Pervasive dolomitization with subsequent hydrothermal alteration in the Clarke Lake gas field, Middle Devonian Slave Point Formation, British Columbia, Canada

Jeff Lonnee, Hans G. Machel

AAPG Bulletin

... low.Facies zone IVf is representative of the proximal forereef environment. These rocks are light- to dark-brown floatstones to rudstones that contain large...

Correction of invasion effects on well logs in Camisea gas reservoirs, Peru, with the construction of static and dynamic multilayer petrophysical models

Ankur Gandhi, Carlos Torres-Verdin, Ben Voss, Federico Seminario Gros, Johnny Gabulle

AAPG Bulletin

... petrophysical properties of invaded rock formations via the CSF concept. We show that invasion effects on resistivity and nuclear logs are primarily governed...

Marine Triassic Stratigraphy in Eastern Great Basin

David L. Clark

AAPG Bulletin

... limestone zone, (3) an upper shaly limestone, and (4) an upper thick-bedded limestone. Thicknesses range from 700 to 3,000 feet. Redbeds are present only...

Paleomagnetic results from Mayreau, West Indies, rule out large tectonic rotations since the Eocene

Speed, R.G., Burmester, R.F. and Beck, M.E.

Geological Society of Trinidad & Tobago

... and to other terranes in the CaribbeanSouth America plate boundary zone. We extracted primary and early deuteric magnetic directions and site-means...

Devonian and Mississippian Systems of Colorado

David P. Rothrock

Rocky Mountain Association of Geologists

... is reduced to zero westward (fig. 3 ) . An extensive, but thin unit of unfossiliferous limestone with a basal sandy zone extends northward toward Wyoming...

Origin of Secondary Porosity and Cement Distribution in a Sandstone/Shale Sequence from the Frio Formation (Oligocene): Part 2. Aspects of Porosity Modification

G. K. Moncure, R. W. Lahann, R. M. Siebert

AAPG Special Volumes

... shale zone, as discussed previously, invaded the narrow margin of sandstone at the contact. This chlorite formation resulted from expulsion of chlorite...

Evaporite Formations with Petroleum Reservoirs in Devonian and Mississippian of Alberta, Saskatchewan, and North Dakota

J. G. C. M. Fuller , J. W. Porter

AAPG Bulletin

..., illustrated by Devonian and Mississippian examples. (1) Desert-zone coastal salt flats (sabkhas) have the peculiarity of transforming calcareous...

Jackson Group of Formations in Texas with Notes on Frio and Vicksburg

Alva Christine Ellisor

AAPG Bulletin

..., in which they divided the Jackson formation into three major zones, the Textularia hockleyensis zone, Textularia dibollensis zone, the Bulimina jacksonensis...

Around The Society: A Primer on “Serpentine Plugs” in South Texas

Kenneth A. Simmons

Bulletin of South Texas Geological Society

... Zone, and extending southeasterly from the outcrops of the early Taylor and Anacacho formations, down the Gulf coastward regional dip a distance...

The Tectonics of Ustiurt

N. V. Nevolin

Petroleum Geology: A Digest of Russian Literature

... with proximity to the surface in Tuarkyr of Paleozoic sediments invaded by basic intrusives. The magnetic field of Ustiurt, with the exception of the belt...

Evidence for Low Free Gas Saturations in Water-Bearing Bright Spot Sands

H. J. Ritch, J. T. Smith

Pacific Section of AAPG

... dissolve free gas in the invaded zone. Thus, when free gas was present, the recovered fluid would contain more gas than could be accounted...

Late Cenomanian-Early Turonian Shelf Ramp, Niger, West Africa: Chapter 12

A. F. Pascal, B. J. Mathey, K. Alzouma, J. Lang, C. Meister

AAPG Special Volumes

... to the great Tethyan transgression that partially invaded West Africa in the early Late Cretaceous. This transgression moved from north to south and southwest...

Geology of the Colorado Basin

J. P. H. Kaasschieter

Tulsa Geological Society

...'s and Y.P.F.'s seismic investigations showed the presence of a western "border" zone of the Basin in which the basement surface gently dips eastward...

Lower Cretaceous Stratigraphy of Wyoming

John D. Haun, James A. Barlow Jr.

Wyoming Geological Association

... into the Early Cretaceous. Near the end of the Early Cretaceous the sea again invaded the Wyoming area from the north. The age, correlation...

Development Strategy in the Bzz Field and the Importance of Detailed Depositional Model Studies in the Reservoir Characterization of Talang Akar Channel Sandstones

Chandra Suria

Indonesian Petroleum Association

... in the BZZ-70B zone. At this stage, field reserves were estimated to be 8 MMBO, and a development program was initiated. It was not until two years later...

Low-Resistive Sandstone Reservoirs in the Attaka Field

Yoseph Joko Partono

Indonesian Petroleum Association

... to well compacted; the lower part, within the crestal fault block, the reservoirs are abnormally high pressured. The top of the over-pressured zone...

Structure of Caddo Field, Caddo Parish, Louisiana

Corbin D. Fletcher

AAPG Special Volumes

... known that the Lower Cretaceous sea invaded southern Arkansas, covering all of Louisiana as well, and that the shore line lay near the western edge...

Archeological Research in Yellowstone National Park

Gary A. Wright

Wyoming Geological Association

... of maximum warmth which is bracketed by dates of 7300 to 1565 B.P. (calibrated, Zone B2) at Blacktail Pond. Zone B2 is dominated by Pseudotsuga pollen...

The Application of Dielectric Logs to the Recognition of Oil Versus Water-Wet Reservoirs and in the Determination of Relative Permeabilities

Ivan D. Pinzon, G. B. Asquith

West Texas Geological Society

... profiles in invaded water and oil sands for linear flow: Transactions 4th Annual Logging Symposium, Society of Professional Well Log Analysts, p. 1–8...

The Application of Dielectric Logs to the Recognition of Oil Versus Water-Wet Reservoirs and in the Determination of Relative Permeabilities

Ivan D. Pinzon, G. B. Asquith

West Texas Geological Society

... resistivity profiles in invaded water and oil sands for linear flow: Transactions 4th Annual Logging Symposium, Society of Professional Well Log Analysts, p. 1...

Origin and Development of Quaternary Terrigenous Inner Shelf Sequences, Southwest Florida

Richard A. Davis, Jr., Jonathan M. Klay

GCAGS Transactions

... be recognized by an oxidized zone which may be over 3 ft (1 m) thick and which is interpreted as a soil. This surface ranges from -16 to -23 ft (-5 to -7 m...

The Significant Impact of Intraformational Seal to Hydrocarbon Accumulation of Mixed Carbonate - Siliciclastic Sequences In Oligo-Miocene Interval, North Madura Platform, East Java Basin

Aditya Kusuma Wijaya, M Nauvall Juliansyah

Indonesian Petroleum Association

... understanding on intrafomational seal, both micro and macro characteristics, can be highly beneficial to identify potential overlooked zone as well...

A Band of Extraordinary Calcareous Concretions in the Upper Lias of Yorkshire, England

A. Hallam

Journal of Sedimentary Research (SEPM)

.... The upper and lower margins of the larger concretion are marked by a zone rich in finegrained pyrite (slightly lighter areas in fig. 3, locations e) where...

Optimizing Electrical Borehole Images to Predict Porosity in New Discovery Limestone Minahaki Formation Pia-001 Exploration Well Matindok Block Central Sulawesi

Bagus Guspudin, Tika Roswina Pratiwi, Agung Budianto, Angga Direzza, Leonora Ludwina Lilasari

Indonesian Petroleum Association

... and the image total porosity were computed. The image porosity calculation (equation 1) was performed by using modified Archie equation at the invaded zone...

AAPG 41st Annual Eastern Section Meeting, - Abstracts, #90154 (2011).

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