| AHDEB油田白垩系油藏油气充注期次的流体包裹体证据 |
| |
| 引用本文： | 伏美燕,刘榧,邓虎成,黄婷婷,王浩.AHDEB油田白垩系油藏油气充注期次的流体包裹体证据[J].地球科学,2015,40(7):1187-1196. |
| |
| 作者姓名： | 伏美燕 刘榧 邓虎成 黄婷婷 王浩 |
| |
| 作者单位： | 1.成都理工大学能源学院, 四川成都 610059 |
| |
| 基金项目： | 国家自然科学青年基金项目 |
| |
| 摘 要： | 伊拉克AHDEB油田油藏成藏规律对油田后期开发具有重要意义, 与埋藏史相结合的流体包裹体研究是揭示油藏油气成藏期次和时间的有效手段.利用伊拉克AHDEB油田白垩系油藏储层样品对流体包裹体特征进行了分析, 并且通过流体包裹体的显微观察、荧光颜色、单一包裹体的红外光谱和均一温度测定, 结合地质背景对该油田的油充注期次进行了研究.研究表明, 油包裹体以发绿色和黄绿色荧光为主, 少数发浅黄色和黄褐色荧光.油包裹体的显微傅立叶红外光谱测定结果计算的CH2a/CH3a、Xinc、Xstd可划分油的成熟度, 表明存在两种成熟度的油.最后, 根据均一温度测定结果, 结合埋藏史和热史, 认为该油田可能存在4期油充注成藏相关的流体活动: 第1成藏期发生在95.0~96.5Ma, 相当于晚白垩世早期; 第2成藏期为71.0~78.5Ma, 相当于晚白垩世晚期, 第1期和第2期烃源岩排烃规模小, 产生中-重质油, 后期遭受氧化而形成沥青; 第3成藏期发生在14.0~15.0Ma, 相当于中中新世, 处于生排烃高峰期, 为主要成藏期; 第4期发生在10.0Ma左右, 与第3期为多幕连续充注.
|
| 关 键 词： | AHDEB油田 白垩系 烃类 流体包裹体 红外光谱 石油地质 |
| 收稿时间： | 2014-09-25 |
Hydrocarbon Charging Period of Cretaceous Reservoirs in AHDEB Oil Field:Evidence from Fluid Inclusion |
| |
| Fu Meiyan,Liu Fei,Deng Hucheng,Huang Tingting,Wang Hao.Hydrocarbon Charging Period of Cretaceous Reservoirs in AHDEB Oil Field:Evidence from Fluid Inclusion[J].Earth Science-Journal of China University of Geosciences,2015,40(7):1187-1196. |
| |
| Authors: | Fu Meiyan Liu Fei Deng Hucheng Huang Tingting Wang Hao |
| |
| Abstract: | The uncertainty of pool-forming rule of AHDEB oilfield in Iraq has influenced the oilfiled development. Combining with burial history, the study of fluid inclusion is effective to reveal the hydrocarbon charging period and time. The samples collected from Cretaceous reservoirs of AHDEB oil field in Iraq were used to study the characteristics of fluid inclusion. Based on the observation of thin sections and the fluorescence color, measurement of μFT-IR and homogenization temperature, combining with analysis of geologic setting, the hydrocarbon charging periods were researched. The results show that the fluorescence colors of oil inclusion were mainly green and yellow-green, while minor light yellow and yellowish-brown. It is found by the measurement of μFT-IR of oil inclusion that there are 2 types of maturity based on the value of CH2a/CH3a, Xinc and Xstd. The data of burial history, thermal evolution history and the homogenization temperature indicate that there might be four terms of oil accumulation. The first term of oil charging occurred at 95.0-96.5Ma, equivalent to early Late-Cretaceous, and the second term occurred at 71.0-78.5Ma, equivalent to late Late-Cretaceous, which were consistent with the small scale of hydrocarbon generation by producing heavy oil that in turn was oxidized to asphalt. The third term of oil charging occurred at 14.0-15.0Ma, equivalently Middle Miocene, which was the main accumulation, being consistent with the peak of hydrocarbon generation. The forth term occurred at 10.0Ma, which was the charging event related to the third term. |
| |
| Keywords: | AHDEB oil field Cretaceous hydrocarbons fluid inclusion infrared spectra petroleum geology |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《地球科学》浏览原始摘要信息 |
|
点击此处可从《地球科学》下载全文 |
|
