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The AAPG/Datapages Combined Publications Database

Showing 22,173 Results. Searched 200,357 documents.

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ABSTRACT: PERFORMANCE OF HIGH RESOLUTION INDUCTION TOOL (HRI) IN WRBC; #90013 (2003)

B. R. KUNDU, K. K. PRASAD, CHATAR SINGH

Search and Discovery.com

... of such resistivity tools and has a vertical resolution of 24’’. It is claimed to be based on True Resolution Focus, where the deep measurements...

2003

Improved Exploration, Appraisal and Production Monitoring with Multi-Transient EM Solutions

Search and Discovery.com

...), on the other hand, delineates high resistivity layers in the subsurface, provides a quantitative estimate of the transverse resistance (resistivity x thickness...

2013

Stratigraphic Control and Formation Evaluation of Horizontal Wells Using MWD

L. R. B. Hammons, E. K. Fisher, D. H. Sellers

Pacific Section of AAPG

... 1,700 ft (518 m) true vertical depth (TVD) to 14,800 ft (4,511 m) TVD. Resistivity values in these sands typically exceed 20 ohm-meters, and formation...

1992

Abstract: Wireline Geochemical Log Analysis of Thin Bed Reservoirs Gulf of Mexico

R. V. Everett

Houston Geological Society Bulletin

... sections in offshore Pliocene strata has been facilitated by the increased resistivity associated with the oil and gas over the associated shales and water...

1989

Use of Temperature Measurements for Cementation Control and Correlations in Drill Holes

Alexander Deussen, Hubert Guyod

AAPG Bulletin

...) determination of geothermal gradients, that is, the increase of temperature with depth, and (2) determination, in laboratories, of the thermal...

1937

A Multilog-Evaluation Package Using Linear Programming Techniques to Evaluate Porosity and Lithology in Hydrocarbon Bearing Complex Lithologies

P. J. D. van Ditzhuijzen, D. Masson

Southeast Asia Petroleum Exploration Society (SEAPEX)

... ρf1 fluid density, g/cc Ri log response of log i ρ1 matrix density for limestone, g/cc Rt true resistivity, ohmm ρd matrix density for dolomite...

1984

High-resolution Electrical Borehole Images While Drilling

Jeremy Lofts, Stephen Morris

AAPG Special Volumes

... was conducted. The three-dimensional calculation took into consideration the size and location of the borehole as well as the true resistivity...

2010

Log Response as a Model for Production: Deep Wilcox Sandstones, Provident City Field, Lavaca County, Texas

James L. Collins

GCAGS Transactions

... in terms of porosity, resistivity and shaliness explained highly variable rates of gas, water and formation fines produced in the thirteen wells...

1989

ML-based deconvolution method for high-resolution fast inversion of induction log data in deviated wells

Teruhiko Hagiwara

International Meeting for Applied Geoscience and Energy (IMAGE)

...) is the true formation resistivity at the depth zi. We found for an elemental induction log 2C40 with 40” transmitterreceiver offset, the 21 points...

2022

Machine learning and explainable AI for predicting missing well log data with uncertainty analysis: A case study in the Norwegian North Sea

Sushil Acharya, Karl Fabian

International Meeting for Applied Geoscience and Energy (IMAGE)

... missing log values from other commonly available logs, such as resistivity, density, gamma ray, neutron porosity, photoelectric factor, etc. Linear...

2024

ABSTRACT: A Model-Based Method to Supply Missing Log Information; #90013 (2003)

MICHAEL A. FRENKEL

Search and Discovery.com

... resistivity distribution under different environmental conditions. However, the full benefit of array technology can only be achieved if multi-dimensional...

2003

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

...-dip structural environments using azimuthal resistivity: Society of Petrophysicists and Well Log Analysts Paper SPWLA–2016–UUUU, Houston, Texas, 13 p...

2017

Laminated Reservoir Evaluation in a Case of High Apparent Dip

Gary Frisch, B. Dean Gulick, Michael Manning

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... are in error because porosity and resistivity logs generally do not obtain true values of these formation properties; however, porosity and water...

1994

Workflow for Pore Pressure and Horizontal Stress Field Estimation in Vertical Wells Using Well Data in the XŽ Field in South Sumatra

Mohammad Zulfikar Simatupang, Bonar Tua Halomoan Marbun, Ramadhana Aristya, Niko Pratama Purba

Indonesian Petroleum Association

... times. The key logs for pore pressure interpretation are resistivity and sonic for the purpose of shale porosity determination, the density log...

2013

Geological Aspects of Horizontal Wells in Petani Field, Central Sumatra

F. X. Darmono

Indonesian Petroleum Association

... be recognized from oil shows as well as resistivity and gas readings. True Vertical Depth (TVDs) calculated from the directional surveys supported...

1994

Geochemical Study of a Reef Complex

Charles E. Weaver

AAPG Bulletin

... increases as the carbonate content increases. Little change of pattern results from the correction of apparent resistivity values to true resistivity...

1968

Andy’s Mesa Unit, San Miguel County, Colorado

Chris M. Amador, Stephen G. Schurger, Brent L. Miller

Rocky Mountain Association of Geologists

.... Issues impacting AMU net pay determination include low contrast and low resistivity pay. However, with careful evaluation of subtle log...

2009

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

Roy D. Nurmi

Houston Geological Society

... oil zones. Today, however, nuclear magnetic resonance (NMR) is beginning to be used for permeability profiling, a dream come true, and is revealing...

1998

Application of Integrated Geophysical Techniques to Characterize the Edwards Aquifer, Texas

Charles B. Connor, Stewart K. Sandberg

Bulletin of South Texas Geological Society

...) resistivity data picks the major stratigraphic boundaries, including the top of the Austin Chalk and the top of the Edwards Aquifer itself, at a depth...

2001

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