This thesis evaluates the performance of horizontal wells versus vertical wells on a field deep-offshore Nigeria. Several well placement scenarios involving water injectors and oil producers were built using Petrel 2014, then the cases were tested through a common reservoir simulator, namely Eclipse 2014. Intuitive judgement coupled with analysis of the properties of reservoirs 207 and 096CC static models oriented the selection of the wells’ location and spacing. Ultimate recovery was optimized based on a trial-error approach with the displacement of wells throughout the areas of interest. This study has been carried to contribute to the efforts made for the success of the initial development of XSW/A field housed in X field. The simulation work is done on a XM field because it is currently producing and it is an analogue of the XSW/A, which has not yet produced first oil.
Results show that when compared to vertical wells, horizontal wells allow an increase of the total oil produced per well in all scenarios, due a better sweep efficiency. However, an economic analysis relying on the value of the unit technical cost and the 2005 oil price, proves that although all scenarios are economical, they are not worth any investment since they will bring lower profits than vertical wells.
|Commitee:||Feng, Yin, Seibi, Abdenour|
|School:||University of Louisiana at Lafayette|
|School Location:||United States -- Louisiana|
|Source:||MAI 55/03M(E), Masters Abstracts International|
|Keywords:||Eclipse, Petrel, Reservoir, Simulation, Well placement|
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