石油与天然气地质 ›› 1991, Vol. 12 ›› Issue (2): 161-168.doi: 10.11743/ogg19910208

• 论文 • 上一篇    下一篇

凝析油及其伴生气在运移过程中分异的研究——凝析油运移热模拟生气实验研究

史继扬, 向明菊, 洪紫青   

  1. 中国科学院地球化学研究所广州分部
  • 收稿日期:1990-12-27 出版日期:1991-06-25 发布日期:2012-01-16

STUDY ON DIFFERENTIATION OF CONDENSATE AND ITS CO-EXISTING GAS DURING MIGRATION——THERMAL SIMULATION OF CONDENSATE MIGRATION

Shi Jiyang, Xiang Mingju, Hong Zhiqing   

  1. Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou
  • Received:1990-12-27 Online:1991-06-25 Published:2012-01-16

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摘要：

凝析油在地层条件下多呈气相存在,运移过程中除可能有一定的相态转化外,也可能受热力作用进一步裂解成气;温度、介质都对凝析油裂解有促进作用。

关键词: 凝析油, 热裂解, 相态运移, 温度, 介质

Abstract:

Natural gas generated from differentiation of condensate was studied for understanding its change in quantity, constitute and effected factors by experiments of heating and migration. The results demonstrate that the factor causing the cracking of condensate is mainly temperature, and that C1-C4 gas can be easily generated from condensate. As a result, the quantity of gas generated from condensate and C1/C2-4, nonhydrocarbon/alkane of the gas decreases with the increase of temperature. It is also shown by the study that the value of C1/C2-4, nonhydrocarbon/alkane of natural gas increaese with the increase of migration distance, and that the existance of SiO2 media has promoting effect on cracking of the condensate.