气候变化领域集成服务门户(CCPortal): Confocal laser scanning microscopy and automated petrographic image analysis in different rock types: Two-dimensional images capillary pressure curves estimation and three-dimensional porosity reconstruction

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DOI	10.1306/01171916527
	Confocal laser scanning microscopy and automated petrographic image analysis in different rock types: Two-dimensional images capillary pressure curves estimation and three-dimensional porosity reconstruction
	Caja M.A.; Pérez-Jiménez J.L.; León M.F.; Acero-Allard D.
发表日期	2019
ISSN	0149-1423
卷号	103 期号:8
英文摘要	In the past, determination of rock properties using image analysis relied upon petrographic transmitted-light images, but with limited success because of a lack of resolution and restricted computer processing power. A new technique that employs confocal laser scanning microscopy (CLSM) can be considered complementary to laboratory measurements and applicable to several samples, saving time and money and requiring only a limited amount of rock sample for analysis. We have studied several types of rocks with CLSM and fluorescent dye-impregnated thin sections. The two-dimensional scans of each thin section images is an area of 12 mm2, with a pixel size of 0.198 mm and were used to simulate capillary pressure curves for pore bodies and pore throats. The CLSM technique also enables three-dimensional (3-D) visualization of the rock porosity. The studied rock samples were taken from diverse oil and gas field reservoirs: case A, a conventional sandstone (15.1% porosity, 29.8 md permeability); case B, a tight sandstone (3.7%, 0.02 md); case C, an oolitic carbonate (9.6%, 0.1 md); case D, a rhodolithic algal carbonate (19.8%, 43.7 md); case E, dolomitized carbonate (17%, 21.7 md); and case F, a naturally fractured carbonate (2.4%, 0.6 md). Our results confirm that the CLSM technique can be applied to rocks of contrasting porosity and permeability to obtain computed synthetic capillary pressure curves faster than with conventional measurement methods. The technique quantifies different pore-body and pore-throat sizes and distributions, with the added ability to visualize 3-Dporosity and to extract fromthin section analysis petrologic properties. Copyright © 2019. The American Association of Petroleum Geologists. All rights reserved.
语种	英语
scopus关键词	Capillarity; Capillary tubes; Carbonation; Confocal microscopy; Gas industry; Image reconstruction; Petroleum reservoir engineering; Porosity; Sandstone; Three dimensional computer graphics; Capillary pressure curves; Computer processing power; Confocal laser scanning microscopy; Conventional measurements; Fractured carbonates; Laboratory measurements; Threedimensional (3-d); Two dimensional images; Image analysis; capillary pressure; carbonate rock; detection method; estimation method; gas field; image analysis; microscopy; porosity; reconstruction; reservoir rock; thin section; two-dimensional modeling; algae
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/125060
作者单位	Geology, Geomechanics and Petrophysics, Repsol Technology Lab, Madrid, Spain; Reservoir Characterization Laboratory, Repsol Technology Lab, Madrid, Spain; Schlumberger Reservoir Laboratories, Schlumberger Technology Corporation, Houston, TX, United States
推荐引用方式 GB/T 7714	Caja M.A.,Pérez-Jiménez J.L.,León M.F.,et al. Confocal laser scanning microscopy and automated petrographic image analysis in different rock types: Two-dimensional images capillary pressure curves estimation and three-dimensional porosity reconstruction[J],2019,103(8).
APA	Caja M.A.,Pérez-Jiménez J.L.,León M.F.,&Acero-Allard D..(2019).Confocal laser scanning microscopy and automated petrographic image analysis in different rock types: Two-dimensional images capillary pressure curves estimation and three-dimensional porosity reconstruction.AAPG Bulletin,103(8).
MLA	Caja M.A.,et al."Confocal laser scanning microscopy and automated petrographic image analysis in different rock types: Two-dimensional images capillary pressure curves estimation and three-dimensional porosity reconstruction".AAPG Bulletin 103.8(2019).