The Resistivity Logs

John H. Doveton

Special Publications of SEPM

... of resistivity can be seen from the equation to be ohm-meter*/meter, which is usually contracted to oh-meter or ohm-m. Conductivity is the reciprocal...

Effect of Overburden and Reservoir Pressure on Electric Logging Formation Factor

I. Fatt

AAPG Bulletin

.... JONES, G. MYSELS, K. J., AND JUDA, W., 1940, "The Measurement of the Conductance of Electrolytes, IX, The Use of the Cathode Ray Oscilloscope...

Powder X-Ray Diffraction Analysis of Homogeneous and Heterogeneous Sedimentary Dolostones

Brian Jones, Robert W. Luth, Alexander J. MacNEIL

Journal of Sedimentary Research (SEPM)

... of these results, the simple G-L peak shape was adopted for subsequent use in the Lumsden equation to calculate the %Ca. FIG. 5. Comparison of X-ray...

Petrophysics of the Ramsey Sandstone, Ford Geraldine Unit, Reeves and Culberson Counties, Texas

G. B. Asquith, S. P. Dutton, A. G. Cole, Muhammad Razi, Jose I. Guzman

West Texas Geological Society

... of the following: 1) Gamma Ray-LLD-MLL-Sonic, 2) Gamma Ray-LLD-MLL-Neutron, 3) Gamma Ray-LLD-Sonic; and 4) a few Gamma Ray-LLD-LLS-CNL-FDC. Because most...

The Application of 2D Common-Offset Common-Reflection-Surface (CO CRS) Stack Method Towards Synthetic Data

Parapaty Halley, Rachmat Sule, Teuku Abdullah Sanny

Indonesian Petroleum Association

... ray (Figure 2), computed at the respective emergence points. This equation (1) is called the CO CRS stacking operator. The wavefront curvatures (K1...

A depth uncertainty estimation method using interval-domain anisotropic VTI velocity and travel time detectability criterion

Andrey H. Shabelansky, Cory J. Hoelting, Min Yang, Sizhuang Deng, Jinsong Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... timedependent properties only. We use the semi-analytic equation for travel time computation in VTI media in the interval time domain (e.g., Douma and van...

Combining Water Saturation/Ratio Method, Moveable Hydrocarbon Index, Bulk Volume Water And Archie Water Saturation: Chapter V

George B. Asquith

AAPG Special Volumes

...). Then, the following results: [EQUATION] Where: F = formation factor; Sxo = water saturation, flushed zone; Sw = water saturation, uninvaded zone; Rxo = resistivity...

Abstract: Statics Preserving Sparse Radon Transform; #90224 (2015)

Nasser Kazemi

Search and Discovery.com

... aperture of the data, missing traces, aliasing, finite number of scanned ray parameter, noise and statics are the major sources of artifacts. This fact...

AAPG Methods in Exploration, No. 16, Chapter 3: Gamma Ray

George Asquith and Daniel Krygowski

AAPG Special Volumes

...AAPG Methods in Exploration, No. 16, Chapter 3: Gamma Ray George Asquith and Daniel Krygowski 2004 31 35 Basic Well Log Analysis (Second Edition...

NMR Interpretations in Unconventional Reservoirs - Application to Quality Control and Guide for Log Calculated Total Water Saturations in the Texas Delaware Basin

Jing Li, Mitch Pavlovic

Unconventional Resources Technology Conference (URTEC)

... the written consent of URTeC is prohibited. Abstract Traditional petrophysical workflows estimate the water saturation using the Archie equation (Archie...

Water Saturations in a Wilcox Shaly Reservoir Sandstone, Fordoche Field, Point Coupee Parish Louisiana

Charles R. Berg , Robert R. Berg

GCAGS Transactions

..., however, typically has low resistivity. The Archie (1942) saturation equation works well under these conditions, but when conductive clay minerals...

Log Interpretation Case Studies: Chapter VIII

George B. Asquith, Charles R. Gibson

AAPG Special Volumes

...] [EQUATION] Where (Formula Variables): GRlog = Gamma ray reading from various depths in Pictured Cliffs Sandstone (for depths picked, see Log...

Ultrasound reverse time migration for human brain imaging

Ting Li, Bo Feng, Yang Zhou, Rongwei Xu, Huazhong Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... the time dispersion, we treat the acoustic wave equation as a harmonic oscillator differential equation and obtain its exact finite difference scheme...

Integrated Seismic Multi-Attribute Analysis for Complex Fluvio-Deltaic Reservoir Properties Mapping, Minas Field, Central Sumatra

Sigit Sukmono, Dardji Noeradi, Faizil Fitris, Tafsillison, William C. Richmond, Seffibudianti, Pujiyono

Indonesian Petroleum Association

...). The integrated attributes include: 1) internal seismic attributes (amplitude, frequency, etc), and 2) log property attributes (porosity, gamma ray...

Combined Thermal Multi-Gate Decay Lithology Log and Open-Hole Log Applications to Strengthen Testing Justification in a Blind Drilling, Exploration Well Case, North Sumatra Basin

Nadia Nurul, Azazi Daulati, Gumelar, Maranu Ricardo, Ferry F Baskaraputra, Joan C L Tobing, Mahadevan S Iyer

Indonesian Petroleum Association

... hole (GROH). Equation was applied to generate pseudo gamma ray log. Figure 6 - Pseudo sonic log by using the Faust equation based on the resistivity...

Direct Diffractometric Quantitative Analysis of Synthetic Clay Mineral Mixtures with Molybdenite as Orientation-Indicator: NOTES

Joost Quakernaat

Journal of Sedimentary Research (SEPM)

... for chlorite, vermiculite and pyrophyllite were accurate to within about 10%. ALEXANDER, L. E. AND KLUG, H. P., 1948, Basic aspects of x-ray...

Some Applications of CT-Scanner in Petroleum Engineering

Septi Anggraeni, Indra Jaya, Bambang Widarsono, Hari Hardiman, Pamuji, Alit Gurmilang

Indonesian Petroleum Association

...-Ray energies (above 100 kV). The second term in Equation 2 accounts for photoelectric absorption, which is more important at X-Ray energies well below...

Precise Sediment Density Determination by Gamma-ray Attenuation Alone: NOTES

Robert B. Whitmarsh

Journal of Sedimentary Research (SEPM)

...Precise Sediment Density Determination by Gamma-ray Attenuation Alone: NOTES Robert B. Whitmarsh 1971 Vol. 41 No. 3. (September), A difficulty...

Advanced Approach Toward Understanding Geologically Complex Area Using MDRS (Multi-Dip CRS): A Case Study

Naoshi Aoki, Shogo Narahara, Akihisa Takahashi, Tsukasa Nishiki

Indonesian Petroleum Association

... the source-receiver offset and the midpoint coordinate. In the equation, α represents the emergence angle of ZO ray; KN and KNIP are curvatures...

Mineralogical Analysis of Suspended Cohesive Sediment Using an Analytical Electron Microscope

Robert Bryant, David J. A. Williams

Journal of Sedimentary Research (SEPM)

... independently of mineralogical analysis by powder X-ray diffractometry. BEAMAN, D. R., AND FILE, D. M., 1976, Quantative determination of asbestos fibre...

Analytical Method to Accurately Estimate Overpressure Magnitude: The Case Study from Indonesia's Tertiary Basins

Agus M. Ramdhan, Lambok M. Hutasoit, Arifin

Indonesian Petroleum Association

... (1975) introduced empirical equation to estimate effective stress from the sonic log as illustrated in Figure 1 by using the following equation...

Can Resistivity be Predicted from Elastic Properties?

Maman Hermana, Luluan A. Lubis, Cow Weng Sum, Deva P Ghosh, Kazuki Ishikura

Indonesian Petroleum Association

... Annual Convention Proceedings, 2017 equation is used to estimate the bulk modulus of saturated rock condition. Background Theory The velocity...

Rate of Penetration: Part 3. Wellsite Methods

Scott Boone

AAPG Special Volumes

... speed. Correlation The ROP log is the first source of data that can be used to correlate to nearby wells. This is done by comparing ROP to gamma ray...

High-Resolution Geochemical Assessment of Two Wolfcamp Formation Cores in the Southern Delaware Basin

Search and Discovery.com

X-Ray Determination of Calcite-Dolomite: an Evaluation

C. F. Royse, Jr., J. S. Wadell, L. E. Petersen

Journal of Sedimentary Research (SEPM)

...X-Ray Determination of Calcite-Dolomite: an Evaluation C. F. Royse, Jr., J. S. Wadell, L. E. Petersen 1971 Vol. 41 No. 2. (June), The observation...