Optimizing Hydraulic Fracturing in Water-Sensitive Shales: A Comparative Study of Frac Fluid Performance

Fatick Nath, Rene Garcilazo Jr, Jorge Collazo Jr

Unconventional Resources Technology Conference (URTEC)

... intervals are at or above a normal hydrostatic pressure gradient of 0.4 psi/ft, with reported pore pressure gradients as high as 0.6–0.7 psi/ft...

Reducing Drilling Risks In J Bend Wells Targeting Basement In Tectonic Area Through Geomechanical Solutions

Search and Discovery.com

Overpressuring In The Jambi Merang Area, South Sumatra Basin, Indonesia: Distribution, Characteristics And Implication To Petroleum System

Search and Discovery.com

ABSTRACT: DEPENDENCE OF ABNORMAL PRESSURES FROM TENSION IN THE ROCK; #90011 (2002)

A. A. Orlov, V. G. Omelchenko, I. R. Mykhailiv, A. M. Trubenko

Search and Discovery.com

... and Gas, 15,Karpatska Str., Ivano-Frankivsk, 284018, Ukraine E-mail: [email protected] Earth crust rock pressure consists of two components...

The Three Elements of Structural Geology Part 5, #41849 (2016).

Terry Engelder,

Search and Discovery.com

...ow regime and the crack-propagation regime such that ductile flow suppresses sd to favor crack propagation upon increase in Pp above hydrostatic pressu...

Pressure and Basin Modeling in Foothills: A Study of the Kutubu Area, Papua New Guinea Fold and Thrust Belt; #30431 (2015)

Jean-Paul Callot, Kevin C. Hill, Renaud Divies, Steven Wood, Francois Roure, William Sassi

Search and Discovery.com

... Interpretation of pressure data • Hydrostatic trend: Foreland, Darai, Iorugabai, Hedinia and Iagifu • Shift of 200m to 500m of the vadose zone  Ceres...

Influence of Basement Structures on Stress Regimes in the Surat and Bowen Basins, Southeast Queensland

Samuel Brooke-Barnett, Thomas Flottmann, Pijush K. Paul, Seth Busetti, Peter Hennings, Ray Reid

Petroleum Exploration Society of Australia (PESA)

... relationship was derived regionally from rock mechanics laboratory measurements. Pore pressure was calculated based on a fresh water hydrostatic...

Pore Pressure Mapping Using Microseismicity and Borehole Data

Leo Eisner, Dmitry Alexandrov, Umair bin Waheed

Unconventional Resources Technology Conference (URTEC)

...a (40.8±0.8 MPa with hydrostatic correction) based on two ISIP values from the pressure-time records. Unfortunately, the pressure records did not provid...

What matters for flow and recovery in carbonate gas reservoirs: Insights from the mature Central Luconia Province, offshore Sarawak, Malaysia

Georg M. D. Warrlich, Erwin W. Adams, Artur Ryba, Tommy Tam, King King Ting, and Hooi-Koon Tang

AAPG Bulletin

... gas is taken off above than below it (initially, the field had one common pressure gradient; logs: gamma ray [GR]—0 to 80 API, porosity [Por], gas...

Failure of cap-rock seals as determined from mechanical stratigraphy, stress history, and tensile-failure analysis of exhumed analogs

E. S. Petrie, J. P. Evans, and S. J. Bauer

AAPG Bulletin

... = 0.25), and is hydrostatic pore-fluid pressure (Anderson, 1951; Eaton, 1969; Engelder, 1993). The stress-history models are based on burial-history...

Section Seven: Use of Wireline Logs and Dipmeters on Diapiric Structures

New Orleans Geological Society

... from the sonic log is plotted against DT shale for a normal pressure gradient. The next track contains a gamma ray curve, mud weight used, sonic...

Uses and Abuses of the Brittleness Index With Application to Hydraulic Stimulation

Jorg V. Herwanger, Scott D. Mildren

Unconventional Resources Technology Conference (URTEC)

..., respectively. Vertical stress is calculated using a constant stress gradient of V/z = 0.024MPa/m, pore pressure is calculated using a hydrostatic pore pressure...

Mud Problems in the Four Corners Region

E. J. Mayhew

Four Corners Geological Society

.... This zone is not considered exceedingly difficult because the hydrostatic pressure at these shallow depths is too low to induce fracturing along...

A Geomechanics and Pore Pressure Informed Stage Level Optimization Case Study for Unconventional, Infill Development in the Powder River Basin

Joel Mazza, Justin Kegel, Steve Van Delinder, Tom Hewett, Beth Emborsky, Scott Patrick

Unconventional Resources Technology Conference (URTEC)

.... 𝑃! = 𝑃"# − (𝑃"# − 𝑃$ ) & 𝑌𝑀%&'( + ) 𝑌𝑀)*&+, Where, Pp = new pore pressure Pob = overburden stress Ph = hydrostatic pore pressure YMmeas...

Time of Formation of Upper Cretaceous Oil and Gas Pools

A. V. Merkulov

Petroleum Geology: A Digest of Russian Literature

... of the excess pressure from its maximum value to a value that differs little from the hydrostatic pressure. Calculations by V. F. Linetskiy (6) showed...

Velocity for Pore Pressure Prediction Modeling and Risk Assessment; #41819 (2016).

Selim Simon Shaker

Search and Discovery.com

... 10000 12000 Actual MW ECD MW (surface) SIP (shut in pressure) Csg (casing) Hydrostatic OB 14000 16000 18000 Breaking and swaying NCT...

Some Effects of Capillarity on Oil Accumulation

A. W. McCoy

AAPG Bulletin

... of higher to points of lower pressure. The movement of water thus entombed does not exactly follow hydrostatic laws, as can be observed by the small loss...

Potential salinity-driven free convection in a shale-rich sedimentary basin: Example from the Gulf of Mexico basin in south Texas

John M. Sharp Jr., Thomas R. Fenstemaker, Craig T. Simmons, Thomas E. McKenna, Jennifer K. Dickinson

AAPG Bulletin

... 1.0 psi/ft or 22.6 MPa/km of depth. The sedimentary rocks in this zone are at or near their fracture pressure gradient. Over geologic time, natural...

Using Thomsen's Model to Analyze Composition and Internal Structure of Shales; #90017 (2003)

Jose Agnelo Soares, Margareth da Silva Brasil Guimaraes

Search and Discovery.com

... coordinates. In these figures colors blue, green and red indicate hydrostatic pressure of 10 MPa, 50 MPa and 100 MPa, respectively. The other samples...

Miocene seismic stratigraphy and geomorphology of Bibiyana gas field, Surma Basin, Bangladesh

Kenneth D. Ehman, Andrea F. Lisi, William S. Kowalik, James W. Turner, Joyanta Dutta, and Sirajum Munira

AAPG Bulletin

... illustrated by separate slopes of pressure with depth. These wells all lie above the normal hydrostatic gradient. Wells BY-13 through BY-26 were...

Soldier Creek Coalbed Methane Pilot Project, Carbon County, Utah

Paul B. Anderson

Rocky Mountain Association of Geologists

... production from the Book Cliffs is likely not related to poor cleat development. It is inconclusive whether hydrostatic pressure kept the adsorbed gas...

Soldier Creek Coalbed Methane Pilot Project, Carbon County, Utah

Paul B. Anderson

Utah Geological Association

... not related to poor cleat development. It is inconclusive whether hydrostatic pressure kept the adsorbed gas in the coal at SCPP. The Castlegate Field...

CO2 Sequestration and Enhanced Oil Recovery Potential in Illinois Basin Oil Reservoirs

Rex Knepp, Scott Frailey, John Grube, Beverly Seyler, Damon Garner, Christopher Korose, Bryan Huff, James Damico, Sarah Rittenhouse

AAPG Special Volumes

... pressure is straightforward because hydrostatic pressure is directly related to depth. For testing purposes, a minimum pressure gradient of 0.433 psi/ft...

The Effect of CO2 Adsorption on Permeability Anisotropy in the Eagle Ford Shale

Maytham Al Ismail, Julia S. Reece, Sander Hol, Mark Zoback

Unconventional Resources Technology Conference (URTEC)

... pressure vessel. A schematic of the hydrostatic permeability system is shown in Figure 2. The three main components of the system are: the pressure...

Petroleum distribution in the Montney hybrid play: Source, carrier bed, and structural controls

Tristan Euzen, Neil Watson, Martin Fowler, Andy Mort, and Thomas F. Moslow

AAPG Bulletin

... a range of nearly 10 MPa, with pressure dropping below the hydrostatic gradient and no apparent relationship to elevation or depth. These data points...