| Specifications | 110620_Flyer_VibroHeat_EN dillon |
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| Specifications | 110620_Flyer_VibroHeat_EN dillon |
| Business section |
| Specifications | 110620_Flyer_VibroHeat_EN dillon |
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| Content | Figure1:Temperaturerecording Figure2:Temperatureand conductivityvs. depth Figure3:Thermal resistancevs. temperature Processing of heat flow data Figure 1shows a typical plot of thermistorreadings versus time. During penetration (approx. Sec 0 –100), temperature is rising due to frictional heating and convergence towards sediment temperatures. After 7 minutes (sec. 420), a defined heat pulse is released and the heat is allowed to dissipate until equilibrium is reached respectively is sufficiently approximated. Figure 2(left) shows the thermal gradient (temperature versus depth) derived from temperature approximations around sec. 400 from Figure 1. The center of figure 2 depicts the depth dependent thermal conductivities derived form heat pulse thermal decay. (right) shows the thermal diffusivity depth profile. Figure 3(Bullard Plot) compares integrated thermal resistance with temperature. The interpretation of this data allows to decide whether heat flow is purely conductive (linear relationship) or whether other mechanisms like advection are involved. The latter would point to, for example, fluid flow processes. Figure 4shows temperature profiles across a gas hydrate reservoir. Profiles ‚Pen 3‘and ‚Pen 4‘show strong deviations from linear depth dependence indicating enhanced advection processes. Technical Facts of the VibroHeatdevice Up to 5,5 m penetration depth Optimized for shallow water operations up to 200m water depth (e.g. North Sea or Baltic Sea) Containerized dimensions Sensor string with 22 temperature sensors Range -2°C to 60°C resolution < 1 mK, accuracy +/-2mK Sampling frequency 1Hz Power pack, data acquisition and autonomous control integrated on the head of the Vibrocorer, online or memory based data recording. Autonomous and online control modes Quality check and online data evaluation with deck unit FIELAX HeatFlowProbeSurvey Experience 2011 FugroConsult GmbH, Germany: Cable survey, North Sea 2010 50Hertz Transmission GmbH, Germany: Shallow water cable survey, Baltic Sea 2010 GardlineMarine Science Ltd, UK: O&G exploration for ExxonMobil, Black Sea 2009 HRT Petroleum, Brazil and GEMS, Colombia: O&G exploration for Ecopetroloff Colombia 2008 RV Poseidon cruise P362/2 and RV Sonnecruise SO195 2007 IfMGEOMAR, Germany: O&G exploration for DEA, West Niledelta 2006 GEUS, Denmark: Geothermal investigation of hydro- carbon bearing basins off West Greenland 2005 RV Meteor cruise M66/3b: Deep water exploration off Nicaragua and Costa Rica (>4000m) Figure4:Temperatureprofilesacrossgas hydrates |
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| Following Datasheets | 110622_Flyer_THERMAL_PROBES_EN_4 (2 pages) 110715_s (1 pages) 110725_CPD_AN_4P-10 (4 pages) 110811AdobeFinancialAnalystMeeting (3 pages) 110_Inserts_Cut_Sheet (1 pages) 110_Office_Box_Cut_Sheet (1 pages) 111511AdobeGartnerWCM (2 pages) 1116026-Customer_Drawing-RevB (1 pages) 1116027-Customer_Drawing-RevB (1 pages) 1116028-Customer_Drawing-RevB (1 pages) |
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