Results 131 to 140 of about 466,826 (265)

Similarities and Differences between Marine and Continental Shale Gas [PDF]

open access: yesActa Geologica Sinica - English Edition, 2015
Song XUE   +5 more
openaire   +1 more source

The influence of heterogeneity of lacustrine shale facies on rock mechanical properties and brittleness: a case study of Jurassic lacustrine shale reservoirs in Northeast Sichuan Basin

open access: yesFrontiers in Earth Science
IntroductionDue to the significant increase in plasticity under conditions of high temperature and pressure, the existing single brittleness evaluation methods prove inadequate for accurately characterizing the compressibility of deep shale in ...
Haibo Zhao   +12 more
doaj   +1 more source

Annual report of research progress [PDF]

open access: yes, 1964
The mineral and human resources of a state and/or nation are to a large extent the basis of a strong and flourishing economy. In Alaska this is currently illustrated by the activities of the oil and gas industry and the resulting large sums of money that
MIRL
core   +3 more sources

Sedimentology of the Triassic–Jurassic boundary beds in Pinhay Bay (Devon, SW England) [PDF]

open access: yes, 2001
Sedimentology of the Triassic–Jurassic boundary beds in Pinhay Bay(Devon, SW England). Proceedings of the Geologists’ Association, 112. 349–360. New exposures in Pinhay Bay (SE Devon) of the White Lias (Langport Member of the Lilstock Formation)and ...
Wignall, P.B.
core   +1 more source

Gas occurrence characteristics in marine-continental transitional shale from Shan23 sub-member shale in the Ordos Basin: Implications for shale gas production

open access: yesNatural Gas Industry B
Pore structure characteristics, gas content, and micro-scale gas occurrence mechanisms were investigated in the Shan23 sub-member marine-continental transitional shale of the southeastern margin of the Ordos Basin using scanning electron microscope images, low-temperature N2/CO2 adsorption and high-pressure mercury intrusion, methane isothermal ...
Guangyin Cai   +8 more
openaire   +2 more sources

Experimental Study of the Fluid Contents and Organic/Inorganic Hydrocarbon Saturations, Porosities, and Permeabilities of Clay-Rich Shale

open access: yesEnergies
Unlike conventional reservoirs, shale is particularly complex in its mineral composition. As typical components in shale reservoirs, clay and organic matter have different pore structures and strong interactions with fluids, resulting in complex fluid ...
Fenglan Wang   +5 more
doaj   +1 more source

The comprehensive control of mechanical stratigraphy and faults on fracture distribution in continental shale reservoirs

open access: yesResults in Engineering
This study focuses on continental shale oil reservoirs, an essential component of the global energy portfolio, with the aim of investigating the controlling factors of fracture occurrence and characteristics, emphasizing the integrated effects of in-situ
Xiaocen Su   +8 more
doaj   +1 more source

Prediction of formation abrasiveness under the action of a PDC bit based on the fractal dimension of a rock surface

open access: yesScientific Reports
During rock drilling, a drill bit will wear as it breaks the rock. However, there is no uniform grading standard for rock abrasiveness. To solve this problem, the wear mechanisms of a polycrystalline diamond compact (PDC) bit and the formation it is ...
Changhao Wang   +6 more
doaj   +1 more source

Pore Pressure Prediction for High-Pressure Tight Sandstone in the Huizhou Sag, Pearl River Mouth Basin, China: A Machine Learning-Based Approach

open access: yesJournal of Marine Science and Engineering
A growing number of large data sets have created challenges for the oil and gas industry in predicting reservoir parameters and assessing well productivity through efficient and cost-effective techniques.
Jin Feng   +9 more
doaj   +1 more source

The United States Magnetotelluric Array and the National Impedance Map

open access: yesReviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract The United States Magnetotelluric Array (USMTArray) data set, collected in the years 2006–2024, consists of more than 1,700 long‐period magnetotelluric stations covering the entirety of the contiguous United States on a quasi‐regular 70 km grid.
Anna Kelbert   +7 more
wiley   +1 more source

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