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Factors controlling hydrocarbon reservoir formation and distribution and prediction of favourable areas in the Jurassic Toutunhe Formation in the Fudong slope, Junggar Basin, China

机译：准gar尔盆地阜东斜坡侏罗系头屯河组油气成藏控制因素及有利区预测

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摘要

In recent years, many oil and gas reservoirs have been discovered in the Jurassic Toutunhe Formation in the Fudong slope, Junggar Basin. The total reserve in the formation is nearly 100 million tonnes, indicating huge exploration potential in the area. However, the main factors controlling the hydrocarbon accumulation remain unclear, and the mechanisms of hydrocarbon accumulation and enrichment are controversial. In this work, by studying the mechanism and main factors controlling hydrocarbon accumulation in the Toutunhe Formation in the Fudong area, a quantitative model of the reservoir rock and caprocks that control hydrocarbon distribution was constructed, the critical conditions for hydrocarbon accumulation were determined and favourable exploration areas were predicted. The results indicated that the oil in the Toutunhe Formation was derived from both Permian and Jurassic source rocks, the oil migrated from west to east after generation and both reservoir rock and caprock controlled the formation and distribution of oil reservoirs. The oil- bearing capacity improved with increases in the storage coefficient and caprock thickness. Accumulation did not occur when the reservoir rock and caprock index (RCI) was <= 0.5 but was favoured when the values were higher; this factor was the critical condition for hydrocarbon accumulation.
机译：近年来，在准gar尔盆地阜东斜坡侏罗系头屯河组发现了许多油气藏。该地层的总储量接近1亿吨，表明该地区具有巨大的勘探潜力。然而，控制油气成藏的主要因素仍不清楚，油气成藏和富集的机理尚有争议。通过研究抚东地区头屯河组油气成藏的机理和主要因素，建立了控制油气分布的储集岩和盖层定量模型，确定了油气成藏的关键条件，并进行了有利的勘探。区域被预测。结果表明，头屯河组油源于二叠系和侏罗系烃源岩，油在生代后由西向东运移，储集岩和盖层共同控制了油藏的形成和分布。随着储藏系数和盖层厚度的增加，含油能力提高。当储层岩石和盖层指数（RCI）<= 0.5时，不会发生积累，但当储层的岩石和盖层指数较高时，则倾向于积累；这个因素是油气成藏的关键条件。

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  • 来源
    《Energy Exploration & Exploitation》 |2015年第6期|891-907|共17页
  • 作者

    Pang Hong; Pang Xiongqi; Zhou Liming; Xiang Caifu; Hu Tao;

  • 作者单位

    China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing 102249, Peoples R China;

    China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing 102249, Peoples R China|China Univ Petr, Basin & Reservoir Res Ctr, Beijing 102249, Peoples R China;

    China Univ Petr, Basin & Reservoir Res Ctr, Beijing 102249, Peoples R China;

    China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing 102249, Peoples R China|China Univ Petr, Basin & Reservoir Res Ctr, Beijing 102249, Peoples R China;

    China Univ Petr, Basin & Reservoir Res Ctr, Beijing 102249, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Junggar Basin; Fudong slope; Toutunhe Formation; Main controlling factors; Favourable areas prediction;

    机译：准gar尔盆地抚东斜坡屯屯河组主要控制因素有利区预测;

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