The Study on Pore Structure Characteristics and Reservoir Classification of Tight Sandstone

2020 ◽  
Author(s):  
M. Liu ◽  
R. Xie ◽  
B. Wu ◽  
M. Gu ◽  
J. Li ◽  
...  
Keyword(s):  
Pore Structure ◽  
Tight Sandstone ◽  
Structure Characteristics

scholarly journals Binary pore structure characteristics of tight sandstone reservoirs

2019 ◽  
Vol 46 (6) ◽  
pp. 1297-1306 ◽  
Author(s):  
Haihua ZHU ◽  
Tingshan ZHANG ◽  
Dakang ZHONG ◽  
Yaoyu LI ◽  
Jingxuan ZHANG ◽  
...  
Keyword(s):  
Pore Structure ◽  
Tight Sandstone ◽  
Structure Characteristics ◽  
Sandstone Reservoirs

Development of pore structure characteristics of a weathered crust elution-deposited rare earth ore during leaching with different valence cations

2021 ◽  
Vol 201 ◽  
pp. 105579
Author(s):  
Lingbo Zhou ◽  
Xiaojun Wang ◽  
Chengguang Huang ◽  
Hao Wang ◽  
Huachang Ye ◽  
...  
Keyword(s):  
Rare Earth ◽  
Pore Structure ◽  
Structure Characteristics ◽  
Weathered Crust

Research on the Wire Drawing Die Pass Parameter Calculation Based on the Least Square Algorithm

2012 ◽  
Vol 591-593 ◽  
pp. 850-853
Author(s):  
Huai Xing Wen ◽  
Yong Tao Yang
Keyword(s):  
Pore Structure ◽  
Least Squares ◽  
Least Squares Method ◽  
Piecewise Linear ◽  
Wire Drawing ◽  
Least Square ◽  
Structure Characteristics ◽  
Drawing Die ◽  
The Wire ◽  
Drawing Dies

Drawing Dies meter A / D acquisition module will be collected from the mold hole contour data to draw a curve in Matlab. According to the mold pore structure characteristics of the curve, the initial cut-off point of each part of contour is determined and iteratived optimization to find the best cut-off point, use the least squares method for fitting piecewise linear and fitting optimization to find the function of the various parts of the curve function, finally calculate the pass parameters of drawing mode. Parameters obtained compare with the standard mold, both of errors are relatively small that prove the correctness of the algorithm. Also a complete algorithm flow of pass parameters is designed, it can fast and accurately measure the wire drawing die hole parameters.

Effect of walnut shell ash on pore structure characteristics during Zhundong coal sintering

2021 ◽  
Vol 221 ◽  
pp. 106923
Author(s):  
Hao Zhou ◽  
Jiawei Luo ◽  
Zhaowen Wang ◽  
Mengting Ji ◽  
Mingrui Zhang
Keyword(s):  
Pore Structure ◽  
Walnut Shell ◽  
Structure Characteristics ◽  
Zhundong Coal
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