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The AAPG/Datapages Combined Publications Database

Showing 8,959 Results. Searched 190,142 documents.

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Geocentric Sectoring of LWD Azimuthal Log Data for Improved RDIP and RSTRIKE Analysis: Enhanced Reservoir Navigation and Petrophysical Characterization

James J. Willis, Lauren A. Martz

GCAGS Transactions

... to the wellbore, waves critically refracting along a layer boundary with a fast formation proximal to the borehole may control the first arrivals...


Semiautomated Lateral Landing Advisor for On-Time Decisions Utilizing Digital Borehole Sonic Services and Next-Generation Cloud-Based Fracturing Design

Edgar Velez, Juan David Estrada, Adam Donald, Romain Prioul, Ting Lei, Erik Wielemaker, Violeta Lujan

Unconventional Resources Technology Conference (URTEC)

... of the borehole sonic tool as described by Walsh et al. (2013).The sensitivity of the Stoneley wave to the formation shear modulus is well known...


Image Log Interpretation and Lessons Learnt from Fracture Data Acquisition in Oil Based Mud System: Case Study of Fractured Sandstone Reservoirs in West Natuna Basin

Masio Patria, Bambang Pujasmadi, Wawan Satriawan, Budiyono

Indonesian Petroleum Association

..., K., Cheng. C. H. A., Tang, X. M., 1997, Modeling of Low Frequency Stoneley Wave Propagation in an Irregular Borehole: Geophysics, 1997, 62:4...


Fractured Basement Reservoir Characterization for Fracture Distribution, Porosity and Permeability Prediction; #41106 (2012)

Marie Lefranc, Sherif Farag, Laurent Souche, and Agnes Dubois

Search and

... of flow contributing fracture sets, which are estimated from: (1) the analyses of borehole images, sonic measurements, conventional log data...


Downhole Geological Technology: Evolution, Breakthroughs and Emerging Solutions to Assessing Discoveries and Finding New Oil in and Around Old Fields

Roy D. Nurmi

Houston Geological Society Bulletin

... of the borehole wall. When compared to a core of the same interval, this data confirmed the need for an electrical image or a scanning tool. Thus...


ABSTRACT Identifying Stress-Induced Anisotropy and Stress Orientation Using Cross-Dipole Acoustic Logging, #90104 (2010)

Zheng Yibing; Tang Xiaoming; Patterson Douglas

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..., the stress information can help in planning well paths and  maintaining borehole stability. In this paper we present an effective and reliable method...


Using Borehole Images for Target-Zone Evaluation in Horizontal Wells

Neil F. Hurley , David R. Thorn , Janine L. Carlson , Sandra L. W. Eichelberger

AAPG Bulletin

...Using Borehole Images for Target-Zone Evaluation in Horizontal Wells Neil F. Hurley , David R. Thorn , Janine L. Carlson , Sandra L. W. Eichelberger...


Abstract: Seismic Rayleigh wave method for imaging subsurface cavities

Jon C. Q. Xu, Stephen D. Butt, Patrick J. C. Ryall

Atlantic Geology

... seismic Rayleigh waves allow us to detect and image subsurface anomalies. Instead of using the conventional spectral analysis of surface waves (SASW...


Characterizing and Modeling Multi-Scale Natural Fractures in the Ordovician-Silurian Wufeng-Longmaxi Shale Formation in South Sichuan Basin

Qin Jun, Chenggang Xian, Xing Liang, Chuanduan Zhao, Gaocheng Wang, Lizhi Wang

Unconventional Resources Technology Conference (URTEC)

... dipole shear and Stoneley waves. Occasionally, natural facture corridors can cause mud losses, pipe-stuck or proppant screening-out while drilling...


VSP Fundamentals that Improve CDP Data Interpretation: ABSTRACT

J. E. Gaiser, J. P. Disiena

AAPG Bulletin

.... The areas covered are VSP acquisition, critical points of the processing sequence, and applications to borehole information in depth and CDP data in time...


Principles and Techniques of VSP Data Processing

A.A. Tabakov, V.N. Ferentsi, H.Garvini

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... model recovery, direct impulse shape estimation and zero-phase deconvolution, detailed surface-borehole tie, high-resolution imaging and dynamic...


ABSTRACT: Shallow Shear-Wave Seismic Velocity Testing in Jackson, Mississippi

David T. Butler, III, and James B. Harris

GCAGS Transactions

... to experience greater levels of earthquake damage due to amplification of seismic waves than areas underlain by rock. Earthquake hazards studies...


Abstract: An Alternative Analysis of Surface Waves Data for Site Characterization

Abdul Rahim Samsudin, Suharsono, Abdul Ghani Rafek

Geological Society of Malaysia (GSM)

...Abstract: An Alternative Analysis of Surface Waves Data for Site Characterization Abdul Rahim Samsudin, Suharsono, Abdul Ghani Rafek 210...


Abstract: Near-surface S-wave Velocity from an up Hole Survey using Explosive Sources; #90187 (2014)

Saul E. Guevara, Gary F. Margrave, and William M. Agudelo

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... that S-waves were generated by explosive sources inside the borehole. As the strong event on the vertical component or First Breaks (FB) corresponds to direct...


Paleochannel sands as conduits for hydrocarbon leakage across faults: An example from the Wilmington oil field, California

Linji Y. An

AAPG Bulletin

... and borehole Stoneley waves: Comparison between experiment and theory: Geophysics, v. 54, p. 66–75, doi:10.1190/1.1442578.Winterburn, R., 1940...


Delineation of Shallow Gulf Coast Structure and Stratigraphy Using Seismic Shear Wave Reflections

T. L. Dobecki and J. Steele

Houston Geological Society Bulletin

... provide interpretation of shallow stratigraphic changes. The use of shear waves in seismic refraction studies was described in an earlier paper (Dobecki...


Reservoir Characterization of Water Zone above Oil-Water Contact in a Carbonate Reservoir, Offshore Abu Dhabi, #41833 (2016).

Christophe Bassem Maalouf, Irina Baca Espinoza, Nusrat Afrin Afzal, Jorge Costa Gomes, Salem Al-Jaberi

Search and

... and with permeability derived from Stoneley waves. The last track shows interpreted fluid saturation: BVI water (light blue), Movable water (dark blue), Flashed...


Study of Sub-Salt Sediments in the Bayram-Ali Gas Region

V. A. Teplitskiy, I. P. Belozerov, B. M. Geyman, V. P. Lupanosov

Petroleum Geology: A Digest of Russian Literature

... horizons were found in the sub-salt sediments. A different method was needed to trace the reflected waves from the sub-salt interfaces. Borehole seismic...


Abstract: Velocity Anisotropy from Core Measurements, VSP and Sonic Logs Analysis in a Single Well Study in NE Alberta; #90224 (2015)

Judith Chan and Douglas R. Schmitt

Search and

... performed on a core sample. However, with the limited cores available from our borehole of interest in NE Alberta, additional field measurements...


Estuarine/Offshore Depositional Sequences of the Cretaceous Aptian-Albian Boundary England

Alastair Ruffell, Grant Wach

Special Publications of SEPM

... and the southern Midlands, one of the best-known examples being Leighton Buzzard (Casey, 1961). Subsurface borehole records of the Aptian-Albian strata...



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Ultrasonic Images - New Applications: Examples From Kalimantan

Aussie B. Gautama, Firmansjah, W. Scott Leaney, Steven M. Hansen

Indonesian Petroleum Association

..., bringing new applications to all wellbores. Ultrasonic high resolution images, previously known as borehole televiewers, have provided a breakthrough...


Integrating Core Data and Wireline Data for Formation Evaluation and Characterization of Shale Gas Reservoirs; #41073 (2012)

John Quirein, Dan Buller, Jim Witkowsky, and Jerome Truax

Search and

... to (acoustic) anisotropy in various ways (Market et al., 2010). Compressional waves travel parallel to the wellbore and do not generally split, so we see one...


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