Lower Ordovician Ellenburger Group Collapsed Paleocave Facies and Associated Pore Network in the Barnhart Field, Texas

Deanna M. Combs, Robert G. Loucks, Stephen C. Ruppel

West Texas Geological Society

...-trending faults. Recognition that apparent breaks in correlations may define collapsed brecciated bodies provides a potential basis for the mapping...

Elk Hills Monterey Formation - Challenge of Incorporating Complex Natural Fractures to Improve Production Understanding

Robert Gales, Rad Sobczyk, Nicholas Harvey

Unconventional Resources Technology Conference (URTEC)

... Available The reprocessed and interpreted image data represented the full spectrum of resistivity borehole image tools in water based mud, high...

Devonian Nomenclature in Edmonton Area, Alberta, Canada

Geological Staff, Imperial Oil Limited, Western Division

AAPG Bulletin

... recognized by the sudden increase in the resistivity (or impedance), and potential curves. Gamma-ray logs show a very sudden increase in intensity...

Geothermal Exploration in Northern Chile--Summary: Geothermal Energy

Alfredo Lahsen

AAPG Special Volumes

...-water reservoir has been based on electric methods only. Resistivity surveys show an extent of at least 30 km2 for the apparent resistivity of less than...

Hydrocarbon-Bearing Submarine Fan System of Cellino Formation, Central Italy

Raffaele Casnedi

AAPG Bulletin

... and correlation of electric logs (i.e., conventional resistivity methods, such as self-potential, resistivity and conductivity curves), microdevices as Microlog...

Computer-Aided Well Log Correlation (1)

J. H. FANG , H. C. CHEN , A. W. SHULTZ , and W. MAHMOUD

AAPG Bulletin

...] to f[6]) are extracted: f[1] = depth of the midpoint of the zone, f[2] = thickness, f[3] = spontaneous-potential (SP) amplitude, f[4] = resistivity...

Notches Dome Field Development

Mitch Meyer, John Starck

Wyoming Geological Association

..., R85W, on a previously unrecognized structural nose on the southwest flank of the dome apparent on an improved structure map (Figure 2). From 1988...

Stratigraphic Studies, Greater Oficina, Venezuela

D. A. Probst

AAPG Bulletin

... in this area are too thin, generally less than 30 feet, to permit measurement of thickness from resistivity curves. From core data it is known...

Recognition of Fault Bend Folding, Detachment and Decapitation in Wells, Seismic, and Cores from Norte Monagas, Eastern Venezuela, Chatellier, J-Y., Hernandez, P., Porras C., Olave, S., and Rueda, M. #

Search and Discovery.com

Vermilion Block 16 Field -- A Study of Irregular Gas Reservoir Performance Related to Non-Uniform Sand Deposition

W.L. Seal , J.A. Gilreath

GCAGS Transactions

... of the existence of multiple reservoirs within apparent blanket sands. The next step was a study utilizing dipmeters and other logs designed to break up...

Application of the Impulse Neutron-Neutron Method in the Oil Industry of Tataria

F. F. Kildayeva

Petroleum Geology: A Digest of Russian Literature

... be recognized by either the SP. gamma, or caliper-log methods. Dense, impermeable beds are recorded on the apparent resistivity logs by higher...

Electromagnetic Surveying as a Basic Tool in Defining Environmental Problems in the Oil Field Environment

Gary J. Newman

Tulsa Geological Society

... in well bores. Since it is an induction method, it does not require ground contact nor is it plagued by the other problems associated with resistivity...

Australian Exploration Geophysics--Current Performance and Future Prospects

K. G. McCracken , G. Buselli

AAPG Special Volumes

... the variation in apparent resistivity with frequency is sometimes characteristic. Detailed examination of the characteristics of the geophysical signal...

Abstracts: Use of Image Logs in Differentiating Point Bar and Tidal Bar Deposits in the Leismer Area: Implications for SAGD Reservoir Definition in the Athabasca Oilsands; #90173 (2015)

Howard Brekke, Andrew Couch

Search and Discovery.com

... indicate clean sand with muds less than 2 m thick (yellow shading); density porosities are greater than 30% (red shading); and deep resistivity values...

Rehabilitation and Development Tarakan Island

Kermit G. Rowley

Indonesian Petroleum Association

... that one year. Phase IV: 1931 – 1938: The Depression Years It is apparent that during this period the price of oil was depressed and markets limited, so...

TRIGONOMETRIC EQUATIONS AND GRAPHS FOR SOLVING PROBLEMS IN STRUCTURAL GEOLOGY

William H. Stalhuth

Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)

... with the logged vertical interval of the resistivity curves reduced to true stratigraphic thickness (“True Thickness Logs”). An equation for the reduction factor...

Mountain Home Field

Daniel J. Brennan

Bulletin of South Texas Geological Society

... have several zones of apparent low resistivity (higher than usual porosity) beneath the apparent GR top. In such cases, as in the Miller Operating #1...

Sunny Slope and Groff Fields

R. G. Ash

Kansas Geological Society

... placement of the sand is discussed later. Within the sandstone body, a certain amount of lensing is apparent. An attempt has been made to subdivide...

Barrel Springs Field, Prowers County, Colorado

William F. von Drehle

Rocky Mountain Association of Geologists

...) above the valley floor. These sandstones are interpreted to be channel margin deposits and are apparent on the extremities of cross-sections...

Log Map, New Type of Subsurface Map

T. H. Bower

AAPG Bulletin

... survey. In order to conserve space laterally the resistivity and self potential curves of the electrical profile are drawn as close together...

Introduction: Chapter 1

Daniel A. Busch

AAPG Special Volumes

... numerous sedimentary basins. Thus, it should be apparent to the reader that the principles and methods discussed have application to petroleum exploration...

Abstract: Application of a Tomographic Velocity Model to the Prestack Depth Migration of a Buried Valley; #90172 (2014)

Oluwafemi Ogunsuyi, Douglas R. Schmitt

Search and Discovery.com

... of clay, till, silt, sand and gravel of varying degree in composition and configuration. The often apparent contrasts in the physical properties...

Porosity Partitioning and Permeability Quantification in Vuggy Carbonates Using Wireline Logs, Permian Basin, West Texas

Chunming Xu, Duffy Russell, Jonas Gournay, Pete Richter

West Texas Geological Society

... and fieldwide completion strategies. Brie, A., Johnson, D.L., and Nurmi R., 1985, Effect of spherical pores on sonic and resistivity measurements...

Factors Controlling Simpson Group Production in Central Oklahoma: Part I

Paul Winston Smith

Oklahoma City Geological Society

... green sandstone which displays very low resistivity even when oil saturated. The Tulip Creek shale varies in thickness in the area from about 20 feet...

Potential Basin-Centered Gas Accumulation in Cretaceous Trinidad Sandstone, Raton Basin, Colorado

Peter R. Rose, John R. Everett, Ira S. Merin

AAPG Special Volumes

... that contain examples of such accumulations, several important differences are also apparent: (1) The accumulations occur at widely varying depths...