Abstract: Models for the Development of Listric Normal Faults and Fault Seals

John B. Spang

GCAGS Transactions

..., fault smear, "normal" drag folding and displacement gradients from as little as zero at the top layer to a maximum at depth. The new model contains...

Fracture stratigraphy, stress, and strain evolution in shale succession of the lower Paleozoic Baltic Basin (Poland)

Marek Jarosiński, Kinga Bobek, Andrzej Głuszyński, Krzysztof Sowiżdżał, and Tomasz Słoczyński

AAPG Bulletin

... under a normal faulting stress regime, the pore pressure could drop close to hydrostatic pressure. This can explain the low value of the present-day pore...

Overpressure transmission through igneous intrusions: An unrecognized drilling hazard in volcanic affected basins?

Nick Schofield, Simon Holford, Alex Edwards

Petroleum Exploration Society of Australia (PESA)

... to as overpressure, is a common occurrence within sedimentary basins, occurring when the pore-fluid pressure is greater than the hydrostatic pressure expected...

ABSTRACT: Pore Pressure Predictions in the Challenging Supra / Sub-Salt Exploration Plays in Deep Water, Gulf of Mexico; #90007 (2002)

Shaker, Selim, Smith, Michael

Search and Discovery.com

... this process. The unique salt petrophysical properties contribute to substantial changes in the pore pressure gradients in the host sediments above and below...

Overpressures and Hydrocarbon Migration in the Hibernia-Nautilus Area of the Jeanne D'Arc Basin, Offshore Newfoundland: DISCUSSION

Glen S. Stockmal

CSPG Bulletin

... impossible. (3) Their contention that formation pressure will revert back to "normal" (hydrostatic) following the fracture event is highly unlikely...

Observations on Structures Associated with Mud Diapirism and their Role in Petroleum Charging and Trapping - Presentation

Rod Graham and Andy Pepper

Search and Discovery.com

... - Hydrostatic Case 1250 2500 8000 10000 12000 Overburden Pressure (Sediments) 2250 6000 Hydrostatic Pressure (sediments) 2000 4000 Mud Pressure...

Fold Development in Zagros Simply Folded Belt, Southwest Iran

S. P. Colman-Sadd

AAPG Bulletin

... of the Competent group forms the outer arc of the fold and is therefore subject to extension normal to the fold axis, and to a relatively low hydrostatic...

The Possible Significance of Pore Fluid Pressures in Subduction Zones: Tectonic Processes: Model Investigations of Margin Environmental and Tectonic Processes

Roland von Huene, Homa Lee

AAPG Special Volumes

... Fig. 1. Pressure gradients in selected wells, showing contrast between a hole on normal continental crust in Queen Charlotte Sound (Tyee), and two...

Integrated Geomechanical Modelling for Successful Offshore Exploration Well Planning and Execution - A Case Study from Sebuku, Indonesia

Reynaldi Mikhael Chrislianto, Romi Sagita, Amitava Ghosh, Argha Hilman, Dedi Ariyono

Indonesian Petroleum Association

... is modelled as hydrostatic to the planned TD. Three cases for pre-drill shallow gas carbonate pore pressure in the SB05 formation have been proposed: 1...

Nonhazardous Oil Field Waste Disposal into Subpressured Zones

S. A. Marinello, W. T. Ballantine, F. L. Lyon

Environmental Geosciences (DEG)

... the disposal zone is subpressured relative to the normal hydrostatic gradient. Despite 10 million barrels of injection, a significant increase...

Drill Stem Testing: Part 3. Weelsite Methods

Ingrid Borah

AAPG Special Volumes

... the closing tool. Pressure transient analysis done from these gauges. (A) Run in hole, gauge measuring hydrostatic pressure of mud column; (B) initial...

Innovative Gun System Tackles Todays Challenges to Unconventional Completions

Carlos Eduardo Guedes, Brian D. Clark, Carlos E. Baumann, Fokko Doornbosch, Andrew Prisbell, Sharif Aboelnaga

Unconventional Resources Technology Conference (URTEC)

... parameters were identical, except for the gun system used. The slurry rate is a function of the hydrostatic pressure, pipe friction, perforation friction...

Miocene Reefs, Offshore North Sumatra

Phil A. Mundt

Southeast Asia Petroleum Exploration Society (SEAPEX)

... in the ‘A’ field have productive potentials in the range of 16 to 28 MMCFG/D. All wells have normal hydrostatic bottom-hole pressure and temperature gradients...

Virtually Eliminate Dry or Sub-Economic Wells in Over-Pressured and Normal-Pressured Fields: Jonah Field and Anadarko Basin Case Studies, #20383 (2017).

Rick Schrynemeeckers

Search and Discovery.com

... and OGIP (original gas in place) times reservoir pressure. The difference in geochemical signatures at over-pressured versus normal-pressured wells...

Detection of Deep Formation "Damage"

M. Lebourg, A. T. Campbell Jr., E. J. Witterholt

Tulsa Geological Society

... Well Depth — 10,000 Ft. Reservoir Pressure — 4,000 PSI+ (based on normal gradient) Initial Flow Period Reactions — Strong Blow Throughout Period...

Pressure and Fluid Contact Evolution of “Basin Centered Gas” Accumulations, by Keith W. Shanley and Robert M. Cluff

Search and Discovery.com

Vp/Vs Ratio from Three Component Zero Offset: An Additional Tool for Pressure Prediction Ahead of the Bit

Carlos Planchart, Carlos Vargas, Raul Cova, Alexander Palacios

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... pressures higher than the normal hydrostatic pressure of pore fluids. . METHOD TO DETERMINE Vp/Vs The method to derive Vp/Vs from VSP data compares the times...

Styles of Continental Rifting: Results from Dynamic Models of Lithospheric Extension

Jean Braun, Christopher Beaumont

CSPG Special Publications

... of revolution about the hydrostatic axis. The sequence of these failure envelopes with σs increasing with depth closely approximates the pressure...

The impact of organic pores on estimation of overpressure generated by gas generation in organic-rich shale: Example from Devonian Duvernay Shale, Western Canada Sedimentary Basin

Pengwei Wang, Zhuoheng Chen, Kezhen Hu, and Chen Xiao

AAPG Bulletin

... additional gas resource due to higher gas compressibility under higher pore pressure than that under a normal formation pressure (Munson, 2015...

AAPG/Datapages Discovery Series No. 7: Multidimensional Basin Modeling, Chapter 10: Application of Compositional Basin Modeling to GOR and API Prediction in the North Sea

Wendebourg, J., S. J. Duppenbecker

AAPG Special Volumes

... subsidence pressure and temperature gradients. According to Figure 15, phase change of low-GOR petroleum fluids is sensitive to pressure...

Recent Developments in Prospect Mapping in the Hides/Karius Area of the Papuan Fold Belt

Andrew Grainge

Papua New Guinea (PNG) Petroleum Convention Proceedings

..., from below hydrostatic (ground level datum) at lagifu, Hedinia and Agogo, to significantly above at Hides. In absolute pressure terms. Figure 9 shows...

Regional Fractures I: A Mechanism for the Formation of Regional Fractures at Depth in Flat-Lying Reservoirs (1)

JOHN C. LORENZ , LAWRENCE W. TEUFEL , and NORMAN R. WARPINSKI

AAPG Bulletin

... conditions necessary for low rock strength and brittle deformation can occur at any depth if the pore pressure exceeds the normal hydrostatic gradient...

Geologic Factors Controlling Production in the Codell Sandstone, Wattenberg Field, Colorado; #20346 (2016)

Stephen A. Sonnenberg

Search and Discovery.com

... important for production include: proximity to thermally mature source beds; thickness; geothermal gradients; pressure gradients; fault bounded reservoir...

Estimating the Amount of Oil and Gas Accumulation from Top Seal and Trap Geometry

Fuminori Sawamura, Kazuo Nakayama

AAPG Special Volumes

...: Hydrostatic Trap-equilibrium EquationOver the geological timescale of hydrocarbon migration, only capillary-pressure properties are needed...

Analysis of Hydrodynamic Factors in Petroleum Migration and Entrapment

Richard W. Davis

AAPG Bulletin

... equations on capillary pressure phenomena to allow study of oil migration and entrapment patterns. The new equations are used to evaluate...