نتایج جستجو برای: some tf seismic attributes are extracted the attributes include instantaneous amplitude

تعداد نتایج: 16303530  

Journal: :فیزیک زمین و فضا 0
هادی حاجی جمهوری کارشناس ارشد مهندسی اکتشاف نفت، دانشکده مهندسی معدن، پردیس دانشکده های فنی، دانشگاه تهران محمدعلی ریاحی دانشیار، گروه فیزیک زمین، مؤسسة ژئوفیزیک دانشگاه تهران، ایران غلامحسین نوروزی دانشیار، دانشکده مهندسی معدن، پردیس دانشکده های فنی، دانشگاه تهران امیر شمسا کارشناس ارشد مهندسی اکتشاف نفت، شرکت نفت فلات قاره ایران

avo theory was introduced around 20 years ago. in recent years, this technique was become to a major tool in hydrocarbon sources exploration. by the help of this method with the suitable understanding from underground layers and knowing how to use this technology, quantitative specifications of reservoir can be recognized. avo analysis is a seismic technique that by using of pre-stack data, est...

2017
Yaping Huang Haibin Di Reza Malekian Xuemei Qi Zhixiong Li

Hilbert–Huang transform (HHT) is a popular method to analyze nonlinear and non-stationary data. It has been widely used in geophysical prospecting. This paper analyzes the mode mixing problems of empirical mode decomposition (EMD) and introduces the noncontact measurement and detection of instantaneous seismic attributes using complementary ensemble empirical mode decomposition (CEEMD). Numeric...

2018
Yaping Huang Haijun Yang Xuemei Qi Reza Malekian Olivia Pfeiffer Zhixiong Li

The selection of seismic attributes is a key process in reservoir prediction because the prediction accuracy relies on the reliability and credibility of the seismic attributes. However, effective selection method for useful seismic attributes is still a challenge. This paper presents a novel selection method of seismic attributes for reservoir prediction based on the gray relational degree (GR...

Journal: :iranian journal of oil & gas science and technology 2013
majid bagheri mohammad ali riahi

seismic facies analysis (sfa) aims to classify similar seismic traces based on amplitude, phase,frequency, and other seismic attributes. sfa has proven useful in interpreting seismic data, allowingsignificant information on subsurface geological structures to be extracted. while facies analysis hasbeen widely investigated through unsupervised-classification-based studies, there are few casesass...

Seismic facies analysis (SFA) aims to classify similar seismic traces based on amplitude, phase, frequency, and other seismic attributes. SFA has proven useful in interpreting seismic data, allowing significant information on subsurface geological structures to be extracted. While facies analysis has been widely investigated through unsupervised-classification-based studies, there are few cases...

Journal: :فیزیک زمین و فضا 0
حامد محمدآبادی کارشناس ارشد ژئوفیزیک، لرزه شناسی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات، تهران، ایران علی عدالت دکترای ژئوفیزیک، لرزه شناسی، شرکت نفت و گاز پارس، تهران، ایران حمیدرضا سیاه کوهی دانشیار، گروه فیزیک زمین، موسسه ژئوفیزیک دانشگاه تهران، ایران

faults/fractures detection is an essential step of the full field study in hydrocarbon reservoir. definition of exact location of these structural events is a critical step to optimize location of the development wells. despite of the fast development of the geo science technology and oil industry in recent years, detection of the small geological events such as faults and fractures in some of ...

2007
Philippe Steeghs Guy Drijkoningen

The variation of frequency content with time is an important seismo-stratigraphic indicator. This paper discusses the analysis of local frequency content of seismic reeection data with quadratic joint time-frequency representations. Signal adaptive quadratic time-frequency representations have considerably better time-frequency localization properties (resolution) than more standard approaches ...

2009
Guy Chavent Paul Sacks George Papanicolaou ROBERT L. NOWACK

The refraction inverse problem was initially investigated by Herglotz (1907), Bateman (1910), and Wiechert and Geiger (1910) who applied Abel transforms for the inversion of seismic travel-times in radially varying media. For smoothly varying media in the absence of low velocity zones, this formulation provides an inverse solution which includes ray bending. In the presence of low velocity zone...

Journal: Geopersia 2019

Investigation of pore system properties of carbonate reservoirs has an important role in evaluating the reservoir quality and delineating high production intervals. The current study proposes a three-step approach for pore throat size characterization of these reservoirs, by integrating core data, well logs and 3D seismic volume. In this respect, first the pore throats size was calculated using...

The presence of gas hydrate and associated gas in the Makran Accretionary Prism, offshore Iran, has been confirmed by various seismic indicators, including the bottom-simulating reflector (BSR), amplitude blanking, and bright spot. The pre-stack analysis and the study of amplitude-variation-with-offset (AVO) attributes are the most reliable tools for semi-quantitative study of gas hydrate and f...

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