摘要
用不同方法确定了扒搂沟煤型干酪根的溶胀比,计算模拟了石油的初次运移。结果显示,溶胀比决定了源岩的留烃潜力;石油的初次运移受源岩溶胀比和生烃能力的控制。Ⅲ型干酪根只有少量液态烃排出,除受Ⅲ型干酪根留烃能力制约外,还与生成液态烃的数量有关。溶胀实验可以确定和模拟源岩的留-排烃能力,是研究石油初次运移及其质量分馏的新途径。
The solvent swelling ratio of the kerogen from Palougou Coal was determined by two methods, and then the oil primary migration was modeled. The results show that the swelling ratio controls the retention potential of oil and the oil primary migration is decided by both the swelling ratio and hydrocarbon generation capability. A little liquid hydrocarbon was expulsed from Type Ⅲ kerogen, which is associated with its swelling and also with liquid hydrocarbon quantity generated during maturity. By the solvent experiment the retention potential of liquid hydrocarbon in source rock and the oil expulsion potential from source rock can be determined and modeled, which is a new technique for oil primary migration and petroleum fractionation.
出处
《地球化学》
CAS
CSCD
北大核心
2007年第4期351-356,共6页
Geochimica
基金
国家自然科学基金(40572083)
关键词
溶胀
石油
初次运移
干酪根
solvent swelling
petroleum
primary migration
kerogen
