气候变化领域集成服务门户(CCPortal): High-resolution hyperspectral-based continuous mineralogical and total organic carbon analysis of the eagle ford group and associated formations in south Texas

CCPortal

DOI	10.1306/02262018156
	High-resolution hyperspectral-based continuous mineralogical and total organic carbon analysis of the eagle ford group and associated formations in south Texas
	Alnahwi A.; Kosanke T.; Loucks R.G.; Greene J.; Liu X.; Linton P.
发表日期	2020
ISSN	0149-1423
起始页码	1439
结束页码	1462
卷号	104 期号:7
英文摘要	Hyperspectral sensing is used to generate mineral maps of a fine-grained, vertical Eagle Ford Group cored section and underlying Buda Limestone and Del Rio Formation in south Texas. This technology produces a map that shows the distribution of minerals on the core surface. Three different cameras within the hyperspectral core-imaging system were used to image a 99.1-m (325-ft) core: a (1) line scan camera, which produces a high-resolution red-green-blue (120-mm) natural-color photograph of the dry core from the visible light spectrum; (2) short-wave infrared (SWIR) spectrometer (300-500-mm resolution); and (3) long-wave infrared (LWIR) spectrometer (300-500-mm resolution). In 2016, the introduction of a new high-resolution LWIR spectrometer made it possible to identify minerals in cores that were not detected by previous SWIR systems. High-resolution hyperspectral imaging technology using both the SWIR and LWIR spectra provides a significant step toward quantifying mineralogy and total organic carbon. Hyperspectral imaging is a powerful tool for studying textural and fabric relationships because it detects and highlights the major mineralogical changes that occur between depositional beds and among depositional features. Calcite compositional variations and cyclicity appear to be closely related. The Sr-rich calcite appears to indicate a smaller allochem size dominance as well as the slower sedimentation rates that are required for nannofossils to settle from suspension. Finally, the observed diagnostic cyclicity of the lower Eagle Ford can be related to coccolithophore productivity. © 2020. The American Association of Petroleum Geologists. All rights reserved.
语种	英语
scopus关键词	Calcite; Cameras; Deposition; Image resolution; Infrared radiation; Lime; Organic carbon; Spectrometers; Spectroscopy; Compositional variation; Fabric relationship; Hyperspectral imaging technologies; Hyperspectral sensing; Mineralogical changes; Sedimentation rates; Short wave infrared; Total Organic Carbon; Hyperspectral imaging; calcite; image analysis; mineralogy; nanofossil; photograph; remote sensing; satellite data; sedimentation; shortwave radiation; strontium; total organic carbon; Del Rio; Texas; United States
来源期刊	AAPG Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/143687
作者单位	Emerging Unconventional Assets Department, Saudi Aramco, Dhahran, Saudi Arabia; Australian Laboratory Services (ALS), Oil and Gas Laboratories, Houston, TX, United States; Bureau of Economic Geology, John A. and Katherine G. Jackson School of Geosciences, University of Texas at Austin, Austin, TX, United States; ALS Oil and Gas Laboratories, Houston, TX, United States; TerraCore, Reno, Nevada, United States
推荐引用方式 GB/T 7714	Alnahwi A.,Kosanke T.,Loucks R.G.,et al. High-resolution hyperspectral-based continuous mineralogical and total organic carbon analysis of the eagle ford group and associated formations in south Texas[J],2020,104(7).
APA	Alnahwi A.,Kosanke T.,Loucks R.G.,Greene J.,Liu X.,&Linton P..(2020).High-resolution hyperspectral-based continuous mineralogical and total organic carbon analysis of the eagle ford group and associated formations in south Texas.AAPG Bulletin,104(7).
MLA	Alnahwi A.,et al."High-resolution hyperspectral-based continuous mineralogical and total organic carbon analysis of the eagle ford group and associated formations in south Texas".AAPG Bulletin 104.7(2020).