Multi-survey full-waveform inversion gradient balancing with illumination probing method

James Xu, David F. Halliday, Federico G. Andreasi, Xikai Zhao, James Rickett

International Meeting for Applied Geoscience and Energy (IMAGE)

.../weak gradient amplitudes are due to illumination effect or model errors. In addition, gradient balancing problem do not only exist in multi-survey...

A Seismic Method for Estimating Subsurface Vp/Vs Ratio Based on Converted Waves: A Case Study From Arabian Gulf

Search and Discovery.com

Crustal and Lithospheric Structure of the CarpathianPannonian Region: A Geophysical PerspectiveRegional Geophysical Data on the CarpathianPannonian Lithosphere

L. Pospil, A. dm, J. Bimka, P. Bodlak, T. Bodoky, P. Dvnyi, H. Granser, E. Hegeds, I. Jo, A. Kendzera, L. Lenkey, M. Nemok, K. Posgay, B. Pylypyshyn, J. Sedlk, W. D. Stanley, G. Starodub, V. Szalaiov, B. ly, A. utora, G. Vrga, T. Zsros

AAPG Special Volumes

... originated from Tertiary sedimentary basins that creates substantial parts of the gravity effect. The main part of the gravity effects originating from...

Fast Gauss-Newton full-wavefield migration

Siamak Abolhassani, Eric Verschuur

International Meeting for Applied Geoscience and Energy (IMAGE)

... into a local minimization problem with a data error functional as a sum of squares of errors between the modeled and observed data (e.g., Cole and Karrenbach...

A new surface-line method for 5D interpolation of orthogonal surveys

Charles Ursenbach, Beng Seong Ong, David Wilkinson

International Meeting for Applied Geoscience and Energy (IMAGE)

...) determines a unique receiver station (RS). Our data example is taken from the 400 km2 West Kermit land survey in the Delaware Basin. Figure 7 shows the effect...

Shea Creek - A Deep Geophysical Exploration Discovery

Rodney R. Koch and Frank Dalidowicz

Saskatchewan Geological Society

... and geological assessment of the prospective area. Location The Shea Creek Project, wholly owned and operated by Cogema Resources Inc., is located in an area...

3.2 Basement Involved: 3.2.1 Crustal Profiles: COCORP Deep Seismic Profiles Across the Wind River Mountains, Wyoming

AAPG Special Volumes

.... Location map of COCORP seismic reflection profiles 1, 1a, and 2 traversing the southeast end of the Wind River uplift. Hatched area represents...

Abstract: Geometry Factor for near Surface Borehole Resistivity Surveys: a Key to Accurate Imaging and Monitioring; #90224 (2015)

Kun Guo, Bernd Milkreit, and Wei Qian

Search and Discovery.com

... could result in systematic errors well above typical data noise level. It is also shown in Yi et al., 2009 that borehole deviation effect may cause...

Tertiary Volcanic Stratigraphy and Reservoir Characteristics of Trap Spring Field, Nye County, Nevada

Don E. French, Kevin J. Freeman

Rocky Mountain Association of Geologists

... Mountain Association of Geologists 488’ DON E. FRENCH and KEVIN J. FREEMAN EAST-CENTRAL NEVADA Miles 0 1. 0- 20 30 I LOCATION MAP ’ 0...

Mass-Spring-Damper System as the Mathematical Model for the Pattern of Sand Movement for an Eroding Beach Around Digha, West Bengal, India

A. Chakrabarti

Journal of Sedimentary Research (SEPM)

... of erosional and depositional envelopes between beach zones revealed a cyclicity in the offshore-onshore movement of sediment. An intefering effect of two...

Gravity Field of Kuwait and its Relevance to Major Geological Structures (1)

WARIS E. K. WARSI

AAPG Bulletin

... to short loops, flat topographic relief, and frequent repeat observations. Maximum station location errors are estimated to be plus or m nus 200 m...

AVA on communication cables: Principles and Examples from the North Sea

Ran Bachrach, Ali Sayed, Andrea Murineddu, Pilar Di Martino

International Meeting for Applied Geoscience and Energy (IMAGE)

...ty effect results in complementary response on the 𝑣 𝑧 and 𝑣 𝑥 PP AVA response. The 𝑣 𝑧 AVA drops with an increasing angle, where...

Short-Term Sediment Yields from Small Catchment of Sungai Anak Bangi Selangor

Mohd Ekhwan Toriman, Mazlin Bin Mokhtar, Othman Karim, M. Barzani Gasim, Raihan Taha

Geological Society of Malaysia (GSM)

... values recorded for both stations are considered low, with 19.47 mg/l and 25.23 mg/l recorded at Station 1 and Station 2, respectively. When converted...

Sand Fountains in the Surf Zone

Benno M. Brenninkmeyer

Special Publications of SEPM

... much bore has sufficient suctional effect when lift sediment above the substrate to Twice lag zone occurs primarily at the still hydraulic jump...

Physical Processes in the Ocean: Part 2: Relation of Oceanography to Sedimentation: PART 1

R. H. Fleming, Roger Revelle

AAPG Special Volumes

..., has a marked effect upon the physical conditions and the biological productivity. The types of sediments laid down in any area depend largely upon...

Influence of node position uncertainty on FWI and Mirror-RTM

Felipe Capuzzo, Marco Cetale, Sergio Luiz da Silva, Roger Moreira, Felipe T. Costa, Ammir A. Karsou, Jorge Lopez

International Meeting for Applied Geoscience and Energy (IMAGE)

... are the node positions. RESULTS To evaluate the effect of the geometry errors on the inversion results, we first analyzed the normalized objective function...

Constraints on the nature and thickness of sedimentary fill and underlying basement rocks in Bowser and Sustut basins, north-central British Columbia from analysis of potential field data

Carmel Lowe, Judith Baker, Carol Evenchick

CSPG Bulletin

... that is too high yields estimates that are too deep. The technique is extremely sensitive to gradients, consequently errors in location and data...

Sampling Surficial Fluvial Gravels: The Precision of Size Distribution Percentile Estimates

Stephen Rice , Michael Church

Journal of Sedimentary Research (SEPM)

... percentile standard errors. The effect of the number of replications, B, on the stability of bootstrap results was also studied. Figure 3 compares...

Structural History of Southwestern Wyoming as Evidenced From Outcrop and Seismic

David W. Stearns, W.R. Sacrison, R.C. Hanson

Rocky Mountain Association of Geologists

... of Wyoming indicating location of study area and seismic lines. Seismic lines A-A' and B-B' are Plates 1 and 2 (in pocket). In recent years there has...

Prestack Depth Migration for "Easy" Unconventional Plays?, #41056 (2012)

Morgan Brown

Search and Discovery.com

... three key reasons for (re)considering PSDM: 1) Remove false time structures caused by lateral variations in velocity. The ‘fault shadow’ effect...

Holocene Neotectonics and the Ramapo Fault Zone Sea-Level Anomaly: A Study of Varying Marine Transgression Rates in the Lower Hudson Estuary, New York and New Jersey

Walter S. Newman, Leonard J. Cinquemani, Jon A. Sperling, Leslie F. Marcus, Richard R. Pardi

Special Publications of SEPM

... of the Highlands gorge (Odom and Hatcher, 1980). Seismicity suggests Holocene high-angle reverse faulting associated with the RFZ (Agganval and Sykes, 1978). Neither...

Enhanced Oil Recovery: An Innovative Approach to Optimize Liquid Hydrocarbon Recovery in a Depleted Reservoir, #40742 (2011)

Surajeet Rath

Search and Discovery.com

... to this effect. Therefore, the change in alignment/orientations in the affected grains will generate some errors in the computations and final computed...

Sediments and Sedimentary Structures of a Beach-Ridge Complex, Southwestern Shore of Lake Michigan

Gordon S. Fraser, Norman C. Hester

Journal of Sedimentary Research (SEPM)

... are deposited in the marsh, and well-sorted sand in low-angle accretionary cross-sets is found both in dunes and on eolian sand plains. Beach-ridge...

Mapping of Rock Property Changes in Space and Time Using Microseismic Data through Full-Waveform Inversion

Jyoti Behura

Unconventional Resources Technology Conference (URTEC)

... of the seismicity. Figure 1: Effect of pore and confining pressures on VP and VS of the Pierre shale (Tosaya, 1982). State of microseismic-data...

Mobile Separator Test as Multi Phase Flow Meter Unit

Aliefiyan Nursanda Muklas, Ali Hamzah, Bonni Ariwibowo, Slamet Wardiman, Maryadi Fadli

Indonesian Petroleum Association

..., but not every station has proper testing facilities due to limited facilities and/or remote location. These sometimes challenging conditions have led us to use...