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Tight sandstone gas accumulation mechanism and development models [PDF]
Petroleum Science, 2015 Tight sandstone gas serves as an important unconventional hydrocarbon resource, and outstanding results have been obtained through its discovery both in China and abroad given its great resource potential. However, heated debates and gaps still remain regarding classification standards of tight sandstone gas, and critical controlling factors ...
Zhuo Li, Fu-Jie Jiang, Luo-Fu Liu
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Models for Saturation of the Tight Gas Sandstone Reservoir
Petroleum Science and Technology, 2014The conventional model of formation saturation is restricted in well logging interpretation of tight gas sandstone because it is difficult to eliminate the influences of abrupt change of mineral component content. This paper studied the Triassic Xujiahe formation located in northeast Sichuan Basin, which has large variation of carbonate content between
L. Yuan, L. Sima, S. Wu
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Acidizing Treatments for Tight Gas Sandstone Reservoirs
International Petroleum Technology Conference, 2009This 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 +3 more
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Microcrack Permeability in Tight Gas Sandstone
Society of Petroleum Engineers Journal, 1983Abstract 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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Gas recovery potential of sandstones from tight gas reservoirs
International Journal of Rock Mechanics and Mining Sciences, 2014Abstract The aim of our experimental study is to characterize experimentally the petro-physical properties of a set of sandstones originating from different depths from a single tight gas field, in order to improve our knowledge on their gas recovery potential. The initial characterization of these sandstones is performed in the dry state, and in the
Duan, Z. +5 more
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A gas detection factor of tight sandstones and its application
Global Meeting Abstracts, 2011The exploration and development of tight-gas sandstone reservoirs have been paid more and more attention in recent years. However, it is difficult to identify them due to the low porosity and the slight change of geophysical characteristics caused by the change of oil and gas saturation.
Ma Zhong-gao +2 more
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Pervasive Tight-gas Sandstone Reservoirs: An Overview
2008The 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
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Acidizing flowback optimization for tight sandstone gas reservoirs
Journal of Natural Gas Science and Engineering, 2015Abstract 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 +3 more
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Imaging tight gas sandstones in the East Texas Basin
First Break, 2008Low porosity (tight) gas sands contain important commercial reserves but, unfortunately, are difficult to image seismically with the quality needed to drive an effective drilling programme. These reservoirs typically have a small contrast in acoustic impedance relative to the encasing shales which results in a subtle seismic signature.
R. Harris, J. O‘Brien
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