准噶尔盆地吉木萨尔凹陷芦草沟组页岩油储层岩性解释方法研究  

Study on the“Four-property”relationship of shale oil reservoirs in Lucaogou formation,Jimusa'er Dzungar basin

作　　者：唐建云[1,2,3,4] 魏新 宋红霞 梁成钢 Tang Jianyun;Wei Xin;Song Hongxia;Liang Chenggang(Karamay Vocational and Technical College,Karamay 834000)

机构地区：[1]克拉玛依职业技术学院,新疆克拉玛依834000 [2]中国石油大学(北京)克拉玛依校区,新疆克拉玛依834000 [3]西北大学地质学系/大陆动力学国家重点实验室,陕西西安710069 [4]江西省放射性地学大数据技术工程实验室,江西南昌330013 [5]中国石油吐哈油田分公司勘探开发研究院,新疆哈密839009 [6]中国石油新疆油田分公司吉庆油田作业区,新疆吉木萨尔831700

出　　处：《石化技术》2023年第4期169-172,共4页Petrochemical Industry Technology

基　　金：克拉玛依市科技计划项目“吉木萨尔芦草沟组页岩油可动油下限实验于油层分类标准研究(编号:2022hjcxrc0018);克拉玛依市科技计划项目“新疆石油石化领域职业教育产教融合对策研究”(编号:2022hjrkx0002);中国高校产学研创新基金“面向高职大数据技术专业的课程体系和专业建设研究”(编号:2021RYC02001);中国高校产学研创新基金“基于大数据及人工智能的井位优化及远程踏勘平台”(编号:2021LDA06005)联合资助。

摘　　要：为进一步提高准噶尔盆地吉木萨尔凹陷芦草沟组页岩油储层的岩性解释精度,通过岩石物理响应正演、岩石物理等实验,剖析了测井曲线组合在反映骨架密度、粒度及渗透性等方面的适用性,建立了三类测井曲线组合参数解释方法(三孔隙度幅度差dL1、声波-密度幅度差dL2、电阻率幅度差dL3)对研究区主要岩性进行识别。研究结果表明:1)该方法的识别精度要高于岩心观察结果、低于薄片鉴定,对于厚层云岩、粉砂岩、泥岩的识别效果最好,对于薄互层岩性的识别效果较差。2)该方法对砂岩类和泥页岩类的判别精度可达85%,对云岩类的判别精度可达70%,整体上所有岩性的吻合率达80%以上。该研究方法结果可为准噶尔盆地吉木萨尔凹陷芦草沟组页岩油储层的岩性识别提供重要参考价值。In order to further improve the lithology interpretation accuracy of the shale oil reservoirs of the Lu Caogou formation in Lucaogou formation,Jimusa'er Dzungar basin,the petrophysical response forward modeling and petrophysical experiments are carried out in this paper,the applicability of logging curve combination in reflecting skeleton density,grain size and permeability is analyzed,the interpretation methods of three kinds of logging curve combination parameters(three porosity amplitude difference DL1,acoustic-density amplitude difference DL2,resistivity amplitude difference DL3)are established to identify the main lithology in the study area.The results show that:1)the identification precision of this method is higher than that of core observation and lower than that of thin section identification,and the identification effect of thick Yunyan District,siltstone and mudstone is the best,while the identification effect of thin interbedded lithology is poor.2)the accuracy of this method can reach 85%for sandstone and shale,70%for dolomite,and 80%for all lithology.The results of this research method can provide important reference value for lithology identification of the shale oil reservoir of Lucaogou Formation in Lucaogou formation,Jimusa'er Dzungar basin.

关 键 词：“四性”关系 页岩油储层 芦草沟组 吉木萨尔凹陷 

分 类 号：P618.13[天文地球—矿床学]