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The AAPG/Datapages Combined Publications Database

Showing 6,819 Results. Searched 195,448 documents.

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Subsurface Pressures and Petroleum Systems: Pressure Relationships to the Generation, Migration and Accumulation of Hydrocarbons: Short Course 2

Fred F. Meissner

Indonesian Petroleum Association

... measurement, processes causing and maintaining abnormal pressure, prediction of abnormal pressures, physics of fluid (water and hydrocarbon) movement...

1997

Identification of High-Resolution Features on Formation Pressure Gradients: A Case Study in a Heavy Oil Accumulation of the Campos Basin, Offshore Brazil, #40859 (2011)

Paulo C. Artur, Carlos F. Beneduzi, Carlos A. De Andre, Silas A. Roberto

Search and Discovery.com

.... The ratio of static pressures to their true vertical depths plotted against the vertical depth helps to distinguish fluid pressure gradients, thus making...

2012

Reservoir vs. Seal Pressure Gradients: Calculations and Pitfalls; #41298 (2014)

Selim Simon Shaker

Search and Discovery.com

...Reservoir vs. Seal Pressure Gradients: Calculations and Pitfalls; #41298 (2014) Selim Simon Shaker Reservoir vs. Seal Pressure Gradients...

2014

Capillary Pressure: Part 5. Laboratory Methods

Charles L. Vavra, John G. Kaldi, Robert M. Sneider

AAPG Special Volumes

... recovery. Evaluating capillary pressure of potential reservoir and seal rocks is important because capillarity controls the static distribution of fluids...

1992

The practice of graphical fluid-gradient interpretations of formation tester pressure data

Andrew Chen

AAPG Bulletin

... of (), the middle (), and the lower 0.532 g/cc ().Most pressure data that exhibit hydrocarbon compositional gradients can be interpreted with a lower order...

2014

Smectite-Illite Transformation--Role in Generating and Maintaining Geopressure: ABSTRACT

W. R. Foster, H. C. Custard

AAPG Bulletin

... are associated with geopressure, gradual reaction with depth associated with near hydro-static fluid pressure gradients. Sediments compact over intervals where...

1980

Subsurface Geomechanics, Fracture Breakdown Pressures, and Fracture-tunnels in the Midwest United States, #80570 (2016).

J.R. Sminchak, Glenn Larsen, James E. Hicks

Search and Discovery.com

..., instantaneous shut-in pressures averaged 0.85 psi/ft gradient. Data from shale gas wells had higher fracture shut-in pressure gradients due to hoop...

2016

Gulf of Mexico Subsalt Deformation Zones: Weak Formation Integrity Rather than Anomalous High Pressure Zones

James C. Niemann

GCAGS Transactions

... deformation zones underneath salt are not anomalously high pressure zones, but rather, low formation integrity zones. Pore pressure gradients were...

1997

Subsurface formation pressure gradient vs. slope: Perception and pitfalls

Selim S. Shaker

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Moreover, equating the natural pressure measurements using the wireline tools to the man-made variable mud weight pressure gradients can be confusing...

2023

Can Dispersive Pressure Cause Inverse Grading in Grain Flows?: REPLY

Francois Legros

Journal of Sedimentary Research (SEPM)

... in such a way that dispersive pressure at every level tends to balance static pressure, and so cannot promote the upward segregation of large particles...

2003

Coal reservoir saturation: Impact of temperature and pressure

Amanda M. M. Bustin, R. Marc Bustin

AAPG Bulletin

... reasonable geothermal and pressure gradients, our data indicate that the sorption capacity will generally decrease with uplift and associated exhumation...

2008

Overpressure and Hydrocarbon Accumulations in Tertiary Strata, Gulf Coast of Louisiana; #41000 (2012)

Philip H. Nelson

Search and Discovery.com

... Geologists in San Antonio, Texas, titled: "Overpressure, stress gradients, and hydrocarbon accumulations in Tertiary strata, Gulf Coast of Louisiana...

2012

Production and Pressure Characteristics of Gas Reservoirs, Veracruz Basin, Mexico

Holtz, Mark H., Garcia, Javier, Sakurai, Shinichi, Wawrzyniec, Timothy F., Jennette, David C., Bolanos, Juan Jose

GCAGS Transactions

.... Investigations determined that gas reservoirs in the Veracruz Basin are initially overpressured. This overpressure is measurable when pressure gradients...

2002

Applications of Pressure Analysis and Hydrodynamics to Petroleum Exploration in Indonesia

P. J. Cockroft, G. A. Edwards, R. S. K. Phoa, H. W. Reid

Indonesian Petroleum Association

... hydrocarbon accumulations and aid exploration for new fields. Pressure gradients, capillary pressure, relative permeabilities and water chemistry under...

1987

Evaluating Reservoir Compartmentalization by Correlating Laboratory and Field Data

Michael J. Heymans

Rocky Mountain Association of Geologists

.... The difference in the hydrocarbon and water gradients is the buoyancy pressure, Pc. The largest buoyancy pressure occurs at the maximum height, h...

1998

Abnormal Formation Pressures: Recognition, Distribution, and Implications for Geophysical Prospecting, Brazoria County, Texas

Edward T. Flanigan

GCAGS Transactions

... to interpret distribution of subsurface pressures. Three pressure regimes are defined in terms of vertical pressure gradients: normal pressure (0.465...

1981

The Origins of Abnormal Fluid Pressures

Norman E. Smith, H. George Thomas

Houston Geological Society

... if changes in overburden pressure result from vertical compression (static load), horizontal compression (dynamic load), or uplift. Abnormal pressures may also...

1971

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