Results 211 to 220 of about 48,645 (253)

Imaging tight gas sandstones in the East Texas Basin

First Break, 2008
Low 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
openaire   +1 more source

A gas detection factor of tight sandstones and its application

Global Meeting Abstracts, 2011
The 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, Zhang Jin-qiang, Li Cheng-cheng   +2 more
openaire   +1 more source

Acoustic measures of partial gas saturation in tight sandstones

Journal of Geophysical Research: Solid Earth, 1984
The acoustic properties of tight sandstones are very sensitive to partial gas/water saturation. Measurements at 5 kHz show that compressional velocity drops sharply with undersaturation. Extensional and shear losses at 5 kHz are large in both fully and partially saturated sands. The shear loss Qs−1 declines linearly with increasing gas content.
openaire   +1 more source

Wavelet Transform for Fracture Diagnostics in Tight Gas Sandstone

SPE Conference at Oman Petroleum & Energy Show
Abstract Accurately determining fracture closure pressure is essential for optimizing hydraulic fracture treatments in gas reservoirs, especially in tight sandstone formations with low permeability. Traditional methods, like the G-function, estimate closure pressure from pressure decline during flowback, but they often rely on ...
K. Alsiyabi, M. H. Al-Aamri, A. Kazemi, G. Nejad   +3 more
openaire   +1 more source

Tight gas sandstones rock typing

2022
Ali Kadkhodaie, Rahim Kadkhodaie
openaire   +1 more source

Dynamic Instability Characteristics of Sandstone-Mudstone Combinations During Gas Drilling in Tight Sandstone Gas Reservoirs

SPE Journal
Summary Gas drilling utilizes compressed nitrogen rather than mud as the drilling fluid to fundamentally eliminate reservoir damage, making it a highly promising technology for tight sandstone gas reservoir development. However, wellbore instability remains a significant challenge, particularly in interbedded sandstone-mudstone ...
Hongtao Li, Hao Wang, Gao Li, Yanmin Wang, Xiyu Kuang, Junjie Guo   +5 more
openaire   +2 more sources

Experimental Study on Dynamic and Static Rock Mechanical Properties of Tight Sandstone Gas Reservoir

Chemistry and technology of fuels and oils, 2023
Shiqi Yin, Huaping Mei, Xing-Chun Xu
semanticscholar   +1 more source

Geological conditions and controls on accumulation of tight sandstone gas, deep part of the Shengbei sub-sag, Turpan-Hami basin, NW China

Marine and Petroleum Geology, 2023
Weiming Wang, Ting Li, Dongsheng Xiao, Bo Wang, Yuzhong Yang, Yangchen Zhang, Weihao La, Jiang He   +7 more
semanticscholar   +1 more source

Pressure transient analysis for multi-stage fractured horizontal wells considering threshold pressure gradient and stress sensitivity in tight sandstone gas reservoirs

Gas Science and Engineering, 2023
S. Geng, Chengyong Li, Yao Li, Shuo Zhai, Tonghao Xu, Yufeng Gong, Min Jing   +6 more
semanticscholar   +1 more source

Reservoir Characterization of Tight Gas Sandstones

2022
openaire   +1 more source