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测井资料在沉积物粒序反演中的应用
引用本文:赵军,肖承文,王淼,陈伟中. 测井资料在沉积物粒序反演中的应用[J]. 地球科学, 2013, 38(4): 792-796. DOI: 10.3799/dqkx.2013.077
作者姓名:赵军  肖承文  王淼  陈伟中
作者单位:1.西南石油大学资源与环境学院, 四川成都 610500
基金项目:国家"十一五"重大专项"塔里木盆地库车前陆冲断带油气勘探开发示范工程"
摘    要:岩石颗粒大小及其粒序是沉积岩主要特征, 是沉积物沉积环境和古地理分析的主要评价指标.同时, 也是影响沉积物成岩环境及其物性的主要因素.由于PDC钻头的广泛应用, 使得录井岩性及其粒级的识别存在较大的误差, 制约了地质研究的深入开展.结合岩心粒度分析资料, 利用自然伽马、中子、密度、声波及电阻率曲线, 通过测井地质分析, 提取对地层岩性及粒度响应灵敏的M、N及其深浅电阻率比值等参数, 建立了反演沉积物粒度的模型, 根据现场资料的处理以及与岩心资料的对比, 结果表明, 该模型能够较好地反演沉积物的粒度, 为地质研究提供较为准确的连续粒序剖面. 

关 键 词:测井   沉积岩   粒度分析   粒序剖面   反演   石油地质
收稿时间:2012-12-28

Application of Logging Data to the Sediment Size-Grading Inversion
ZHAO Jun,XIAO Cheng-wen,WANG Miao,CHEN Wei-zhong. Application of Logging Data to the Sediment Size-Grading Inversion[J]. Earth Science-Journal of China University of Geosciences, 2013, 38(4): 792-796. DOI: 10.3799/dqkx.2013.077
Authors:ZHAO Jun  XIAO Cheng-wen  WANG Miao  CHEN Wei-zhong
Affiliation:1.School of Resources and Environment, Southwest Petroleum University, Chengdu 610500, China 2.Research Institute of Tarim Oilfield Company, CNPC, Kuerle 841000, China
Abstract:Rock particle-size and grading are the main features of sedimentary rocks, and also the main indicators to evaluate the deposition environment and ancient geographical analysis of the sediment. Meanwhile, it's also the controlling factors that influence sediment's diagenetic environment and physical property. Because of the widely use of PDC bit, there is a greater error between logging lithology and size grade, which has restricted the further development of geologic research. By utilizing GR, CNL, DEN, DT and resistivity curves, we abstract the parameters M, N, which is sensitive to particle size and lithology, and another parameters-the ratio of deep resistivity and shallow resistivity, combining with the particle-size analysis data of core. Then, we establish the inversion model for particle size of sediment through logging geology analysing. The field data processing and contrast of core data has proved this model feasible in inverting the sedimentary particle-size, and providing a sequential size graded profile. 
Keywords:well logging  sedimentary rocks  particle-size analysis  grading profile  inversion  petroleum geology
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