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The AAPG/Datapages Combined Publications Database
Showing 37,658 Results. Searched 200,357 documents.
Systematic Variations in Formation Pressures in the Mesozoic-Cenozoic Sediments of Eastern Cis-Caucasus
A. G. Durmish’yan, V. D. Aslanov, T. R. Rakhmanov, B. L. Aleksandrov, F. G. Sharafutdinov
Petroleum Geology: A Digest of Russian Literature
... of the Eastern Cis-Caucasus. Zones with formation pressures (gradients, kgs/cm2/m in parentheses): I-anomalously low and normal (up to 0.10), II-moderate...
1977
Stress Evolution of Maari Field, NZ: Implications for Fault/Fracture Integrity, Stress Prediction, Infill Drilling, and Borehole Integrity; #20442 (2018)
Roderick W. Van Koughnet, David A. Castillo, Vivek Paranjpe
Search and Discovery.com
... and SHmax decreases about 20% of the pore pressure change. For localized increases in pore pressure above hydrostatic due to water injection...
2018
Solubility of Methane in Water at Elevated Temperatures and Pressures: GEOLOGIC NOTES
L. C. Bonham
AAPG Bulletin
.... In that area, changes in both the temperature and pressure gradients are associated with changes in the lithology of the sediments with depth...
1978
Abstract: Paleo Overpressure in the Delaware Basin Determined from DST, Resistivity and Mud Logs
Mary Van Der Loop
Houston Geological Society Bulletin
... to pressure gradient data to define overpressured areas against a Permian Basin normal hydrostatic gradient of .48 psi/ft. AIFE Drill stem test data is scant...
2019
Paleo Overpressure in the Delaware Basin determined from DST, Resistivity and Mud Logs
Search and Discovery.com
N/A
Paleo Overpressure in the Delaware Basin determined from DST, Resistivity and Mud Logs
Search and Discovery.com
N/A
Frontier Exploration Basin Modeling Technology Tested in the Mature Arkoma Basin, Oklahoma, USA: Abstract
Indu D. Meshri, S. S. Foland, S. L. Bolton, J. M. Walker
Tulsa Geological Society
..., the modeled pressures in the Atokan shales reached 7500 psi (500 atm) above normal hydrostatic pressures, creating effective pressure seals...
1996
Regional Map of the 0.70 psi/ft Pressure Gradient and Development of the Regional Geopressure-Gradient Model for the Onshore and Offshore Gulf of Mexico Basin, USA
Lauri A. Burke, Scott A. Kinney, Russell F. Dubiel, Janet K. Pitman
GCAGS Journal
... subsurface of the Gulf Coast, pressure gradients generally follow a hydrostatic pressure-gradient trend (Fig. 2). A normal or hydrostatic gradient represents...
2012
Abstract: Mesogenetic Porosity Alteration in Carbonate Sediments, by Volkmar Schmidt; #90968 (1977).
Search and Discovery.com
1977
Pressure Index (PI): A Novel Practical Method for Evaluating Pressure in Offshore Malaysia
Yudiyoko Ega Sugiharto, Gamal R. Gaafar, Isham F. Ishak, Benard Ralphie, Muhammad Banuri
Indonesian Petroleum Association
.... Howes (1998) mentions that, as the rule of thumb, normal hydrostatic gradients range between 0.433 psi/ft and 0.465 psi/ft. As best practices definition...
2020
Anomalous Pressures in the Deep Michigan Basin
Jean M. Bahr, Gerilynn R. Moline, and Gregory C. Nadon
AAPG Special Volumes
... in the regional discharge area. Vertical gradients between the Glenwood and the St. Peter and between the St. Peter and the Prairie du Chien Group would...
1994
Overpressure in Shale Gas When Geochemistry and Engineering Data Meet and Agree; #40767 (2011)
J-Y. Chatellier, Kevin Ferworn, Nabila Lazreg Larsen, Steve Ko, Pawel Flek, Marianne Molgat, and Irene Anderson
Search and Discovery.com
... Gradients Normal Hydrostatic Gradient 10 kpa/m Area 1 Area 2 Area 3 Frac data Normal Reservoir Pressure Gradient 10 kpa/m Area 4 Area 4 Normal...
2011
Distribution and Generation of the Overpressure System, Eastern Delaware Basin, Western Texas and Southern New Mexico: DISCUSSION AND REPLY
Richard E. Swarbrick
AAPG Bulletin
... for overpressure generation in sedimentary basins. SUBSURFACE PRESSURE DATA Luo et al. (1994, p. 1390) used the initial hydrostatic pressure (IHP...
1995
Rapid Methods for Assessing Formation Pressures: An Example from the Lower Cretaceous of the Greater Green River Basin
R.A. Levey
Rocky Mountain Association of Geologists
..., the hydrostatic gradient is 0.465 psilft. Formation pressure gradients above the regional hydrostatic gradient are termed overpressured (above normal pressure...
1992
Subsurface Pressure and Temperature Distributions: In Sacramento Basin, California
M. S. Lico, Y. K. Kharaka
Pacific Section of AAPG
... are hydrostatic to the top of the geopressured zone (pressure gradient >9.8 kPa/m). When the geopressured zone is encountered, pressure gradients become much higher...
1983
Geology and Diagenetic History of Overpressured Sandstone Reservoirs in the Venture Gas Field, Offshore Nova Scotia, Canada [Abstract]
Noguera, V.H., Jansa, L.F.
CSPG Bulletin
..., Jansa, L.F. 1990 174 174 Vol. 38 (1990) No. 1. (March) Overpressured formations with pressure gradients of nearly twice the normal hydrostatic...
1990
Mechanical Versus Thermal Cause of Abnormally High Pore Pressures in Shales: GEOLOGIC NOTES
Richard E. Chapman
AAPG Bulletin
... geothermal gradients of 26°C/km and 36°C/km and normal hydrostatic pressure gradient. End_Page 2181------------------------------ the rate...
1980
Estimation of Formation Pressures from Log-Derived Shale Properties(*)
C. E. Hottman , R. K. Johnson
GCAGS Transactions
... formations contain fluids which are under hydrostatic pressure. These formations are said to be normally pressured or to have a normal pressure...
1965
Geopressures and Secondary Porosity in the Deep Jurassic of Mississippi
Calvin A. Parker
GCAGS Transactions
... no judgment whether a pressure is "normal" or "abnormal." Perhaps in a volumetric sense overpressures are more "normal" than hydrostatic pressures, considering...
1974
Geopressures and Hydrodynamics in the Gulf Basin Tertiary
Calvin A. Parker
New Orleans Geological Society
...). This plot reveals pressure gradients exceeding 0.9 psi/ft. and shows disruption of hydrostatic equilibrium which results in unequal flow potential...
1991
Pore Pressure Prediction Geology and Modeling Assessment
Selim S. Shaker
GCAGS Transactions
... pore pressure prediction (PPP) models. Sediment is transported from land to the marine environment as unconsolidated flow- debris. Normal hydrostatic...
2024
Geology and Mechanics of the Basin-Centered Gas Accumulation, Piceance Basin, Colorado, by Stephen Cumella and Jay Scheevel
Search and Discovery.com
N/A
Geology and Mechanics of the Basin-Centered Gas Accumulation, Piceance Basin, Colorado, by Stephen Cumella and Jay Scheevel; #90042 (2005)
Search and Discovery.com
2005
Estimation of Formation Pressures from Log-Derived Shale Properties: ABSTRACT
C. E. Hottman, R. K. Johnson
AAPG Bulletin
...) Sedimentary rocks during burial maintain hydrostatic fluid pressure within their pore space if the fluids within the sediment can escape as the sediment...
1965
Sand Bodies Connectivity Analysis Utilizing Measured Pore Pressure in Normal Pressure, Offshore Bohai Bay Basin, China, #42106 (2017).
Qian Geng, Xu Changgui, Niu Chengmin, Yang Bo, Yang Haifeng, Jia Zhen,
Search and Discovery.com
...Sand Bodies Connectivity Analysis Utilizing Measured Pore Pressure in Normal Pressure, Offshore Bohai Bay Basin, China, #42106 (2017). Qian Geng, Xu...
2017