Development and Evaluation of Multiphase Closure Models used in the Simulation of Unconventional Wellbore Dynamics

Travis Mitchell, Bryce Hill, Mahshid Firouzi, Christopher Leonardi

Unconventional Resources Technology Conference (URTEC)

... of certain conventional mechanistic models for the prediction of wellbore pressure gradients in a coal seam gas (CSG) well. To allow the desorption...

Prediction of Natural Gas Composition in Ultradeep Sandstone Reservoirs (1)

COLIN BARKER and NICHOLAS E. TAKACH

AAPG Bulletin

... depth trend from oil to gas in deep basins. Most calculations assume a normal (i.e., hydrostatic) pressure gradient of 0.47 psi/ft (Table 2...

Geologic and Oil-Field Controls on Earthquakes in the War-Wink Field, Delaware Basin: (Reprinted from WTGS September 1991, V. 31, No. 1)

Mark R. Baker, Diane I. Doser, Ming Luo

West Texas Geological Society

... are consistently verified to be near lithostatic by drilling mud densities, drill stem tests, and well log analyses. High lateral pressure gradients within...

Evolution of overpressure in the Wufeng-Longmaxi shale reservoirs of the Jiaoshiba area, Sichuan Basin, southwestern China: Implications for shale gas preservation

Tao Luo, Xiaowen Guo, Zhiliang He, Kamaldeen O. Omosanya, Ze Tao, and Sheng He

AAPG Bulletin

... Wufeng Formation and lower Silurian Longmaxi Formation. The pressure coefficients, the ratio of the actual pore pressure to the normal hydrostatic...

Is There a Basin-Centered Gas Accumulation in Upper Cretaceous Rocks in the Bighorn Basin?

Ronald C. Johnson, Thomas M. Finn

Wyoming Geological Association

...-in pressures for this test indicate an FPG of 0.44, or roughly normal pressure North Flank of Grass Creek anticline - In 1979, Santa Fe Energy drilled the 1-29...

Mesozoic siliciclastic reservoirs and petroleum system in the Rub' Al-Khali basin, Saudi Arabia

S. A. Stewart, C. T. Reid, N. P. Hooker, and O. W. Kharouf

AAPG Bulletin

... Formation are at hydrostatic pressure (Bakiewicz et al., 1982). Drilling mud weights indicate that slight overpressure—tens to hundreds of pounds per...

Principles of Gas Occurrence, San Juan Basin

Caswell Silver

AAPG Special Volumes

... near outcrop far from spillpoint approaches configuration of structural contours and values of hydrostatic conditions. Note change in pressure...

Hydrogeologic Units in Cataract Canyon and Vicinity—Paradox Basin, Utah

Carlos D. Paiz, John W. Thackston

Four Corners Geological Society

... abnormally low fluid pressures and Potentiometric levels compared to the hydrostatic pressure gradient. This supports the designation of the Honaker...

Time of Formation of Gas Fields of the Outer Zone of the Cis-Carpathian Foreland Downwarp

A. K. Ivanov

Petroleum Geology: A Digest of Russian Literature

... of anomalously high pressure in a trap to the normal hydrostatic pressure: t = b / l · ln H o - h / H - h , where t is the time...

Deciphering Dynamic Fracture Systems through Multiple Monitoring Wells with Permanent Downhole Gauges in the Midland Basin

Yula Tang, Baosheng Liang, Leif Larsen

Unconventional Resources Technology Conference (URTEC)

... data from the observation wells, results from numerical models, and assumptions about hydrostatic gradients. For Layers 7, 6, 4 and 2 the trends in late...

Remote Monitoring of Stage Performance from Zonal Returns of Nanoparticle Tracers Integrated in Shaped Charges Liners to Surface with Flowback

Ting Roy, Kamel Ben Naceur, Casey Harrison, James Shelton, Aaron Hall, Holden Harrison, Ian Henkes, Kenny Jones, Otman Algadi, Hifzi Ardic, Christian Wilkinson, Indranil Roy

Unconventional Resources Technology Conference (URTEC)

... through the perforations (ΔPperf) Phydrostatic is the hydrostatic pressure at the relevant depth (HYDRO), and Pfluid_friction is the pressure drop...

Reducing Well Construction Costs through Field Application of New Unconventional Lightweight Cementing Solutions - Multiple Case Histories in the Permian Basin

Roderick Pernites, Marvin Montgomery, Dan Fu, Felipe Padilla

Unconventional Resources Technology Conference (URTEC)

...-effective non-beaded lightweight cementing technology will be described. The new lightweight has a lower hydrostatic pressure during pumping, hence...

The Relationship Between Fracture Treatment Shut-Ins, Reservoir Permeability and Production Responses

J. D. Harkrider, W. W. Aud, J. O. Whitting

Wyoming Geological Association

... pressure can vary from sub-normal (0.15 psi/ft) in depleted areas to normal (0.43 psi/ft - virgin) gradients. Table 4 is a summary of the study and shows...

Measurement; Monitoring & Verification (MMV) Framework to Enhance Sustainability of Decarbonization Plan in the North Sea Area

Dwandari Ralanarko, Wulan Sari Puspita Ningrum, Hazred Fathan, Annisa Mutiara Badri, Muhammad Iqbal Maulana, Iqbal Daffa Pradana, Fikri Rum Darmawan, Ildrem Syafri, Edi Sunardi, Billy Gumilar Adhiperdana

Carbon Capture, Utilization and Storage (CCUS)

... CCS Project, the primary focus lies in assessing the hydrostatic or normal gradient conditions. The analysis begins with a thorough examination...

Using Traditional Methods to Predict Pore Pressure in Devonian Black Shale Basins of North East British Columbia

Sam Green, Joel Loeffler, Shona Clarke, David Thurston

Unconventional Resources Technology Conference (URTEC)

... Reference Trend (PRT) in-lieu of a Normal Compaction Trend (NCT) as used in conventional, or traditional, pore pressure prediction. The PRT is not linked...

Subtle Seals and Fluid-flow Barriers in Carbonate Rocks

Edward B. Coalson, Steven M. Goolsby, Mark H. Franklin

Rocky Mountain Association of Geologists

... porosities exceeding those in the reservoir. The common denominator of such seals is small pore-throat size and consequent high breakthrough pressure, i.e....

Abstract: A Research Project Documenting the Pressure History of an Overpressured Basin - Application to Deep Water Pressure, by R. E. Swarbrick; #90923 (1999)

Search and Discovery.com

Innovative Analysis of Treatment Well Data Determines Cluster Efficiency, Assesses Fracture Complexity, and Provides Fracture Geometry in Unconventional Reservoirs

Lucas Wesley Bazan, Bruce Roman Meyer, Van Phi Tran

Unconventional Resources Technology Conference (URTEC)

... and ISIP gradients. These characteristic pressure decay signatures are routinely seen in horizontal unconventional shale diagnostic fracture injection...

The Golden Zone: Its the Temperature that Counts

Halfdan Carstens

GEO ExPro Magazine

... all sedimentary basins the pore pressure exceeds the hydrostatic pressure (pressure of the water column) beneath a certain depth. The depth at which...

Hydrate Stability Zone Permanence along Dynamic Louisiana Offshore

Allen Lowrie , Michael D. Max , Rhett Hamiter , Ian Lerche , Elchin Bagirov

GCAGS Transactions

... without re-establishing equilibrium, the hydrate base rises as the hydrate thins and a lower hydrostatic pressure maintains hydrate equilibrium. Thus...

Pore Pressure and Elastic Moduli Estimation Considerations for a Simplified Geomechanical Model for Unconventional Plays. A case study in the Vaca Muerta Formation

Sergio Cuervo, Ezequiel Lombardo

Unconventional Resources Technology Conference (URTEC)

... and Initial Considerations Pore Pressure Hydrostatic pore pressure is generated in all the sedimentary basins as a consequence of the pressure exerted...

Skempton’s poroelastic relaxation: The mechanism that accounts for the distribution of pore pressure and exhumation-related fractures in black shale of the Appalachian Basin

Terry Engelder, and Rose-Anna Behr

AAPG Bulletin

... fluid pressure is the mechanism leading to joint propagation. It is possible that a slow joint-normal stretching is a factor in coupling tectonic stress...

Synsedimentary Fracturing, Fluid Migration, and Subaqueous Mass Wasting: Intrastratal Microfractured Zones in Laminated Diatomaceous Sediments, Miocene Monterey Formation, California, U.S.A.

Kurt A. Grimm , Daniel L. Orange

Journal of Sedimentary Research (SEPM)

.... 1990; cf. Lindsay-Griffin et al. 1990). Pore-fluid pressure was nearly hydrostatic, and the sediments were able to bear overburden stress without failure...

Resolution of Williston Basin Oil System Paradoxes Through Basin Modelling

Jean Burrus, Kirk Osadetz, Sylvie Wolf, Brigitte Doligez, Kees Visser, David Dearborn

Williston Basin Symposium

...; Burrus et al., 1991). Individual program modules simulate sedimentation and thermal history, normal compaction, pore pressure evolution...

Paleohydrogeological and thermal events recorded by fluid inclusions and stable isotopes of diagenetic minerals in Lower Cretaceous sandstones, offshore Nova Scotia, Canada

Atika Karim, Jacob J. Hanley, Georgia Pe-Piper, David J. W. Piper

AAPG Bulletin

... for the maximum trapping temperature (Ttr max); the minimum possible fluid pressure is hydrostatic. To evaluate conditions at the time of entrapment...