Results 211 to 220 of about 353,183 (265)

Disproportionate Permeability Reduction is not a Panacea

SPE European Formation Damage Conference, 1997
Abstract The paper discusses experimental and theoretical studies on the effects of disproportionate permeability reduction (DPR), i.e., the ability to reduce relative permeability to water more than to oil. The theoretical part discusses DPR effects by simple analytical arguments, supported by simulations.
Arne Stavland, Steinar Ekrann, K. O. Hettervik, S. R. Jakobsen, Terje Schmidt, Birgitte Schilling   +5 more
openaire   +1 more source

Reduction of Permeability in Granite at Elevated Temperatures

Science, 1994
The addition of hydrothermal fluids to heated, intact granite leads to permeability reductions in the temperature range of 300° to 500°C, with the rate of change generally increasing with increasing temperature. The addition of gouge enhances the rate of permeability reduction because of the greater reactivity of the fine material.
D E, Moore, D A, Lockner, J D, Byerlee
openaire   +2 more sources

A New Approach to Permeability Reduction

Journal of Petroleum Technology, 1975
Introduction There are many published schemes for reducing the permeability of reservoir rock. The method described here permeability of reservoir rock. The method described here involves plugging interpore connections with colloidal particles. The novelty of this method is the chemistry of particles. The novelty of
C.T. Presley, P.A. Argabright, R.E. Smith, B.L. Phillips   +3 more
openaire   +1 more source

Quantifying the Permeability Reduction of Biogrouted Rock Fracture

Rock Mechanics and Rock Engineering, 2018
Uncontrollable seepage is one of the commonly encountered disasters in underground excavation projects (Gell and Wittke 1986; Gmünder and Arn 1993; Dhawan et al. 2004; Min et al. 2009; Walsh et al. 2013). Cementitious or chemical grouts are often used for seepage control by sealing the rock joints in the areas, where caverns or tunnels are going to be ...
Wu, Chuangzhou, Chu, Jian, Wu, Shifan, Guo, Wei   +3 more
openaire   +2 more sources

Reduction in Permeability With Overburden Pressure

Journal of Petroleum Technology, 1952
Oil bearing rocks, usually found at depths of 2,000 to 10,000'Ft, areelastically deformed by overburden pressure. Although the change in porositywith pressure in a number of example rocks has been shown to be small, it wasthought that overburden pressure might have a significant effect onpermeability.
I. Fatt, D.H. Davis
openaire   +1 more source

Mechanistic Study of Disproportionate Permeability Reduction

Proceedings of SPE/DOE Improved Oil Recovery Symposium, 1998
Abstract It is a common observation that gels in a porous media reduce the permeability to water more than that of oil. Core floods on sand packs using well defined model media has been carried Out to elucidate the matter.
S. Nilsson, A. Stavland, H.C. Jonsbraten
openaire   +1 more source

Permeability Reduction by Treatment With KUSP1 Biopolymer

SPE Journal, 2000
Summary The application of KUSP1 biopolymer for use in permeability reduction treatments of oil reservoirs was investigated. KUSP1 is a nontoxic polysaccharide that is produced by a bacterium. Alkaline solutions of KUSP1 have low viscosities and can be gelled by different methods. Three methods were examined to gel KUSP1 in porous media.
C. S. McCool, A. K. Shaw, Amitabh Singh, Saibal Bhattacharya, D. W. Green, G. P. Willhite   +5 more
openaire   +1 more source

Optimizing Disproportionate Permeability Reduction

Proceedings of SPE/DOE Symposium on Improved Oil Recovery, 2006
Abstract An idealistic goal of water shutoff technology is identifying materials that can be injected into any production well (without zone isolation) and will substantially reduce the water productivity without significantly impairing hydrocarbon productivity.
openaire   +1 more source

Biomediated Permeability Reduction of Saturated Sands

Journal of Geotechnical and Geoenvironmental Engineering, 2016
AbstractNew, alternative in situ ground improvement techniques are necessary to address increased performance demands and growing environmental concerns of traditional grouting methods. To date, the controlled use of microbiological processes has demonstrated promise in the ability of microbes and their activity to address this need.
C. J. Proto, J. T. DeJong, D. C. Nelson
openaire   +1 more source

Microfluidic Study of Polymer Permeability Reduction Mechanisms

SPE Annual Technical Conference and Exhibition, 2022
Abstract Polymer solutions see broad applications in hydraulic fracturing, enhanced oil recovery, conformance control, and groundwater remediation. However, due to the high viscosity of polymer solutions, flows after polymer injection are often subjected to significant pressure build-up, the mechanism of which is not well studied ...
Shaken Kenzhekhanov, Xiaolong Yin, Iskander Gussenov   +2 more
openaire   +1 more source