Results 51 to 60 of about 2,145,643 (244)

Multiscale Characterization of Fractures and Analysis of Key Controlling Factors for Fracture Development in Tight Sandstone Reservoirs of the Yanchang Formation, SW Ordos Basin, China

open access: yesApplied Sciences
Tight sandstone reservoirs, despite their low porosity and permeability, present considerable exploration potential as unconventional hydrocarbon resources.
Peng Chen   +5 more
doaj   +1 more source

Analysis of the Main Controlling Factors for the Effectiveness of Corrosion Coupon Monitoring [PDF]

open access: yesCailiao Baohu
To analyze the main factors controlling the effectiveness of corrosion coupon monitoring,a three-factor,three-level orthogonal experiment covering field conditions was designed using a multiphase flow corrosion loop (MPFC).The orthogonal experiment was ...
WU Linshuang, YU Hao, HUANG Fufengyun, LIAO Kexi, HE Guoxi, TAN Min, WANG Min'an, YANG Na, WANG Qianyu, LI Wenjing
doaj   +1 more source

Pore-throat structure characteristics and its impact on the porosity and permeability relationship of Carboniferous carbonate reservoirs in eastern edge of Pre-Caspian Basin

open access: yesPetroleum Exploration and Development, 2020
Carboniferous carbonate reservoirs at the eastern edge of the Pre-Caspian Basin have undergone complex sedimentation, diagenesis and tectonism processes, and developed various reservoir space types of pores, cavities and fractures with complicated ...
Weiqiang LI   +10 more
doaj   +1 more source

Estimation of N2O emission factors for soils depending on environmental conditions and crop management [PDF]

open access: yes, 2009
Nitrous oxide (N2O) contributes 8% to anthropogenic global warming, of which about one third are direct emissions of agricultural soils. These N2O emissions are often estimated using the default IPCC 2006 emission factor of 1% of the amount of N applied ...
Lesschen, J.P., Velthof, G.L.
core   +1 more source

Coupling hydro-geo-chemical and isotopic approaches to assess the main factors controlling karst development in a fissure-dominated carbonate aquifer system (s-Spain) [PDF]

open access: yes, 2018
Sierra Tejeda, Almijara and Albuñuelas mountains comprise a large outcrop (750 km² ca) of Triassic marbles in between of Málaga and Granada provinces in S Spain.
Andreo-Navarro, Bartolome   +2 more
core  

Characteristics and controlling factors of tectonic fractures within the buried hill reservoirs from the Archaean metamorphic basement: a case study in the Bozhong 19–6 condensate gas field, Bohai Bay Basin

open access: yesFrontiers in Energy Research
The Bozhong 19–6 Condensate gas field is the first giant gas field discovered in the Bohai Bay Basin in recent years. The gas field reservoir has diverse reservoir space and strong heterogeneity.In this paper, we systematically summarize tectonic ...
Zongbing Liu   +5 more
doaj   +1 more source

Does Reform Work? An Econometric Examination of the Reform-Growth Puzzle [PDF]

open access: yes, 2006
Why are socially beneficial reforms not implemented? One simple answer to this question (which has received little attention in the literature) is that this may be caused by generalised uncertainty about the effectiveness of reforms. If agents are unsure
Babetskii, Ian, Campos, Nauro F.
core   +1 more source

Sedimentary Evolution Laws and Main Controlling Factors of the Nenjiang Formation in the Songnan Da’anbei Area, China

open access: yesApplied Sciences
Shallow-water deltas serve as a critical area for the exploration and development of terrestrial lacustrine oil and gas reservoirs. Current research on oil and gas exploration and development in China’s terrestrial lacustrine basins primarily focuses on ...
Lei Yuan, Mingyi Hu, Qingjie Deng
doaj   +1 more source

Simulating carbon exchange using a regional atmospheric model coupled to an advanced land-surface model [PDF]

open access: yes
A large scale mismatch exists between our understanding and quantification of ecosystem atmosphere exchange of carbon dioxide at local scale and continental scales.
Hutjes, R.W.A.   +2 more
core   +2 more sources

Pain in photodynamic therapy [PDF]

open access: yes, 2016
Photodynamic therapy is a modern treatment with applications in several medical specialties, which has been intensely studied in the last years. The main indications in dermatology are actinic keratosis, superficial basal cell carcinoma and Bowen\u27s ...
Benea, Vasile   +6 more
core   +3 more sources

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