If a well loses it producing potential before depletion, then the pressure analysis of the well system should be carried out to ascertain the cause. Nodal analysis, is one of the analysis methods which is aimed at analysing pressure distributions across different nodes. This analysis will serve as a guide to revamping the well. This paper utilizes nodal analysis simulation approach to study the cause of pressure drop in a well system. Inflow performance relation (IPR) and vertical lift performance (VLP) were used to determine the pressure distribution in the well attainable at various flow rates and wellbore condition. Results show that nodal analysis method can be used to obtain prevailing well bottom hole pressures at various flow rate, the flow rates responsible for a unit pressure drop in a well system, the pressure loss across perforation and tubing using IPR and VLP of the well system respectively. Well completion strategies are adequately advisable from application of nodal analysis.

Considering that well test is an asset evaluation tool, condensate well testing is designed to address the uncertainties in retrograde performance with respect to various flow regimes under certain completion strategies and surface facility design. Condensate banking/trapping around the near wellbore due to liquid dropout (heavy end fraction condensation resulting to high reduction in effective gas permeability), the desire critical condensate saturation to re-establish mobility, the effect of interfacial tension and the capillary pressure present between the immiscible fluids can be observed and possibly addressed from well testing and analysis. A designed pressure scheme suitable to reduce productivity losses is adequately advisable from well test. Well test (which is a variation in sand phase pressure with time) can be used to determine: the dynamism in rock and fluid properties, underground withdrawals and cash flow. It could also serve as a factor for joint venture agreement and sale/purchase of assets. These achievements are based on excellent reservoir/well management initiated by accurate performance interpretation and forecast. The discussion of this paper is centered in the use of production testing and analysis for enhance condensate reservoir/well management. Various evaluation criteria's (Reservoir Deliverability, Well Productivity and Completion Strategies) were deployed in the characterization of the reservoir/well performance using simulated field data. However, back pressure, process facility design, surface data recordings and sample analysis under selected surface operating conditions were used to simulate the well stream process. This research has been able to shown that: production well testing and analysis can be used to determine the maximum attainable drawdown that will increase production and delay condensate liquid dropout around the wellbore. The similarities and variations in the results obtained from Maximum Efficiency Rate (MER) test and Bottom Hole Pressure (BHP) test as regards the aforementioned criteria's considering condensate behavior and the necessary maintenance (pressure, completion, wellhead etc) that will be required to sustain and/or improve production performance has been discussed.