Results 211 to 220 of about 20,000 (235)

Damage Mechanism of Drilling Fluid on Tight Sandstone Gas Layers

SPWLA 64th Annual Symposium Transactions, 2023
The evaluation of the degree of damage caused by drilling fluid to formation damage is an important work in reservoir protection, and it is also of great significance to oil and gas production. This paper explores the degree of damage caused by drilling fluid to formation damage under high-temperature and high-pressure conditions.
Jin Dai, Guangzhi Liao, Feng Wu
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Models for Saturation of the Tight Gas Sandstone Reservoir

Petroleum Science and Technology, 2014
The 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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Drainage Efficiency in Naturally Fractured Tight Gas Sandstone Reservoirs

SPE Gas Technology Symposium, 1998
Abstract Modeling of the Mesaverde Formation in the San Juan Basin, northwestern New Mexico, shows the importance of using realistic drainage patterns in a naturally fractured reservoir. Fractures not only enhance the overall porosity and permeability of these reservoirs, but fractures also create significant ...
H. Harstad, L.W. Teufel, J.C. Lorenz
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Quantifying tight-gas sandstone permeability via critical path analysis

Advances in Water Resources, 2016
Abstract Rock permeability has been actively investigated over the past several decades by the geosciences community. However, its accurate estimation still presents significant technical challenges, particularly in spatially complex rocks. In this short communication, we apply critical path analysis (CPA) to estimate permeability in porous rocks ...
Behzad Ghanbarian, Carlos Torres-Verdín, Todd H. Skaggs   +2 more
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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.
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Characterization and Simulation of Naturally Fractured Tight Gas Sandstone Reservoirs

SPE Annual Technical Conference and Exhibition, 1995
Abstract Significant gas reserves are present in low-permeability sandstones of the Frontier Formation in the Green River Basin, Wyoming. Successful exploitation of these reservoirs requires an understanding of the characteristics and fluid-flow response of the regional natural fracture system that controls reservoir productivity ...
Hugo Harstad, Lawrence Teufel, John Lorenz   +2 more
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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
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Tight gas sandstones rock typing

2022
Ali Kadkhodaie, Rahim Kadkhodaie
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Drainage Efficiency in Naturally Fractured Tight Sandstone Gas Reservoirs

Journal of Petroleum Technology, 1998
This article is a synopsis of paper SPE 39974, "Drainage Efficiency in Naturally Fractured Tight Gas Sandstone Reservoirs," by H. Harstad, SPE, and L.W. Teufel, SPE, New Mexico Tech, and J.C. Lorenz, SPE, Sandia Natl. Laboratories, originally presented at the 1998 SPE Gas Technology Symposium, Calgary, 15-18 March.
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Geologic and Engineering Analysis of Blanket-Geometry Tight Gas Sandstones

SPE/DOE Low Permeability Gas Reservoirs Symposium, 1983
ABSTRACT A comparative survey of over 30 blanket-geometry tight gas sandstones in 16 sedimentary basins was prepared for the Gas Research Institute. For each stratigraphic unit a uniform set of information was obtained on general attributes, economic factors, geologic parameters of the basin and the formation, reservoir engineering data,
R. J. Finley, P. A. O'Shea
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