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The AAPG/Datapages Combined Publications Database

Showing 16,717 Results. Searched 188,958 documents.

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Estimating Pore and Cement Volumes in Thin Section: METHOD PAPER

Robert B. Halley

Journal of Sedimentary Research (SEPM)

... and cement volumes from thin sections are inaccurate, often by more than 100 percent, even though they may be surprisingly precise (reproducibility ± 3...

1978

Reservoir Properties and Model of Structure of the Vendian-Cambrian Pay Zone, Bysakhtakh Field (East Siberia)

V. G. Kuznetsov, V. V. Bakina, T. V. Bitkova

Petroleum Geology: A Digest of Russian Literature

.... The lower part of each cycle consists of alternating argillites, clayey dolomites, fine-grained dolomites, and stromatolites. Up to 5 percent detrital...

1993

A Comparison of Two Methods for Converting Grain Counts to Weight Percent Composition

R. C. Kellagher, Francis J. Flanagan

Journal of Sedimentary Research (SEPM)

...A Comparison of Two Methods for Converting Grain Counts to Weight Percent Composition R. C. Kellagher, Francis J. Flanagan 1956 Vol. 26 No. 3...

1956

Reservoirs of Mesozoic Sediments of Central Karakum Oil-Gas Region

S. A. Amanov

Petroleum Geology: A Digest of Russian Literature

... and consist of sands, sandstone, and siltstone. Gross pay is 28-97 m, and net pay is 14-31 m. Porosity is 17-33 percent, and permeability is 0.043-1.48 md...

1992

A Future with Fewer Carbon Emissions; #120032 (2009)

Rod Nelson

Search and Discovery.com

.... -------------------------------------------------------------------------------------Currently coal, oil, and gas provide 83 percent of OECD energy supply. Oil supplies 41 percent, gas 22 percent...

2009

STRIPPABLE COAL DEPOSITS, EASTERN MONTANA

ROBERT E. MATSON

Montana Geological Society

... is 6,520 Btu/lb. At Colstrip (No. 14, Figure 2) The Western Energy Company Mine, the moisture is about 23.1 percent and heating value 8,600 Btu/lb...

1975

ABSTRACT: Geological Processes that Control Lateral and Vertical Variability in Coal Seam Moisture Contents „ Latrobe Valley (Gippsland Basin) Australia

Guy R. Holdgate

The Society for Organic Petrology (TSOP)

... mined deposits at Yallourn, Morwell and Loy Yang. These new fields have coals with moisture contents over 10-20 percent lower than the currently mined coal...

2003

Main Hydrocarbon Fields OP Sub-Salt Paleozoic Complex of North Caspian Depression

G. Ye.-A. Ayzenshtadt

Petroleum Geology: A Digest of Russian Literature

.... The pores range in size from 0.05 mm to small cavities. Average porosity is not more than 5.5 percent. Formation pressure at depth of 4600 m is 83 MPa...

1999

ABSTRACT: Variations in Coal Maceral Chemistry and Mineral Matter Characteristics with Rank Advance in the German Creek Coal Measures of the Bowen Basin, Australia, using Electron Microprobe and Other Techniques

Colin R. Ward, Zhongsheng Li, Lila W. Gurba

The Society for Organic Petrology (TSOP)

...flectance (Rvmax) in the seams studied increases from less than 0.4 percent in the western part of the basin to over 3.5 percent in the east, apparently...

2003

The Effects of Diagenesis on Reservoir Properties in the Lobo Sandstones, Webb County, Texas

Steven C. Alexander , Thomas T. Tieh , Robert R. Berg

GCAGS Transactions

... the sandstones range from 6-28 percent and 0.01-10.0 md, respectively. Porosity and permeability are dependent on depositional facies and diagenetic...

1985

Chronostratigraphic Hydrocarbon Plays and Depositional Styles in the Northern Gulf of Mexico

Steven Seni , Jeff Brooke , David Marin , Eric Kazanis

GCAGS Transactions

.... Forty-three percent of the original recoverable oil is concentrated in two chronozones--the lower Pleistocene Lenticulina 1 to Buliminella 1 (22.8...

1995

Time of Emplacement of Pinto Diorite, Little Belt Mountains, Montana

Lee A. Woodward

Earth Science Bulletin (WGA)

... percent greenish brown, sericitized and chloritized biotite, 60 percent calcic oligoclase, and 15 percent chlorite that appears to be derived mostly from...

1970

Abstract: The Importance of Oil as a Source of Energy

Antonio Garcia Rojas

GCAGS Transactions

... their share from 4.5 percent in 1913 to about 38 percent at present. The ratio of petroleum resources to the energy requirements of a country varies within...

1958

The Character of Deep Lime Crude Oils of East Texas

Paul B. Crawford

East Texas Geological Society

... gas drive is presented. It is indicated that shrinkages near 60 to 80 percent may result in small stock tank oil recoveries in some cases. 1. Muskat...

1954

Notes on Compaction

George V. Chilingar

CSPG Bulletin

..., the water content in Cambrian clay and kaolin decreased from 6-7 to 3-4 percent. At a pressure of 3000 kg/cm2, bentonite still contained more than...

1961

Section Three: Importance of Diapiric Structures to Hydrocarbon Production

New Orleans Geological Society

... in Figure 7A. Salt domes comprise 17.8 percent of the sample and "circular and elongate domes" (probably deeply buried, deep-seated-intrusive salt...

1995

Abstract: Hydrocarbon Potential of the Gulf Coast Basin

William L. Fisher

Houston Geological Society Bulletin

.... Of the remaining resource base in the Basin, 20 percent exists as currently proven reserves, 45 percent will come from future discoveries, and 35 percent...

1988

ABSTRACT: Coalbed Methane Development in the Virginia Portion of the Central Appalachian Basin

Jack E. Nolde and David B. Spears

The Society for Organic Petrology (TSOP)

... portion of the central Appalachian basin is only 7 percent of the basin area, yet contains nearly 95 percent of the basin's coalbed methane wells...

1997

Relationship of Porosity Formation and Preservation to Sandstone Consolidation History--Gulf Coast Lower Tertiary Frio Formation

R. G. Loucks, D. G. Bebout, W. E. Galloway

AAPG Special Volumes

... porosity is reduced from 40 percent to approximately 25 percent. Moderate subsurface cementation stage (4,000 to 8,000 feet ±) consists of general...

1979

Abstract: Diagenetic Clays in a Tight Sandstone of the Olmos Formation, Maverick Basin, Texas

Necip Guven, Alonzo D. Jacka

GCAGS Transactions

... comprise 80 to 88 percent of total grains. Plagioclase (albite) ranges from 5 to 10 percent in abundance. Volcanic rock fragments, consisting mostly of tiny...

1981

ABSTRACT: Thermal maturity trends in the Mowry Shale in the Bighorn Basin, Wyoming and Montana

Thomas M. Finn, Mark J. Pawlewicz

The Society for Organic Petrology (TSOP)

..., with total organic carbon content ranging up to about 4.0 weight percent. New drilling and well completion technologies make the Mowry a potential shale gas...

2010

Abstract: An Evaluation of Coalbed Methane Production Trends in Wyoming’s Powder River Basin: A Tool for Resource Management

Ronald C. Surdam, Zunsheng Jiao, Keith Clarey, Rodney H. De Bruin, Ramsey Bentley, Jim Stafford, Allory Deiss, Meg Ewald

Wyoming Geological Association

... than two have produced 4.6 percent of the gas and 38 percent of the water in the PRB to date. Water/gas ratios for the first 10 years of CBM...

2010

Appendices

George B. Asquith, Charles R. Gibson

AAPG Special Volumes

...) crossplot chart for determining percent water-cut (65° API gravity oil). Chart after Fertl and Vercellino (1978). Appendix 3. Irreducible water saturation...

1982

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