scholarly journals In situ stress test device applied to boreholes with a small aperture and stress field inversion technique in coal mines

2021 ◽  
Vol 861 (6) ◽  
pp. 062096
Author(s):  
N B Zhang ◽  
S K Zhao ◽  
Z G Deng
Keyword(s):  
Stress Field ◽  
Stress Test ◽  
Coal Mines ◽  
In Situ Stress ◽  
Test Device ◽  
Small Aperture ◽  
Inversion Technique ◽  
Field Inversion

Modified Inversion Technique for Determining the In-situ Stress Field

2013 ◽  
Author(s):  
Jianguo Zhang ◽  
Mojtaba Pordel Shahri ◽  
Stefan Miska ◽  
Reza Majidi ◽  
Evren Ozbayoglu ◽  
...  
Keyword(s):  
Stress Field ◽  
In Situ Stress ◽  
Inversion Technique ◽  
In Situ Stress Field

Study on Hydraulic Fracturing Method for In Situ Stress Measurement in Deep Boreholes

2015 ◽  
Vol 741 ◽  
pp. 567-571
Author(s):  
Yan Xin Zhang ◽  
Chang Sheng Song ◽  
Jian Hui Zhao
Keyword(s):  
Stress Field ◽  
Hydraulic Fracturing ◽  
Stress Measurement ◽  
Stress Test ◽  
In Situ Stress ◽  
Time Curve ◽  
Pressure Time ◽  
Deep Boreholes ◽  
In Situ Stress Field

Information of in situ stress field is crucial for predicting the response of rock masses to the disturbance associated with underground constructions. Hydraulic fracturing is an efficient method for determining the stress field and is suitable at the early stages of projects when no underground access exists. For this, a series of new improved techniques and equipments are developed for the deep boreholes to increase the reliability of system. For a better understanding of the stress test, the ideal HF pressure-time curve is given and the fracturing procedure is analyzed. Based on the theory of HF stress calculation, two implicit inequations are deduced.

Estimation of the present-day stress field using in-situ stress measurements in the Alxa area, Inner Mongolia for China's HLW disposal

2017 ◽  
Vol 220 ◽  
pp. 76-84 ◽  
Author(s):  
Jianju Du ◽  
Xianghui Qin ◽  
Qingli Zeng ◽  
Luqing Zhang ◽  
Qunce Chen ◽  
...  
Keyword(s):  
Stress Field ◽  
Inner Mongolia ◽  
In Situ Stress ◽  
Stress Measurements ◽  
In Situ Stress Measurements
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