Main controlling factors to determine depth of failure zone in complete floor of coal seam based on field measurements

2022 ◽  
Vol 15 (1) ◽  
Author(s):  
Yang Chen ◽  
Liansheng Tang
Keyword(s):  
Coal Seam ◽  
Field Measurements ◽  
Controlling Factors ◽  
Failure Zone ◽  
Main Controlling Factors

Analysis of Geological Factors Affecting Coal Seam Gas Content and Prediction

2013 ◽  
Vol 634-638 ◽  
pp. 3645-3649
Author(s):  
Lin Chao Dai ◽  
Guang Cai Wen ◽  
Zhen Liu ◽  
Hui Ming Yang ◽  
Bo Wang
Keyword(s):  
Coal Seam ◽  
Controlling Factors ◽  
Gas Content ◽  
Influence Coefficient ◽  
Nonlinear Prediction ◽  
Single Factor ◽  
Coal Seam Gas ◽  
Factor Method ◽  
Main Controlling Factors ◽  
Geological Factors

In order to determine coal seam gas content accurately, the single factor method was adopted to study geological factors that affect coal seam gas content of a coal mine. Bedrock depth, 50m influence coefficient and coal thickness are identified as the main controlling factors of gas content. And the corresponding correlation coefficient are: 0.6011, 0.3899, 0.2527. Factors such as effective trapping thickness, moisture content and ash content are regarded as secondary factors. Then the SVM theory was used to set up a nonlinear prediction model between coal seam gas content and main controlling factors, and the gas content was predicted. Results show that single factor method can be used to determine main controlling factors of coal seam gas and the gas content SVM model can predict gas content accurately. Besides, the research findings can provide technical basis for gas drainage and gas outburst prevention.

Reservoir characteristics and main controlling factors of oil sand in Houba area, northwestern Sichuan Basin, China

2013 ◽  
Vol 7 (6) ◽  
pp. 2119-2128 ◽  
Author(s):  
Xuefei Yang ◽  
Xingzhi Wang ◽  
Shaonan Zhang ◽  
Hao Tang ◽  
Deming Zeng ◽  
...  
Keyword(s):  
Sichuan Basin ◽  
Controlling Factors ◽  
Oil Sand ◽  
Reservoir Characteristics ◽  
Main Controlling Factors

Controlling Factors of Hydrocarbon Accumulation in Talaha-Changjiaweizi Area

2013 ◽  
Vol 734-737 ◽  
pp. 1175-1178
Author(s):  
Hong Qi Yuan ◽  
Ying Hua Yu ◽  
Fang Liu
Keyword(s):  
Physical Properties ◽  
Oil And Gas ◽  
Controlling Factors ◽  
Source Rocks ◽  
Hydrocarbon Accumulation ◽  
Gas Migration ◽  
Main Controlling Factors ◽  
Sedimentary Microfacies ◽  
Plane Distribution ◽  
Distributary Channel

Based on the analysis of the relationships between the conditions of structures, sedimentations, source rocks, cap rocks, faults, oil and gas migration passages and traps and hydrocarbon accumulation, the controlling factors of hydrocarbon accumulation and distribution was studied in Talaha-changjiaweizi area. It is held that the source rocks control the hydrocarbon vertical distribution, the drainage capabilities control the hydrocarbon plane distribution, fracture belts control the hydrocarbon accumulation of Talaha syncline, underwater distributary channel is a favorable accumulation environment and reservoir physical properties control the oil and water distributions. Therefore, it is concluded that source rocks, fracture belts, sedimentary microfacies and reservoir physical properties are the main controlling factors of hydrocarbon accumulation and distribution in Talaha-changjiaweizi area.

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