Results 81 to 90 of about 30,400 (205)

The application of fractal dimension on capillary pressure curve to evaluate the tight sandstone [PDF]

open access: yes, 2017
The rock of gas tight reservoir is more heterogeneous than that of conventional sandstone reservoir and is more prone to water-blockage because of the invasion of operation fluid.
Guo, Chunhua   +4 more
core   +1 more source

Squirt flow in a tight sandstone: an interlaboratory study

open access: yesGeophysical Journal International
SUMMARY In the spirit of interlaboratory benchmarking of related techniques, we have re-examined the seismic-frequency mechanical properties of a low-porosity Wilkeson sandstone specimen tested in axial stress oscillation under water-saturated conditions by Pimienta et al.
Ógúnsàmi, Abdulwaheed   +3 more
openaire   +2 more sources

Binary pore structure and fractal characteristics of tight sandstone: A case study of Chang 7 Member of Triassic Yanchang Formation in Ordos Basin

open access: yesYouqi dizhi yu caishoulu
The pore structure characteristics of tight sandstone are of significance for the exploration and development of tight oil reservoirs. However, little attention is paid to the flow characteristics and influencing factors of different types of pores. This
WU Xiaobin   +6 more
doaj   +1 more source

Styles of underplating in the Marin Headlands Terrane, Franciscan Complex, California [PDF]

open access: yes, 2018
This is a pre-copy-editing, author-produced PDF of an article accepted for publication in The Geological Society of America Special Papers following peer review. The definitive publisher-authenticated version: "Regalla, C., Rowe, C., Harrichhausen, N.,
Harrichhausen, Nicholas   +4 more
core  

Experimental investigation of porosity and permeability change caused by salting out in tight sandstone gas reservoirs

open access: yesJournal of Natural Gas Geoscience, 2018
Salt precipitation and its induced problems are increasingly prominent with the development of deep and ultra-deep tight sandstone gas reservoirs with high salinity formation water.
Lijun You   +4 more
doaj   +1 more source

A method for calculating saturation in tight sandstone reservoirs based on the dual porosity model

open access: yesFrontiers in Earth Science
IntroductionWith the continuous development of exploration and development, tight sandstone reservoirs have become an essential field of oil and gas exploration.
Yi Xin   +16 more
doaj   +1 more source

Soil radium, soil gas radon and indoor radon empirical relationships to assist in post-closure impact assessment related to near-surface radioactive waste disposal [PDF]

open access: yes, 2009
Least squares (LS), Theil’s (TS) and weighted total least squares (WTLS) regression analysis methods are used to develop empirical relationships between radium in the ground, radon in soil and radon in dwellings to assist in the post-closure assessment ...
J.D. Appleton   +32 more
core   +4 more sources

Pre-Devonian stratigraphy and structure of the Prion Beach-Rocky Boat Inlet-Osmiridium Beach coastal section, southern Tasmania [PDF]

open access: yes, 1983
The pre-Devonian stratigraphy of the Prion Beach to Surprise Bay area is composed of four stratigraphic units. The oldest is a (?) Precambrian, slightly metamorphosed, massive dolomite.
Berry, RF, Harley, S
core   +2 more sources

Application of pre-stack elastic impedance inversion method based on VTI medium: A case of tight sandstone fractured reservoir in Xujiahe Formation, Western Sichuan Depression

open access: yesYouqicang pingjia yu kaifa, 2022
The tight sandstone reservoirs in Xujiahe Formation in Sichuan are rich in oil and gas, but highly heterogeneous. The tight sandstone fractured reservoirs of Xujiahe Formation in Western Sichuan Depression are characterized by heterogeneity.
HAN Lei   +4 more
doaj  

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