A Quantitative Analysis of Seismic Reflection in a Gas-Bearing Carbonate Buildup, Offshore Malaysia

1996 ◽  
pp. 331-337
Keyword(s):  
Quantitative Analysis ◽  
Seismic Reflection ◽  
Gas Bearing ◽  
Carbonate Buildup

scholarly journals Prediction of reservoir sand in Miocene deltaic deposits in Denmark based on high-resolution seismic data

2007 ◽  
Vol 13 ◽  
pp. 17-20 ◽  
Author(s):  
Erik S. Rasmussen ◽  
Thomas Vangkilde-Pedersen ◽  
Peter Scharling
Keyword(s):  
High Resolution ◽  
Seismic Data ◽  
Seismic Reflection ◽  
Oil And Gas ◽  
Lower Miocene ◽  
Sequence Stratigraphic ◽  
Deep Aquifers ◽  
Gas Bearing

Intense investigations of deep aquifers in Jylland, western Denmark, during the last seven years have resulted in de tailed mapping of Miocene sand-rich deposits laid down in fluvial channels, delta lobes, shoreface and spit complexes (Fig. 1; Rasmussen 2004). Detailed sedimentological and paly nol ogical studies of outcrops and cores, and interpretation of high-resolution seismic data, have resulted in a well-founded sequence-stratigraphic and lithostratigraphic scheme (Fig. 1) suitable for prediction of the distribution of sand. The Miocene succession onshore Denmark is divided into three sand-rich deltaic units: the Ribe and Bastrup sands and the Odderup Formation (Fig. 2). Prodeltaic clayey deposits of the Vejle Fjord and Arnum Formations interfinger with the sand-rich deposits. Most of the middle and upper Mio- cene in Denmark is composed of clayey sediments referred to the Hodde and Gram Formations (Fig. 2). This paper presents examples of seismic reflection patterns that have proved to correlate with sand-rich deposits from lower Miocene deltaic deposits and that could be applied in future exploration for aquifers and as analogues for oil- and gas-bearing sands in wave-dominated deltas.

scholarly journals Geological structure and kinematics of normal faults in the Otway Basin, Australia, based on quantitative analysis of 3-D seismic reflection data

2015 ◽  
Vol 29 (2) ◽  
pp. 129-148 ◽  
Author(s):  
Jennifer Ziesch ◽  
Chiara M. Aruffo ◽  
David C. Tanner ◽  
Thies Beilecke ◽  
Tess Dance ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Seismic Reflection ◽  
Geological Structure ◽  
Normal Faults ◽  
Seismic Reflection Data ◽  
Reflection Data

Seismic sedimentology study of braided river — A case study in He8 and Shan1 members of Permian, Sulige western region, Ordos Basin

2018 ◽  
Vol 6 (3) ◽  
pp. T625-T633
Author(s):  
Zhong Hong ◽  
Huaqing Liu ◽  
Ming Sun ◽  
Gai Gao ◽  
Guangmin Hu
Keyword(s):  
Seismic Data ◽  
Seismic Reflection ◽  
Ordos Basin ◽  
Wave Impedance ◽  
P Wave ◽  
Seismic Survey ◽  
Western Region ◽  
Braided River ◽  
Seismic Sedimentology ◽  
Gas Bearing

The He8 and Shan1 members deposited by braided river are major pay zones of the Sulige western region, Ordos Basin. In these two members, the P-wave impedance ranges of gas-bearing reservoir and the surrounding lithologies are highly overlapped. The gas-bearing reservoir cannot be feasibly recognized by the conventional poststack seismic data. In addition, the seismic reflection of the Shan1 member showing mid-weak amplitude distributes discontinuously within the whole seismic survey, leading to difficulties in tracking seismic events and delineating the plane map of reservoir distribution. To solve the problems above, a seismic sedimentology study was conducted in the study area. First, the seismic reflection characterization of braided river was studied according to its sedimentary model. Also, the amplitude variation with offset (AVO) seismic data were used to identify gas-bearing reservoir because the Poisson’s ratios of gas-bearing reservoir and the surrounding rocks are distinctly different. The AVO attribute volume is therefore converted into the lithologic volume, which is useful for the subsequent lithologic interpretation work. The isochronous surface of the Shan1 member seismic reflection can be achieved with the aid of a stratal slicing technique. The practice indicates the feasibility of lithologic converting of the AVO attribute volume. The gas-bearing reservoir of the He8 and Shan1 members can be precisely predicted, and the evolutional history and plane-distribution character of the gas-bearing reservoir are clearly delineated by the stratal slices with isochronous significance.

An Improved Quantitative Image Analyser

1977 ◽  
Vol 35 ◽  
pp. 226-227
Author(s):  
J.P. Fallon ◽  
P.J. Gregory ◽  
C.J. Taylor
Keyword(s):  
Feature Extraction ◽  
Quantitative Analysis ◽  
Frequency Content ◽  
General Sense ◽  
Physical Measurements ◽  
Quantitative Image ◽  
Image Analyser ◽  
Automatic Methods ◽  
Quantitative Results

Quantitative image analysis systems have been used for several years in research and quality control applications in various fields including metallurgy and medicine. The technique has been applied as an extension of subjective microscopy to problems requiring quantitative results and which are amenable to automatic methods of interpretation.Feature extraction. In the most general sense, a feature can be defined as a portion of the image which differs in some consistent way from the background. A feature may be characterized by the density difference between itself and the background, by an edge gradient, or by the spatial frequency content (texture) within its boundaries. The task of feature extraction includes recognition of features and encoding of the associated information for quantitative analysis.Quantitative Analysis. Quantitative analysis is the determination of one or more physical measurements of each feature. These measurements may be straightforward ones such as area, length, or perimeter, or more complex stereological measurements such as convex perimeter or Feret's diameter.

Quantification of Silica Uptake by Alveolar Macrophages - An Emperical Scanning Electron Microprobe Method

1982 ◽  
Vol 40 ◽  
pp. 332-333
Author(s):  
V. V. Damiano ◽  
R. P. Daniele ◽  
H. T. Tucker ◽  
J. H. Dauber
Keyword(s):  
Quantitative Analysis ◽  
Alveolar Macrophages ◽  
Bulk Sample ◽  
Silica Particles ◽  
Empirical Method ◽  
Phagocytic Cells ◽  
Calibration Standards ◽  
X Ray ◽  
Accurate Quantitative Analysis ◽  
Scanning Electron

An important example of intracellular particles is encountered in silicosis where alveolar macrophages ingest inspired silica particles. The quantitation of the silica uptake by these cells may be a potentially useful method for monitoring silica exposure. Accurate quantitative analysis of ingested silica by phagocytic cells is difficult because the particles are frequently small, irregularly shaped and cannot be visualized within the cells. Semiquantitative methods which make use of particles of known size, shape and composition as calibration standards may be the most direct and simplest approach to undertake. The present paper describes an empirical method in which glass microspheres were used as a model to show how the ratio of the silicon Kα peak X-ray intensity from the microspheres to that of a bulk sample of the same composition correlated to the mass of the microsphere contained within the cell. Irregular shaped silica particles were also analyzed and a calibration curve was generated from these data.

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