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永和山氣田二氧化碳封存先導試驗模擬研究

A Simulation Study on CO2 Storage Pilot Test for the YHS Field

摘要


永和山氣田可能作為台灣中油公司未來進行二氧化碳地質封存先導試驗之規劃場址,因此本研究主要目的是建立該氣田二氧化碳封存模擬模式,以探討先導試驗最佳的注氣井、監測井及注氣量,並進行先導試驗之油氣增產模擬評估,提供未來規劃二氧化碳地質封存先導試驗最適方案選擇之參考。研究結果顯示,2年先導試驗期間內,擠注5~10萬噸二氧化碳,以YHS-6號井為注氣井,同時以YHS-7號井為監測井及生產井,可增產較多的天然氣及凝結油,此方案注氣井地點較佳,無需修井,所需成本最少,經濟效益最大,可考量為未來二氧化碳地質封存先導試驗之最適方案,經濟分析結果,NPV=6仟2百萬元、IRR=13.6%、Payout=6.66年。此外,目前涸竭的永和山舊氣田二氧化碳封存能量應可達300萬噸以上。

關鍵字

注氣井 地質封存 超臨界相

並列摘要


YHS field will be the target site of CO2 storage pilot test for CPC, Taiwan. To provide the best guide line for designing the pilot test program, we build a simulation model for YHS field to determine the most suitable CO2 injection well, monitoring and production wells, total CO2 injection volume and enhancd gas recovery from CO2 sequestration. Results show that the best scenario for the pilot test is: using YHS-6 as a CO2 injector, YHS-7 as a monitor and producer, and injecting a total of 50 to 100 thousand tons of CO2 in two years. This scenario should maximize the gas and condensate recovery. The scenario does not require injection well workover, incurs lowest cost, and thereby maximizes the economic value for the whole project. An economic analysis result showed that the NPV, IRR, and payout will be 62 million NT dollars, 13.6%, and 6.66 years, respectively. Our estimation indicates that the CO2 storage capacity is at least 3.0 million tons for the entire depleted YHS gas field.

被引用紀錄


林器暉(2014)。永和山構造現地應力與注氣引發斷層再活動評估〔碩士論文,國立中央大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0031-0412201512015610

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