- 期刊
台灣中部複雜Ｔ氣田原始氣體埋藏量探討
The Evaluation of Original Gas in Place for a Complex T Reservoir
摘要
中油公司為穩定台灣地區天然氣之供應，並調節因季節性及每日尖離峰用氣量之不同，計劃將中部Ｔ氣田轉為地下儲氣窖，進行天然氣之注儲並調節供氣生產。本研究主要目的為評估T氣田之原始氣體埋藏量，以供Ｔ氣田地下儲氣窖未來生產動態模擬之參考。Ｔ氣田自1965年開始生產，1989年有三口井改為注／產氣井，1998年加鑽六口注／產氣井，於2000年地質構造圖局部進行修正，總計生產井共37口（不含6口注／產氣井），本研究乃蒐集該氣田之所有氣井相關資料與歷年來各井油氣之生產數據，配合修正的地質資料，利用物質平衡法評估其原始氣體埋藏量。 由於T氣田受許多斷層分割，地質構造複雜，首先依據修正後的地質資料，將Ｔ氣田區分為11個地塊，分析各地塊內各井之生產資料及不同時間所測得之井底靜壓資料，根據壓力及地質資料，探討各相鄰地塊間之連通性，接著將11個地塊區分為4區域並整合各區域內所有氣井之生產及壓力資料，最後進行原始氣體埋藏之估算。經由本研究所評估之結果，T氣田1A層原始氣體埋藏量約為370億立方公尺（包含少量１Ａ”層原始氣體埋藏量。
並列摘要
To steadily support the gas for the Taiwan market and meet the requirement difference between the peak and low season, the T reservoir has been converted into a gas storage field. It is very important to accurately evaluate the original gas in place (OGIP) for T field for the further study of dynamic performance simulation. The T field started production at 1965. In 1989, three production wells was converted into withdraw/injection ones. Six new wells were drilled in 1998. In total, there are 37 wells have production histories. Based on these data and newly modified geological top map, a material balance model was applied to calculate OGIP. Since several faults cut through T field, the field can be divided into 11 sub-blocks. Using the pressure data and production histories, these 11 blocks can be merged into 4 areas. The material balance model was then applied to these 4 areas. From our analyses, the OGIP of T field is around 370 billion m3.
被引用紀錄
延伸閱讀
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