Results 71 to 80 of about 105,269 (259)

Seismic Ray Impedance Inversion [PDF]

, 2010
This thesis investigates a prestack seismic inversion scheme implemented in the ray parameter domain. Conventionally, most prestack seismic inversion methods are performed in the incidence angle domain.
Lu, Xiaolin, Lu, Xiaolin
core   +1 more source

Organic Geochemical Characterization and Exploration Prospects of Hydrocarbon Source Rocks in Nepal

Energy Science &Engineering, EarlyView.
It provides a more detailed introduction to the current situation of oil and gas exploration in Nepal, as well as the properties and distribution characteristics of source rocks. ABSTRACT This study aims to evaluate the hydrocarbon generation potential and exploration prospects of hydrocarbon source rocks in the Dailekh to Dang–Tansen area of Nepal ...
Guoqiang Zhang, Rui Wang, Yinglie Li, Xinhe Wu, Yanming Qu   +4 more
wiley   +1 more source

Study on the Influence of Temperature Distribution in Thermite Plugging Abandoned Well Technology

Energies
With the intensive development of oil and gas resources leading to a rapid increase in abandoned wells, sealing failures may cause oil and gas leakage and environmental pollution.
Hao Liu, Jie Zhang, Ruitao Sun, Xiang Li, Jiajun Yao, Jiazheng Zhou   +5 more
doaj   +1 more source

Profils longitudinaux et ruptures de pente : enseignements géomorphologiques en Bretagne du sud

Physio-Géo, 2014
Analysing of longitudinal profiles of coastal river channels in South Brittany allows to highlight relationships between fluvial dynamics, lithology and tectonics.
Jean-Pierre Larue
doaj   +1 more source

Lower Eocene sedimentary succession and microfossil biostratigraphy in the central northern Caucasus basin

Geologica Acta, 2020
The lower Eocene sediments from the classical Paleogene section exposed along the Kheu River, northern Caucasus, southern Russia are here studied. This ca. 50m thick succession is lithologically contrasting: the lower and upper parts are composed by soft
E. Shcherbinina, A. Iakovleva, Yu. Gavrilov , O. Golovanova, N. Muzylöv   +4 more
doaj   +1 more source

P- and S- wave velocities of consolidated sediments from a seafloor seismic survey in the North Celtic Sea Basin, offshore Ireland [PDF]

, 2007
A geophysical survey was conducted over a hydrocarbon prospect in the North Celtic Sea Basin using a small array of ocean-bottom seismographs (OBSs). The purpose of this study was to determine the ratio of (P) compressional- to (S) shear-wave velocity of
Minshull, Timothy A., O'Sullivan, John M., Peirce, Christine, Shillington, Donna J.   +3 more
core   +1 more source

Similar Material Simulation Study on Dam Movement and Deformation Law of Deep Coal Seam Mining Under Dam

Energy Science &Engineering, EarlyView.
Aiming at the difficulties in accurately calculating the movement and deformation of small‐sized, deep‐buried dams with a significant height‐to‐depth ratio in deep fully mechanized caving mining, this study proposes to separate the analysis of surface and dam deformation.
Zhang Feng, Qin Hong‐yan, Hu Shou‐bin, Xu Xiao‐yu, Ti Zheng‐yi, Zheng Zhuo‐yan, Yang Shuai, Li Yang   +7 more
wiley   +1 more source

Allerød–Younger Dryas Boundary (12.9–12.8 ka) as a “New” Geochronological Marker in Late Glacial Sediments of the Eastern Baltic Region

Quaternary
This paper is a contribution to the ongoing debate on the nature and drivers of the abrupt environmental shift at the onset of the Younger Dryas. The goal of this study is to identify key parameters that characterize the Allerød–Younger Dryas boundary ...
Olga Druzhinina, Ivan Skhodnov, Kasper van den Berghe, Ksenia Filippova   +3 more
doaj   +1 more source

Investigation of the Dynamic Evolution Mechanism of Bed Separation in Karst Aquifers and Risk Assessment of Water Inrush

Energy Science &Engineering, EarlyView.
This study reveals the temporal and spatial evolution law of roof separation under the karst aquifer and the dynamic water inrush mechanism of roof separation. The FAHP–EWM–CRITIC combination weighting method was established to obtain the risk zoning of bed separation water inrush in a karst landform mining area. ABSTRACT Coalfields in northern Guizhou
Xilong Zhu, Lulin Zheng, Bo Li, Weide Ren, Xiong Liu, Ximin Zhou   +5 more
wiley   +1 more source

Report and preliminary results of RV METEOR Cruise M78/3. Sediment transport off Uruguay and Argentina: from the shelf to the deep sea ; 19.05.2009 – 06.07.2009, Montevideo (Uruguay) – Montevideo (Uruguay) [PDF]

, 2012
The waters off Uruguay and Northern Argentina offer the possibility to study sediment transport processes from ‘source-to-sink’ in a relatively small area.
Krastel, Sebastian, Wefer, Gerold
core