Influence of Oil and Gas State on Oil Movability and Sweet Spot Distribution in Tight Oil Reservoirs from the Perspective of Capillary Force, #42420 (2019).

Yaohua Li, Yan Song,

Search and Discovery.com

...-free’, and the solution gas volume ratio in the liquid phase, ‘yi-solution’, are proposed to modify the vapor pressure in the Kelvin capillary force...

ABSTRACT: Cost-Effective Integration of Geologic and Petrophysical Characterization with Material Balance and Decline CurveAnalysis to Develop a 3-D Reservoir Model for PC-based Reservoir; #90013 (2003)

Saibal Bhattacharya, Alan P. Byrnes, Paul M. Gerlach

Search and Discovery.com

... from a regional Mississippian rock-catalog were used to develop relative permeability and capillary pressure curves for porosity-permeability pairs...

Derivation of Relative Permeability Curves from Capillary Pressure Curves for Tight Sandstone Reservoir Based on Fractal Theory

Xiuyu Wang, Xiaoqiu Wang, Jianfu Wang, Yu Pu, Shenglai Yang

Unconventional Resources Technology Conference (URTEC)

... can be simplified as: Sw = r 3− D rmax (7) 3− D According to Young-Laplace law for capillary pressure [5]: Pc = 2σ cos θ r (8) Larger pore...

Degassing Water Around Air Bubbles Entrapped in the Vadose Zone as a Mechanism of Carbonate Precipitation--A Hypothesis

Michael Zilberbrand

Journal of Sedimentary Research (SEPM)

... (Patm), capillary pressure (Pc) and a pressure (gh) of water head (h) above the bubble. At typical pore radius of 0.1-1 mm the difference between...

Abstract: Analysis of Unconventional Reservoirs using New and Existing NMR Methods; #90172 (2014)

Derrick P. Green, Dragan Veselinovic

Search and Discovery.com

... equation (3). This procedure is repeated 7-10 times to fully define the capillary pressure curve. Pc (r )  1 2 2 2   (r1  r ) 2 (3) where...

Abstract: Regional Petrophysical Properties of Mesaverde Low-permeability Sandstones, by Byrnes, Alan P., John C. Webb, and Robert M. Cluff; #90071 (2007)

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Capillary Pressure Techniques: Application to Exploration and Development Geology

Jeffrey B. Jennings

AAPG Bulletin

... (1966), for calculating feet of oil column above the free-water level: [EQUATION] where H = height of oil column (ft), Pc = capillary pressure (psi...

Gas Transport and Sorption Processes in Coals and Shales: New Insights and Concepts from Laboratory Experiments; #110127 (2010)

Bernhard M. Krooss, Alexandra Amann, Yves Gensterblum, Fengshuang Han, Ralf Littke, Philipp Weniger

Search and Discovery.com

... with the initially high pressure difference. After a certain time, breakthrough of gas takes place; thus capillary pressure will decrease. This Pc is still high...

Abstract: A Method of Integrating Capillary Pressure and Relative Permeability Data into a Fullfield Numerical Simulation of Main Body "B" Reservoir, Elk Hills Field, California, by T. Hampton and S. Singh; #90911 (2000)

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Production-Induced Capillary Breakdown of Reservoir Barriers, #41133 (2013)

Alton Brown

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... in production. Pc Pc Producing Reservoir Compartment Capillary pressure sufficient for pseudo-steady flow Fault-rock Barrier No Production Figure 13. Barrier...

Abstract: Petrophysical Rock Types, Pore System Parameters and Capillary Pressures Prediction in Multimodal and Heterogeneous Reservoirs; #91204 (2023)

Samy Serageldin

Search and Discovery.com

... were defined based on Mercury Injection Capillary Pressure (MICP) measurements and Thomeer parameterization. The definition preserves the pore system...

Pore Geometry of Sedimentary Rocks Elementary Capillary Theory

Perry O. Roehl

Bulletin of South Texas Geological Society

... be put forth so as to develop proper relations3: First, capillary pressure, Pc, is defined as the difference between opposing pressures, (1) P c...

Abstract: Facies-Based Rock Typing in Complex Carbonates; #90318 (2018)

Moustafa Dernaika

Search and Discovery.com

... trend. Rock types were defined along the porosity-permeability trends, and showed strong link to the capillary pressure (Pc) and pore-throat size...

Abstract: Characteristics of Carbonate Rock Types in Different Reservoirs in the Middle East; #90319 (2018)

Moustafa R. Dernaika, Bashar Mansour, Osama AlJallad

Search and Discovery.com

... trend. Rock types were defined on the texture-based poroperm trends, and showed strong link to the capillary pressure (Pc) and pore-throat size...

Water and Oil Relative Permeability of Middle Bakken Formation: Experiments and Numerical Modeling

Younki Cho, Ilkay Uzun, Erdinc Eker, Xiaolong Yin, Hossein Kazemi

Unconventional Resources Technology Conference (URTEC)

... is the basis for all analyses, it relates the saturation levels, at each point and time, to capillary pressure, the ratio of fluid viscosities, flow rates...

Impact of Light Component Stripping During CO2 Injection in Bakken Formation

Vanessa A. Fai-Yengo, Hamid Rahnema, Masoud Alfi

Unconventional Resources Technology Conference (URTEC)

.... Interestingly, capillary pressure has negligible effect on oil recovery in these two cases ((Pc×10 and Pc×100), this observation can be interpreted in this way...

Well Productivity Enhancement by Applying Nanofluids for Wettability Alteration

Saurabh Naik, Gabriel Malgaresi, Zhenjiang You, Pavel Bedrikovetsky

Australian Petroleum Production & Exploration Association (APPEA) Journal

... and z is the compressibility factor. The capillary pressure pc is the difference between the gas pressure and the water pressure. It is also...

ABSTRACT: The Role of Capillary Forces on the Strength of Rock: The Fracture Mechanics Approach; #90122 (2011)

Alexander Y. Rozhko

Search and Discovery.com

... the elliptical crack is partially saturated with two immiscible fluids, with the capillary pressure difference calculated as follows pc  pnw  pwe   R...

Integrated Petrophysical Methods for the Analysis of Reservoir Microarchitecture—a Kansas Chester Sandstone Case Study

John H. Doveton

Kansas Geological Society

... hypothetical parameters or, preferably, from core measurements of porosity, permeability, and capillary pressure. Capillary pressure curves...

Estimation of Recovery Efficiency by Visual Observation of Pore Systems in Reservoir Rocks: DISCUSSION

Kinji Magara

CSPG Bulletin

... is apparently ignored in their method of evaluating the recovery efficiency. Berg (1975) showed that the capillary pressure Pc is given as: where...

Net Pay Cutoffs from Capillary Pressure; #120008 (2009)

Andy May

Search and Discovery.com

...Net Pay Cutoffs from Capillary Pressure; #120008 (2009) Andy May Net Pay Cutoffs from Capillary Pressure* Andy May1 Search and Discovery Article...

Carbonate rock characterization and modeling: Capillary pressure and permeability in multimodal rocksA look beyond sample specific heterogeneity

Iulian N. Hulea, Chris A. Nicholls

AAPG Bulletin

... at the bottom), (B) porosity-permeability crossplot (upper left), (C) capillary pressure (Pc) data (upper center) and, (D) pore-throat size (Rp) distributions...

ABSTRACT: Capillary Pressures--Their Interpretation and Use, by Jeffrey B. Jennings; #91033 (2010)

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The Implementation of Underground CO2 Sequestration: Analysis of Caprock Leakage on the Todilto Shale of San Juan Basin

Irma Primasari, William Ampomah, Her Yuan Chen, Jiawei Tu, Dung Bui, Dana Ulmer-Scholle, Shaoping Chu

Carbon Capture, Utilization and Storage (CCUS)

...), the entry capillary pressure shale has been calculated as 125 psi using a radius pore of 6×10-5m. Yet, Pc at Entrada Sandstone, calculated as 52 psi...

Properties Upscaling in Porosity Systems with Under-resolved Features Using Image-Based Rock Physics

Shawn Shuang Zhang, Alan P. Byrnes, James J. Howard

Unconventional Resources Technology Conference (URTEC)

... provided key rock properties including porosity (φ), absolute permeability (K), capillary pressure (Pc), and water saturation (Sw). Although core analysis...