雲林沿海地區地下含水層特性之研究

本研究目的是研究雲林沿海地區含水層的最深深度、分層以及各層之特性。本研究分析了台西二號井、台西四號井、台西五號井、台西八號井、金湖一號井以及崙豐一號井等六口井的井測及鑽井資料。由地層電阻圖、頁岩質含量圖以及鑽井地質報告等綜合研究分析顯示：雲林西南沿海地區自地表至深度1600公尺的地層，可以分為三層：淡水層、漸變層以及鹼水層。淡水層之底部大約位於地表以下511至595公尺之間（屬於頭嵙山層或卓蘭層），漸變層的深度區間在511至1015公尺之間（自頭嵙山層或卓蘭層之底部至觀音山砂層頂部），其中含有一個厚度約為95～150公尺的頁岩質地層，此頁岩質地層可能減緩或阻隔含水層在垂直方向的連通或混合。在漸變層之下有一鹹水層，其頂部深度約在744～1015公尺，其底部介於1221至1537公尺之間。

關鍵字

井下電測；地下含水層；淡水層；漸變層；鹹水層

並列摘要

The purpose of this study was to characterize the properties of aquifers including to identify the depths of aquifers in the Yun-Lin coastal area. The well logging data of six wells (Ths-2, Ths-4, Ths-5, Ths-8, Gh-1, and Lf-1) were analyzed in this study. Based on the available information, three zones such as, fresh water, transition, and saline water zones in the formation from surface to the depth of 1600 meters were identified. The depth of bottom of fresh water zone was estimated in the ranging of 511 and 595 meters (in Tonkoshan Formation). The interval of transition zone were approximately estimated between 511 and 1015 meters (in Tonkoshan Formation or Chalan Formation to top of Kuanyinshan Sandstone). In transition zone, there was a shaly formation about 95 to 150 meters in thickness. This shaly formation might retard or cut off the connection of aquifers in vertical direction. The top saline water zone which was below the transition lay in the depths ranging from 744 to 1015 meters. The bottom of saline water zone lay in the depth ranging from 1221 m to 1537 m.

並列關鍵字

Well logging ； Aguifer ； Fresh water zone ； Transition zone ； Saline water zone

國際替代計量

雲林沿海地區地下含水層特性之研究

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