Discussion on classification and naming scheme of fine-grained sedimentary rocks

被引：0
|
作者：
Peng J. [1 ,2 ]
Zeng Y. [1 ,2 ]
Yang Y. [1 ,2 ]
Yu L. [1 ,2 ]
Xu T. [1 ,2 ]
机构：
[1] School of Geoscience and Technology, Southwest Petroleum University, Chengdu
[2] Natural Gas Geology Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu
来源：
Shiyou Kantan Yu Kaifa/Petroleum Exploration and Development | 2022年 / 49卷 / 01期
关键词：
Fine-grained sedimentary rock; Mineral composition; Particle size; Rock classification; Three-level nomenclature;
D O I：
10.11698/PED.2022.01.09
中图分类号：
学科分类号：
摘要：
Based on reviews and summaries of the naming schemes of fine-grained sedimentary rocks, and analysis of characteristics of fine-grained sedimentary rocks, the problems existing in the classification and naming of fine-grained sedimentary rocks are discussed. On this basis, following the principle of three-level nomenclature, a new scheme of rock classification and naming for fine-grained sedimentary rocks is determined from two perspectives: First, fine-grained sedimentary rocks are divided into 12 types in two major categories, mudstone and siltstone, according to particle size (sand, silt and mud). Second, fine-grained sedimentary rocks are divided into 18 types in four categories, carbonate rock, fine-grained felsic sedimentary rock, clay rock and mixed fine-grained sedimentary rock according to mineral composition (carbonate minerals, felsic detrital minerals and clay minerals as three end elements). Considering the importance of organic matter in unconventional oil and gas generation and evaluation, organic matter is taken as the fourth element in the scheme. Taking the organic matter contents of 0.5% and 2% as dividing points, fine grained sedimentary rocks are divided into three categories, organic-poor, organic-bearing, and organic-rich ones. The new scheme meets the requirement of unconventional oil and gas exploration and development today and solves the problem of conceptual confusion in fine-grained sedimentary rocks, providing a unified basic term system for the research of fine-grained sedimentology. © 2022, The Editorial Board of Petroleum Exploration and Development. All right reserved.
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页码：106 / 115
页数：9
相关论文
共 51 条
  • [31] XU Meng, Study on shale gas of Lower Permian Longtan Formation in Xiangdongnan Depression, (2013)
  • [32] ZHANG Penghui, CHEN Zhiyong, XUE Lu, Et al., The differential diagenetic evolution and its influencing factors of Lower Cambrian black rock series in the northwestern margin of Tarim Basin, Acta Petrologica Sinica, 36, 11, pp. 3463-3476, (2020)
  • [33] ZHU Yixiu, JIN Zhenkui, JIN Ke, Et al., Petrologic features and diagenetic evolution of fine-grained sedimentary rocks in continental lacustrine basins: A case study on the Lower Jurassic Da'anzhai Member of Yuanba area, Sichuan Basin, Oil & Gas Geology, 42, 2, pp. 494-508, (2021)
  • [34] PENG Jun, XU Tianyu, YU Ledan, Characteristics and controlling factors of lacustrine fine-grained sediments of the four in the member of Shahejie Formation in Dongying Depression, Lithologic Reservoirs, 32, 5, pp. 1-12, (2020)
  • [35] FANG Zheng, PU Xiugang, CHEN Shiyue, Et al., Investigation of enrichment characteristics of organic matter in shale of the 2nd member of Kongdian Formation in Cangdong Sag, Journal of China University of Mining & Technology, 50, 2, pp. 304-317, (2021)
  • [36] LI Shichao, YANG Jianguo, LIU Bo, Et al., Petrology and lithofacies of shale from the first member of Qingshankou Formation in Sanzhao Sag, Songliao Basin: A Case Study of SYY-3 Well, Geology and Resources, 30, 3, pp. 317-324, (2021)
  • [37] MURRA R W, BRINK M R B, BRUMSACK H J, Et al., Rare earth elements in Japan Sea sediments and diagenetic behavior of Ce/Ce<sup>*</sup>: Results from ODP Leg 127, Geochimica et Cosmochimica Acta, 55, 9, pp. 2453-2466, (1991)
  • [38] MONTGOMERY S L, TABET D E, BARKER C E., Upper Cretaceous Ferron Sandstone: Major coalbed methane play in central Utah, AAPG Bulletin, 85, 2, pp. 199-219, (2001)
  • [39] DUPRAZ C, VISSCHER P T., Microbial lithification in marine stromatolites and hypersaline mats, Trends in Microbiology, 13, 9, pp. 429-438, (2005)
  • [40] DITTRICH M, OBST M., Are Picoplankton Responsible for Calcite Precipitation in Lakes, AMBIO: A Journal of the Human Environment, 33, 8, pp. 559-564, (2004)
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