Results 81 to 90 of about 26,237 (314)

The albian-cenomanian boudary in the northern part of the Don-Medveditsa dislocations. Paper 1. The history of studying and the section descriptions [PDF]

Известия Саратовского университета. Новая серия: Серия Науки о Земле
The Albian-Cenomanian rocks compose a single complex of terrigenous deposits over the Volga Region. Delineation of the boundaries of the Cretaceous system units generally tends to cause difficulties, accounted for by rare finds of the fossils.
Pervushov, Evgeniy Mikhaylovich, Baraboshkin, Evgeniy Yurievich, Shelepov, Dmirtiy Aleksandrovich, Biryukov, Aleksei Vladimirovich   +3 more
doaj   +1 more source

A simple model for stress-induced anisotropic softening of weak sandstones

, 2012
[[abstract]]Weak sandstones possess deformational behaviors different from hard rocks; these phenomena, including shear dilation and softening of deformational moduli, are much more significant.
Huang, T.H., Weng, M.C, Hsieh, Y.M., Jeng, F.S.   +3 more
core  

Late Mississippian Sandstones of Illinois [PDF]

, 1962
Sandstones, one of the distinctive lithologies of the late Mississippian sediments of the Illinois Basin, constitute approximately one-fourth of the section.
Potter, Paul Edwin
core  

The impact of forced closure on proppant distribution of hydraulic fracturing in shale formations

Deep Underground Science and Engineering, EarlyView.
Research findings demonstrate that implementing forced closure within shale formations can remarkably mitigate proppant settlement, concurrently increasing the effective propped surface area from 29.74% to 38.68%. Abstract Forced closure is widely used in conventional oil and gas reservoirs to promote uniform proppant placement.
Tongxuan Gu, Hanyi Wang, Quan Gan, Shuang Zheng   +3 more
wiley   +1 more source

Formation Evaluation and Reservoir Quality Assessment of the AN-field Offshore Douala/Kribi Campo Basin, Cameroon [PDF]

Journal of Petroleum Science and Technology
The AN field, located offshore in the Douala Sub-Basin within the Douala/Kribi-Campo Basin, is part of the larger Aptian Salt Basin in Equatorial West Africa.
Edwin Ndip, Joseph Valery Ⅱ Batembe, Kawa Maximus Josephine   +2 more
doaj   +1 more source

Gaborlet‐guided sparse filtering: A novel intelligent method for lithology identification by vibration signals while drilling

Deep Underground Science and Engineering, EarlyView.
The flowchart illustrates rock specimen testing, vibration signal acquisition, and feature extraction with Gaborlet and sparse filtering for classification. Abstract Traditional lithology identification methods mainly rely on core sampling and well‐logging data.
Jian Hao, Danqi Zhang, Zhenqi Song, Jinrui Wang, Qi Wang, Heqing Liu   +5 more
wiley   +1 more source

Application of micro‐CT to resolve textural properties and assess primary sedimentary structures of deep‐marine sandstones

The Depositional Record
Over the past decade, there has been growing interest in the sedimentological community to use micro X‐ray computed tomography to analyse microfacies in sediment cores.
P. H. Cornard, G. Degenhart, P. Tropper, J. Moernaut, M. Strasser   +4 more
doaj   +1 more source

The U10 0 reservoir is a promising oil and gas exploration facility in the Serginsky NGR of the West Siberian NGP

Известия высших учебных заведений: Нефть и газ
Currently, oil deposits in the Lower Jurassic strata of the Serginskoye oil and gas region have been identified in several fields, including the Serginskoye, Alekseyevskoye, Zapadno-Yaganokurt, Bolshoye, Karempostskoye, and Yuzhno-Lykhminskoye fields ...
A. V. Blinkova, N. L. Popova, L. N. Shcherbakova, N. V. Shishkina, Ya. R. Bertram   +4 more
doaj   +1 more source

Depositional architecture and petroleum potential of the Cambro-Ordovician Hawaz Formation, Murzuq Basin, SW Libya. [PDF]

, 2006
The Murzuq Basin, SW Libya, contains a sedimentary fill up to 4000 m thick, comprising a marine Palaeozoic section and a continental Mesozoic section. The primary reservoir target in the basin is the Upper Ordovician Mamuniyat Formation, but where this ...
Alkhalas, Tarek Jiuma
core  

(Table T2) Raw point-counts of volcaniclastic sands and sandstones from ODP Leg 180 sites

, 2002
(Table T2) Raw point-counts of volcaniclastic sands and sandstones from ODP Leg 180 ...
Robertson, Alastair H F, Timothy R Sharp (6974030), Alastair H F Robertson (6961169), Sharp, Timothy R   +3 more
core   +1 more source