一、伊通盆地油苗煤炭工业部东北煤田联合公司地质局102队在伊通盆地进行煤田勘探,于1985年3月在长春东南60km 的岔路河地区钻探853-3孔,取心发现了巨厚的稠油油砂。油砂产于下第三系中,为灰绿色泥岩、砂质泥岩所夹。稠油砂岩为中粗粒、疏松,含油饱满,埋深58.8—1000.84m,共18层总厚31.94 m,其中含油饱满的有12层共厚20.8m。1000.39m 以下由于钻机能力的限制未能向下钻进。 I. Yitong Basin Oil Mines Department of Coal Industry Dongbei Coalfield United Geological Bureau 102 teams in the Yitong Basin coal exploration, in March 1985 in the Changchun 60km southeast of Chaluhe drilling 853-3 holes, coring found giant Thick heavy oil sands. Oil sands produced in the next Tertiary, as gray-green mudstone, sandy mudstone sandwiched. Heavy oil sandstone is medium-coarse, loose and full of oil, with a buried depth of 58.8-1000.84m, with a total thickness of 31.94 m in 18 layers, of which 12 layers of oil-full have a total thickness of 20.8 m. Below 1000.39m, the drilling machine failed to drill down due to its capacity.