ, Dept Climate & Energy Syst Engn, Seoul, South Korea; [Jang, Ilsik] Chosun Univ, Dept Energy & Resources Engn, Gwangju, South Korea
- 등재 SCIE, SCOPUS
- 발행기관 INDERSCIENCE ENTERPRISES LTD
- 발행년도 2019
- URI http://www.dcollection.net/handler/ewha/000000160495
- 본문언어 영어
- Published As http://dx.doi.org/10.1504/IJOGCT.2019.098460
초록/요약
This paper presents how to produce bitumen efficiently from the reservoir with top-water-bearing zone. The impact of naturally occurring and/or co-injected non-condensable gas on bitumen production is investigated using numerical studies. Non-condensable gas can improve energy efficiency in two ways: reduction of dynamic vacuum effect and blockage of direct contact of steam chamber and top water layer. A strategic operation mitigating the groundwater influx is presented. An artificial neural network (ANN) model adjusts both pressures of steam and non-condensable gas injected as well as the amount of non-condensable gas. The results show the optimised scheme of steam and gas push (SAGP) can improve the energy efficiency of thermal recovery by maintaining the pressure within the steam chamber enough to prevent excessive water influx, not to obstruct steam chamber expansion in early production stage.
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