Kwon Gyu Park
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View article: Soil CO<sub>2</sub> Monitoring Around Wells Discharging Methane
Soil CO<sub>2</sub> Monitoring Around Wells Discharging Methane Open
Soil(vadose zone) gas compositions were measured for about 3 days to suggest a method for monitoring and interpreting soil gas data collected around wells from which methane(CH 4 ) is outflowing.The vadose zone gas samples were collected w…
View article: Test Processing of Seismic Monitoring using Sleipner 4D Data
Test Processing of Seismic Monitoring using Sleipner 4D Data Open
시간경과 탄성파 모니터링 기법의 국내 활용 가능성을 확인하기 위하여, 슬라이프너 CCS 프로젝트의 탐사자료에 적용하고 분석하였다. 입력에 활용한 탄성파 4D 자료는 1994년 취득된 기준 자료와 2008년 취득된 모니터링 자료로 구성된다. 기준 자료와 모니터링 자료의 차이를 계산한 결과 지하에 주입된 이산화탄소의 부존 영역이 탄성파 진폭 변화로 뚜렷하게 확인되었다. 4D 처리 모듈 중 시간 변화 진폭 회수와 평활화 모듈의 입…
View article: Protection and Installation of FBG Strain Sensor in Deep Boreholes for Subsurface Faults Behavior Monitoring
Protection and Installation of FBG Strain Sensor in Deep Boreholes for Subsurface Faults Behavior Monitoring Open
Fiber optic sensors are gradually replacing electrical sensors in geotechnical applications owing to their immunity to electrical interference, durability, and cost-effectiveness. However, additional protective measures are required to pre…
View article: Distributed Temperature Sensing Monitoring of Well Completion Processes in a CO2 Geological Storage Demonstration Site
Distributed Temperature Sensing Monitoring of Well Completion Processes in a CO2 Geological Storage Demonstration Site Open
The Distributed Temperature Sensing (DTS) profiles obtained during well completion of a CO2 monitoring well were analyzed to characterize each well completion process in terms of temperature anomalies. Before analysis, we corrected the dep…
View article: Twisted Dual-Cycle Fiber Optic Bending Loss Characteristics for Strain Measurement
Twisted Dual-Cycle Fiber Optic Bending Loss Characteristics for Strain Measurement Open
The intensity-based fiber optic sensor (FOS) head using twisted dual-cycle bending loss is proposed and experimentally demonstrate. The bending loss characteristics depend on the steel wire radius, number, and distance. To determine the ef…