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題 名 | 八掌溪氣田生產動態預測研究=The Dynamic Reservoir Simulation for PachunChi Gas Reservoir |
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作 者 | 李中和; 蔡鏗榮; | 書刊名 | 探採研究彙報 |
卷 期 | 21 1998.11[民87.11] |
頁 次 | 頁477-502 |
分類號 | 457.2 |
關鍵詞 | 模型; 網格; 歷史調諧; 水驅; 未來生產動態預測; Simulation; Water influx; Reservoir heterogeneity; |
語 文 | 中文(Chinese) |
中文摘要 | 配合臺探總處及嘉義營業處對八掌溪氣田所作之生產規劃作業,為提供剩餘可採 蘊藏量、氣田產能、生產井合理產率、未來生產預測等資料,以作為生產規劃之依據,乃進 行本研究。 本研究只針對目前仍有生產的 PCC-3 號井所處之 K 斷層下盤觀音山砂岩地塊及 PCC-9 與 PCC-12 號井所處之 L 斷層下盤北寮層地塊等兩個地塊進行油氣層模擬及試井工作。 模擬結果顯示兩個地塊均有水侵現象以補充部份氣層壓力,北寮層地塊之氣水界面應在海平 面下 2520 公尺以下,以此假設估算此地塊之原始埋藏量約為三億一千萬立方公尺,生產動 態預測結果顯示各產率之表現差異不大(日產三萬到六萬立方公尺不等),其中以日產六萬 立方公尺之表現稍好,預估九號及十二號井合計尚可採五千五百萬立方公尺之天然氣。 而觀音山砂岩地塊之模擬,目前仍未達到歷史調諧符合之地步,此乃因受到太多地質不確定 性因素之影響,尤其是儲氣砂體之範圍與連續性、氣水界面、含水飽和率等因素,因此尚無 法進一步作生產動態預測,現正積極尋找新的地質資訊與佐證資料以求突破,期望近期內有 好的模擬結果可提供現場單位參考應用。 |
英文摘要 | To obtain an optimum production scheme for PaChunChi gas reservoir, several simulations have been performed. The results of these simulations will be used as a important reference for the future development for this reservoir. We chose two areas for the simulation. One is area near k-fault, which contained PCC-3 well. Another is the L-fault, which contained PCC-9 and PCC-12 wells. From our results, both areas show water influx to maintain reservoir pressure. The water gas contact in the Pa-Liao formation should be lower than 2520 m. Under this assumption, we estimate that there are 3.1 billion cubic meter of gas as original gas. It is predicted that well PCC-9 and PCC-12 together can produce 0.55 cubic meter of gas. For the Quin-in formation, history match did not show good agreement with field data. It might be caused by thew uncertainty of reservoir heterogeneity. For examples, the continuity of the formation, water and gas contact, and water saturation distribution are the main factors for the uncertainty. We are looking for more detailed information to make up the insufficient data to improve the history matches. |
本系統中英文摘要資訊取自各篇刊載內容。