Decade of 4D Seismic Monitoring of Carbonate Gas Reservoirs in Offshore Sarawak, Malaysia, #41021 (2012)

Shuh-Wen Yee, Paul Hague, Boon-Hong Chiem

Search and Discovery.com

... that water influx into a gas reservoir would produce a relatively minor acoustic response, which might be expected to be swamped by non-repeatable noise...

A Step Change in Seismic Imaging … Using a Unique Ghost Free Source and Receiver System; #41449 (2014)

Per Eivind Dhelie, Robert Sorley, Torben Hoy, David Lippett

Search and Discovery.com

... removal of the surface ghosts, leading to an acquisition platform that can be towed deeper for increased low frequency content and increased signal to noise...

Use of Machine Learning on SCADA Data for Assets Prognostics Health Management

Alexandre Cesa, Elliot Press

Australian Petroleum Production & Exploration Association (APPEA) Journal

... 8 A, B, C feed composition (stream 4) Random 9 D feed temperarure (stream 2) Random 10 C feed temperarure (stream 4) Random 11 Reactor...

Orientation of Orthocones in the English Lake District Based on Field Observations and Experimental Work in a Flume

P. Loubere

Journal of Sedimentary Research (SEPM)

... shaped object is placed in moving water two major forces, the water current and gravity, must act upon it, at right angles to one another. The effect...

Uncertainty in prospect evaluation: Lessons from the movie industry

Pierre Delfiner

AAPG Bulletin

.... A linear increase of sigma is observed as the mean increases, indicating a proportional effect that is very intuitive: a 10,000 difference...

Introduction to Deep Learning: Part I

Hongbo Zhou, Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

.... “We tend to overestimate the effect of a technology in the short run and underestimate the effect in the long run.” GeoExPro Vol. 14, No. 5, October...

Deltaic Depositional Processes in a Glacier-Fed Lake: A Model for the Fluvial/Lacustrine Interface

Jim Bogen

Special Publications of SEPM

... the turbulent region as a “random walk,” it is possible to investigate the effect of the fluctuating velocities when the model is subject to different...

Use of Zoned Plagioclase as an Indicator of Provenance

Edward D. Pittman

Journal of Sedimentary Research (SEPM)

... in the groundmass of volcanic rocks. ORIENTATION FACTOR Orientation of the plagioclase crystal in respect to the plane of the thin section has some effect...

Selective Neomorphism and Fabric Discontinuities in Limestones: NOTES

S. K. CHANDA

Journal of Sedimentary Research (SEPM)

... that structurally initiated neomorphism may be of two types, (footnote 1) where the effect of neomorphism is internal and self-destructive and (footnote 2...

Subsidence and Heat Flow in Intracontinental Basins and Passive Margins

Jean-Claude Mareschal

CSPG Special Publications

... (i.e., on the initial conditions). Unfortunately, the examples show that such a procedure amplifies the effect of noise and errors in the data...

Enhanced Vertical Flow Profile Determination of Fractured Basement Wells Using Temperature Log Interpretation

Ahmad Faisal

Indonesian Petroleum Association

... is limited to the deflection of the log curve, in line with the Joule – Thompson effect in the producing well; a swing to the left means a cooling...

Optimization of Infill Drilling in Naturally Fractured Tight Gas Sandstone Reservoirs in the San Juan Basin - Workshop Summary

Lawrence Teufel, Scott Cooper, John Lorenz, Bruce Hart, Robin PEarson, Hamoud Al-Hadrami, Her-Yuan Chen, Arild Sunde, Mike Kelly

PTTC

... to geometries of the original surveys, low signal-to-noise ratios, coherent noise and seismic thin beds. In analyzing the data, the seismic data were separated...

Listening with Light!

Jane Whaley

GEO ExPro Magazine

... and noise.” Hilde concludes that “a permanently installed system, leading to enhanced repeatability from survey to survey, significantly aids oil companies...

Marine Seismic Sources: Part VII: Fish are Big Talkers

Martin Landrø, Lasse Amundsen

GEO ExPro Magazine

... the effect of seismic scattering from the ice layer that was dis- 50 0 -50 0 0.5 1.0 Time (s) 66 GEO ExPro MARCH 2011 1.5 turbing reflections...

A Compensated Spectral Natural Gamma Ray* Logging System

C. Kessler, R. Washa, G. S. Yarbro

Indonesian Petroleum Association

... curve NOIS is the count rate in a window with an energy level just below the photo-electric window in the tool. Any noise in the CSNG system would...

Exploring Geophysical Exploration

Carl H. Savit

Houston Geological Society Bulletin

... spot. In effect, this process uses the information contained in the amplitude of seismic reflections in combination with other data to derive...

Anisotropic Multi-Azimuthal Velocity Model Building and Depth Imaging on Tulip 3D Coil Shooting Survey

Michele Buia, Suyang Chen, Olga Zdraveva, Swee Leng Ng, Martin Bayly, Michelle Tham

Indonesian Petroleum Association

... of these complexities is poor overall seismic response, very low amplitude or near invisible target reflections, very low signal-to-noise ratio (S/N), poor imaging...

Concentration Changes of Ca, Cu, Li, Mg, K, Na, and Sr in the Hudson River, New York: NOTES

Burton P. Fabricand, Eugene S. Imbimbo, Mary E. Brey

Journal of Sedimentary Research (SEPM)

... samples. This procedure insured approximate equality of viscosity and negated the effect of sodium on the absorptions of the other alkali metals...

A Decade of 4D Seismic Monitoring of Carbonate Gas Reservoirs in Offshore Sarawak, Malaysia (Paper A6)

Paul Hague, Chiem Boon Hong

Geological Society of Malaysia (GSM)

...-repeatable noise on 4D seismic data. For these reasons, Shell has adopted a cautious approach to implementing 4D seismic monitoring of the Miocene...

Seismic Migration: Part 7. Geophysical Methods

Ken Larner, David Hale

AAPG Special Volumes

... signal-to-noise ratio while producing a seismic time section that simulates what would have been recorded in a zero-offset seismic survey, that is, one...

Abstract: Sub-Salt and Sub-Basalt Imaging Using Long Offset and Multicomponent Seismic Data, by J. Gaiser, N. Jones, and P. Fontana; #90923 (1999)

Search and Discovery.com

Abstract: Applying the Phase Congruency Algorithm to Seismic Data Slices … A Carbonate Case Study; #90171 (2013)

Brian Russell, Dan Hampson, and John Logel

Search and Discovery.com

... for frequency spread and a noise threshold. However, equation (1) is sufficient for an understanding of the basic algorithm. More importantly, Kovesi...

Learning from 40 Years Experience: Risking Seismic Amplitude Anomaly Prospects; #110139 (2010)

Mike Forrest

Search and Discovery.com

....” Factors: o Rock physics o Seismic signal-to-noise ratio o Geology vs. seismic resolution. Review the Seismic and Rock Physics. Can DHI’s be a factor in your...

Wave-Equation-Based Target-Oriented Inversion for Reservoir Characterisation, #41759 (2016).

Dries Gisolf, P.R. Haffinger, P. Doulgeris

Search and Discovery.com

... example a gas-related amplitude effect was revealed that had not been identified on the seismic data. Reference Cited Beller, M. P. Doulgeris, A. Gisolf...

Practical Models for Computing CO2 Solubility in Brines with Complex Ions for Carbon Geo-Sequestration Applications

Gideon Gyamfi, David Kwaku Danso, Xiaoli Li

Unconventional Resources Technology Conference (URTEC)

... model that considers the effect of the ionic strength of multiple cations and anions in formation water with the temperature, pressure, and salinity up...