Carbonaceous Deposits (Carboniferous) and Oil and Gas Potential Prospects of the Magnitogorsk Trough (South Urals, Russia)

A. Tyurin, A. V. Kolomoets, A. Snachev, I. Smoleva, P. Pankrat’ev
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Abstract

The oil and gas potential prospects of the Magnitogorsk trough in the South Urals were studied and substantiated using the data of the geological survey and deep-well drilling. Based on the results of the seismic, gravity, and magnetic explorations, a large unit was detected in the Lower-Middle Carboniferous carbonates of the Kizil zone. The oil and gas blowouts were registered in the drill holes. To further explore the oil and gas potential of the region, the features of black shales were analyzed. It was shown that the Kumak ore field shales are promising sources of oil, depression analogues of the Lower-Middle Carboniferous shelf carbonates. Therefore, we recommend that the black shales of the South Urals should be further studied for their oil and gas potential. The major tasks for future research are as follows: localization of facies of the carbonate sedimentation basin within the Magnitogorsk trough and the East Urals uplift, as well as development of its geological and geophysical model; assessment of the oil and gas potential prospects of the region with the help of the developed model; substantiation of regional CMP seismic surveys.
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俄罗斯南乌拉尔马格尼托哥尔斯克海槽石炭系沉积及油气远景
利用地质调查和深井钻探资料,对南乌拉尔马格尼托格尔斯克海槽油气远景进行了研究和论证。根据地震、重力、磁等勘探结果,在克齐勒地区下-中石炭统碳酸盐岩中发现了一个大单位。石油和天然气井喷被记录在钻孔中。为进一步挖掘本区油气潜力,分析了黑色页岩特征。研究结果表明,库马克矿田页岩是中石炭统下陆架碳酸盐岩的洼陷类似物,具有较好的产油前景。因此,我们建议进一步研究南乌拉尔地区黑色页岩的油气潜力。今后研究的主要任务是:确定马格尼托格尔斯克海槽和东乌拉尔隆起内碳酸盐岩沉积盆地的沉积相定位,建立其地质和地球物理模型;利用开发的模型对区域油气远景进行评价;区域CMP地震调查的证实。
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17 weeks
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