...-coarse description while respecting the mine geometry and volume. The voxel characteristic at the cavern wall is removed, resulting in a mesh, composed entirely of bricks, accurately representing the cavern geometry. 1. INTRODUCTION Sonar surveys of solution-mined caverns, typically situated in salt...

... ABSTRACT: Underground caverns in salt formations are promising geologic features to store hydrogen (H 2 ) because of salt's extremely low permeability and self-healing behavior. Successful salt-cavern H2 storage schemes must maximize the efficiency of cyclic injection-production while...

... ABSTRACT: A hanging string is the center pipe or tube in a storage cavern. It is situated inside of a cemented casing and, in conjunction with the cemented casing, is used to move product (crude oil, propane, natural gas, etc.) into and out from the storage cavern. When the injected fluid...

... ABSTRACT: Salt caverns play an important part in large-scale energy storage, and their planning and economic evaluation have primary importance. Worldwide reserves of rock salt typically reside in graben or half-graben basins. However, different interlayers (IL) and tectonic faults (TF...

... ABSTRACT: Compressed Air Energy Storage (CAES) in caverns is gaining prominence for its role in ensuring grid stability by storing surplus energy and releasing it as needed, thus addressing the intermittent nature of renewable energy sources. However, existing research on CAES caverns...

... ABSTRACT: For some years now, the world has been facing the challenge of achieving an energy turnaround in the coming years. In this context, renewable energies are increasingly coming into focus, also with regard to the construction and operation of storage caverns in rock salt. In order...

... requires, at a minimum, a second-order tensor state variable. geology geological subdiscipline plasticity deformation reservoir geomechanics cavern quantity potash dilation creep geologist assumption simulation reservoir characterization coefficient consideration tensor software...

... in greater vertical displacements in the cavern salt and it is also observed that greater displacements occurred at the corners of the cavity due to stress concentration in those regions. The casing and the cements experience extreme stress, with casing stress close to the yield stress and the cement...

... ABSTRACT: We develop a two-dimensional (2D) numerical model to analyse the impact of fracture networks on the behaviour of pressurised lined rock caverns (LRCs). We use the discrete fracture network (DFN) approach to represent the fracture system in rock. The LRC consisting of an inner steel...

... ABSTRACT: Hydrogen-based solutions are gaining importance as a renewable clean energy source. A geomechanical challenge when hydrogen storage in salt caverns is considered is the cyclic loading and unloading of the host rock (rocksalt). As hydrogen is stored and removed based on fluctuating...

... facilities to meet the daily demand for peak power regulation. Utilizing the dissolved cavity of salt rock layers to build underground salt cavern energy storage presents an economical and reliable solution due to the low permeability and self-repairing properties of salt rock. Nevertheless, most salt rock...

... incorporating karst caverns, identifying that the size of these caverns and the differential in-situ stress significantly affect hydraulic fracture behavior, with larger cavern volumes impeding fracture propagation and resulting in notable pressure drops within the fracturing curve. Utilizing ABAQUS, Lin (2019...

... ABSTRACT Underground storage cavern has been increasingly exploited as it has many advantages such as reducing investment, economizing land use and improving safety compared with storage above the ground surface. We employ the hydromechanical coupled FDEM to simulate the excavation...

... ABSTRACT Sandia National Laboratories has conducted geomechanical analysis to evaluate the performance of the Strategic Petroleum Reserve by modeling the viscoplastic, or creep, behavior of the salt in which their oil-storage caverns reside. The operation-driven imbalance between fluid...

.... This significantly complicates large-scale storage using chemical and physical methods. Aquifers, salt caverns, and depleted/abandoned oil and gas fields are some of the subsurface options that can be used to store hydrogen underground because they possess the requisite volumes to store H 2 at higher pressures...

... ABSTRACT Underground hydrogen storage could provide buffer capacity to store the excess energy from renewable resources. A lined rock cavern (LRC) is one of the hydrogen geologic storage site options. It offers great flexibility because it does not rely on the existence of salt caverns...

... ABSTRACT: As a new type of cavern, small-spacing twin well (SSTW) salt cavern has an extensive application prospect in underground gas storage (UGS) due to its good performance such as rapid construction rate, adaptability of thin salt layer, and high injection-production efficiency. While...

... ABSTRACT: The knowledge of possible fracture formation and propagation in rock salt caverns is an important aspect for their safety-oriented design. During gas withdrawal the internal pressure is reduced and the associated cooling of the gas and thus also of the cavern wall cause a reduction...

... ABSTRACT: The well spacing and the brine concentration are crucial for the volume and morphology of the two-well salt cavern gas storage by affecting dissolution rate of the cavity. However, it is hard to directly monitor the brine concentration inside the cavity. This study uses the classical...

... deposit in China has good sealing properties, and is an ideal solution mining area for the construction of salt rock gas storage. Salt rock has extremely low permeability and self-repairing properties, which greatly increase the sealing performance of the gas storage. Underground salt cavern hydrogen...