Interpretation of gas transient pulse tests on low-porosity rocks

Liu, Mingming; Chen, Yifeng; Wei, Kai; Zhou, Chuangbing

doi:10.1093/gji/ggx272

Cited by 14 publications

(1 citation statement)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The maximum pressure at the wellhead will increase to over 22 MPa for a short well screen (Case 1), during which any possible hazards caused by pressure build-up should be considered [28]. Also the high pressure during initial gas bubble injection process can change the permeability and porosity of aquifer near the wellbore [29], which may cause the subsequent injection pressure variance. In the practice engineering, the high build-up pressure in the initial gas bubble injection process can be avoided by possible injection method or process (e.g., constant pressure injection or the intermittent injection).…”

Section: Initial Gas Bubblementioning

confidence: 99%

Numerical Investigation of the Influences of Wellbore Flow on Compressed Air Energy Storage in Aquifers

Zhang

et al. 2017

Geofluids

View full text Add to dashboard Cite

With the blossoming of intermittent energy, compressed air energy storage (CAES) has attracted much attention as a potential largescale energy storage technology. Compared with caverns as storage vessels, compressed air energy storage in aquifers (CAESA) has the advantages of wide availability and lower costs. The wellbore can play an important role as the energy transfer mechanism between the surroundings and the air in CAESA system. In this paper, we investigated the influences of the well screen length on CAESA system performance using an integrated wellbore-reservoir simulator (T2WELL/EOS3). The results showed that the well screen length can affect the distribution of the initial gas bubble and that a system with a fully penetrating wellbore can obtain acceptably stable pressurized air and better energy efficiencies. Subsequently, we investigated the impact of the energy storage scale and the target aquifer depth on the performance of a CAESA system using a fully penetrating wellbore. The simulation results demonstrated that larger energy storage scales exhibit better performances of CAESA systems. In addition, deeper target aquifer systems, which could decrease the energy loss by larger storage density and higher temperature in surrounding formation, can obtain better energy efficiencies.

show abstract

Section: Initial Gas Bubblementioning

confidence: 99%