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The AAPG/Datapages Combined Publications Database
Showing 220 Results. Searched 195,364 documents.
Aquathermal Pressuring--Role of Temperature in Development of Abnormal-Pressure Zones: GEOLOGICAL NOTES
Colin Barker
AAPG Bulletin
... in terms of the geostatic ratio, which is the ratio of observed fluid pressure to the lithostatic pressure at the same depth. Normal hydrostatic pressures...
1972
Geothermal and Geopressure Assessment with Implications for Carbon Dioxide Sequestration, Lower Tuscaloosa Formation, Louisiana
Timmon Drumm, Jeffrey A. Nunn
GCAGS Transactions
... on the log header. Pressure values were converted into geostatic ratios, which are pore fluid pressures/height of the fluid column. Data from the 96...
2012
Clays with Abnormal Interstitial Fluid Pressures
Richard E. Chapman
AAPG Bulletin
...) introduced a useful parameter, ^lgr, which can be written EQUATION (4) and is the ratio of fluid pressure to geostatic pressure at depth z. For many...
1972
Physical Properties
Jeffrey S. Hanor
Special Publications of SEPM
... PRESSURE (= LITHOSTATIC PRESSURE = GEOSTATIC PRESSURE), the pressure exerted by the bulk rock, solid grains plus fluid. 3 . SOLID FRAMEWORK PRESSURE...
1988
The State of Stress in the Earth Crust: Its Importance in Petroleum Engineering
Ph. Charlez, D. Despax
Indonesian Petroleum Association
... prevailing in the deep rock beds. This paper is divided into three parts. In the first part, we explain the different origins of the "geostatic state...
1985
Calculated Compaction States of Thick Abnormally Pressured Shales
Richard S. Bishop
AAPG Bulletin
... or dynes/km) of geostatic (^ggro), lithostatic (^ggr), and hydrostatic (^ggrw) columns. The geostatic load is thus the total unit pressure exerted...
1979
Exploration Ramifications of Subsurface Fluid Migrations in the Lake Borgne-Valentine Area of Southeastern Louisiana
Glen M. Gatenby
GCAGS Transactions
.... The pressure is studied using the geostatic ratio: defined as the observed interstitial fluid pressure divided by the total overburden pressure...
1980
Abnormal Formation Pressure
John S. Bradley
AAPG Bulletin
... of the vertical lithostatic pressure (PLH = 0.7 PLV). Geostatic pressure (PG): That pressure in the liquid below a seal which is the sum of the pressure...
1975
Natural and Artificial Cracking of Oil Source Rocks and Unconventional Reservoirs
Search and Discovery.com
N/A
Experience in Study and Prediction of Zones of Brine Shows
A. M. Novokshchenov
Petroleum Geology: A Digest of Russian Literature
.... Plastic salt flow from the increase in lithostatic pressure in lows from the action of geostatic pressure of the overlying rocks, and due to tectonic...
1981
How Salt and Shale Flow: Unit 14: Principles
Martin P. A. Jackson, William E. Galloway
AAPG Special Volumes
.... By keeping the grains apart, the excess pore pressure counteracts the lithostatic (geostatic) load pressure and lowers the effective stress (effective...
1984
Groundwater Upwelling, Near Bay St. Elaine Salt Dome in Southeastern Louisiana, as Inferred from Fluid Property Variations (1)
DANIEL P. CASSIDY and VISHNU RANGANATHAN
AAPG Bulletin
... defined as the ratio of fluid pressure to the lithostatic pressure (i.e., the pressure exerted by overlying solid grains and fluids...
1992
Spatial Variations in Subsurface Pore Fluid Properties in a Portion of Southeast Louisiana: Implications for Regional Fluid Flow and Solute Transport
R. Brent Bray , Jeffrey S. Hanor
GCAGS Transactions
...). Pore fluid pressures were studied in terms of the dimensionless parameter, geostatic ratio (= fluid pressure/lithostatic pressure). Geostatic ratios were...
1990
Determination of Phase State and Fluid Pressures in Closed Pores of Clayey Rocks
A. Kh. Makhmudov, Ye. A. Rogozina
Petroleum Geology: A Digest of Russian Literature
... pressure, i. e., pressure in the open pores, and Plit in lithostatic pressure. The correctness of the lower limit of inequality (1) is easily demonstrated...
1973
Extreme Overpressures and Anomalous Fluid Densities from RFT Pressure Surveys in Papua New Guinea Wells: Some Results and Implications
B. Kota, D. Trattner, P. Woyengu, P. K. Webb
Papua New Guinea (PNG) Petroleum Convention Proceedings
... of the lithostatic load is borne by the formation fluid. In extreme cases, the formation pressure approaches geostatic, and the overburden load...
1996
Identification of Evaporite Diapirs Formed under the Influence of Horizontal Compression
W.M. Schwerdtner
CSPG Bulletin
...) Evaporite diapirs are known to rise buoyantly under either 1) lithostatic pressure alone or 2) the combined effects of horizontal tectonic compression...
1986
Use of Hydraulic Head and Hydraulic Gradient to Characterize Geopressured Sediments and Direction of Fluid Migration in Louisiana Gulf Coast: ABSTRACT
Jeffrey S. Hanor, Janet E. Bailey
AAPG Bulletin
... on the basis of increases in pressure gradient or geostatic ratio, i. e., in-situ fluid pressure divided by total depth. Fluids and sediments having...
1983
Salt-Generated Structures of the Colorado Plateau and Possible Analogies: ABSTRACT
Wm. Lee Stokes
AAPG Bulletin
... compressional forces or perhaps under purely geostatic pressure, (2) stagnation or cessation of upward movement allowing uniform sedimentation across...
1952
Some Causes of Anomalously High Formation Pressures
L. N. Kapchenko
Petroleum Geology: A Digest of Russian Literature
... to 95-100% of the geostatic) and are independent of the age of the rocks. In the presence of gas accumulations, such cases of excessive pressure...
1964
Initial Formation Pressures in Pools with Lithologic Heterogeneity of the Pay Zones
V. F. Noval
Petroleum Geology: A Digest of Russian Literature
... of the Yasnopolyan Horizon The low formation pressures appear to be a consequence of several factors. The overall factor is the drop in geostatic pressure...
1974
ABSTRACT: DEPENDENCE OF ABNORMAL PRESSURES FROM TENSION IN THE ROCK; #90011 (2002)
A. A. Orlov, V. G. Omelchenko, I. R. Mykhailiv, A. M. Trubenko
Search and Discovery.com
...: geostatic pressure and tetonic tension. The geostatic pressure in any point of sedimentary cover is equal to gravitational pressure of higher layers...
2002
Hydrogeologic Conditions in Deep Paleogene Horizons of the Inner Zone of the Cis-Carpathian Downwarp (Lugi Area)
V. I. Baranovskiy, S. A. Makovskiy, A. F. Romanyuk, Ye. M. Shaparin
Petroleum Geology: A Digest of Russian Literature
... pressure. In the Paleogene sediments the geostatic pressure at a depth of 6000 m was 13,800 kg/cm2. Testing of the Menilitov sediments in the 6045-6080 m...
1974
Overpressure in Oil and Gas Fields of the USSR
V. S. Melik-Pashayev, V. V. Vlasenko, V. N. Seregina, M. A. Titunina
Petroleum Geology: A Digest of Russian Literature
.... In a few pools the ratio of formation pressure to hydrostatic pressure (ka) is high; the formation pressure approaches the geostatic pressure. See...
1980
Review of Conference on Hydrology of Deep Sedimentary Basins: GEOLOGIC NOTES
Parke A. Dickey , Paul H. Jones
AAPG Bulletin
...: geopressure, 12; geostatic, 0; lithostatic, 1; abnormal (abnormally high), 16; supernormal, 2; high pressure, 1; overpressure, 2; excess pressure, 2; super...
1975
Formation of the Structural Plan of the Apsheron Oil-Gas Region
A. G. Durmish’yan
Petroleum Geology: A Digest of Russian Literature
... in the Miocene clays at the crest of the Binagady fold reached 60 mpa in late Pliocene time, whereas geostatic counter pressure of the middle and upper Pliocene...
1984