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| 1 | 一种考虑密度因素的广义ΔlogR法预测总有机碳含量——以渤中凹陷西南部陆相深层烃源岩为例显示文摘烃源岩总有机碳含量(TOC)的预测是烃源岩有机质丰度评价的重要一环.为解决传统ΔlogR方法应用于陆相深层烃源岩误差较大的问题.本文以ΔlogR法为基础,提出了一种考虑密度因素的广义ΔlogR法预测TOC.传统ΔlogR方法是一种基于测井曲线(声波、电阻率等)和成熟度参数(LOM)的预测TOC的方法,可以获得纵向上连续的有机碳分布,并且在国内外多个地区取得了较好的效果.但是研究表明,由于陆相深层烃源岩受到压实作用等影响,传统ΔlogR方法预测的结果不理想.干酪根有机质的密度远低于烃源岩基质密度,将考虑密度因素的广义ΔlogR法预测TOC的方法应用于渤中凹陷西南部东营组和沙河街组烃源岩,对其TOC进行分段预测,并与传统ΔlogR法、敏感测井多元回归方法预测结果进行对比,结果表明,研究区使用该方法的效果要优于其他两种方法.该方法拓展了传统ΔlogR法的适用范围,为烃源岩TOC的预测提供了新的思路和方法. | 王祥 马劲风 张新涛 王震亮 王飞龙 王浩璠 李琳 | 2020 | 地球物理学进展2020，35，4： | 16 |
| 2 | 考虑自然电位的广义Δlog R模型及其在预测总有机碳含量的应用显示文摘为精准预测吐哈盆地中二叠统桃东沟群烃源岩总有机碳含量,基于研究区内多口钻井测井参数与有机质丰度之间的关系,对广义Δlog R模型进行拓展,提出了一种考虑自然电位广义Δlog R模型。研究发现:研究区内烃源岩与电阻率密度呈弱正相关,与自然电位、自然伽马和密度呈弱负相关,与中子相关性不太明显。通过与其他方法对比,优选出考虑自然电位的广义Δlog R模型的相关系数(R^(2))为0.8042,平均误差率为15.58%,是预测区内中二叠统桃东沟群烃源岩总有机碳含量的最佳方法。该成果将为研究区烃源岩测井评价等工作提供依据。 | 缪欢 王延斌 麻振涛 国建英 张雨健 | 2022 | 矿业科学学报2022，7，4： | 2 |
| 3 | Organic geochemistry and source rock potential assessment of Late Paleocene Patala Formation in Margalla Hill Range,North Pakistan显示文摘Black shales of the Paleocene Patala Formation are proven source rocks for conventional hydrocarbons in southern Potwar Basin of Pakistan and are assumed to be effective source rocks towards north in the Margalla Hill Range of Pakistan.In this regard,the current study focuses on source rock geochemistry of the Paleocene Patala Formation to assess its source rock potential,organic matter types and thermal maturity levels in the Margalla Hill Range of North Pakistan.Source rock generative potential,kerogen types and thermal maturation of the analysed rock samples were unraveled by using Rock-Eval pyrolysis T_(max),TOC(total organic carbon)and vitrinite reflectance(R_(0))analyses.TOC analysis coupled with S_(2) yield revealed poor to fair source rock quality encountered within the formation.The pyrolysis T_(max) vs Hydrogen Index(HI),showed mostly Type Ⅲ kerogen dominated by thermally immature to mature organic matter.The HI and genetic potential is low and revealed poor hydrocarbon generation potential of the formation.The S_(1) vs TOC plots confirm the indigenous nature of the hydrocarbons hosted by Patala Formation.The vitrinite reflectance outcomes indicated immature to mature source rock beds lying in dry gas zone.The HI and OI signatures and abundance of Type Ⅲ kerogen are indicating dominance of terrestrial organic matter within the formation.Overall,the investigated Patala Formation exposed at the studied section of Margalla Hill Range,Pakistan acts as a poor source rock unit for liquid hydrocarbon generation but holds prospects for dry gas generation in the study area. | Shams M.Kamran WANG Pujun Nasar Khan Muhammad Hassan | 2021 | Global Geology2021，24，4： | 0 |
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