Abstract: In-situ Stress and Origin of Overpressures in the West Alboran Basin; #90137 (2011)

Fermín Fernández-Ibáñez and Juan I. Soto

Search and Discovery.com

.... Pore pressure profile is defined by means of direct measurements in permeable formations, and normal compaction trend lines in shale-prone sediments...

Comparison of Interval Velocity and Inversion Velocity Usage to Build 3D Pore Pressure Models - Case Study: JA Field, East Java Basin

Jihan Hardiyanti Arief, Alamsyah M. Juwono, Muhajir

Indonesian Petroleum Association

... that exceeds normal pore pressure or hydrostatic pressure. Pre-drill pore pressure analysis could be performed using velocity variables, in which...

Geo-Fluid-Dynamic Aspects of Oil-Gas Accumulation in Sub-Salt Sediments of Central Siberian Craton

M. S. Kraychik, O. A. Baboshina

Petroleum Geology: A Digest of Russian Literature

... the coefficient of abnormal formation pressure (Kan), which is the ratio of formation pressure to hydrostatic pressure. The areas with lowest formation...

Conceptual Model for Origin of Abnormally Pressured Gas Accumulations in Low-Permeability Reservoirs

B. E. Law, W. W. Dickinson

AAPG Bulletin

... of about 11,600 ft (3,500 m), the interpreted reservoir pressure (P1) is 5,800 psi (40 MPa), which in this area is above the normal hydrostatic...

ABSTRACT: Generation and Migration of Petroleum from Abnormally Pressured Fluid Compartments, by John M. Hunt; #91022 (1989)

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Abstract: Formation Evaluation in Pressure-Depleted Reservoirs, by R. P. Sorenson; #91008 (1991)

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Abstract: Possible Role of a Pressure Seal in Overpressure Development and Maintenance in the Eastern Delaware Basin, West Texas, by D. D. Williams and M-K. Lee; #90940 (1997).

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Depths of Oil Origin and Primary Migration: A GEOLOGIST'S DISCUSSION

Richard E. Chapman

AAPG Bulletin

... gradient. The normal hydrostatic pressure gradient is not a barrier (or even an impediment) to the migration of fluid down the flank of an anticline...

ABSTRACT: The Use of Porosity - Effective Stress Relationships in Mudrocks, by T. W. D. Harrold; #91021 (2010)

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Abnormal Pressures and Their Relation to Oil and Gas Migration and Accumulation: ABSTRACT

R. R. Berg

AAPG Bulletin

... of reservoir rock in which the pressures can be either slightly or greatly in excess of normal hydrostatic pressures. Deficient pressures in Rocky Mountain...

High Fluid Potentials in California Coast Ranges and Their Tectonic Significance

Frederick A. F. Berry

AAPG Bulletin

..." is stratigraphic marker in Forbes Formation. Reference lithostatic and hydrostatic gradients are plotted from average surface elevation of Sacramento Valley (+ 50...

Argillaceous Rock Compaction and Primary Migration in the Mangnai Depression, Qaidam Basin, China

Chen Heli

Circum Pacific Council Publications

... of compaction. When abnormal pressure appears, the normal compaction trend is not preserved but deviates from a straight line. Therefore, we can use...

ABSTRACT Thermal Anomalies Associated with the Newport Inglewood Fault Zone Long Beach Field California, #90104 (2010)

Camacho Hilario; Boles James R.; Garven Grant

Search and Discovery.com

... is 0.035 C/m (0.019 F/ft). The  reservoir is known to be sub‐hydrostatic (as little as 20 % of hydrostatic) overlying a hydrostatically pressured...

Characteristics, evolution, and formation of pressure in the Sinian–Cambrian gas reservoirs of the Anyue gas field, Sichuan Basin, China

Zeqing Guo, Wenzhi Zhao, Guoqi Wei, Long Wen, Wuren Xie, Zengye Xie, Chunlong Yang, and Xiaobo Wang

AAPG Bulletin

... normal pressure, whereas the Longwangmiao Formation is overpressured. In this study, we used PVTsim software to calculate the minimum capture...

The Identification and Commercialization of Subnormally Pressured Unconventional, Gas-Bearing Sandstones

Ben Law

Unconventional Resources Technology Conference (URTEC)

... Pennsylvania (Figure 3). The transition from normal pressure to subnormal pressure in Ohio is coincident with the transition from conventional accumulations...

Abnormal Pressure Delineation in The East Java Basin and Its Implication for Hydrocarbon Exploration

Hesekiel Bernando N

Indonesian Petroleum Association

... classified the formation pressure into three category i.e. normal pressure in Ledok-Mundu- Upper Wonocolo Formation, low over pressure in Lower...

A New Approach to Shale Compaction and Stratigraphic Restoration, Beaufort-Mackenzie Basin and Mackenzie Corridor, Northern Canada (1)

D. R. ISSLER

AAPG Bulletin

... in porosity for hydrostatic pressure conditions. In eroded areas, the amount of missing strata can be estimated by reference to the normal compaction...

Overpressure Retardation of Organic-Matter Maturation and Petroleum Generation: A Case Study from the Yinggehai and Qiongdongnan Basins, South China Sea

Hao Fang , Sun Yongchuan , Li Sitian , Zhang Qiming

AAPG Bulletin

... pressure coefficient (fluid pressure:hydrostatic pressure ratio) measures up to 2.1, and pressure calculation indicates that the pressure coefficients...

Forced Fluid flow and Diagenesis in Porous Reservoirs Controls on the Spatial Distribution

J. R. Wood, T. A. Hewett

Special Publications of SEPM

... are that the pressure at all points in the fluid be hydrostatic and that there be no lateral density gradients. Copyright 0 1986, The Society of Economic...

Overpressure, Normal Pressure, and Underpressure and Their Coexistence in the Anadarko Basin; #41003 (2012)

Philip H. Nelson

Search and Discovery.com

..., preventing re-establishment of a normal hydrostatic gradient. Thus, the present-day pressure regime of oil and gas reservoirs is the result of a series...

Large-Scale Pore Pressure Prediction After Pre-Stack Depth Migration in the Caspian Sea (Geophysics Paper 24)

Norbert van de Coevering, Hazim Hameed Al-Dabagh, Liau Min Hoe, Tony Jolly

Geological Society of Malaysia (GSM)

... on measurements by Ostermeier et. al. (2001) is used. In this section there are no measured densities, which is very common. Basic pore pressure gradients (PP...

The Integration of Hydrodynamics and Stratigraphy, Muddy Sandstone, Northern Powder River Basin, Wyoming and Montana

D. A. Smith

Wyoming Geological Association

... as the areas of lesser gradients are isolated in "pods", which are generally separated by areas of steeper pressure gradients. Figure 9. Generalized...

Hydrocarbon-Expulsion Model and Its Application to Niigata Area, Japan

Kazuo Nakayama

AAPG Bulletin

... exists in every cell. The pressure in a carrier bed is always hydrostatic (Figure 2). The oil or gas expelled into a carrier bed, therefore, is assumed...

ABSTRACT: Effects of Fluid Pressure on Seismic Responses in Fractured Shale Reservoirs; #90013 (2003)

Qi Li, Feng Shen

Search and Discovery.com

... modulus of fluid. We exam the sensitivity of fluid pressure to the fluid indicator the normal to shear compliance ratio. The results show...

Experimental and Empirical Observations Supporting a Capillary Model Involving Gas Generation, Migration, and Seal Leakage for the Origin and Occurrence of Regional Gasifers

Stephen W. Burnie Sr., Brij Maini, Bruce R. Palmer, Kaush Rakhit

AAPG Special Volumes

.... At this point, the gasifer is developed. The transition stage has normal and underpressured gas, with tall columns that crosscut waterlines on pressure...