Vibration Induced Fatigue; Threats and Mitigation

Helge Lawrenz

Indonesian Petroleum Association

... the forth and second pulsation harmonic. Figure 4 shows the chart of pressure pulsation spectrum over the frequency at the centre of the spool pipe...

Broadband Data from Flat Streamers: Considerations for Acquisition and Processing

Phil Fontona, Edward Hager

Indonesian Petroleum Association

... extending the low-frequency end of the spectrum without limiting the high-frequencies beyond the natural Earth response. These techniques focus...

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

Ted Urbancic and Andreas Wuestefeld

Search and Discovery.com

... outline frequency and bandwidth limitations, consider different noise and resonance effects on signals, the effects of coupling behaviour, and introduce...

Application of Mechanical Stratigraphy to the Development of a Fracture-Enhanced Reservoir Model, Polvo Field, Campos Basin, Brazil, by Michael Gross, T.C. Lukas, and Peter Schwans, #20080 (2009).

Search and Discovery.com

Fracture Detection Interpretation Beyond Conventional Seismic Approaches, #41035 (2012)

Gary Jones, Rocky Roden

Search and Discovery.com

... within the seismic volume is 1.8 to 2.65 seconds, indicated by the blue arrows in Figure 1. The computed frequency spectrum for that zone is shown...

Diagnostic Applications of Borehole Hydraulic Signal Processing

Connor J. Clark, Jennifer L. Miskimins, Dana L. Gallegos

Unconventional Resources Technology Conference (URTEC)

... of the wellbore are then identified as strong peaks in the frequency spectrum. By understanding the boundary conditions downhole, the resonant frequencies can...

Self-Organizing Models of Shallow-Water Carbonate Accumulation

Carl N. Drummond, Pamela J. Dugan

Journal of Sedimentary Research (SEPM)

... of individual elements that constitute even relatively short stratigraphic sections, and the possibilities of both high- and low-frequency organization...

Increasing The Resolution of Seismic Imaging With Spectral Blueing, Spectral Decomposition RGB And HSV Blending to Delineate The Fluvial Facies on Fluvio Deltaic Environment

Aji Darma Maulana, Nine Safira, Ongki Ari Prayoga, Egie Wijaksono, Alit Ascaria

Indonesian Petroleum Association

... spectrum in the dominant frequency area owned by the spectrum of the wavelet operator. A bandpass filter reduces data outside the band signal to perform...

Interpretation of the Results of Mechanical Analyses

D. J. Doeglas

Journal of Sedimentary Research (SEPM)

... on arithmetic probability paper. Well-sorted sands give on this paper straight lines proving that they have a symmetrical size frequency distribution when...

Application of Seismic Data to Lithology and Hydrocarbon Identification in East China

Qian Shao-Xin, Liu Wen-Lin

Circum Pacific Council Publications

... is limited by its frequency resolution, which is equal to the reciprocal of data length At. For short data length, it is preferable to do spectrum...

Observations of geophone spurious resonance

Steve Hearn, Shaun Strong, Andrew Kinmont

Petroleum Exploration Society of Australia (PESA)

... [email protected] SUMMARY A detailed understanding of the frequency response of geophones is critical for the design and quality control of broadband...

Enhance Seismic Quality With A Fast, Robust and Economic Solution Using Broadband Technology

Munji Syarif, Vania Iqsora, Adde Avrino, Agus Abdullah

Indonesian Petroleum Association

... is amplitude spectrum of 2004 data. Whereas 1999 dataset, although have higher dominant frequency content of 30Hz, the noise level is also high with possible...

Chapter 119: Synthetic Seismic Modeling of Turbidite Outcrops

Mark Chapin, Gottfried Tiller

AAPG Special Volumes

..., velocities, seismic wavelets, and frequency contents illustrates the scale of heterogeneity resolvable by common marine seismic data. With sufficient...

Efficacious Use of Simple and Cost Effective Acoustic Flow Analyzer Measurement to Enhance Recovery and Improve Life Cycle of Wells

Omar Alaref, Mahmoud Saada, Mongi Abdelmoula, Marvin Rourke

Africa Energy and Technology Conference, 2016

.... The frequency of the signal would depend on the size of aperture that the fluid is going through, while amplitude depends on various aspects; main ones are 1...

Some Qualitative Analyses of the Ground Magnetic Survey in the Kedah Peak Rest House Area, Kedah

B. K. Lim

Geological Society of Malaysia (GSM)

...-features are evident. By shifting the band pass filter towards the lower frequency part of the spectrum, parts of the northern sections as well...

Overburden Compensation: A Pragmatic Solution to the Frequency Dependent Amplitude Losses Associated With Laterally Variable Overburden

Swee Leng NG, Martin Bayly

Indonesian Petroleum Association

...Overburden Compensation: A Pragmatic Solution to the Frequency Dependent Amplitude Losses Associated With Laterally Variable Overburden Swee Leng NG...

High Frequency Full Waveform Inversion as an Interpretation Solution

Laurence Letki, Matt Lamont, Troy Thompson

Australian Petroleum Production & Exploration Association (APPEA) Journal

...High Frequency Full Waveform Inversion as an Interpretation Solution Laurence Letki, Matt Lamont, Troy Thompson The APPEA Journal 2019, 59, 904–908...

A method of relative impedance holography-inversion based on reflection coefficient inversion

Jiangfeng Zheng, Jialin Sun, Zongyu Zhen, Shaoxuan Li

International Meeting for Applied Geoscience and Energy (IMAGE)

...) 𝑤 Where r(t, f) is the time-frequency spectrum of r(t), 𝑡 𝑤 is half-length of the time window. Assuming a convolutional seismogram and known wavelet...

Extending seismic bandwidth using the harmonic energy of a marine vibrator source

Tiexing Wang, Arash JafarGandomi, Hakon Aune

International Meeting for Applied Geoscience and Energy (IMAGE)

... consists of both fundamental frequency energy and harmonics. Figure 4c shows the frequency spectrum of the two images. Figure 3: Display of the residual...

High-Resolution Anisotropic Earth Model Building on Conventional Seismic Data Using Full-Waveform Inversion: an Offshore Australia Case Study

Bee Jik Lim, Denes Vigh, Stephen Alwon, Saeeda Hydal, Martin Bayly, Chris Manuel, Dimitri Chagalov, Gary Hampson, Dimitri Bevc

Indonesian Petroleum Association

... be implemented in the frequency domain (Pratt et al. 1998; Pratt 1999; Ben-Hadjali et al. 2008). In the frequency domain implementation, only specific single...

Downstream Changes In Alluvial Architecture: An Exploration of Controls on Channel-stacking Patterns

Paul L. Heller , Chris Paola :

Journal of Sedimentary Research (SEPM)

... for subsidence rate) as a control on stacking patterns. The models decouple avulsion frequency from sedimentation rates, resulting in an inverse...

Abstract: Lamb Waves Recorded in Microseismic Monitoring Wellbores; #90174 (2014)

Andy St-Onge

Search and Discovery.com

... events were identified by their occurrence rate, apparent velocity and frequency content. Lamb waves have been identified on both datasets. They have...

High Resolution P-P Imaging of Deepwater Near-Seafloor Geology, by Bob A. Hardage and Paul E. Murray, #40200 (2006).

Search and Discovery.com

Amplitude and Bandwidth Recovery Beneath Gas Zones Using Kirchhoff Prestack Depth Q-Migration

Jonathan Liu, Peter Traynin, J. M. Reilly

Indonesian Petroleum Association

..., frequency loss, and phase distortion below low Q anomalies. Several post-stack viscoaoustic wave-equation based methods have been proposed...

Multi-Channel Telemeter for Combined Geophysical Investigation of Wells

Ya. Ye. Belen’kiy, V. N. Mikhaylovskiy, A. N. Svenson

Petroleum Geology: A Digest of Russian Literature

... the measuring circuit at a frequency of 20 hertz (CPS). Such a frequency of repetition of measurement permits logging to be carried out with a speed up to 3 km...