Regularities in the Distribution of Overpressure in the South of the Ukraine

O. M. Ozernyy

Petroleum Geology: A Digest of Russian Literature

... are mixed - Upper Cretaceous limestones and Lower Cretaceous sandstones; 5) anomaly coefficients (ratio of initial formation pressure to hydrostatic...

Pressure Origin and Distribution in Jurassic of Viking Basin (United Kingdom-Norway): GEOLOGIC NOTES

A. Chiarelli, F. Duffaud

AAPG Bulletin

..., and p reaches a hydrostatic value (i.e., normal pressure). Conversely, if the fluid cannot escape easily with regard to the burial conditions...

Overpressure Mechanism Type … A Preliminary Prediction on Talang Akar and Gumai Formation of Betara Structure, Jambi Sub Basin

Lia Reulina Ketaren, Budi Malaysetia Amboro, M.N. Alamsyah, Andri Syafriya, Lucky Kriski Muhtar

Indonesian Petroleum Association

... the normal hydrostatic pressure. According to Huffman and Bowers (2002) after Chopra and Huffman (2006), the schematic map of global overpressure...

Pressure Prediction in Exhumed Basins

A. Edwards, J. Heller, S. Clancy, N. Whitfield, S. O'Connor

GEO ExPro Magazine

... assuming the rocks are Visian 2500 normally compacting with hydrostatic pore pressure, which is much more complicated if the rocks are not at 3000...

Delineation of Anomalously Pressured Gas Accumulations in the Riverton Dome Area, Wind River Basin, Wyoming

Ronald C. Surdam, Zun Sheng Jiao, Nicholas G. K. Boyd III

Wyoming Geological Association

...-dimensional evaluation, of the pressure boundary between normal and anomalous pressure regimes (i.e., this boundary is typically expressed as a significant...

Hydrodynamic stagnation zones: A new play concept for the Llanos Basin, Colombia

Mark Person, David Butler, Carl W. Gable, Tomas Villamil, David Wavrek, Daniel Schelling

AAPG Bulletin

... the hydrostatic pressure gradient line (by 400 psi [2.7 MPa] relative to the land surface; Figure 3E). The subhydrostatic pressures are associated...

Abstract: Regional Underpressure And Gas-Saturation In The Upper Cretaceous And Tertiary Of Central Alberta; #90213 (2015)

Jim Letourneau

Search and Discovery.com

... volume expansion associated with erosional unloading. This paper proposes an alternate hypothesis. Gas pressure gradients show a predominantly west...

Reducing Drilling Risks in J bend Wells Targeting Basement in Tectonic Area through Geomechanical Solutions; #42308 (2018)

Rajeev Kumar, Rahul Talreja

Search and Discovery.com

... with 71pcf73pcf+ to minimize breakouts in shale layers of Barail Formation at 25o well deviation even formation pressure is hydrostatic. 9-5/8” casing shoe should...

Correlation of the Pore Pressure Gradient and Maturity of the Niobrara Formation Across the Powder River Basin, Wyoming; #30634 (2021)

Adriana G. Perez, David Yale, Robert Raney, Ross Taylor

Search and Discovery.com

...: hydrostatic pore pressure Vp-meas-porocorr: measured compressional velocity with porosity corrected. Vp-NPT-lithcorr : extrapolated normal pressure...

Pore Pressure Modeling Using Multivariate Geostatistics, #42299 (2018).

Flavia Braz Ponte, Francisco Fabio de Araujo Ponte, Adalberto da Silva, Alberto Garcia de Figueiredo Jr.,

Search and Discovery.com

... for generation of high quality maps of pore pressure distribution and are fast, robust and easy to implement. Methodology Pore pressure gradients from five wells...

Seepage pathway assessment for natural gas to shallow groundwater during well stimulation, in production, and after abandonment

Maurice Dusseault and Richard Jackson

Environmental Geosciences (DEG)

... to a height of ∼6400 m (∼20997 ft; 66 MPa ÷ ÷ g) for the short period of time the pressure increment remains at 50 MPa (7252 psi) above the hydrostatic...

Fracture Reservoirs

William H. Curry, III

Earth Science Bulletin (WGA)

... is present in the test interval, final shut-in pressure is often at least half of the normal hydrostatic pressure for the depth. Even more significant...

Altamont-Bluebell--A Major, Naturally Fractured Stratigraphic Trap, Uinta Basin, Utah

Peter T. Lucas, James M. Drexler

AAPG Special Volumes

... is significantly enhanced by vertical fractures and initial fluid-pressure gradients, some of which exceed 0.8 psi/ft. The crude has a high paraffin content...

Oil Reservoirs

F. B. Plummer

Tulsa Geological Society

... in but not escape. Second, they are areas of low hydrostatic pressure with respect to the surrounding area in the oil sand. In most cases the differential...

Case History Study of Seismic-Driven 3-D MEM Calibrated with 1-D MEMs and Petrophysics in Arkoma Basin, Oklahoma

Vivek Swami, Julio Tavares, Vishnu Pandey, Tatyana Nekrasova, Dan Cook, Jose Moncayo, David Yale

Unconventional Resources Technology Conference (URTEC)

... to be used for hydraulic fracturing simulation and calculations (Yale & Swami, 2017). Next, Instantaneous Shut-In Pressure (ISIP) gradients were collated from...

The Importance of Multi-Scale Petroleum System Assessment for Plays and Prospects De-Risking in the Eastern Mediterranean Basin, #11332 (2020).

G. Perez-Drago, N. Mouchot, M. Dubille, L. Montadert, D. di Biase, P. Lacone, M. Mazzarelli, M. Hosni, A. Thebault

Search and Discovery.com

... in the evolution of fluid flow orientation, pressure gradients, and hydrocarbon migration and dis-migration. The fluid flow is also controlled by the presence...

Bottom Hole Pressure Management in a Highly Permeable and Narrow Margin MPD Operation

Ugochukwu Oseme, Sunday Awe, Obinna Amah, Adeyemi Erinle, Ayodele Akinfolarin, Timothy Ibrahim, Vincent Roes

Africa Energy and Technology Conference, 2016

... Pressure (BHP) by providing surface back pressure (SBP) in addition to the hydrostatic mud column during flow-off events. The surface back pressure...

Chemical Kinetic Model of Hydrocarbon Generation, Expulsion, and Destruction Applied to the Maracaibo Basin, Venezuela

Jerry J. Sweeney , Robert L. Braun , Alan K. Burnham , Suhas Talukdar , Carlos Vallejos

AAPG Bulletin

... compared to calculations (open circles). Upper and lower solid lines show lithostatic and hydrostatic pressure gradients for reference...

Complexity of Pore Pressure and Stress Analyses in Mahakam Median Axis of the Lower Kutai Basin, Kalimantan, Indonesia

Roni Herdiyanto, Joe-Anderson Siadary, Dhanny Fadlan

Indonesian Petroleum Association

... that there are three pore pressure patterns in the study area, i. e. normal pressure, low over pressure and high over pressure. The analysis of cross-plot...

Texture, Mineralogy, and Petrophysical Properties of Geopressured Shales, Gulf of Mexico

Jin-wook Kim, Robert R. Berg, Joel Watkins, Thomas T. Tieh

GCAGS Transactions

... than the normal hydrostatic pressure (commonly 0.465 psi/ft in the Gulf Coast area). The total pressure is the sum of the hydrostatic (fluid pressure...

Entrapment of Petroleum Under Hydrodynamic Conditions

M. King Hubbert

AAPG Bulletin

... of measurement. The relation between this rise and the pressure p will be given by the hydrostatic equation EQUATION (5) When this is substituted...

Diagenesis of Volcanic Sandstones

Ronald C. Surdam, James R. Boles

Special Publications of SEPM

... probably ranges from Pr static pressure to Pr hydrostatic pressure It is not surprising that many dehydration reac tions in volcanogenic sandstones...

Vertical Source in Oil and Gas Accumulation: GEOLOGICAL NOTES

James H. Gardner

AAPG Bulletin

... hydrostatic head, all indicate ready movement of liquids under excess of pressure. More pressure finds more permeability through either tight fractures...

Effects of Low- and High-Resolution Fault Interpretations on Simulated Pressure Distributions: An Example from the North Sea

Search and Discovery.com

Application of Both Physics-Based and Data-Driven Techniques for Real-Time Screen-Out Prediction with High Frequency Data

Jianlei John Sun, Arvind Battula, Brandon Hruby, Paymon Hossaini

Unconventional Resources Technology Conference (URTEC)

... ISIP gradient (Chipperfield et al. 2000), pressure declining gradients (PDG) (Yang et al. 2008), screen-out Index (SOI) (Massaras and McNealy 2012...