bedded rock salt
Recently Published Documents


TOTAL DOCUMENTS

27
(FIVE YEARS 7)

H-INDEX

12
(FIVE YEARS 2)

Author(s):  
Mareike Henneberg ◽  
Patrick Nowara ◽  
Jörg Hammer ◽  
Janet Zulauf ◽  
Gernold Zulauf

Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2859
Author(s):  
Haitao Li ◽  
Jingen Deng ◽  
Qiqi Wanyan ◽  
Yongcun Feng ◽  
Arnaud Regis Kamgue Lenwoue ◽  
...  

Small-spacing twin-well (SSTW) salt caverns have an extensive application prospect in thin or bedded rock salt formations due to their good performance, while they are rarely used in ultra-deep formations. The target strata depth of Pingdingshan salt mine is over 1700 m, and it is planned to apply an SSTW cavern to construct the underground gas storage (UGS). A 3D geomechanical model considering the viscoelastic plasticity of the rock mass is introduced into Flac3D to numerically study the influence of internal gas pressure, cavern upper shape and well spacing on the stability of an SSTW salt cavern for Pingdingshan UGS. A set of assessment indices is summarized for the stability of gas storage. The results show that the minimum internal gas pressure is no less than 14 MPa, and the cavern should not be operated under constant low gas pressure for a long time. The cavern with an upper height of 70 m is recommended for Pingdingshan gas storage based on the safety evaluation and maximum volume. The well spacing has a limited influence on the stability of the salt cavern in view of the volume shrinkage and safety factor. Among the values of 10 m, 20 m and 30 m, the well spacing of 20 m is recommended for Pingdingshan gas storage. In addition, when the cavern groups are constructed, the pillar width on the short axis should be larger than that on the long axis due to its greater deformation in this direction. This study provides a design reference for the construction of salt cavern gas storage in ultra-deep formations with the technology of SSTW.


Energy ◽  
2021 ◽  
pp. 120968
Author(s):  
Xiong Zhang ◽  
Wei Liu ◽  
Deyi Jiang ◽  
Weibiao Qiao ◽  
Enbin Liu ◽  
...  

2021 ◽  
Author(s):  
Xiong Zhang ◽  
Wei Liu ◽  
Jie Chen ◽  
Deyi Jiang ◽  
Jinyang Fan ◽  
...  

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 12130-12145 ◽  
Author(s):  
Nan Zhang ◽  
Xilin Shi ◽  
Yun Zhang ◽  
Pengfei Shan

2020 ◽  
Vol 15 (3) ◽  
pp. 549-563 ◽  
Author(s):  
Hongwu Yin ◽  
Chunhe Yang ◽  
Hongling Ma ◽  
Xilin Shi ◽  
Nan Zhang ◽  
...  

Geofluids ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Stephen J. Bauer ◽  
W. Payton Gardner ◽  
Hyunwoo Lee

Geogenic noble gases are contained in crustal rocks at inter- and intracrystalline sites. In this study, bedded rock salt from southern New Mexico was deformed in a variety of triaxial compression states while measuring the release of naturally contained helium and argon utilizing mass spectrometry. Noble gas release is empirically correlated to volumetric strain and acoustic emissions. At low confining pressures, rock salt deforms primarily by microfracturing, rupturing crystal grains, and releasing helium and argon with a large amount of acoustic emissions, both measured real-time. At higher confining pressure, microfracturing is reduced and the rock salt is presumed to deform more by intracrystalline flow, releasing less amounts of noble gases with fewer acoustic emissions. Our work implies that geogenic gas release during deformation may provide an additional signal which contains information on the type and amount of deformation occurring in a variety of earth systems.


Energy ◽  
2017 ◽  
Vol 134 ◽  
pp. 504-514 ◽  
Author(s):  
Nan Zhang ◽  
Xilin Shi ◽  
Tongtao Wang ◽  
Chunhe Yang ◽  
Wei Liu ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document