Analysis of Dynamic Imbibition Effect of Surfactant in Microcracks of Reservoir at High Temperature and Low Permeability

2018 ◽  
Vol 33 (03) ◽  
pp. 596-606 ◽  
Author(s):  
Kun Xie ◽  
Xiangguo Lu ◽  
He Pan ◽  
Dawei Han ◽  
Guangbin Hu ◽  
...  
Keyword(s):  
High Temperature ◽  
Low Permeability

Low-Salinity Polymer Flooding in a High-Temperature Low-Permeability Carbonate Reservoir in West Kuwait

2019 ◽  
Author(s):  
Mohammed Taha Al-Murayri ◽  
Dawood S. Kamal ◽  
Hessa M. Al-Sabah ◽  
Tareq AbdulSalam ◽  
Adnan Al-Shamali ◽  
...  
Keyword(s):  
High Temperature ◽  
Polymer Flooding ◽  
Carbonate Reservoir ◽  
Low Permeability ◽  
Low Salinity

Characteristics of High Temperature Switch Mode Power Supplies

2012 ◽  
Vol 2012 (HITEC) ◽  
pp. 000307-000314
Author(s):  
Harold L. Snyder
Keyword(s):  
High Temperature ◽  
Power Supplies ◽  
Low Permeability ◽  
Switch Mode ◽  
Lower Permeability ◽  
Design Characteristics ◽  
Temperature Switch

High temperature switch mode power supplies (SMPS) typically use transformers with much lower permeability than those used in commercial or industrial SMPS systems. The design characteristics of these low permeability transformers are discussed, simulated in SPICE with Jiles-Atherton models and measurements are presented for a single forward based design.

Wellhead Samples of High-Temperature, Low-Permeability Petroleum Reservoirs Reveal the Microbial Communities in Wellbores

2017 ◽  
Vol 31 (5) ◽  
pp. 4866-4874 ◽  
Author(s):  
Zhiyong Song ◽  
Zhi Yao ◽  
Fengmin Zhao ◽  
Gangzheng Sun ◽  
Weiyao Zhu
Keyword(s):  
High Temperature ◽  
Microbial Communities ◽  
Petroleum Reservoirs ◽  
Low Permeability

Study of New Ultra-Temperature Polymer Fracturing Fluid Material

2014 ◽  
Vol 1061-1062 ◽  
pp. 283-286 ◽  
Author(s):  
Sheng Peng Wang ◽  
Xian Zheng Zhao ◽  
Bo Cai ◽  
Shen Hua
Keyword(s):  
High Temperature ◽  
Low Permeability ◽  
Bohai Bay ◽  
Fracturing Fluid ◽  
Fluid System ◽  
Acid Rock ◽  
High Efficient ◽  
New Material ◽  
Buried Hill ◽  
Ultra High Temperature

Nowadays, hydraulic fracturing has become the mainly treatment in low permeability reservoirs.Niudong buried-hill was located in the Baxian Sag of the Bohai Bay Basin. The charactristers of this natural reservoirs are summarized as :low porosity and ultra-low permeability ;complex storage types and complex fracture break and with ultra high temperature (200-210°C) ,In the past, 150°C fracturing fluid system was used in order to solve fluid fracturing efficiency low, quick acid rock reaction.Field test shown that it can’t meet target of greatly improve the output. So it is necessary to develop a novel fluid system to achieve high-efficient stimulation. Therefore, this paper invented a new high temperature resistant ternary anionic thickener, and launched some fracturing fluid performance evaluation.The novel high-temperature fracturing fliud provides a new material to stimulate ultra-high temperature, ultra deep formation to help maximize recovery efficiency. it has important strategic significance for exploration promotion of ultra-high reservoirs .

High Temperature Ageing of Fe-based Nanocrystalline Ribbons

2012 ◽  
Vol 2012 (HITEC) ◽  
pp. 000260-000265 ◽  
Author(s):  
Christian Martin ◽  
Rémi Robutel ◽  
Cyril Buttay ◽  
Fabien Sixdenier ◽  
Pascal Bevilacqua ◽  
...  
Keyword(s):  
High Temperature ◽  
High Temperature Stress ◽  
Complex Permeability ◽  
Magnetic Flux Density ◽  
Low Permeability ◽  
High Permeability ◽  
Design Considerations ◽  
Temperature Ageing ◽  
The Impact

The impact of long-term high-temperature stress on nanocrystalline Finemet materials is measured by keeping samples at 200 °C for 1300 hours. The standard industrialized, high permeability Finemet materials as well as the recently available low permeability Finemet materials are investigated. Characterizations are performed at different frequencies, temperatures and magnetic field excitations on both aged and non-aged samples. Their complex permeability is also measured during the ageing test. Irreversible changes are pointed out on permeability, coercive field and magnetic flux density at saturation. Regarding the design considerations for high temperature power electronics, the suitability of these materials is demonstrated but an ageing effect has to be considered nonetheless. The presented data can be extrapolated to several thousand hours at 200 °C using the presented empiric ageing law.

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