Karst topography paces the deposition of lower Permian, organic-rich, marine–continental transitional shales in the southeastern Ordos Basin, northwestern China

Xi Zhang, Xiaoming Zhao, Jiawang Ge, Shuxin Li, and Tingshan Zhang

AAPG Bulletin

... ray (GR), density (DEN), and acoustic (AC) logging data (D); seismic velocity (E); modal mineralogy (F); Sr/Ba, Ni/V, Ni/Co, and U/Th ratios (G); total...

Crustal Structure Study on Gulf Coast of Texas

A. L. Hales , C. E. Helsley , J. B. Nation

AAPG Bulletin

... decreases as the distance from shore increases. This change is due largely to the northward thinning of the low-velocity sediments. At sea the reduced...

Integrated Full Waveform Inversion and Dip Constrained Tomography for Complex Carbonate Imaging - Case Study from Indonesia

Yonghe Guo, Jun Wang, Pongga Wardaya, Riaz Alai, M Afiq B Mokhtar, Rizki Krishna Pratama, Haryono Haryanto

Indonesian Petroleum Association

... reflection energy to be picked or matched to. The unresolved fast carbonate velocity anomaly creates a different pull up effect in different offsets...

Seismic Monitoring of Cold Heavy Oil Production

Tingge Wang

Search and Discovery.com

... in the reservoir. This could change the stress and rigidity of sand matrix in the reservoir, and the changes could result in velocity variations...

Seismic Monitoring of Cold Heavy Oil Production

Tingge Wang

Search and Discovery.com

... in the reservoir. This could change the stress and rigidity of sand matrix in the reservoir, and the changes could result in velocity variations...

Optimization of the Proppant Placement Through the Perforations in Multistage Hydraulic Fracturing: A Laboratory-scale Experimental Investigation

Nadia Mouedden, Aimen Laalam, Harry Feilen

Unconventional Resources Technology Conference (URTEC)

... In this section, we focused on the effect of proppant concentration and size on the settling velocity where all the other parameters have been kept constant...

Cost Effective Seismic Acquisition in the Papuan Foreland Basin

A. Garcia, J. D. Schneider, F. E. Doughty

Papua New Guinea (PNG) Petroleum Convention Proceedings

... to locals because of the adverse effect on their immune systems once the seismic operation left the area and prophylactics were no longer provided...

Identification of Fluid Movement in the Formation and Behind Casing Through the Use of Thermal and Acoustic Energy from Production Logs

Jose González, Alejandro Linares, Jairo Pérez, Alexander Castro, Virginia Mayorga, Danelys Bernal Correa, Juan Marin, Mario Ardila Moreno, Diego Rodriguez, Jose Vasquez

Unconventional Resources Technology Conference (URTEC)

... in the form of kinetic and potential energy. The Doppler effect is the apparent change in frequency of a wave produced by the relative motion of the source...

Abstract: Onshore U.S. Depth Imaging and Velocity Model Building, by Morgan P. Brown, Joseph H. Higginbotham, Cosmin Macesanu, and Oscar E. Ramirez; #90124 (2011)

Search and Discovery.com

Calibration of Seismic Sequence Stratigraphy with Cores and Logs

Gregor P. Eberli, Flavio S. Anselmetti, Jeroen A.M. Kenter, Donald F. Mcneill, Leslie A. Melim

Special Publications of SEPM

... significant change because it creates a hard dense layer that is then overlain by loose sediment providing an abrupt velocity change and thus...

Application of Sequential Offset Technique in Full Waveform Inversion; #42598 (2025)

Binggang Wang

Search and Discovery.com

... ray density in shallow layers and the effect of far-offset data on shallow velocity can result in inaccuracies during the iterative inversion...

Molecular Dynamics Simulation of Nanoconfined Methane Flow Through Realistic Organic Shale Matrix

Zheng Sun, Ke Wang, Zhaopeng Yang, Kang Tang, Hao Xiong, Liang Huang, Yanan Miao, Zhiqiang Wang, Xin Zhang, Xiangfang Li

Unconventional Resources Technology Conference (URTEC)

...-equibrium molecular dynamics (NEMD), the density and velocity distribution under different pressure differences are presented. Furthermore, detailed...

Sedimentary Structures Generated by Flow in Alluvial Channels

D. B. Simons, E. V. Rlchardson, C. F. Nordin JR.

Special Publications of SEPM

... effect on resistance of flow with a change in depth with ripples there is a relative roughness effect and with dunes there is not ripples do not form...

Fracture Identification and Evaluation Using S Waves, by Bob Hardage, #40792 (2011).

Search and Discovery.com

Stabilizing two-term clock-drift inversion in ocean-bottom node processing

Beng Seong Ong, Zhaojun Liu, Carsten Udengaard

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Let 𝑚 denote the vector containing the water velocity model change, all shot positions, all receiver positions and coefficients of the clock-drift...

A Report on the Renaissance of Gravity in the Deep Water Gulf of Mexico: A Practical View of Integration Methods

Brian S. Anderson, Mark E. Weber, John E. Bain

Houston Geological Society

... are analyzed, typically using cross plots, and a function is derived to convert between the density and the velocity volumes. The gravity effect...

RhoVe T Method Empirical Velocity-Density-Temperature-Effective Stress Transform

Matt Czerniak

GCAGS Transactions

...RhoVe T Method Empirical Velocity-Density-Temperature-Effective Stress Transform Matt Czerniak 2019 55 60 Vol. 69 (2019) No. 1. The rhob-velocity...

Numerical Modeling of Adsorption and Roughness Effects on Gas Transport in Shale Using the Lattice Boltzmann Method; #42070 (2017)

Yan Zeng, Zhengfu Ning, Yunan Li

Search and Discovery.com

..., a pressure-dependent adsorption thickness was adopted to study the effect of pore size change. The above mechanisms N GMS  1    qsat were applied...

Argillaceous Rock Compaction and Primary Migration in the Mangnai Depression, Qaidam Basin, China

Chen Heli

Circum Pacific Council Publications

... abnormal mudstone unit is in the Youshashan group (N * - N ) except along the northern and southern margins (Figure 2). This change in position...

Seismic Reflections from a Lau Basin Magma Chamber

Janet L. Morton, Norman H. Sleep

Circum Pacific Council Publications

... of this effect, we computed synthetic common midpoint gathers by raytracing through two velocity models: one with two flat layers representing...

Potential Field Data Guided Seismic Forward Modelling of Basement Structures: A Case Study from Offshore Nile Delta Basin

Said Hanafy, Shastri L. Nimmagadda, Sharaf Eldin Mahmoud

Petroleum Exploration Society of Australia (PESA)

... is applied to keep the reflections as they are without any change, but replacing the velocity values of the water (1500 m/sec), shallow sedimentary section...

9C data acquisition for near-surface imaging in a quick-clay landslide-prone site in SW Sweden

Tatiana Pertuz, Alireza Malehmir

International Meeting for Applied Geoscience and Energy (IMAGE)

... to the effect of deglaciation period in the Pleistocene, where several water bodies such as rivers and lakes were formed along zones of weaknesses...

What is Horizontal Resolution?

L. R. Denham, R. E. Sheriff

Indonesian Petroleum Association

... approximately the same effect as a velocity which is 5% too low. Much real seismic data has arrivals from reflectors and diffractors more than 20° off-line...

Sonic Log Analysis from Isotropic and Anisotropic Media In Carbonate Reservoir, the Case Study at Stella Alpina Field

Wahyu Tri Sutrisno, Septian Prahastudhi, Ari Teguh Sugiarto, Ayi Syaeful Bahri, Dwa Desa Warnana, Yulia Putri Wulandari

Indonesian Petroleum Association

... for amplitude and shear wave velocity distribution. Keywords: Sonic Log, Anisotropy, Carbonate Reservoir INTRODUCTION The Stella Alpina field is located...

The Evolution of FWI and its Perceived Benefits

Tony Martin, Andrew Long

Australian Petroleum Production & Exploration Association (APPEA) Journal

... towed streamer data lacked the very long offsets and ultra-low frequencies necessary to derive stable velocity updates beyond shallow depths. FWI now...