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The AAPG/Datapages Combined Publications Database

Showing 31,943 Results. Searched 190,987 documents.

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Seismic Modeling and Expression of Common Fold-Thrust Belt Structures; #42266 (2018)

Jianjun Li, Shankar Mitra

Search and

.../S ratio, the frontlimbs can be imaged better because of shallower dips. However, increasing fault slip has an opposite effect. Fault reflections...


Microseismic Event Location Using Multiple Arrivals: Demonstration of Uncertainty Reduction

Zhishuai Zhang, James W. Rector, Michael J. Nava

Unconventional Resources Technology Conference (URTEC)

..., and low signal to noise ratio. The developed method can effectively improve the accuracy of microseismic event location and proposes a better acquisition...


Delivering a Step-Change in Imaging from Indonesias First Ocean Bottom Node 3D Seismic Survey at Tangguh

Christopher Birt, Hery Prastowo, Danang Priyambodo, Simon Wolfarth, Johnathan Stone

Indonesian Petroleum Association

... through the thick scattering and attenuating karstified overburden. More traces stacked together means a higher Signal-to-Noise ratio (S/N...


Effective Use of High Density VSP Measurements to Predict Pore Pressure and Estimate Mud Weight Ahead of Drilling in the Mahakam Delta, Indonesia

Mohammed Badri, Stephane Gazet, Gregoire de Tonnac

Indonesian Petroleum Association

... of incidence would represent true seismic reflectivity. Signal to noise ratio is enhanced with high-density recording and is critical in picking transit...


First Results of Inaugural Deployments of the Australian National Ocean Bottom Seismograph Fleet

Alexey Goncharov, Ashby Cooper, Peter Chia, Michal Malinowski

Petroleum Exploration Society of Australia (PESA)

...-noise ratio of an airgun generated signal at large offsets is very high, allowing recovery of information from very deep crustal features, in particular...


Aspects to the Resolving Power of 3D Seismic Surveys

Wolfgang Houba

Geological Society of Malaysia (GSM)

... data. The degree of coverage is of course closely related to the signal to noise (S/N) ratio of the stacked data the improvement of which is one...


Seismic Frequency Bandwidth Constraints in Deepwater Locations

Andrew Long, Iain Buchan

Indonesian Petroleum Association

..., with optimal signal-to-noise ratio, can be both acquired and imaged. Source Modelling Methodology and Results Detailed source modelling is completed...


Risks of Microseismic Fracture Mapping Mis-interpretation: Source-Dependent Sensitivity Induced by Surface Arrays Observational Bias

Pierre-Francois Roux

Unconventional Resources Technology Conference (URTEC)

...ake of simplicity, we have only considered detected those events for which the signal-to-noise ratio is larger than 1. The (normalized) detection probabil...


Drilling Using AvO to Reduce Uncertainties in D35 Infill

Meh Jabeen Zainuddin

Geological Society of Malaysia (GSM)

... to noise ratio . RESERVOIR CIIB2 The Cycle II B2 reservoir is made up of thick and laterally extensive stacked channel sands. Well data has...


Compensating for Seismic Absorption for Orthogonal Shooting Field Data: A Case Study on NW Tunu Area, Indonesia

Doddy Iqbal Biramandita, Vishal Kumar, Wayne Zanussi, Jacques Bonnafe, Natalia Anggriani, Cepi M. Adam, Didiek Bhudy Prabowo

Indonesian Petroleum Association

... to 112.5; azimuth 4: 112.5 to 157.5). 5D interpolation increases the Signal/Noise ratio, cleaning the image and four azimuthal sectors helps us...


Exploring Geophysical Exploration

Carl H. Savit

Houston Geological Society Bulletin

... significance. Improving the signal-to-noise ratio will provide better structural sections and will allow the production of acoustic transform sections...


AVO Attribute Analysis for Gas Hydrate in Shenhu Area; #41228 (2013)

Rui Yang, Nengyou Wu, Zhibin Sha, and Jinqiang Liang

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.... For improving the Signal to Noise Ratio (SNR) of seismic data, amplitude preservation Kirchhoff pre-stack migration has been applied to the 3-D seismic...


Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)

Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson

Search and

...-to-noise ratio, use of global gridded 3D tomography can give greater efficiency and very reliable results. Defining variable anisotropic parameters via...



Tony Johns, Carmen Vito and Raul Sarmiento

Geological Society of Trinidad & Tobago

... the limited crossline aperture of the single swath, a 3D approach to the processing yielded improved signal-to-noise and better continuity of events...


Geologic Considerations for Stratigraphic Modeling and Interpretation: Section 3. Stratigraphic Models from Seismic Data

L. D. Meckel Jr. , A. K. Nath

AAPG Special Volumes

... envisioned. The practical boundaries of this potential resolution are yet to be evaluated, and depend on signal-to-noise ratio, frequency content...


Acquisition and Ananlysis of Wide-Angle Reflection and Refraction Seismic Data

Paul L. Stoffa

Circum Pacific Council Publications

... by addition (summation or stacking) to produce a seismogram with an improved signal to random and coherent noise ratio (Figure 3). Seismic exploration has been...


3-D AVO Analysis and Modeling Applied to Fracture Detection in Coalbed Methane Reservoirs

Antonio C.B. Ramos, T.L. Davis

Rocky Mountain Association of Geologists

... to be more significant for S-waves than for P-waves. However, the signal-to-noise ratio constraints on pre-stack data are also larger in S-wave data when...


Fracture characterization and modeling from virtual outcrops

G. Casini, D. W. Hunt, E. Monsen, and A. Bounaim

AAPG Bulletin

... interpretation of fractures from virtual outcrops. We present a benchmarking exercise between a previously proposed automated fracture picking method...


Abstract: Robust Surface-Consistent residual Statics and Phase Correction…Part 1; #90224 (2015)

Nirupama Nagarajappa and Peter Cary

Search and

..., source types with different phase responses, etc. To see the effect of noise on phase, consider data in the frequency domain. At a given frequency f...


Parsimonious Deconvolution

Jon F. Claerbout

Southeast Asia Petroleum Exploration Society (SEAPEX)

... in a while. On a root mean square basis, the signal-to-noise ratio is about thirty. Figure 1 shows the results of the parsimonious deconvolution...


The Application of Semi-supervised Geobody Detection Technique using Multiple Seismic Attributes in Petroleum Exploration; #41165 (2013)

Lei Li, Xianhua Ran, Chunfeng Tao, Zhonghong Wan, and Shifan Zhan

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.... For example, Davis (1986) developed an unsupervised K-means clustering to segment the seismic trace shapes where the Signal Noise Ratio(SNR...


Abstract: Black Box Recording of Passive Seismicity: Pitfalls of not Understanding your Acquisition Instrumentation and its Limitations; #90187 (2014)

Ted Urbancic and Andreas Wuestefeld

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... signal-to-noise ratios. As a result, only when these recording effects are taken into account can the analysis of recorded signals be considered...


Australian Exploration Geophysics--Current Performance and Future Prospects

K. G. McCracken , G. Buselli

AAPG Special Volumes

... effect on the S/N ratio for the other classes of noise. Because spatial noise varies with position, it can be reduced relative to the target signal...


Abstract: Surface-consistent Matching Filter for Time-lapse Processing; #90174 (2014)

Mahdi H. Almutlaq and Gary F. Margrave

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... surface-consistent design equations are similar to those for surface-consistent deconvolution except that the data term is the spectral ratio of two surveys...


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