Results 251 to 260 of about 30,179 (297)

Effect of Chelating Agents on Tight Sandstone Formation Mineralogy During Sandstone Acidizing

Petrophysics – The SPWLA Journal of Formation Evaluation and Reservoir Description, 2023
Dissolution of the wellbore damage is the main target of sandstone acidizing. The presence of minerals like clays, feldspar, zeolites, and alumino-silicates makes acidizing a challenging task because they may form undesired products (precipitates) when reacted with mud acid.
Mian Umer Shafiq, Hisham Ben Mahmud, Momna Khan, Sophia Nawaz Gishkori, Lei Wang, Maryam Jamil   +5 more
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Fluid Flow Modeling in Tight Carboniferous Sandstone

Proceedings, 2013
Permeability of rock samples was the object of analysis. In the standard approach permeability values are determined from the laboratory measurements using permeameters. There are distinct limitations for used equipment for such measurements. In the presented case rock permeability was calculated by Computational Fluid Dynamics (CFD).
P. Krakowska, P. Madejski, J. Jarzyna
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Pore-throat sizes in sandstones, tight sandstones, and shales

AAPG Bulletin, 2009
Pore-throat sizes in siliciclastic rocks form a continuum from the submillimeter to the nanometer scale. That continuum is documented in this article using previously published data on the pore and pore-throat sizes of conventional reservoir rocks, tight-gas sandstones, and shales.
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Anisotropic Rock Physics Modeling for Tight Sandstone

Proceedings, 2015
One distinguishing feature of low-porosity and low-permeability sandstones is the departure of the behavior of their elastic properties from that of general porous and permeable sands. This paper put forward the method to integrate rock physics model in tight sandstones due to the properties of developed cracks and its effect on tight sand.
Q. Liu, X.Y. Yin, C. Li
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Acidizing Treatments for Tight Gas Sandstone Reservoirs

International Petroleum Technology Conference, 2009
This reference is for an abstract only. A full paper was not submitted for this conference. Abstract Stimulation of tight gas sandstone reservoirs is a challenge due to many variables contributed into acidizing efficiency such acids type, concentration, volume, stages, injection rate, reservoir ...
Hamoud A. Al-Anazi, Wisam J. Assiri, Bandar H. Al-Malki, Adnan A. Al-Kanaan   +3 more
openaire   +1 more source

Microcrack Permeability in Tight Gas Sandstone

Society of Petroleum Engineers Journal, 1983
Abstract A model of stress-dependent permeability was developed on the basis of flow through cracks. The compliance of the cracks is controlled by elastic deformation of a Gaussian distribution of surface asperities, indented into the opposing crack face.
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Fracability Evaluation Method for Tight Sandstone Oil Reservoirs

Natural Resources Research, 2021
As typical low-permeability unconventional fossil resources, tight sandstone oil cannot be exploited economically without effective hydraulic fracturing. Fracability is a term commonly used as a decision indicator to select candidate layers for hydraulic fracturing in unconventional reservoirs.
Wenjun Xu, Jinzhou Zhao, Jianguo Xu
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Pore-throat sizes in sandstones, tight sandstones, and shales: Discussion

AAPG Bulletin, 2011
Wayne K. Camp Nelson (2009) prepared a nice compilation describing the wide range of pore-throat sizes that span a continuum from conventional sandstone reservoirs to unconventional tight-gas siliciclastic reservoirs and shale seals. In this article, Nelson (2009) proposes a new and rather unique definition for unconventional reservoirs (including ...
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Acidizing flowback optimization for tight sandstone gas reservoirs

Journal of Natural Gas Science and Engineering, 2015
Abstract The physical properties of Sichuan tight sandstone formations include low porosity and low permeability. Fortunately, micro-fractures are well developed in this area, and the development of a reservoir is thus possible. Acidification can repair reservoir damage and improve single-well production; however, gas well production can change after
Jinghong Hu, Hong Liu, Dan Wu, Junjing Zhang   +3 more
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Pervasive Tight-gas Sandstone Reservoirs: An Overview

2008
The objectives of this chapter are threefold: (1) to provide a historical perspective on considerations of pervasive tight-gas accumulations, (2) to provide some observations on the present understanding of these accumulations, and (3) to anticipate where the industry is headed in the future.
Lawrence D. Meckel, M. Ray Thomasson
openaire   +1 more source