Applying hydrodynamic principles and flow theory to optimize the reservoir pressure survey program without shut-in the well - Case study: Biba reservoir, Algeria

Abstract

The article focuses on the importance of gathering and analyzing information related to oil and gas reservoirs, particularly parameters such as permeability (k), skin factor (S), pressure (p), and temperature (T). This data is crucial for making significant decisions in adjusting production technologies, intervening in wells, and near-well bore treatment. To obtain this information, analyzing data from tests is essential. Pressure, flow rate, and time data are collected using pressure buildup testing, where wells are produced at a constant rate and then shut-in to observe pressure increase over time. Analyzing this data allows evaluation of permeability, pressure in the drainage region, skin factor, and other parameters like static pressure. The article also discusses applying principles of hydrodynamics and flow theory to optimize well pressure survey programs without disrupting production operations. This method enables the collection of necessary information while maintaining continuous field operations and providing comprehensive technological data. The results were applied on Bali reservoir in Algeria. Information gathered from pressure survey programs not only helps fine-tune and optimize daily production procedures but also significantly contributes to updating reservoir models. This serves as a basis for future development decisions within the reservoir. The method has been successfully applied at Biba field, Algeria.