摘要
选择川西孝泉—新场气田和松辽南部后五家户气田为研究区,采集14口井井中化探样品,测试热释烃、酸解烃、荧光等指标,进行了烃类垂向微运移的研究。由于岩石物性的影响,热释烃、荧光等指标显示不同程度的正向梯度,但酸解烃指标在油气田井中局部层段垂向分布特征显示负向梯度,或与其它化探指标没有相关关系。建立相应的微渗漏模型,并进行动力学模拟,模拟结果和实测资料较吻合。
The XiaoquanXinchang Gas Field in west Sichuan and the Houwujiahu Gas Field in south Songliao Basin were selected as the study areas, and core samples from 14 wells were analyzed for such indices as heatingreleased hydrocarbon, acidextracted hydrocarbon and fluorescence so as to study vertical hydrocarbon micromigration. Being influenced by the physical properties of rocks, heating-released hydrocarbon and fluorescence indices show positive gradient in varying degrees. Acidextracted hydrocarbon concentration, however, shows negative gradient in some sectors of oil and gas wells or is not correlative with other geochemical indices. Based on these results, the authors established the hydrocarbon microseepage model and made dynamic simulation. The results of simulation coincide with the measured data.
出处
《物探与化探》
CAS
CSCD
2003年第6期458-461,共4页
Geophysical and Geochemical Exploration
关键词
油气微渗漏
化探指标
动力学模拟
oil and gas microseepage
geochemical index
features
dynamic simulation
