Effect of Fractures on Reserve Calculations as Determined by Petrology: Birthright Field, Hopkins County, Texas

Hugh J. Mitchell-Tapping

GCAGS Transactions

... conditions and sizes of the coated grains. Anhydrite and sparry calcite has subsequently filled many of the pores, especially below the oil-water...

Role and Place of Geophysical Methods in Direct Exploration

A. I. Boyko, L. Ye. Fil’shtinskiy

Petroleum Geology: A Digest of Russian Literature

...), and coefficient of attenuation ∝(c). 1 - Gypsum-anhydrite reflecting horizon; 2-reflecting horizon at base of Mesozoic; 3-boundary identified...

Fullerton Pool, Andrews County, Texas: GEOLOGICAL NOTES

J. H. Moore

AAPG Bulletin

... anhydrite overlies the Salado salt, which is approximately 1,200 feet thick. Under the salt is 1,500 feet of anhydrite, sand, and dolomite...

Regularities in the Distribution of Oil and Gas Fields Enriched in H2S

V. S. Goncharov, N. K. Smirnova, V. G. Khel’kvist

Petroleum Geology: A Digest of Russian Literature

.... In the north of the basin the unit consists of anhydrite, and in the central and south parts it is anhydrite and salt. See Fig. 1. The salt...

Gas Prospects of the Supra-Salt Sediments of the Uchadzhin Zone of Gas Accumulation of East Turkmenia

G. I. Amurskiy, N. N. Solov’yev, I. P. Zhabrev, V. V. Smaragdov, V. A. Talday

Petroleum Geology: A Digest of Russian Literature

... accumulation is associated with the Uchadzhin high in the central part of the Amu-Dar’ya synclize, where the salt-anhydrite unit is about 800 m thick...

Salt-Dolomite Intergrowths: GEOLOGICAL NOTES

I. T. Schwade

AAPG Bulletin

... with anhydrite and shale, about 250 feet thick, commencing about 300 feet below the top of the Glorieta sandstone. The cores which were cut to investigate...

Main Characteristics of Ancient and Modern Salt Accumulation in the North Caspian Depression

I. N. Komissarova

Petroleum Geology: A Digest of Russian Literature

... accompanied by anhydrite deposition. This was due to a drop in salinity of the basin as a result of of fresher water from the Cis-Ural foredeep which...

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

... recrystallization and relict stromatolites. At the top of the cycles are anhydrite-bearing micro-crystalline dolomites. The anhydrite occurs as aggregates up...

Modified Gypsum/anhydrite Stain: METHOD PAPER

Arthur W. Hounslow

Journal of Sedimentary Research (SEPM)

...Modified Gypsum/anhydrite Stain: METHOD PAPER Arthur W. Hounslow 1979 Vol. 49 No. 2. (June), A yellow stain or precipitate forms when a partially...

Relationships of Modern Gypsum Nodules in Sabkhas of Loess to Compositions of Brines and Sediments in Northern Egypt

Yehia A. Ali , Ian West

Journal of Sedimentary Research (SEPM)

... of coexisting brine, the sabkha, Trucial Coast, Arabian Gulf: Jour. Sed. Petrology, v. 39, p. 70-89. BUTLER, G. P., 1970a, Secondary anhydrite from a sabkha...

Cottonwood Creek Field, Washakie County, Wyoming, Carbonate Stratigraphic Trap

John J. Pedry

AAPG Bulletin

... to red shale and anhydrite provides the trap for oil accumulation. Development of porosity in the dolomite at Cottonwood Creek may be due to a reef...

Deeper Oil Possibilities of South Arkansas and North Louisiana: GEOLOGICAL NOTES

John J. Chapman

AAPG Bulletin

... the Eagle Mills Redbeds, probably Permian in age, underlie the Louann Salt and Werner Anhydrite and occupy an asymmetrical trough trending northwest...

Age of Pre-Smackover Formations, North Louisiana and South Arkansas: GEOLOGICAL NOTES

William F. Bishop

AAPG Bulletin

..., and anhydrite are present. Intrusive diabase dikes and sills commonly are associated with Eagle Mills sedimentary rocks. An outstanding example...

Oil Occurrence and Lower Cretaceous Carbonate-Evaporite Cyclothems in South Florida: GEOLOGICAL NOTES

George O. Winston

AAPG Bulletin

... 3,500 ft (1,000 m) of the Lower Cretaceous in south Florida were deposited in cycles. The cyclothems, composed of carbonate and anhydrite, range...

Abstract: Characterizing Thermochemical Sulphate Reduction: Towards Making Predictions of Sour Gas in Sedimentary Basins; #90063 (2007)

Search and Discovery.com

Abstract: Sedimentology and Reservoir Potential of the Upper Devonian Duperow Formation, Southwestern Manitoba; #90187 (2014)

Kerry B. Bates and Nancy Chow

Search and Discovery.com

...) interlaminated dolostone and anhydrite; (K) massive anhydrite; and (L) patterned dolostone. Cyclicity of the Duperow Formation is on the scale...

Salina Group Lithofacies in the Michigan Basin: Development of an Improved Depositional Model From Core Analysis, #51435 (2017).

Peter J. Voice, William B. Harrison III, Andrew H. Caruthers

Search and Discovery.com

... with interbedded anhydrite and dolomite are found in the C-, E-, and G-Units. In the southernmost Upper Peninsula, the Salina Group undergoes lateral facies...

The Study of H2S Origin in Natural Gas Reservoirs in South Iran

Search and Discovery.com

The Jurassic of the Arabian Gulf Basin: Facies, Depositional Setting and Hydrocarbon Habitat

A. S. Alsharhan, K. Magara

CSPG Special Publications

... anhydrite effectively provides regional seals for the porous, grain-rich Middle and Late Jurassic reservoirs in the oilfields of Saudi Arabia, Bahrain...

Variations in Lithofacies in Upper Ordovician Herald and Yeoman Formations (Red River), North Dakota and Southeastern Saskatchewan

F. M. Haidl, Mark W. Longman, Brian R. Pratt, Lawrence M. Bernstein

CSPG Special Publications

... to nodular anhydrite reflecting a increasingly hypersaline shallow subtidal environment. The Coronach Member has burrowed skeletal wackestones...

THE SPEARFISH FORMATION IN WESTERN NORTH DAKOTA

WALLACE G. DOW

Williston Basin Symposium

... in some areas. Thin beds of pink and white anhydrite are present locally. Distribution and thickness trends of this unit in North Dakota...

DEPOSITIONAL CYCLES IN THE MISSISSIPPIAN MISSION CANYON LIMESTONE AND CHARLES FORMATION, WILLISTON BASIN, NORTH DAKOTA

DOUGLAS L. WATERS, WILLIAM J. SANDO

Williston Basin Symposium

... secondary dolomite and anhydrite." Edie (1958) also made several perspicacious interpretations of the rock types he...

Quantification of Carbonate Ramp Sedimentation and Progradation Rates for the Late Holocene Abu Dhabi Shoreline—Discussion

Anthony Kirkham, Graham Evans

Journal of Sedimentary Research (SEPM)

..., aeolian deflation and anhydrite distribution of the Holocene, Abu Dhabi: GeoArabia, v. 2, p. 403–416. Kirkham, A., 1998, A Quaternary proximal foreland...

Permian Facies Sequences and Evaporite Depositional Styles, Texas Panhandle

C. Robertson Handford, Randy L. Bassett

Special Publications of SEPM

... by Leonardian time, thick successions of dolomites, anhydrite, halite, and red terrigenous clastics accumulated in the wide shelf and continental deserts...

Petrologic evidence for the diagenesis of the Donovan Sand, Citronelle Field, Alabama, and implications for CO2 storage and enhanced oil recovery

George Case, Amy Weislogel, and Keith Coffindaffer

Environmental Geosciences (DEG)

... and anhydrite concretion formation; 4) hydrocarbon charge; and 5) pyrobitumen development. Primary porosity is dominant, but substantial secondary...