Results 31 to 40 of about 1,688,734 (296)

On the Imbibition Model for Oil-Water Replacement of Tight Sandstone Oil Reservoirs [PDF]

open access: yesGeofluids, 2021
A model suitable for evaluating a tight sandstone reservoir is established. The model includes two oil-water replacement modes: capillary force mode and osmotic pressure mode. The relationship between oil-water displacement rate and dimensionless time under different parameters is drawn considering the influence of capillary force, osmotic pressure ...
Xiong Liu   +4 more
openaire   +2 more sources

Influence of source-reservoir contact conditions on the enrichment of near-source tight oil: taking Chang 81 reservoir in the Longdong area of Ordos Basin as an example

open access: yesShiyou shiyan dizhi, 2022
The geological characteristics of tight oil have been relatively well understood, but there are certain questions needed to be answered regarding the distribution of tight oil.
Zhenglu XIAO   +5 more
doaj   +1 more source

Classification evaluation criteria and exploration potential of tight oil resources in key basins of China

open access: yesJournal of Natural Gas Geoscience, 2019
In general, the migration distance of continental tight oil in China is relatively short, and the formation and distribution are mainly controlled by the tectonic setting, source rock, reservoir, and source-reservoir matching relationship.
Xiang Fang   +5 more
doaj   +1 more source

Physical and numerical simulation of inter-fracture flooding in heterogeneous tight oil reservoirs

open access: yesEnergy Reports, 2022
The existing tight oil reservoirs are mainly developed after hydraulic fracturing of horizontal Wells with low recovery. Traditional enhanced oil recovery (EOR) methods are difficult to apply in tight reservoirs, because huff-puff drives oil to the ...
Yi Yang   +9 more
doaj   +1 more source

Geological conditions for continental tight oil formation and the main controlling factors for the enrichment: A case of Chang 7 Member, Triassic Yanchang Formation, Ordos Basin, NW China

open access: yesPetroleum Exploration and Development, 2017
The Chang7 Member of the Triassic Yanchang Formation in the Ordos Basin is a typical continental tight oil province. The geological conditions and the main controlling factors for the formation of tight oil province in Chang 7 Member were studied based ...
Hua YANG   +4 more
doaj   +1 more source

Surfactants and enhanced oil recovery [PDF]

open access: yes, 1988
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.A large number of commercial and some novel Brunel synthesised surfactants have been studied with a view to their potential usefulness for enhanced oil ...
Pilc, Jennifer
core   +6 more sources

Classification of the tight oil reservoir storage space in the Raoyang Sag of the Jizhong Depression in the Bohai Bay Basin, China

open access: yesEnergy Science & Engineering, 2020
To improve the precision of predicting sweet spots in tight oil reservoirs, the classification of tight oil reservoir storage space is necessary. The tight oil reservoir in the lower submember of the first member of Shahejie Formation (Es1L) of the ...
Fangwen Chen   +5 more
doaj   +1 more source

Characteristics and resource prospects of tight oil in Ordos Basin, China

open access: yesPetroleum Research, 2016
: Efficient large-scale development of ultra-low-permeability reservoirs (0.3–1 mD) has been achieved in the Changqing Oilfield, Ordos Basin of China. According to unique features of petroleum exploration and development in this basin, tight oil herein ...
Hua Yang, Shixiang Li, Xianyang Liu
doaj   +1 more source

Geological features and exploration fields of tight oil in the Cenozoic of western Qaidam Basin, NW China

open access: yesPetroleum Exploration and Development, 2017
Using a large amount of drilling and experimental analysis data, this paper evaluates four potential fields of tight oil exploration in western Qaidam Basin from comprehensive analysis of geological conditions such as sedimentary environments, source ...
Zhanguo LIU   +8 more
doaj   +1 more source

Types, distribution and play targets of Lower Cretaceous tight oil in Jiuquan Basin, NW China

open access: yesPetroleum Exploration and Development, 2018
Based on drilling and laboratory data, the formation conditions of tight oil reservoirs in the Jiuquan basin were comprehensively analyzed and the exploration domains were sorted out.
Qilin CHEN   +7 more
doaj   +1 more source

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