Prediction of Pressure and Temperature in CO2 Injection Wells Based on Analytical Modeling - Tchouka Singhe, Arron A.
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Injection into geological formations is seen by many as a short to medium term measure to reduce emissions of CO2 to the environment and as such to slowdown the pace of global warming. The injection process requires that the fluid flows effectively into the host formation. To this end it is very important to accurately predict the pressure and temperature of the fluid along the well and especially at the bottom of the hole. In the present dissertation a rigorous procedure to estimate fluid pressure and temperature along CO2 injection wells has been developed based on analytical modeling. The…mehr

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Produktbeschreibung
Injection into geological formations is seen by many as a short to medium term measure to reduce emissions of CO2 to the environment and as such to slowdown the pace of global warming. The injection process requires that the fluid flows effectively into the host formation. To this end it is very important to accurately predict the pressure and temperature of the fluid along the well and especially at the bottom of the hole. In the present dissertation a rigorous procedure to estimate fluid pressure and temperature along CO2 injection wells has been developed based on analytical modeling. The procedure accommodates wellbores of varying diameter, varying deviation angles, non-uniform tubing strings and layered formations with different thermal properties and varying geothermal gradients. To test the models, computer codes have been written with Visual Basic.Net language on the Microsoft Visual Studio Platform. The codes are encapsulated in a user-friendly Graphical User Interface. The simulated results are compared with field observed data from a shallow aquifer injection vertical well in Germany (Ketzin) and that from a relatively deeper offshore aquifer injection slanted well in Norway (Snøhvit). The maximum deviation is around 2% for pressure and around 10% for temperature.
Autorenporträt
- Born in Cameroon - Completed primary and secondary school in Cameroon - Started chemical engineering studies at the Rivers State University of Science and Technology in Nigeria in 1997, and completed in 2002 with a Bachelor of Technology (B. Tech) - Worked for an oil service company in Cameroon from 2002 to 2005 - Started Petroleum Engineering studies at the Clausthal University of Technology (TU-Clausthal) in 2005 and completed in 2007 with a Master of Science (MSc) - Worked as Scientist at the Institute of Petroleum Engineering of TU-Clauthal and at the Energy Research Center of Lower Saxony (EFZN) between 2008 and 2013 - Obtained degree of Doctorate of Engineering in Petroleum Engineering in 2012 - Working since May 2013 as petroleum reservoir simulation specialist in an Oil and Gas Exploration & Production company in Germany