收稿日期: 2005-10-13
修回日期: 2006-01-19
网络出版日期: 2006-04-20
THERMAL SIMULATION OF ORDOVICIAN SOURCE ROCK OF FORELANDBASIN IN WESTERN ORDOS
Received date: 2005-10-13
Revised date: 2006-01-19
Online published: 2006-04-20
孔庆芬,王可仁 . 鄂尔多斯盆地西缘奥陶系烃源岩热模拟试验研究[J]. 天然气地球科学, 2006 , 17(2) : 187 -191 . DOI: 10.11764/j.issn.1672-1926.2006.02.187
Thermal simulation experiments has carried out on mudstone, marlite and limeston e, three kinds of typical Ordovician source rock samples, from foreland basin of western Ordos, not only revealed the evolve process and characteristics of hydr ocarbon generation indoors but also provided important parameter for calculation the amount of hydrocarbon generation in this region. According to the results, mudstone has the greatest potential yield of gas hydrocarbon, up to 527 m3/tTOC, next marlite, 512 m3/tTOC, and limestone has the poorest, o nly 267 m3/tTOC; the yield of gas hydrocarbon is tightly correlated wi th the thermal maturity of source rock, higher thermal evolution degree is advan tageous to gas hydrocarbon generation; the yield of liquid hydrocarbon of the th ree experimental samples are all low, the peak of oil generation is obscure, and the liquid hydrocarbon curve present as the shape of tundish, which could be co rrelated with evolution stages and lower content of organic matter.
Key words: Ordovician; Source rock; Thermal simulation.
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