Characteristics and Simulation Experimental Study of Generation and Conservation of Deep Carbonate Oils and Gases
-
摘要: 塔里木盆地具有地温梯度低和油气藏埋藏深度大的特点，深埋引起的高压利于油藏保存，7000ｍ的地层温度＜１６５℃，低于通常认为石油形成温度上限，油藏保存的深可以达到7000ｍ。铁岭灰岩高温高压模拟实验表明，高压抑制油向气转化。塔里木盆地古生界海相碳酸盐岩晚期二次生烃使生油窗延伸至Ｒｏ１.５%。Abstract: The buried depth of oil and gas reservoirs is deep and over half of it is distributed in the depth of >4 500 m in the Tarim Basin. Deep burial causes high geopressure which is beneficial to the conservationof oil and gas reservoirs. The geotemperature at 7 000 m depth in the Tarim Basin is lower than 165below the lower limit of oil-generating temperature, so the conservation depth of oil and gas reservoirs can reach to 7 000 m. The Paleozoic craton basin of the Tarim Basin is characterized by the late secondary hydrocarbongeneration, which is important to the oil and gas reservoirs from the Paleozoic source rocks of the TarimBasin. TheRo> value of oil-genrating high peaks is about 1.2%and the range of the oil-generating win-low can be extended to Ro1.5% The Tieling limestone simulation experiment with high temperature and pressure demonstrated thathigh pressure is beneficial to the conservation of liquid hydrocarbons in carbonate rocks and retards the change of oil to gas. The simulation experiment also indicated that in the deeply buried condition the latesecondary hydrocarbon generation can take place in carbonate rocks because of high temperature andpressure.
-
[1] 1 Кирюхин Л Г Л олк евская ? И.Свех лубуРен и и Ронов нефте азнозности Сов Геолоия,1991,(8):37-43.
2 Price L C, W enger L M. influence of pressure on petroleum generation and maturation as suggested by aque-ous pyrolysis. In Advanczs in Orgardc Geohcemistry 1991 Edited by Eckardt C B. Maxwell J H. Lamer S Hand Man-ning D A C). Org Geochem, 1992, 19(1一3): 141-159.
3 范善发.周中毅.韩林林.压力对盆地深部有机质演化影响的 模拟实验研究.全国第五届有机地球化学学术讨论会论文集. 南京:江苏科学技术出版社.1994.375-380.
4 Tissot B P Hecentadvanczsinpetroleumeochemistry applied to hydrocarbon exploration. AAPG Bull, 1984, 88(5): 545-583.
5 Johnsson M ,J et al. Thermal maturity patterns in Alaska im-plications for tectonic evolution and hydrocarbon potential. AAPG Bull, 1993, 77(11): 1874-1803.
6 周中毅盛国英.塔里术盆地古地温与深部找油(气)前景.地 球化学.1985, (3): 236-241.
7 范善发周中毅.解启东等.塔里术盆地下古生界高成熟酪 根生烃潜力的评估.地球化学，1996. 25(5): 112-120. -
点击查看大图
计量
- 文章访问数: 505
- HTML全文浏览量: 24
- PDF下载量: 482
- 被引次数: 0
下载:
