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The AAPG/Datapages Combined Publications Database
Showing 37,688 Results. Searched 200,685 documents.
Gas-show Pattern at Mcmullin Ranch Field, Sacramento Valley, California
Raymond L. Knight
AAPG Bulletin
... for Blewett and Tracy reservoirs are essentially normal. Deeper zones have gradients in excess of hydrostatic (Fig. 4). DEVELOPMENT DRILLING Drilling...
1968
Geo-Fluid-Dynamic Characteristics of Hydrocarbon Pools of Karachaganak Field
V. V. Larichev
Petroleum Geology: A Digest of Russian Literature
... interval. See figure 2. Actual formation pressures are very close to normal hydrostatic pressure. This indicates the potential possibility for upward...
2001
Abstracts: Lateral and Vertical Variations in the Montney Formation, Northeast British Columbia; #90173 (2015)
John M. Behr, Steven A. Aitken, Craig Smith
Search and Discovery.com
...-grained clastic deposits, low porosity and permeability, elevated pressure, and high gas saturation. However, important properties such as hydrostatic...
2015
Mechanical Versus Thermal Cause of Abnormally High Pore Pressures in Shales: REPLY
Richard E. Chapman
AAPG Bulletin
... been noted that the pressure-depth gradient in the transition zone from normal to abnormal pressures exceeds the overburden gradient...
1982
Carbon storage and CO2-enhanced oil recovery potential in the Temblor Formation, northeast McKittrick oilfield, San Joaquin Valley, California
Kelly J. Harrington and Janice M. Gillespie
Environmental Geosciences (DEG)
... to fractional hydrostatic values using equation 5. Normal hydrostatic pressure is determined by multiplying the total depth of the well bore from...
2015
The Importance of Recognizing Hydrodynamics for Understanding Reservoir Volumetrics, Field Development and Well Placement; #41314 (2014)
Sam Green, Richard E. Swarbrick, and Stephen A. O'Connor
Search and Discovery.com
... is that the reservoir pressure is higher than “normal” (termed Artesian Water by hydrogeologists) and also higher than the non-reservoir rocks (shales) above...
2014
The Geological Significance of Abnormal Pressures in Oil and Gas Wells: Abstract
Parke A. Dickey
Tulsa Geological Society
... with pressures substantially higher or lower than normal hydrostatic because the aquifer outcrops at a higher or lower elevation than...
1967
Early Devonian Gas in Northern West Virginia and Pre-Devonian Oil Prospects: DISCUSSION
Stanley C. Herold
AAPG Bulletin
... or impervious rocks doubtfully explain the situation. To be sure, a pressure of 3,200 pounds per square inch can only exceed the normal hydrostatic head...
1951
Pore Pressure Prediction Using Seismic and Well Data with Eaton Method and Neural Network in Carbonate Reservoir, "P" Gas Field, North Sumatra
Panji Satio Hutomo, Farizi Hilman Ramadhan, Rizky Achmad Kurnia, Pradityan Febri Yudhistira, M. Wahdanadi Haidar
Indonesian Petroleum Association
..., 2011). In general, abnormal pressures are then characterized by any departure from the normal trend line (Fertl, 1976). Hydrostatic pressure known...
2019
Pore Pressure Configuration in Balikpapan Bay Area
Hendry Setiawan Lie, Oddy Adnan Mudatsir, Novrianto Pamilwa Citajaya, Sigit Arisetiadi Umri, Benyamin Sapiie
Indonesian Petroleum Association
...s the compartmentalization concept. In the north structure, the pressure data point shows a normal hydrostatic trend. Otherwise, in the centra...
2022
The National Conference on Earth Science, Banff, November 5-9, 1984: "Geopressures and Hydrocarbon Occurrences": CONFERENCE REPORT
Peter Gretener
CSPG Bulletin
... there is no uniformity of usage. When referring to normal pore pressure one considers the sedimentary sequence as an internally and externally open system...
1985
Non-Compositional Controls on Diagenetic Processes
Michael D. Wilson
Special Publications of SEPM
... on the inter action of these two pressure gradients. Lithostatic gradients in clastic sequences are relatively con stant worldwide at approximately 22.6...
1994
Abstract: Mega Compartment Complex in the Anadarko Basin: A Completely Sealed Overpressured Phenomenon, by Z. Al-Shaieb, J. Puckette, P. Ely, and A. Abdalla; #91004 (1991)
Search and Discovery.com
1991
Abstract: The behaviour of quaternary debris flows on the northeast Newfoundland slope
A. M. Mahgoub
Atlantic Geology
... high values of excess pore fluid pressure (approximately 0.7 to 2.5 times hydrostatic, depending on depth and sediment concentration). These high...
1994
Exploration for Tectonically Shielded Oil Pools in the Volgograd Region
N. S. Trukhachev, M. S. Astaf’yeva, D. A. Babich, R. A. Petsyukha
Petroleum Geology: A Digest of Russian Literature
.... This is confirmed by the excess of the initial formation pressure above the hydrostatic pressure. The oils of these horizons are similar to one another...
1976
Abstract: Overpressuring and Hydrocarbon Expulsion, by D. W. Waples and A. Okui; #91012 (1992).
Search and Discovery.com
1992
Post-Drill Analysis Of Pore Pressure And Fracture Gradient From Well Logs And Drilling Events – An Integrated Case Study Of A High Pressure Exploratory Well From Panna East, Mumbai Offshore Basin, India
Search and Discovery.com
N/A
2011
Natural and Induced Fracture Orientation
M. King Hubbert
AAPG Special Volumes
... is about the same at any given depth as that of a hydrostatic column of water extending to the surface of the ground. Below this interval of normal pressure...
1972
Underpressure Distribution and Origin of the Tight Gas Reservoirs in Middle Jurassic J2sh Formation of the Central Sichuan Basin, Southwestern China
Qiaochu Wang, Dongxia Chen, Xianzhi Gao, Yi Zou
Unconventional Resources Technology Conference (URTEC)
... to the hydrostatic pressure at the same depth, abbreviated as Pcoe) ranging from 1.2 to 1.6 (Law and Spencer, 1998). However, underpressure is also...
2021
Evaluating Naturally Fractured Reservoirs Targeted for Horizontal Drilling
R.A. Skopec
Rocky Mountain Association of Geologists
.... Normal hydrostatic gradients that may be encountered during drilling for oil and gas range from 0.433 psi/ft (9.76 kPa/m) in rocks containing fresh...
1992
Stress Fields, A Key to Oil Migration
Jean du Rouchet
AAPG Bulletin
...) acting on the kerogen which has been chemically broken up by oil formation. In sedimentary bodies whose water is at hydrostatic pressure, the migration...
1981
Subsurface Fluid Compartments, by D. E. Powley, #60008 (2006).
Search and Discovery.com
2006
Impact of the Stress State and the Natural Network of Fractures/Faults on the Efficiency of Hydraulic Fracturing Operations in the Goldwyer Shale Formation
Partha Pratim Mandal, Reza Rezaee, Joel Sarout
Australian Petroleum Production & Exploration Association (APPEA) Journal
... layer Increasing pore-pressure causes changes in vertical and horizontal stress magnitude Increasing pore-pressure reduces normal stress along...
2020
Direct evidence for abnormal overpressure generated by crude oil cracking in the Sinian Dengying Formation, Central Sichuan Basin, southwestern China
Yifan Song, Yong Chen, Tong Lin, Miao Wang, and Hui Tian
AAPG Bulletin
... overpressure refers to the excess of pore fluid pressure over the hydrostatic pressure. It can be generated through the following processes: (1) strong...
2025