The evolution of pore-scale fluid-saturation in low-permeability sandstone reservoirs

Keith W. Shanley and Robert M. Cluff

AAPG Bulletin

... are required to generate sufficient buoyancy pressure to overcome the high displacement pressures associated with these tight-gas reservoirs (e.g., Figure 2D...

The Origin of Inverse Grading in Muddy Debris Flow Deposits--A Review

Michael A. Naylor

Journal of Sedimentary Research (SEPM)

... an upward increase in either or both of clast size and percentage. Debris flows possess high viscosity and yield strength; hence dispersive pressure...

Naturally Fractured Reservoirs and Compartments: A Predictive Basin Modeling Approach

P. Ortoleva, J.M. Maxwell, D. Payne, W. Sibo, J. Comer

Rocky Mountain Association of Geologists

... networks contained petroleum in the geological past, buoyancy or overpressuring would likely have led to its expulsion. Thus, fracture networks...

Subsurface Fluid Compartments, by D. E. Powley, #60006 (2006).

Search and Discovery.com

Implications of Haline Convection for Waste Disposal in Closed Basins

Kim McCleary-Hanagan, Christopher J. Duffy

Utah Geological Association

... a relatively narrow zone. This flow pattern is not unlike conditions in coastal regions, however the salinity can be much greater, and thus buoyancy forces...

Regional Subsurface Hydrogeology, Peace River Arch Area, Alberta and British Columbia

Brian Hitchon, Stefan Bachu, J.R. Underschultz

CSPG Bulletin

... effects truly negligible because of low and almost constant salinity (Fig. 16). Pressure-depth plots (Fig. 18) show the same: buoyancy is negligible...

Hydrocarbon Production During Underbalanced Drilling … A Mathematical Model to Predict Well Productivity

Samuel Zulkhifly Sinaga, Bonar Tua Halomoan Marbun

Indonesian Petroleum Association

... is that inflow into the well is directly proportional to the pressure differential between the reservoir and the wellbore as well as the increase...

Natural Gas as a Factor in Oil Migration and Accumulation in the Vicinity of Faults

R. Van A. Mills

AAPG Bulletin

... these points of diminished pressure and these water currents, plus buoyancy, have contributed largely toward the migration of oil to favorable rock...

Gravity-Driven Consolidation of Granular Slurries--Implications for Debris-Flow Deposition and Deposit Characteristics

Jon J. Major

Journal of Sedimentary Research (SEPM)

... pressure and compact) affects their resistance to remobilization as well as their sedimentologic and stratigraphic characteristics. Here, analysis of small...

Brittle-failure controls on maximum sustainable overpressure in different tectonic regimes

Richard H. Sibson

AAPG Bulletin

...-pressure, fracture generation, and movement of fluids in the Uinta basin, Utah: AAPG Bulletin, v. 78, p. 17291747.Butler, M., and C. P. Pullan, 1990...

Petrophysical Evaluation of the Bluesky Sand, Bassett Area, Alberta

James T. McCoy

CSPG Bulletin

... of pressure systems, each with a separate gas-water contact. Miami Amoco Bassett 10-16-105-1 W6 and Amoco Miami A-1 Bassett 6-12-105-1 W6 are situated...

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

Constantin Cranganu and Hamid Soleymani

Environmental Geosciences (DEG)

... as the threshold capillary pressure of the caprock is greater than the buoyancy pressure created by the density differences between brine and height...

Lithospheric Structure and Supracrustal Hydrocarbon Systems, Offshore Eastern Trinidad

Stefan S. Boettcher, J. L. Jackson, M. J. Quinn, J. E. Neal

AAPG Special Volumes

... zone at the leading edge of the Caribbean plate. The positive buoyancy of continental lithosphere resists subduction, resulting in more earthquakes...

Abstract: Changing Lake Bathymetry with Deglaciation: The Mendenhall system

Nick Korzen, Ed Knuth, Cathy Connor

Alaska Geological Society

... and glacier thinning has continued the buoyancy-driven, large-scale calving events and ice terminus collapse of the Mendenhall Glacier. New bathymetric...

Low-Cost Flexible Riser Replacement on FPSO in a Marginal Field

Isara Boondao

Indonesian Petroleum Association

... that the replacement riser requires engineered buoyancy and ballast modules along the riser to maintain the lazy Sprofile inline with API RP 17B and clearance...

Shear Strength along Foliation Planes in Meta-Rhyolitic Tuff from the Dinding Schist, Kuala Lumpur

J. I. Nkpadobi, J. K. Raj

Geological Society of Malaysia (GSM)

... grained matrix of quartz, sericite, muscovite and biotite. Laboratory tests using the saturation and buoyancy method indi cate that unweathered meta...

Planktonic Foraminiferal Test Porosity as Paleotemperature Indicator: ABSTRACT

Mary E. Heiman, William E. Frerichs

AAPG Bulletin

... are that porosity is controlled by pore diameter and is essentially independent of pore density. We suggest that test porosity may be a buoyancy adaptation...

Role of Naturally Occurring Gas Hydrates in Sediment Transport: DISCUSSION

William E. Sweet

AAPG Bulletin

... this patch would lose buoyancy and sink very quickly. If the gas flow were large, a plume of free gas would rise above the ocean surface. Any low...

Flexure of Lithosphere Beneath Apennine and Carpathian Foredeep Basins: Evidence for an Insufficient Topographic Load: ERRATUM

L. Royden, G. D. Karner

AAPG Bulletin

... is equivalent to the negative buoyancy force generated by a slab with cross-section area of 4,000 km2 (1,540 mi2), 2,600 km2 (1,000 mi2), and 3,000 km2...

Integrating an exploration OBN into a full-scale prospect maturation workflow: Gulf of Mexico Lower Tertiary

Scott Yurman, Marcus Cahoj

International Meeting for Applied Geoscience and Energy (IMAGE)

..., high fidelity seismic velocities can be used to estimate rock, fluid, and pressure parameters. However, a seismic velocity that generates a good...

Development of Storage of Captured CO2 as a New Geoscience Business—Focus on the Gulf Coast

Susan D. Hovorka, Ramón H. Treviño

GCAGS Transactions

..., understanding issues such as long-term CO2 migration under buoyancy, wettability and capillary entry pressure of both flow units, and flow barriers...

Use of Drilling Data to Generate Rock Mechanical and Natural Fracture Property Logs in Horizontal Wells, #41806 (2016).

Mazeda Tahmeen, Geir Hareland

Search and Discovery.com

...   bottom  DWOB : down hole weight on the bit  : buoyancy factor     top   bottom       sin   2       W : buoyed weight 2...

Modified-grain-flow Deposits from the Upper Cretaceous Vallcarga Formation, South-Central Pyrenees, Spain

Jeroen D. Schuppers, Allard W. Martinius

Journal of Sedimentary Research (SEPM)

... mixtures presumably were the dispersive pressure produced by colliding clasts, and the buoyancy provided by the dense, sandy interstitial fluid. The sand...

Migration from Source to Trap: Chapter 3: PETROLEUM GENERATION AND MIGRATION

William A. England, Alastair L. Mann, David M. Mann

AAPG Special Volumes

... that W g= -^nablaP, the vertical pressure gradient in the water, we have [EQUATION (7)] This equation defines the buoyancy force, which acts...

Overpressure Mechanisms in Compressional Tectonic of Borneo Deepwater Fold-Thrust Belt

Geovani C. Kaeng, Sarah Sausan, Zulfikar Simatupang

Indonesian Petroleum Association

... prospects, particularly in the northwest, has been challenging due to subsurface drilling hazards related to pore pressure (PP) and wellbore stability...