渤海灣盆地陳家莊油田陳22塊微生物異常分布研究
[Abstract]:In order to explore the abnormal distribution of microorganism above oil and gas reservoir, 469 soil samples were collected from the top of Chen 22 block in Chenjiazhuang Oilfield, Bohai Bay Basin, according to the research ideas from line to surface. MPN method was used to detect the number of oil and gas indicating microorganisms in the samples and to study their distribution characteristics. The results show that the abnormal zones of methane oxidizing bacteria and hydrocarbon oxidizing bacteria have a high coincidence with the corresponding oil well positions, showing the top anomaly, and there is an obvious background area at the north and south ends of the profile. It is shown that two kinds of oil and gas indicator microbes are effective in indicating hydrocarbon microleakage in oil and gas reservoirs. Furthermore, the oil and gas microbes in this block are carefully investigated on the surface. Combined with geological and drilling information, the response relationship between microbial anomalies and the distribution of overlying oil and gas reservoirs is analyzed. The results show that the microorganism of oil and gas in the surface soil has a good indication for the distribution of the underlying reservoirs, and also has certain reference value for drilling deployment.
【作者單位】: 成都理工大學油氣藏地質(zhì)及開發(fā)工程國家重點實驗室;中國石化石油勘探開發(fā)研究院無錫石油地質(zhì)研究所;
【基金】:國家自然科學基金“典型油氣藏上方氣態(tài)烴氧化微生物類群分布異常的深度解析”(41202241)資助
【分類號】:P618.13;P632.4
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