Entrapment of Petroleum in Isolated Porous Bodies

Caswell Silver

AAPG Bulletin

... compaction, we are not dealing solely with normal reservoir pressure in a porous medium. By normal pressure, I mean pressure equal to the head reaching...

Deposition of Evaporites

P. C. Scruton

AAPG Bulletin

... evaporation over precipitation plus runoff exist, a slope of the water surface develops causing a basinward flow of sea water due to hydrostatic pressure...

Normal Fault Structures and Others

Bailey Willis

AAPG Bulletin

... replaced by subsidence, resulting in the occurrence of normal faults in a basin area. Since the lifting pressure of magma is an essential postulate...

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...

Dehydration Reactions

W. S. Fyfe

AAPG Bulletin

... IN HYDROSTATIC ENVIRONMENTS The term "hydrostatic" implies that pressures acting on the solid and fluid phases are identical. This is normal in most...

Front Matter - Typical Oil & Gas Fields of Southwestern Louisiana: Volume II

Lafayette Geological Society

... water drive accounting for the high recovery factors; however, depletion reservoirs are common. Reservoir pressure gradients range from a normal...

Front Matter - Typical Oil & Gas Fields of Southwestern Louisiana: Volume III

Lafayette Geological Society

...; however, depletion reservoirs are common. Reservoir pressure gradients range from a normal, hydrostatic .465 pounds per foot in the sand and sand-shale...

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...

Effects of Exhumation on Gas Saturation in Tight Gas Sandstones

Alton Brown

Rocky Mountain Association of Geologists

.... Modeled methane storage conditions are normal pressure gradient, 30,000 ppm tds pore water, thermal gradient of 1.8 F/100 ft, and 60 F surface...

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...

Experimental and Empirical Observations Supporting ACapillary Model Involving Gas Generation, Migration and Seal Leakage For the Origin and Occurrence of Regional GasifersŽ

Stephen W. Burnie Sr., Brij B. Maini, Bruce R. Palmer, Kaush Rakhit

Rocky Mountain Association of Geologists

...-Genesis State, Hydrostatic Aquifer. at normal pressures, is characteristic of a conventional system and the early Genesis stage of the developing...

Estimating Reservoir Pressure Gradient from Stage-By-Stage Pressure Fall off Analysis in Shale Horizontal Wells

Mazher Ibrahim, Ahmed Farid Ibrahim, Matt Sinkey, Thomas Johnston, Andrew McMurray

Unconventional Resources Technology Conference (URTEC)

... their use in many cases. Horizontal wells with reservoir pressure below hydrostatic are particularly challenging since running downhole pressure gauges...

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...

Akaso Field, Nigeria: Use of Integrated 3-D Seismic, Fault Slicing, Clay Smearing, and RFT Pressure Data on Fault Trapping and Dynamic Leakage

B. I. Jev , C. H. Kaars-Sijpesteijn , M. P. A. M. Peters , N. L. Watts , J. T. Wilkie

AAPG Bulletin

... field. Note the onset of overpressures indicated on the cross section at the H sands level, above which pressure gradients generally are hydrostatic...

Strat-Geopressure Fairways—The Fast Track to Prospect Evaluation: Case History from the Gulf of Mexico

Selim Simon Shaker, Walter W. Wornardt

GCAGS Transactions

... that this minimum or threshold energy constitutes a point in the diagenetic continuum at which the bonding and hydrostatic pressure energies holding water...

Carbon dioxide sealing capacity: Textural or compositional controls? A case study from the Oklahoma Panhandle*

Constantin Cranganu and Hamid Soleymani

Environmental Geosciences (DEG)

... process (Goodarzi et al., 2010).Hydrostatic pressure or normal pressure is referred to the stress exerted by the weight of the static fluid column. Density...

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...

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...

Predicting Depths of Gypsum Dehydration in Evaporitic Sedimentary Basins

E. Craig Jowett , Lawrence M. Cathles III , Bruce W. Davis

AAPG Bulletin

...) The entropy change is ^DgrS = -135.84 + 65.17log10T - 0.043T (Hardie, 1967), where T is temperature in kelvins. In a hydrostatic fluid-pressure...