著者
小松 直幹
出版者
石油技術協会
雑誌
石油技術協会誌 (ISSN:03709868)
巻号頁・発行日
vol.70, no.3, pp.250-258, 2005 (Released:2007-06-01)
参考文献数
11

Japan hunted oil in Manchuria before World War II. In 1927 Japanese geologist found scattered asphalt in vugs of basalt and quaternary gravel deposits on the north western shore of Hulun Nur (lake), NW Manchuria. Geological Survey of China made a check survey of the area, and found the same asphalt in 1931.After establishment of Manchukuo, geological survey, tortion balance and refraction seismograph survey, and drilling were conducted during 1932-1941. One deep well (1,114 m TD) and 21 core holes were drilled on the northern shore of the lake, but no potential oil were found.That the core hole drilled in Fuxin coal mine hit oil shows in 1938, led to extensive oil exploration program. Geological field party mapped a broad anticline located on east of Fuxin, and the core hole drilled on the anticline recovered some 30 m thick sandstones (100-200 m in depth) impregnating with oil. To explore this oil called on massive drilling campaign, and 47 or more wells were drilled on this anticline, but the reservoir quality was not good enough to establish commercial production. It is noteworthy to point out that the geologists engaged in Fuxin oil exploration thought that the oil came from Jurassic shales deposited in fresh water lake.In 1940 oil shows were found in the water wells near Chengde, and a one-month field check survey was conducted, and mapped a small anticline in Jurassic shales, but no further exploration was conducted.
著者
小松 直幹
出版者
日本地質学会
雑誌
地質学論集 (ISSN:03858545)
巻号頁・発行日
no.34, pp.149-154, 1990-03-30
被引用文献数
4

新潟油田における新第三系の褶曲は, (1)基盤までを含んだ褶曲と, (2)浅層(椎谷層以上の地層)が著しい褶曲を示すのに比べて, 七谷層以下が緩い構造を示すような褶曲とがある。新津・角田の背斜は, 西山期から基盤が東側に断層を伴いながら傾動する事によって作られた基盤を含む構造である。上昇地塊の下盤側に圧縮の応力場ができて, これによって椎谷層中のCompetent層が挫屈して桑山の背斜ができた。宮川〜東山の断面では, 七谷層はゆるい褶曲を示す. 椎谷層より上位の地層は寺泊層中の泥質岩を滑り面として激しい圧縮性の褶曲を示す。西山層の泥質岩の一部は流動によって背斜を形成している。