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.

引用

页码：106 / 115

页数：9

共 51 条

[1] JANG Zaixing, LIANG Chao, WU Jing, Et al., Several issues in sedimentological studies on hydrocarbon-bearing fine-grained sedimentary rocks, Acta Petrolei Sinica, 34, 6, pp. 1031-1039, (2013)
[2] LIU Huimin, SUN Shanyong, CAO Yingchang, Et al., Lithofacies characteristics and distribution model of fine-grained sedimentary rock in the lower Es3 member, Dongying Sag, Petroleum Geology and Recovery Efficiency, 24, 1, pp. 1-10, (2017)
[3] APLIN A C, MACQUAKER J H S., Mudstone diversity: Origin and implications for source, seal, and reservoir properties in petroleum systems, AAPG Bulletin, 95, 12, pp. 2031-2059, (2011)
[4] LI Yi, LIU Keyu, PU Xiugang, Et al., Lithologic characteristics and Formation environments of mixed fine-grained sedimentary rocks in second member of Kongdian Formation in Cangdong Depression, Bohai Bay Basin, Earth Science, 45, 10, pp. 3779-3796, (2020)
[5] LIU Shujun, CAO Yingchang, LIANG Chao, Lithologic characteristics and sedimentary environment of fine-grained sedimentary rocks of the Dongying Sag, Bohai Bay Basin, Journal of Palaeogeography, 21, 3, pp. 479-489, (2019)
[6] ZHANG Shun, LIU Huimin, SONG Guoqi, Et al., Genesis and control factors of shale oil reserving space in Dongying Sag, Acta Petrolei Sinica, 37, 12, pp. 1495-1507, (2016)
[7] YAN Jihua, PU Xiugang, ZHOU Lihong, Et al., Naming method of fine-grained sedimentary rocks on X-ray diffraction data, China Petroleum Exploration, 20, 1, pp. 48-54, (2015)
[8] HAO Yunqing, XIE Zhonghuai, ZHOU Zili, Et al., Discussion on multi-factors identification of mudstone and shale, Petroleum Geology and Recovery Efficiency, 19, 6, pp. 16-19, (2012)
[9] SUN Shanyong, The Lithofacies and Its development characteristics of fine-grained sedimentary rocks in Es3x-Es4s Sub member of Dongying Sag, (2017)
[10] LIN Chunming, ZHANG Xia, ZHAO Xuepei, Et al., Review of laboratory research methods for sedimentary petrology, Journal of Palaeogeography, 23, 2, pp. 223-244, (2021)

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