Abstract
The overall performance of gas reservoirs and the optimization of production, as well as its sensitivity analysis, are affected by several factors such as reservoir pressure, well configuration and surface facilities. The Habiganj well no. 06 (HBJ-06) is one of the significant gas-producing vertical wells of the Habiganj gas field, currently producing 14.963 MMscfd of natural gas from the upper gas sand. The widely used Nodal analysis is an optimization technique to improve the performance and was applied for the HBJ-06 to increase its production rate by optimizing manners. By this analysis, each component starting from the reservoir to the outlet pressure of the separator was identified as a resistance in the system by evaluating their inflow performance relationship and vertical lift performance. The F.A.S.T. VirtuWell™ software package was used to perform this analysis, where the declinations of wellhead pressures were suggested as 1300, 1200, 1100 and 1000 psi(a) without any modification of the tubing diameter and skin factor. Hence, the respective optimized rates of the daily gas production were increased to 38.481, 40.993, 43.153 and 46.016 MMscfd. At the same time, the optimized condensate gas ratio was calculated as 0.07, 0.06, 0.06 and 0.05, associated with the optimized condensate water ratio of 0.11, 0.10, 0.09 and 0.08, respectively.
Highlights
Energy is an essential prerequisite in industrialization for accomplishing or promising innovative change, economic development, automation and move through the industrialized part all over the world
Production can be optimized by the different approach; Nodal analysis is a method for setting up a well for the generation of oil and/or gas from the reservoir to accomplish the best conceivable proficiency, which was first used by Beggs (2003) in the book of “Production Optimization
This study considers the reduction in well pressure upon the Habiganj gas field
Summary
Energy is an essential prerequisite in industrialization for accomplishing or promising innovative change, economic development, automation and move through the industrialized part all over the world. Production can be optimized by the different approach; Nodal (or NODAL) analysis is a method for setting up a well for the generation of oil and/or gas from the reservoir to accomplish the best conceivable proficiency, which was first used by Beggs (2003) in the book of “Production Optimization. Using NODAL Analysis” (Mohaghegh 2011; Sylvester et al 2015) It is defined as a systemic approach to the optimization of oil and gas wells, which is used to evaluate a complete production system thoroughly. The F.A.S.T. VirtuWellTM is a software package that is used to model, analyze and optimize flow in the wellbores. It allows performing the single and multiphase flow calculations for different wellbore geometries such as vertical, slant, horizontal or complex configurations
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