隆鄂尼地区油砂地质及地球化学特征

发布时间：2018-03-04 07:02

本文选题：隆鄂尼　切入点：油砂　出处：《大庆石油地质与开发》2017年01期 　论文类型：期刊论文

【摘要】：通过对隆鄂尼地区油砂的孔隙度及含油率进行统计,研究了隆鄂尼地区油砂地质特征。研究发现,研究区为低孔超低渗储层,与国内典型油砂矿相比含油率较高、油气保存条件好,是油砂勘探开发有利区域。选取12件隆鄂尼地区LK-5井的油砂样品进行色谱—质谱分析,进一步了解研究区地化特征。实验结果表明:隆鄂尼地区油砂受到微生物降解,降解程度属1级;油砂与源岩母质类型相关性好,母质来源于海相有机质,母质类型属混合源,且高等植物的贡献较大;油砂样品的有机质沉积环境为咸水还原海相环境;油砂油达到成熟阶段。研究成果为隆鄂尼地区油砂资源评价提供了科学依据。
[Abstract]:Based on the statistics of the porosity and oil content of oil sands in Longni area, the geological characteristics of oil sands in Longni area are studied. It is found that the study area is a low-porosity and ultra-low permeability reservoir, and its oil content is higher than that of typical oil sands in China. It is a favorable area for oil sand exploration and development. Twelve samples of oil sand from LK-5 well in Longni area are analyzed by chromatography-mass spectrometry. The results show that the oil sands in Longni area are degraded by microorganism, and the degradation degree is of grade 1. The oil sand has good correlation with the source rock parent material type, the parent material comes from marine organic matter, and the parent material type belongs to mixed source. The organic matter sedimentary environment of oil sand samples is saltwater reduced marine environment and oil sand oil reaches mature stage. The research results provide scientific basis for evaluation of oil sand resources in Longni area.
【作者单位】：甘肃省油气资源研究重点实验室/中国科学院油气资源研究重点实验室;中国科学院大学西北生态环境资源研究院;中国地质科学院地质力学研究所;中国地质大学地球科学与资源学院;
【基金】：中国科学院2012年度“西部之光”人才计划支持项目“马海地区深层构造特征及油气藏成因类型研究”(1308RJZA310) 甘肃省重点实验室专项(1309RTSA041)联合资助
【分类号】：P618.13

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