Fluid flow in the South Eugene Island area,offshore Louisiana: results of numerical simulations |
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| Institution: | 1. Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China;2. Research Institute of Petroleum Exploration and Development, Tarim Oil Field Company, PetroChina, Korla, China;1. Department of Geology, University of Malaya, Kuala Lumpur, 50603, Malaysia;2. Department of Geology and Petroleum Geology, University of Aberdeen, Aberdeen, AB24 3UE, Scotland, UK;3. Geology Department, Faculty of Applied Science, Taiz University, Taiz, 6803, Yemen;4. Department of Geology, Federal University, Lokoja, P.M.B 1154, Nigeria;1. Aix-Marseille Université, CNRS, IRD, CEREGE UM34, 13545 Aix en Provence, France;2. IRSN, Avenue du Général Leclerc, BP 17, 92262 Fontenay-aux-Roses, France;3. TOTAL, CSTJF, Avenue Larribau, 64018 Pau, France;1. Dhahran, Saudi Arabia;2. Universiti Teknologi PETRONAS, Malaysia;3. King Fahd University of Petroleum and Minerals, Saudi Arabia |
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| Abstract: | Numerical simulations of heat and fluid transport in the South Eugene Island (SEI) area, offshore Louisiana, suggest fluids migrate from deep, abnormally pressured sediments, along fault zones, and into overlying oil and gas reservoirs. In the simulations, fluid flow along the fault produces a narrow thermal anomaly around the fault. A negative thermal anomaly forms adjacent to the thermal maximum when permeable sediments dip away from the fault zone. In the simulations, this negative thermal anomaly dissipates 100–200 years after it forms. The presence of a similar negative thermal anomaly in the SEI area suggests that fluid movement in the area is a recent event. The observation that the thermal maximum in the study area is not centered about the fault zone further suggests that the primary vertical conduit for fluid flow in the SEI area is not a major fault but minor splay faults in the hanging wall. |
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