【摘要】：黃陵礦區(qū)屬于煤油氣共生礦區(qū),區(qū)內(nèi)多個(gè)工作面發(fā)生底板氣異常涌出。為探明底板異常涌出氣體的成因類型,采集煤層底板氣樣44個(gè)、2號(hào)煤層氣樣12個(gè),進(jìn)行甲烷碳同位素(δ13C1)、乙烷碳同位素(δ13C2)及甲烷氫同位素(δ4CHD)等地球化學(xué)參數(shù)測(cè)試。測(cè)試分析結(jié)果表明,煤層底板異常涌出氣不是來(lái)源于2號(hào)煤層,其甲烷碳同位素(δ13C1)測(cè)值為 52.20‰~ 42.80‰,乙烷碳同位素(δ13C2)值為 37.20‰~ 29.01‰,成因類型屬油型氣。通過(guò)對(duì)區(qū)域烴源巖分布及地層裂隙系統(tǒng)的分析,認(rèn)為黃陵礦區(qū)底板異常涌出氣可能來(lái)源于三疊系延長(zhǎng)組烴源巖。
[Abstract]:Huangling mining area belongs to coal, oil and gas cogeneration area. In order to find out the genetic types of abnormal gas emission from the floor, 44 gas samples from the floor of coal seam and 12 samples from coalbed methane from No. 2 coal bed were measured for methane carbon isotopes (未 13C1), ethane carbon isotopes (未 13C2) and methane hydrogen isotopes (未 4CHD). The test results show that the abnormal gas emission from coal floor is not from No. 2 coal seam. The measured values of methane carbon isotope (未 13C1) and ethane carbon isotope (未 13C2) are 52.20 鈥，

本文編號(hào)：2216699