scholarly journals Distribution characteristics and controlling factors of nitrifying microorganisms in freshwater and sediment of eutrophic zones in Lake Taihu in autumn

2017 ◽  
Vol 29 (6) ◽  
pp. 1312-1323
Author(s):  
WU Ling ◽  
◽  
QIN Hongyi ◽  
ZHU Mengyuan ◽  
HAN Cheng ◽  
...  
Keyword(s):  
Lake Taihu ◽  
Controlling Factors ◽  
Distribution Characteristics

Distribution characteristics and controlling factors of vertical joint spacing in sand-mud interbedded strata

2019 ◽  
Vol 128 ◽  
pp. 103886 ◽  
Author(s):  
Han Bao ◽  
Yong Zhai ◽  
Hengxing Lan ◽  
Keke Zhang ◽  
Qun Qi ◽  
...  
Keyword(s):  
Controlling Factors ◽  
Distribution Characteristics ◽  
Joint Spacing ◽  
Vertical Joint

scholarly journals Water nutrient status and its controlling factors in the inflow tributaries of Xitiaoxi River, upper reaches of Lake Taihu basin

2015 ◽  
Vol 27 (2) ◽  
pp. 208-215
Author(s):  
WANG Huan ◽  
◽  
YUAN Xuyin ◽  
CHEN Hailong ◽  
XU Haiyan ◽  
...  
Keyword(s):  
Lake Taihu ◽  
Nutrient Status ◽  
Controlling Factors ◽  
Taihu Basin

Research on Interface Symbols of Sand Groups and Characters of Interior Gyrations of Heidimiao Layer in Yingtai Area

2013 ◽  
Vol 773 ◽  
pp. 800-805
Author(s):  
Gui You Lv
Keyword(s):  
Seismic Data ◽  
Water Distribution ◽  
Controlling Factors ◽  
Distribution Characteristics ◽  
Single Well ◽  
Group Characteristics ◽  
Set Correlation

This article is intended to identify interface symbols of sand groups by combining logging data with seismic data, and set correlation symbols of 8 sand groups in strata Nen 3 (H1) and Nen 4 (H2) of Nenjiang group. Characteristics of interior gyrations of those sand groups are analyzed according to core and logging data. Besides, sand group features of a single well are expected to be studied in this article. Upon the data and analysis, foundation information is provided for the research on sand distribution characteristics of Heidimiao oil layer and controlling factors of oil and water distribution.

Distribution Characteristics and Risk Assessments of PAHs in Fish from Lake Taihu, China

2014 ◽  
Vol 21 (7) ◽  
pp. 1753-1765 ◽  
Author(s):  
Hailei Su ◽  
Fengchang Wu ◽  
Jianyang Guo ◽  
Yan Hu ◽  
Chenglian Feng ◽  
...  
Keyword(s):  
Lake Taihu ◽  
Risk Assessments ◽  
Distribution Characteristics

Analysis of Distribution of Coalbed Methane and Geological Controlling Factors in Huanghebei Mining Area

2013 ◽  
Vol 448-453 ◽  
pp. 3757-3761
Author(s):  
Yan Ru Meng ◽  
Zeng Xue Li ◽  
Hai Yan Liu ◽  
Nan Jiang ◽  
Juan Liu
Keyword(s):  
Coal Seam ◽  
Coalbed Methane ◽  
Mining Area ◽  
Controlling Factors ◽  
Methane Content ◽  
Burial Depth ◽  
Distribution Characteristics ◽  
Deep Well ◽  
Hydrogeological Conditions ◽  
Geological Factors

Distribution characteristics of coalbed methane in Huanghebei mining area were studied and influence of geological factors such as faults, lithology of coal seam roof and floor, magmatic activities, burial depth and upper bedrock thickness of coal seam and hydrogeological conditions on occurrence of coalbed methane were deeply discussed in this paper. Coalbed methane content of mining area increased gradually from southeast to northwest. Coalbed methane in deep well points of mining area is dominated by methane and that in shallow parts contained higher content of nitrogen.

Distribution Characteristics of Fractures in the Ultra-Low Permeability Reservoirs of Anpeng Oilfield, China

2014 ◽  
Vol 909 ◽  
pp. 463-466
Author(s):  
Lei Gong ◽  
Shu Jun Guo ◽  
Shuai Gao ◽  
Xian Xian Tao ◽  
Jian Guo Huang
Keyword(s):  
Tectonic Stress ◽  
Controlling Factors ◽  
Low Permeability ◽  
Distribution Characteristics ◽  
Thin Sections ◽  
Main Fracture ◽  
Main Factors ◽  
Dip Angle ◽  
Fracture Distribution ◽  
Low Permeability Reservoirs

Using the data of cores, outcrops, thin sections and image logs, we analyzed the fracture distribution characteristics in the ultra-low permeability reservoirs of Anpeng oilfield. Then, we analyzed the main factors controlling the development of fractures. There are tectonic fractures and diagenetic fractures in the ultra-low permeability reservoirs. Tectonic fractures with high dip-angle are the main fracture type. Under the stresses resulting from horizontal tectonic compressions in the Early and Late Himalayan movements, three sets of tectonic fractures formed in the study area, i.e. E-W, NE-SW and NW-SE orientations. The E-W oriented fractures are developed better, then the NE-SW and NW-SE oriented fractures. The formation and distribution of these tectonic fractures are controlled by the tectonic stress field, lithology, porosity, permeability, layer thickness and structures. Under the same controlling factors, the origin types, occurrences and development characteristics of fractures in shallow-to mid-depth reservoirs are similar to that in the deep reservoirs. But fractures developed better in the deep reservoirs than that in the shallow-to mid-depth reservoirs.

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