渤海灣盆地陳家莊油田陳22塊微生物異常分布研究
發(fā)布時間:2018-09-10 10:04
【摘要】:為探索油氣藏上方微生物異常分布,按照從線到面的研究思路,采集渤海灣盆地陳家莊油田陳22塊油氣藏上方土壤樣品469個,采用MPN法檢測出樣品中油氣指示微生物的數(shù)量并研究其分布特征。結(jié)果顯示,在聯(lián)井剖面上,甲烷氧化菌和烴氧化菌2種油氣指示微生物異常區(qū)與對應油井位置有很高的吻合度,呈頂端異常,剖面南北兩端具有明顯的背景區(qū),表明了2種油氣指示微生物對油氣藏烴類微滲漏的指示性是有效的。進一步對本區(qū)塊油氣微生物進行了面上精查,結(jié)合地質(zhì)和鉆井信息,解析了微生物異常與下覆油氣藏分布的響應關系,結(jié)果表明地表土壤中油氣微生物對下覆油氣藏的分布有很好的指示作用,同時對鉆井部署也有一定的參考價值。
[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
本文編號:2234134
[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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