摘要
对应用流体包裹体研究油气充注史中存在的一些问题进行了探讨,并根据流体包裹体资料分析了BZ25-1油田的充注史.BZ25*.1油田发生过3期油气充注:第一期(东营组沉积末)充注了低成熟油(Ro相当于0.5%～0.6%);第二期(明化镇组沉积时期)充注了中等成熟度的油气(Ro相当于0.7%～0.8%);第三期(第四纪)充注了较高成熟度的油气(Ro相当于0.8%～1.0%).包裹体类型及丰度分析表明,第二期油气充注对沙河街组油藏贡献较大;浅层明化镇组油藏为第三期充注.
This paper has discussed some problems in studying hydrocarbon charge history by fluid inclusion technique and analyzed the charge history of BZ25?1 oilfield by using the data. It is believed that there are three stages of hydrocarbon charge for Shahejie formation in BZ25?1 oilfield. During the first charge stage (latest Dongying), lower maturation oil (equivalent to R o 0 5%～0 6%) is filled into traps, and middle maturation oil (R o 0 7%～0 8% ) and higher maturation oil_gas (R o 0 8%～1 0%) are charged respectively during the second(Minghuazhen) and third stage(Quaternary). The types and abundance of fluid inclusion have indicated that the most important contribution to Shahejie reservoir comes from charge during the second stage, and that the shallower Minghuazhen reservoir is charged during the third stage.
出处
《中国海上油气（地质）》
2002年第4期238-244,共7页
China Offshore Oil and Gas(Geology)
基金
中国石油天然气集团公司资助项目
