scholarly journals Hydrocarbon accumulation characteristics of beach-bar sandstones in the southern slope of the Dongying Sag, Jiyang Depression, Bohai Bay Basin, China

2014 ◽  
Vol 11 (2) ◽  
pp. 220-233 ◽  
Author(s):  
Song Guo ◽  
Lijuan Tan ◽  
Chengyan Lin ◽  
Hongnan Li ◽  
Xiuxiang Lü ◽  
...  
2014 ◽  
Vol 41 (6) ◽  
pp. 703-711 ◽  
Author(s):  
Linye ZHANG ◽  
Youshu BAO ◽  
Juyuan LI ◽  
Zheng LI ◽  
Rifang ZHU ◽  
...  

2017 ◽  
Vol 5 (2) ◽  
pp. T209-T217 ◽  
Author(s):  
Siyuan Su ◽  
Zhenxue Jiang ◽  
Zhiye Gao ◽  
Chuanxiang Ning ◽  
Zhi Wang ◽  
...  

We have evaluated continental shale oil enrichment via experiments. Rock pyrolysis, nuclear magnetic resonance, and pulse permeability tests were conducted to establish the pore saturation index (PSI), which comprehensively evaluates the enrichment of shale oil features using the characteristics of self-generation and self-preservation, the parameters of which include the pyrolysis-free hydrocarbon ([Formula: see text]) and total organic carbon of source rocks as well as the porosity and permeability of reservoir rocks. The correlation of the oil content ([Formula: see text]) and PSI values indicated that PSI values greater than 50 generally indicate good oil enrichment plays, whereas those smaller than 50 imply poor conditions for oil enrichment. This conclusion was successfully applied to the Zhanhua Sag with shale oil plays in the Jiyang Depression, Bohai Bay Basin, China. In addition, the shale oil plays of the Dongying Sag in the Jiyang Depression were investigated to verify the effectiveness and reliability of the new method.


2014 ◽  
Vol 1010-1012 ◽  
pp. 1376-1379
Author(s):  
Fu Lai Li ◽  
Wen Shuai Li ◽  
Zhong Feng Duan ◽  
Yan Deng

A large number of dawsonite-bearing sandstones has been found in Dongying Sag of Bohai Bay basin. The petrological characteristics of these sandstones, such as the framework clastic composition, cements, authigenic minerals and diagenetic paragenesis succession are investigated by polarizing microscope, SEM, and Alizarin Red-S staining etc. The results show that these kinds of dawsonite-bearing sandstone are feldspathic sandstone or debris-feldspar sandstone with mainly fine or fine to medium particle size, poor to mediocre sorting features, poor psephicity and dot-line contact. The cements and authigenic minerals are dominated by overgrowth quartz, dawsonite, calcite, ferrocalcite, ankerite and clay minerals. The amount of dawsonite accounts for 15% by volume. The paragenesis sequence are illite/montmorillonite mixing layer, kaolinite, overgrowth quartz-calcite, ferrocalcite, dawsonite and ankerite.


2015 ◽  
Vol 62 ◽  
pp. 77-89 ◽  
Author(s):  
Guanghui Yuan ◽  
Jon Gluyas ◽  
Yingchang Cao ◽  
Norman H. Oxtoby ◽  
Zhenzhen Jia ◽  
...  

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