A study of gas lift on oil/water flow in vertical risers [PDF]
, 2014 Gas lift is a means of enhancing oil recovery from hydrocarbon reservoirs. Gas injected at the production riser base reduces the gravity component of the pressure drop and thereby, increases the supply of oil from the reservoir. Also, gas injection at
Brini Ahmed, Salem Kalifa
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Mapping Small-Scale Horizontal Velocity Field in Panzhinan Waterway by Coastal Acoustic Tomography
Sensors, 2020 Mapping small-scale high-precision velocity fields is of great significance to oceanic environment research. Coastal acoustic tomography (CAT) is a frontier technology used to observe large-scale velocity field in the horizontal slice. Nonetheless, it is
Haocai Huang +3 more
doaj +1 more source
Systematic review of the clinical effectiveness and cost-effectiveness of 64-slice or higher computed tomography angiography as an alternative to invasive coronary angiography in the investigation of coronary artery disease [PDF]
, 2008 Objectives: To assess the clinical effectiveness and cost-effectiveness, in different patient groups, of the use of 64-slice or higher computed tomography (CT) angiography, instead of invasive coronary angiography (CA), for diagnosing people with ...
Cummins, E. +21 more
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Study on controlling factors of Heidimiao Reservoir formation in Block T121-4 of Aonan Oilfield
, 2021 There are three types of faults in Block T121-4 of Aonan Oilfield, among which the faults developed from the early Qingshankou and terminated in the Third member of Nenen are the main channels for oil-gas migration. The pre-stack inversion shows that the
Yihan Wang
semanticscholar +1 more source
Ray Trace Tomographic Velocity Analysis of Surface Seismic Reflection Data [PDF]
, 1988 Recent development of two technologies allows application of a generalized formulation of travel time inversion to very large data sets, such as the surface reflection surveys collected for oil exploration.
Stork, Christof
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Reconstructing a function on the sphere from its means along vertical slices
, 2016 We present a novel algorithm for the inversion of the vertical slice transform, i.e. the transform that associates to a function on the two-dimensional unit sphere all integrals along circles that are parallel to one fixed direction.
R. Hielscher, Michael Quellmalz
semanticscholar +1 more source
, 2017 espanolRESUMEN Para mejorar la interpretacion estratigrafica de datos sismicos 3D se procuro aumentar la resolucion vertical mediante una inversion espectral (Puryear & Castagna, 2008; Qiu, Junhua, Xiaohui, Hu, & Lei, 2016) y la resolucion lateral usando
J. Ramírez +2 more
semanticscholar +1 more source
Error concealment for slice group based multiple description video coding [PDF]
, 2005 This paper develops error concealment methods for multiple description video coding (MDC) in order to adapt to error prone packet networks. The three-loop slice group MDC approach of D. Wang et al. (2005) is used.
Agrafiotis, D +3 more
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MULTIBASELINE POLARIMETRIC SAR INTERFEROMETRY FOREST HEIGHT INVERSION APPROACHES [PDF]
, 2011 Polarimetric SAR interferometry (Pol-InSAR) is a radar remote sensing technique that is sensitive to the vertical distribution of scattering processes in volumes.
Lee, Seung-Kuk +3 more
core
Youqi dizhi yu caishouluHuagang Formation in offshore A gas field is a large composite channel deposit with horizontal migration and vertical superposition of channels. The target layer has a large burial depth， few drilled wells， and poor-quality seismic data.
WANG Jianwei +5 more
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