|Table of Contents|

Study on Clastic Rock Framework Mineral Structure Based on Nanoscale(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2011年第04期
Page:
331-336
Research Field:
基础地质与矿产地质
Publishing date:

Info

Title:
Study on Clastic Rock Framework Mineral Structure Based on Nanoscale
Author(s):
YANG Shao-chun1; WANG Hui-juan1; 2
1.School of Geosciences, China University of Petroleum, Qingdao 266555, Shandong, China; 2. Institute of Geological Sciences, Shengli Petroleum Administration, China Petroleum and Chemical Group, Dongying 257000, Shandong, China
Keywords:
clastic rock;  framework mineral;  quartz;  feldspar;  nanoscale;  structure characteristic;  scanning electron microscopy;  transmission electron microscopy
PACS:
P575.2;P585.2
DOI:
-
Abstract:
The core samples of clastic reservoir and thin crystalloids in Shengtuo Area of Shengli Oilfield were observed and measured by scanning electron microscopy(SEM)and transmission electron microscopy(TEM). The results showed that there were the nanoscale structure characteristic in framework mineral quartz and feldspar of clastic rock; characteristics of the main nanoscale structures developed in quartz were pits similar as erosion, young single crystal, parallel ridge, crystal dislocation and grain kernal inclusion; characteristics of the nanoscale structures in feldspar were parallel dent on the crystal plane, dissolution needle, nanoscale thin layer of broken band, kaolinization of feldspar, crystal dislocation and micro-inclusion; most of them were in several hundred nanometers, and some were even just tens of nanometers; characteristics of the nanoscale structure of mineral were related to the hardness, crystal lattice defects, crystal growth, microscopic manifestation of diagenesis and transformation of microscopic tectonic stress. The further study on the nanoscale clastic rock framework mineral structure could help to find the mechanism and modality of microscopic deformation stress and the diagenesis pattern such as dissolution, and thereby could provide new view for the petroleum exploration.

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Last Update: 2011-12-20