鄂尔多斯盆地东缘临兴区块上古生界致密砂岩显微图像数据集  

A photomicrograph dataset of Upper Paleozoic tight sandstone from Linxing block,eastern margin of Ordos Basin

作　　者：李盼盼[1] 李洋冰[1] 陈鑫[1] 王月胜[1] 李晨晨 刘再振 Li Panpan;Li Yangbing;Chen Xin;Wang Yuesheng;Li Chenchen;Liu Zaizhen(CNOOC EnerTech-Drilling&Production Company,Tianjin 300452,P.R.China)

机构地区：[1]中海油能源发展股份有限公司工程技术公司,天津300452

出　　处：《中国科学数据（中英文网络版）》2020年第3期158-164,共7页China Scientific Data

基　　金：中国海洋石油集团有限公司科技项目(CNOOC-KJ 135KJXM NFGJ2020-05)。

摘　　要：鄂尔多斯盆地东缘临兴区块上古生界发育大型致密砂岩气藏,自下而上发育本溪组、太原组、山西组、下石盒子组、上石盒子组和石千峰组。致密砂岩储层具有低孔、低渗和非均质强的特点,且平面上砂体展布变化较大。鉴于国内对非常规致密砂岩储层的研究处于攻关阶段,临兴区块的致密砂岩数据共享显得尤为重要。本数据集使用偏光显微镜,对本溪组、太原组、山西组、下石盒子组、上石盒子组和石千峰组6套上古生界碎屑岩地层样品,共计305块岩石薄片进行照片采集。岩石类型以长石石英砂岩为主,其次为岩屑石英砂岩和石英砂岩。本数据集包含临兴区块24口井,详细记录了样品的地层时代、岩石名称、岩石特征等信息。这些岩石显微图像数据集不仅可以为非常规油气勘探开发研究提供基础资料服务,也可广泛用于基础地质学研究中,还可应用于与计算机人工智能合作等学科交叉研究中。Large-scale tight sandstone gas reservoirs were developed from the Upper Paleozoic in the Linxing block on the eastern edge of the Ordos Basin,with Benxi,Taiyuan,Shanxi,Xiashihezi,Shangshihezi,and Shiqianfeng Formations from the bottom to the upper Paleozoic.Tight sandstone reservoirs have the characteristics of low porosity,low permeability and strong heterogeneity,and the distribution of sand bodies varies greatly on the plane.Considering domestic research on unconventional tight sandstone reservoirs has entered into a critical stage,the sharing of tight sandstone petrological data in Linxing block is particularly important.To this end,a total of 305 Upper Paleozoic rock thin sections were collected from the Benxi,Taiyuan,Shanxi,Xiashihezi,Shangshihezi,and Shiqianfeng Formations and were taken photos by polarized light microscope.The major rock type is arkose quartz sandstone,followed by lithic quartz sandstone and quartz sandstone.This dataset covers 24 wells in the Linxing block,which record in details the location,stratigraphic age,and rock characteristics of the samples.These rock microscopic image data can be widely used not only in basic geological research,but also in interdisciplinary research such as cooperative research integrating computer artificial intelligence.It also provides data support for unconventional oil and gas exploration,development and research.

关 键 词：岩石薄片 致密砂岩 临兴区块 上古生界 鄂尔多斯盆地 

分 类 号：P618.13[天文地球—矿床学] P588.212.3[天文地球—地质学]