Naturally Underpressured Compartments and Geologic Sequestration of Carbon Dioxide, by James O. Puckette, #40210 (2006).

Search and Discovery.com

Origin and Consequences of Variable Gas Saturation in Coalbed Methane Reservoirs of the Black Warrior Basin

Jack Pashin

Search and Discovery.com

... that areas of underpressure favor high gas production in concert with minimal water production. ORIGIN AND CONSEQUENCES OF VARIABLE GAS SATURATION...

A New Type of Reservoir Rock in Volcaniclastic Sequences (1)

LEV VERNIK

AAPG Bulletin

..., alpha is the Biot poroelastic parameter and End_Page 834------------------------------ is taken alpha = 1, xi is the coefficient of underpressure...

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

Ben Law

Unconventional Resources Technology Conference (URTEC)

... burial history, temperatures were reduced with a partial loss of hydrocarbons and the development of underpressure. The interpretations offered here...

ABSTRACT: Source Controls on the Occurrence of Upper Paleozoic Giant Tight Gas Fields in the Ordos Basin, China; #90134 (2011)

Jingzhou Zhao, Qing Cao, Xinshe Liu, Liyong Fan, and Yuanfang Fan

Search and Discovery.com

... by underpressure, whereas the past one was likely overpressured in Early Cretaceous. The present underpressure is largely regarded as the consequence...

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

Jim Puckette

GCAGS Transactions

... in sedimentary basins, and the causes of natural abnormally low pressure (underpressure). A number of hypotheses were proposed for the generation and maintenance...

Ch.7 - Cretaceous Basin Center Gas Plays - The Influence of Depositional Environments of Coal Stratigraphy

John C. Horne

Rocky Mountain Association of Geologists

... gas plays in the Rocky Mountain basins have been associated with abnormal pressure regimes, either overpressure or underpressure. Generally...

Abnormal Pressure Occurrence in the Malay and Penyu Basins, Offshore Peninsular Malaysia „ a Regional Understanding

Mohd Shariff Bin Kader

Geological Society of Malaysia (GSM)

... is considered abnormal. The terms abnormal pressure or overpressure and underpressure refer to values above and below this value (0.433 psi/ft...

Using Pad ISIP, DFIT, and ESP Data to Generate a Pore Pressure Model for the Midland Basin

Donny Loughry, David Epps, James Forrest

Unconventional Resources Technology Conference (URTEC)

... from the Spraberry formation is responsible for the underpressure observed therein. However, recent observations support the hypothesis...

Abstract: Hydrodynamic Control of Coalbed Methane Reservoir Performance in the Black Warrior Basin

Jack C. Pashin

GCAGS Transactions

... of extreme underpressure. A bimodal pressure-depth plot indicates that Pottsville coalbed-methane reservoirs are compartmentalized, and the effects...

Distribution of Anomalously High Formation Pressures in the Black Sea-Crimean Oil-Gas Region

R. M. Novosiletskiy, O. M. Ozernyy

Petroleum Geology: A Digest of Russian Literature

... show stratigraphic range of overpressure and underpressure within the given tectonic element. ABIIA - overpressured AHIIA - underpressured...

The in situ Stress Field of the Cooper Basin and its Implications for Hot Dry Rock Geothermal Energy Development

S. D. Reynolds, S. D. Mildren, R. R. Hillis, J. J. Meyer

Petroleum Exploration Society of Australia (PESA)

... measurements, largely from the Moomba field, indicate underpressure, which is a result of draw down due to extensive production in the basin over the past 40...

Preservation of lateral pressure disequilibrium during the uplift of shale reservoirs

Xinyu Xia, Eric Michael, and Yongli Gao

AAPG Bulletin

... pressure is commonly categorized into underpressure, normal pressure, or overpressure (Osborne and Swarbrick, 1997). Overpressure refers...

Generation and Migration of Petroleum from Abnormally Pressured Fluid Compartments (1)

JOHN M. HUNT

AAPG Bulletin

... of pore fluids eventually causes fracturing of the top compartment seal during periods of basin sinking. Hydrocarbons and other pore fluids then move...

Unorthodox Deep-Basin Accumulations – A Neglected Exploration Target Within Many Active Petroleum Systems

Fred F. Meissner

Indonesian Petroleum Association

... accumulations are characterized by: • completely hydrocarbon-saturated reservoirs covering a large area • overpressure or underpressure • no basal water...

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

... fluids have moved vertically, resulting in abnormal formation pressures that range from underpressure to overpressure. These anomalies have developed...

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

... structures, b-negative structures. Formation pressure in the region varies over a wide range from normal to underpressure and overpressure. In spite...

Lithologic Controls of Pressure Distribution in Sedimentary Basins; #40898 (2012)

John Tackett and Jim Puckette

Search and Discovery.com

... in Sedimentary Basins Normal Pressure Overpressure Pressure Distribution in Sedimentary Basins Normal Pressure Underpressure Normal or Underpressure...

Devonian and Mississippian Hydrocarbon Generation and Migration in Southern West Virginia, Appalachian Basin; #80220 (2012)

Scott McCallum and Chris Willan

Search and Discovery.com

... burial Overlying aquifer acts as seal (water block/capillary trapping) System was overpressured during the Permian Drop to underpressure due...

A New Pore Pressure Prediction Model for Naturally Fractured Shales and Stacked Plays: The Effect of Active Hydrocarbon Generation - A Powder River Basin Case Study

Daniel Orozco, Roberto Aguilera

Unconventional Resources Technology Conference (URTEC)

..., and fluid type. There are also natural mechanisms leading to abnormally low formation pressures or underpressure. However, those cases are not relevant...

Large-Scale Underpressuring in the Mississippian-Cretaceous Succession, Southwestern Alberta Basin

Stefan Bachu, J. R. Underschultz

AAPG Bulletin

... and Hanshaw (1968) and Bradley (1975) briefly reviewed various causes for abnormal pressures, and Neuzil (1986) provided a more thorough analysis...

Pervasive Tight Gas Sandstone Reservoirs: An Overview

Lawrence D. Meckel, M. Ray Thomasson

Rocky Mountain Association of Geologists

... may not be recoverable. So presently, two schools of thought have developed as to the characteristics and causes of commercial basin centered gas...

The Potential for Coalbed Gas Exploration and Production in the Greater Green River Basin, Southwest Wyoming and Northwest Colorado

Roger Tyler, William R. Kaiser, Andrew R. Scott, Douglas S. Hamilton

Rocky Mountain Association of Geologists

... complexity (folds and faults) may favor the presence of fracture-enhanced permeability and conventional trapping of gas, it causes steep dips and deep burial...

Fluids and pressure distributions in the foreland-basin succession in the west-central part of the Alberta basin, Canada: Evidence for permeability barriers and hydrocarbon generation and migration

Karsten Michael, Stefan Bachu

AAPG Bulletin

... and possibly physical barriers. The distributions of gas, oil, and water and of underpressure, subhydrostatic pressure, and overpressure in various strata...

Formation of High Helium Gases: A Guide for Explorationists, #80115 (2010)

Alton A. Brown

Search and Discovery.com

... He fractionates into the gas phase in shallow reservoirs than in deep reservoirs. Lower fluid pressure gradient (underpressure) favors more helium...