In order to clarify the tectonic evolution process of early Hercynian and its control on the fracture-cave formation and hydrocarbon accumulation, the structural characteristics, palaeodrainage distribution and fracture-cave configuration types in…
The sequential excavation method (SEM) is extremely useful for excavating caverns with high sidewalls and large spans. A new SEM for excavating large-scale underground water-sealing oil storage caverns and protecting groundwater level is proposed.…
Underground water-sealed storage cavern is an important way for petroleum strategic reserve in China, which owns lots of outstanding advantages, such as low operating costs, high safety, and land resource conservation. As the major structure in…
The effects of operating pressure and ground stress on the seepage parameters (permeability and porosity) of surrounding rock and stability and tightness of salt cavern have been investigated, and a method is proposed for safe operating pressure…
To address flow-induced vibration failure problems of leaching tubing in salt cavern underground gas storage, a nonlinear flow-induced vibration model of the leaching tubing in salt cavern gas storage was established using the energy method, element…
Salt cavern gas storage is an important strategic method to shave the fluctuation of supply- demand of natural gas in China. However, due to low grades of salt beds, there remains lots of insoluble sediments accounting for 1/3 up to 2/3 of the…
In order to prevent the increase of Cl- concentration caused by seawater intrusion to affect the service life of underground water-sealing oil storage caverns, the evaluation and control methods of seawater intrusion are studied based on the…
Geological H2 storage plays a central role to enable the successful transition to the renewable H2 economy and achieve net-zero emission in the atmosphere. Depleted oil and gas reservoirs are already explored with extensive reservoir and operational…
Sandia National Laboratories has long used the Munson-Dawson (M-D) model to predict the geomechanical behavior of salt caverns used to store oil at the Strategic Petroleum Reserve (SPR). Salt creep causes storage caverns to deform inward, thus losing…
to balance the intermittent of renewable power, large-scale energy storage in underground salt caverns can be utilized. And the construction and safety evaluations for these caverns become necessary. Aimed at the bedded salt rocks for energy storage,…
With the rapid development of the global economy and the adjustment of energy structure, the demand for underground salt cavern gas storage is particularly urgent. The technology of double-well cavity creation with small well spacing is a relatively…
Underground water-sealed oil-storage caverns still face many challenges after completion, such as oil leakage and excessive water inflow into caverns. However, there is a lack of high quality and efficient operation precedent for large-scale…
Compressed air energy storage (CAES) is a promising energy conversion storage technology and underground salt caverns are recognized as the appropriate storage places for it. The reduction of air during the withdrawal periods leads to the surrounding…
Using nitrogen as the blanket for the construction of a gas storage salt cavern by the solution mining under gas (SMUG) method has many advantages, such as improved safety, enhanced environmental protection and better economy. A critical issue for…
Underground petroleum storage caverns with the containment of groundwater is one of the methods for storage of petroleum. In the construction process of large water sealing petroleum storage caverns, the appearance of engineering excavation changes…
Underground salt caverns provide appropriate space for storing natural gas. However, salt caverns have to be constructed in bedded salt formations in China. The traditional construction method of salt cavern encounters serious problems in such…
To fully utilize the abandoned salt cavern resources and to increase the total amount of the fossil energy reserve of China, reconstructing some of these salt caverns for underground gas storage (UGS) or strategic petroleum reserve (SPR) would be an…
Sandia National Laboratories has long used the Munson-Dawson (M-D) model to predict the geomechanical behavior of salt caverns used to store oil at the Strategic Petroleum Reserve (SPR). Salt creep causes storage caverns to deform inward, thus losing…
With the rapid development of the global economy and the adjustment of energy structure, the demand for underground salt cavern gas storage is particularly urgent. The technology of double-well cavity creation with small well spacing is a relatively…
This paper presents a case study of the effect of an abandoned cavern of large diameter on the long-term stability of an oil storage facility in domal salt. The U.S. Strategic Petroleum Reserve stores crude oil in solution-mined caverns in the Bryan…
Incoherent results of in-situ stress measurements and their implications in designing a crude oil storage caverns project are presented in this paper. Core-discing at depths corresponding to abnormally higher stress magnitude values were observed at…
The geotechnical performance of a pilot unlined crude oil storage caverns in granite is assessed using finite element method. Laboratory and field tests were performed to determine the geotechnical properties of the granite. Numerical simulations…
The current status and development trend of natural gas pipelines and storage in China is summarized briefly. With the development of economy, the natural gas demand in China increases rapidly
Compressed air energy storage (CAES) is a promising energy conversion storage technology and underground salt caverns are recognized as the appropriate storage places for it. The reduction of air during the withdrawal periods leads to the surrounding…
Using nitrogen as the blanket for the construction of a gas storage salt cavern by the solution mining under gas (SMUG) method has many advantages, such as improved safety, enhanced environmental protection and better economy. A critical issue for…
• A quantitative index is proposed to evaluate containment efficiency. • An evaluation method for containment efficiency is presented. • The containment efficiency is conducted based on water curtain system (WCS) optimization. • The influences of WCS…
Siting a new underground water-sealed crude oil storage adjacent to an existing one is a potential way to increase the capacity of strategic energy storage. The study presented herein is a comprehensive case study to assess the water-sealed safety on…