Experimental study on repair characteristics of damaged rock salt of underground gas storage

2019 ◽  
Vol 26 (8) ◽  
pp. 2185-2196 ◽  
Author(s):  
Hong-wu Yin ◽  
Hong-ling Ma ◽  
Xi-lin Shi ◽  
Hao-ran Li ◽  
Xin-bo Ge ◽  
...  
Keyword(s):  
Experimental Study ◽  
Rock Salt ◽  
Gas Storage ◽  
Underground Gas Storage

Evolution of Capillarity and Relative Permeability Hysteresis

1972 ◽  
Vol 12 (01) ◽  
pp. 28-38 ◽  
Author(s):  
J. Colonna ◽  
F. Brissaud ◽  
J.L. Millet
Keyword(s):  
Experimental Study ◽  
Porous Medium ◽  
Capillary Pressure ◽  
Gas Storage ◽  
Experimental Results ◽  
Hydrodynamic Characteristics ◽  
Underground Gas Storage ◽  
Schematic Representation ◽  
The Core ◽  
History Of

Abstract Some features of the behavior of underground storage of natural gas in aquifers have shown the important influence of the modifications occurring in the distribution of fluids inside the pores of the reservoir space on the evolution of the gas bubble during the successive cycles of production. We have performed experimental work to study systematically the effects of alternate displacements of water and gas on the hydrodynamic characteristics of rock. We have measured the distribution of the liquid and gas phases in the porous medium and the corresponding permeabilities in relationship with the available capillary pressures. These parameters were examined during various combined parameters were examined during various combined cycles of drainage and imbibition. A schematic representation of the behavior of the porous medium, based on experimental results, is porous medium, based on experimental results, is presented It allows a satisfactory extrapolation for presented It allows a satisfactory extrapolation for the prediction of the evolution of the hydrodynamic rock characteristics in the case of a given history of alternated fluid displacements. The integration of this previsional scheme into the mathematical models used in reservoir engineering should be preceded by a preliminary study of the sensitivity of the reservoirs to certain parameters of the scheme in order to perform parameters of the scheme in order to perform eventual simplifications. Introduction Important developments in the study of underground gas storage facilities have shown a series of problems that, although not specific to gas storages, problems that, although not specific to gas storages, have acquired a renewed importance. Particularly important is the concept involving the evolution of the hydrodynamic characteristics of a rock submitted to multicycle two-phase displacements. Indeed it appears that a reliable prediction of the behavior of an underground gas storage in aquifer, submitted to a cyclical mode of exploitation, may be obtained only if it is recognized that, at every point in the storage, the relationships among point in the storage, the relationships among permeability, saturation and capillary pressure are permeability, saturation and capillary pressure are a function of the past history of fluid movements at this point. Based on results from experimental study, we attempt to define a theoretical experimental model that can predict the hydrodynamic characteristics of a porous formation. The model is designed to use a minimum number of measurements and to take into account all circumstances surrounding the evolution of the formation's hydrodynamic characteristics. This work is a continuation of an experimental study undertaken by Gaz de France and represents a further attempt to develop a greatly simplified model that can account for the above mentioned behavior. The result is the introduction in the model of a schematic representation, based on an interpretation of physical measurements that confirms the importance of hysteresis in the main hydrodynamic properties of a rock. The physical model thus developed will allow a satisfactory prediction of these characteristics. prediction of these characteristics. EXPERIMENTAL METHOD APPARATUS AND EXPERIMENTAL TECHNIQUE Various combinations of drainage and imbibition cycles aimed at creating a series of situations resulting from the exploitation of a gas storage have been studied on two large-dimensional sandstone samples:a Vosges sandstone anda well consolidated Hassi R'Mel sandstone. The experimental apparatus used is similar to that used by Rapoport and Leas. The pressure pw of be wetting phase initially saturating the sample is set by means of a constant level device located close to the upper end of the core and connected to the sample by semipermeable partitions: (1) pw2 = Pa (atmospheric pressure) on the upperend of the core (output of the gas) . SPEJ P. 28

Experimental study on stress sensitivity of underground gas storage

2020 ◽  
Vol 195 ◽  
pp. 107577
Author(s):  
Jiaxin Shao ◽  
Lijun You ◽  
Yili Kang ◽  
Xinping Gao ◽  
Mingjun Chen ◽  
...  
Keyword(s):  
Experimental Study ◽  
Gas Storage ◽  
Stress Sensitivity ◽  
Underground Gas Storage

Feasibility analysis of using closely spaced caverns in bedded rock salt for underground gas storage: a case study

2016 ◽  
Vol 75 (15) ◽  
Author(s):  
Chunhe Yang ◽  
Tongtao Wang ◽  
Jianjun Li ◽  
Hongling Ma ◽  
Xilin Shi ◽  
...  
Keyword(s):  
Rock Salt ◽  
Gas Storage ◽  
Feasibility Analysis ◽  
Underground Gas Storage ◽  
Bedded Rock Salt ◽  
Bedded Rock

Stability evaluation of underground gas storage salt caverns with micro-leakage interlayer in bedded rock salt of Jintan, China

2020 ◽  
Vol 15 (3) ◽  
pp. 549-563 ◽  
Author(s):  
Hongwu Yin ◽  
Chunhe Yang ◽  
Hongling Ma ◽  
Xilin Shi ◽  
Nan Zhang ◽  
...  
Keyword(s):  
Rock Salt ◽  
Gas Storage ◽  
Stability Evaluation ◽  
Underground Gas Storage ◽  
Bedded Rock Salt ◽  
Bedded Rock ◽  
Salt Caverns

scholarly journals Cartographic support of design, construction and operation of underground gas storage in rock salt

2019 ◽  
Vol 1 ◽  
pp. 1-2
Author(s):  
Tamara V. Vereshchaka ◽  
Marina Y. Bakanova ◽  
A. L. Stepanchenko
Keyword(s):  
Rock Salt ◽  
Gas Storage ◽  
Topographic Map ◽  
Thematic Maps ◽  
Underground Gas Storage ◽  
Entire Complex ◽  
New Type ◽  
Anthropogenic Processes ◽  
Surface Figure ◽  
Design Construction

<p><strong>Abstract.</strong> Investigated the directions of use of topographic maps and requirements for them at different stages of design, construction and operation of underground gas storages in rock salt – one of the most important parts of Russia's Unified gas supply system. The specificity, complexity and diversity of cartographic support of this industry emphasized. A new type of topographic map is proposed, the content of which is subjected specially to the purpose of creating underground gas storage with the display of information about the objects of the entire complex of storage, their parameters, and data about development of dangerous natural and anthropogenic processes.</p><p>The system of notation conventions is developed: a) wells of various type and purpose, their characteristics; b) underground and surface objects of storage in the form of water-brine and technological complexes, pipelines for various purposes; c) environmental monitoring facilities, specially protected areas. The necessity substantiated to supplement the main original of the map with text characteristics with thematic maps-insert and 3-D models (figure 1).</p><p>As the most current thematic maps are considered: the depth and power of the salt rocks (figure 2); the calculated subsidence trough of the earth's surface (figure 3); the zone of maximum spread of the construction of the brine and mineralization of groundwater (figure 4).</p><p>In general, all the presented developments characterize a new type of specialized topographic map for the design, construction and operation of underground gas storage.</p>

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