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Lehua Pan
Lawrence Berkeley National Laboratory
GeologyGeotechnical engineeringVadose zoneHydrologyPetroleum engineering
92Publications
23H-index
1,345Citations
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Publications 92
Newest
#2Stefan FinsterleH-Index: 30
Last. Lehua Pan (LBNL: Lawrence Berkeley National Laboratory)H-Index: 23
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Abstract The capabilities to efficiently model the transport of mass and heat in geothermal reservoirs at supercritical conditions are necessary to support the efforts to explore and utilize supercritical hydrothermal systems, as well as to extend the utilization of existing geothermal fields at greater depths, where supercritical temperatures might be encountered. Similar capabilities are needed to model the flow in wells producing supercritical fluids, possibly in a coupled way with the reserv...
Source
#1Yinping Hao (LBNL: Lawrence Berkeley National Laboratory)
#2Qing He (NCEPU: North China Electric Power University)H-Index: 1
Last. Curtis M. Oldenburg (LBNL: Lawrence Berkeley National Laboratory)H-Index: 42
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#1Curtis M. Oldenburg (LBNL: Lawrence Berkeley National Laboratory)H-Index: 42
#2Lehua Pan (LBNL: Lawrence Berkeley National Laboratory)H-Index: 23
Author(s): Oldenburg, Curtis M; Pan, Lehua | Abstract: © 2019 Society of Chemical Industry and John Wiley a Sons, Ltd. Growing interest in offshore geologic carbon sequestration (GCS) motivates evaluation of the consequences of subsea CO2 well blowouts. We have simulated a hypothetical major CO2 well blowout in shallow water of the Texas Gulf Coast. We use a coupled reservoir-well model (T2Well) to simulate the subsea blowout flow rate for input to an integral model (TAMOC) for modeling CO2 tran...
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#1Curtis M. Oldenburg (LBNL: Lawrence Berkeley National Laboratory)H-Index: 42
#2Lehua Pan (LBNL: Lawrence Berkeley National Laboratory)H-Index: 23
Source
#1Curtis OldenburgH-Index: 1
#2Lehua PanH-Index: 23
Last. Alan D. EastmanH-Index: 1
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Author(s): Oldenburg, Curtis; Pan, Lehua; Muir, Mark; Eastman, Alan | Abstract: Closed-loop heat exchange for geothermal energy production involves injecting working fluid down a well that extends through the geothermal resource over a significant length to absorb heat by conduction through the well pipe. The well then needs to return to the surface for energy recovery and fluid re-injection to complete the cycle. We have carried out mixed convective-conductive fluid-flow modeling using a wellbo...
1 Citations
#1Curtis M. Oldenburg (LBNL: Lawrence Berkeley National Laboratory)H-Index: 42
#2Lehua Pan (LBNL: Lawrence Berkeley National Laboratory)H-Index: 23
Last. Lee H. Spangler (MSU: Montana State University)H-Index: 28
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Author(s): Oldenburg, Curtis; Pan, Lehua; Zhou, Quanlin; Dobeck, Laura; Spangler, Lee | Abstract: © 2019 Society of Chemical Industry and John Wiley a Sons, Ltd. Carbon dioxide (CO 2 ) extraction from deep reservoirs is currently important in CO 2 enhanced oil recovery (EOR) and may become more important in the future if interim CO 2 storage becomes common. In late 2014, we were involved in a production test of liquid CO 2 from the Middle Duperow dolostone at Kevin Dome, Montana. The test result...
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#1Yoojin Jung (LBNL: Lawrence Berkeley National Laboratory)H-Index: 6
#2Christine Doughty (LBNL: Lawrence Berkeley National Laboratory)H-Index: 28
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Author(s): Jung, Y; Doughty, C; Borgia, A; Lee, KJ; Oldenburg, CM; Pan, L; Daley, TM; Zhang, R; Altundas, B; Chugunov, N; Ramakrishnan, TS | Abstract: © 2018 Elsevier Ltd With the goal of detecting and characterizing faults and fractures in enhanced geothermal systems (EGS), a new technology involving CO2 push-pull testing, active-source geophysical imaging, and well logging has recently been proposed. This technique takes advantage of (1) the contrasting properties of supercritical CO2 and wate...
1 CitationsSource
#1Kyung Jae Lee (LBNL: Lawrence Berkeley National Laboratory)H-Index: 5
#2Curtis M. Oldenburg (LBNL: Lawrence Berkeley National Laboratory)H-Index: 42
Last. Nikita ChugunovH-Index: 7
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Author(s): Lee, KJ; Oldenburg, CM; Doughty, C; Jung, Y; Borgia, A; Pan, L; Zhang, R; Daley, TM; Altundas, B; Chugunov, N | Abstract: © 2018 Elsevier Ltd Characterizing the faults and fractures that provide flow pathways for efficient geothermal energy production is critical for design of sustainable geothermal energy production. Both natural faults and stimulated fractures in enhanced geothermal systems (EGS) are difficult to image and map by seismic methods because hot brine filling the fractur...
Source
#1Jingrui Wang (BNU: Beijing Normal University)
#2Litang Hu (BNU: Beijing Normal University)H-Index: 10
Last. Keni Zhang (LBNL: Lawrence Berkeley National Laboratory)H-Index: 21
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Industrial-scale geological storage of CO2 in saline aquifers may cause CO2 and brine leakage from abandoned wells into shallow fresh aquifers. This leakage problem involves the flow dynamics in both the wellbore and the storage reservoir. T2Well/ECO2N, a coupled wellbore-reservoir flow simulator, was used to analyze CO2 and brine leakage under different conditions with a hypothetical simulation model in water-CO2-brine systems. Parametric studies on CO2 and brine leakage, including the salinity...
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#1Lehua Pan (LBNL: Lawrence Berkeley National Laboratory)H-Index: 23
#2Curtis M. Oldenburg (LBNL: Lawrence Berkeley National Laboratory)H-Index: 42
Last. Preston D. Jordan (LBNL: Lawrence Berkeley National Laboratory)H-Index: 7
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Abstract A blowout of the Sesnon Standard-25 well (SS-25; API 03700776) at the Aliso Canyon Underground Gas Storage Facility, first observed on October 23, 2015, eventually resulted in emission of nearly 100,000 tonnes of natural gas (mostly methane) to the atmosphere. Several thousand people were displaced from their homes as the blowout spanned 111 days. Seven attempts to gain pressure control and stop the gas flow by injection of heavy kill fluids through the wellhead failed, a process referr...
2 CitationsSource
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