Analysis of the Multiwell Experiment Data and Results: Implications for the Basin-centered Gas Model

Norman R. Warpinski, John C. Lorenz

AAPG Special Volumes

... gradients of about 18 kPa/m (0.8 psi/ft), almost double the normal hydrostatic gradient. This increase occurs in a stair-step manner.FIGURE 12. MWX mud...

In situ stress state in the petroliferous Barmer Basin, northwestern India: A new geomechanical approach

Premanand Mishra, G. Karthikeyan, Sabyasachi Dash, Shubhodip Konar, Ajoy K. Bora, Utpalendu Kuila, Dilip K. Mukhopadhyay, and Mark D. Zoback

AAPG Bulletin

... = normal fault; Pp = pore pressure; RF = reverse fault; Shmin = minimum horizontal stress; Slid Fric = sliding friction; SS = strike-slip; Sv...

A Tip Screenout Fracturing Pilot in a Shallow Heavy Oil Steamflood

Rizal Djunaidy Nasution, Pristiwanto H. Putra, F. Kent Thurston, Brad Malone

Indonesian Petroleum Association

... hydrostatic pressure. A post-frac tracer scan log was run to accurately determine the frac height. In order to activate the resin coated sand, the well...

Hydrodynamic Pools at Faults

N. A. Eremenko, I. M. Michailov

CSPG Bulletin

... and reservoir layers. The more continuous and permeable the reservoir layer, the more quickly does it attain a normal hydrostatic pressure for the system...

Abstract: Evolution of Carbonate Porosity During Burial — Bahamas, Florida and Gulf Coast: Holocene to Jurassic

Robert Halley

Earth Science Bulletin (WGA)

... pressures in excess of normal hydrostatic pressure. Physical, geochemical and lithologic parameters associated with these deep, highly porous reservoirs...

Post-Sedimentational Alteration of Bazhenov Rocks

T. V. Dorofeyeva, S. G. Krasnov

Petroleum Geology: A Digest of Russian Literature

... is suggested by overpressure in the Bazhenov, exceeding two fold the normal hydrostatic pressure. Overpressure is not found beneath the Bazhenov...

Abstract: Variation in Style of Overpressure in Scotian Shelf Wells, Scotian Basin

Dillon White, Georgia Pe-Piper, David J. W. Piper

Atlantic Geology

..., B2Y 4A2 Overpressure is a phenomenon where pressures greatly exceed normal hydrostatic pressure and occurs in many wells within the Scotian Basin...

Evolution of Carbonate Porosity During Burial--Bahamas, Florida, and Gulf Coast: Holocene to Jurassic: ABSTRACT

Robert B. Halley

AAPG Bulletin

... in excess of normal hydrostatic pressure. Physical, geochemical, and lithologic parameters associated with these deep, highly porous reservoirs should...

Abstract: Relationship between Overpressured Compartments and Spatial Variations in Pore Fluid Salinity in Sediments of South Marsh Island OCS 310, Offshore Louisiana, by Russell W. Spears and Jeffrey A. Nunn; #90914(2000)

Search and Discovery.com

Mechanical Stratigraphy and Barriers to Hydraulic Fracture Growth: Insights From Geomechanical Models

Search and Discovery.com

Compaction and Migration of Fluids in Miocene Mudstone, Nagaoka Plain, Japan

Kinji Magara

AAPG Bulletin

... the added weight of the sediments. Fluid in pores would have greater pressure than the normal hydrostatic head, and abnormal pressure would...

Importance of Hydrodynamic Factor in Formation of Lower Cretaceous Combination Traps, Big Muddy-South Glenrock Area, Wyoming

Donald S. Stone , Roger L. Hoeger

AAPG Bulletin

....: San Francisco, W. H. Freeman, 724 p. Petroleum Research Corp., 1958, Capillary pressure under hydrostatic and hydrodynamic conditions: Research...

Preliminary Interpretation of the Pressure Architecture in Parts of Northern Louisiana, Southern Arkansas, and Eastern Texas

Jim Puckette

GCAGS Transactions

...-depth gradients of approximately 0.47 psi/ft (10.62 kPa/m). The maintenance of normal fluid pressure in the upper part of the Smackover Formation...

Secondary Migration and Accumulation: Chapter 12: Part II. Secondary Migration and Accumulation of Petroleum, Compiled by Robert H. Dott and Merrill J. Reynolds

AAPG Special Volumes

... to lithostatic and hydrostatic pressure. Influenced perhaps by Newberry's idea, the petroleum fraternity early assigned the cause of pressure in wells...

Hydrodynamic Anomalies and Oil-Gas Potential of the Offshore Parts of the North Sakhalin Oil-Gas Basin

G. P. Vakhterov, I. Ye. Nikolayev

Petroleum Geology: A Digest of Russian Literature

... of the North Sakhalin basin form an aquifer in which infiltrating water is under hydrostatic pressure. This water is the sodium bicarbonate type...

Frictional Mechanics of Seismogenic Thrust Systems in the Upper Continental CrustImplications for Fluid Overpressures and Redistribution

R. H. Sibson

AAPG Special Volumes

.... (2) Steep faults make an efficient drainage channel across the steepest hydraulic gradients. (3) Reduction of normal stress enhances postfailure...

Characteristics of Formation of Zones of Oil-Gas Accumulation in Jurassic-Cretaceous Sediments of the Yenisey-Katanga Regional Downwarp

A. D. Lugovtsov, V. I. Moskvin

Petroleum Geology: A Digest of Russian Literature

... at higher pressure (in comparison with normal thermo-barometric conditions) due to liberation of greater amounts of hydrocarbons with lower molecular...

Diagenesis, Compaction, and Fluid Chemistry Modeling of a Sandstone Near a Pressure Seal: Lower Tuscaloosa Formation, Gulf Coast

Suzanne D. Weedman , Susan L. Brantley , Ryoji Shiraki , Simon R. Poulson

AAPG Bulletin

...) (Smolen, 1977), document the transition from normal to overpressure within the lower Tuscaloosa Formation in these two fields. Pressure gradients derived...

The Three Elements of Structural Geology, #41849 (2017).

Terry Engelder

Search and Discovery.com

... is different from the pressure solution on the external rim because the former is enhanced not by the normal pressure from the silt grains within the axial...

Development of Sediment Overpressure and Its Effect on Thermal Maturation: Application to the Gulf of Mexico Basin

Ulisses T. Mello , Garry D. Karner

AAPG Bulletin

... steady-state form when the pore pressure is hydrostatic. An important feature of our modeling approach is the assumption that sediments are incapable...

Maturation and Migration of Hydrocarbons in the Southeastern Pannonian Basin: Chapter 25

A. Szalay

AAPG Special Volumes

... but were not taken into consideration in this study. When fluid flow is not restricted during compaction, the pore pressure should be hydrostatic...

Tilted Fluid Contacts in Mid-Continent Region

William L. Russell

AAPG Bulletin

..., the horizontal gradients in head or pressure, the speed of flow, the permeability, and the viscosity. These equations may be used to analyze the field data...

SAFOD—The San Andreas Fault Observatory at Depth and Its Relevance to Oil and Gas

Bill Rizer

Houston Geological Society Bulletin

... 0.6 < μ < 0.7 with nearly hydrostatic pore-pressure gradients” This statement implies that faults are generally strong and levels of shear stress high...

Stress, pore pressure, and dynamically constrained hydrocarbon columns in the South Eugene Island 330 field, northern Gulf of Mexico

Thomas Finkbeiner, Mark Zoback, Peter Flemings, Beth Stump

AAPG Bulletin

... at the top of each sand (black for oil phase, gray for gas phase) calculated by using live oil gradients (Table 3). Solid lines represent hydrostatic...

Performance of Fractured Oil Reservoirs

Sylvain J. Pirson

AAPG Bulletin

... hypothesis would be particularly effective while low pressure gradients prevail within the reservoir. The hypothesis submitted herein...