... assumed that fluid inflow rate is proportional to the difference between reservoir pressure and wellbore pressure. This assumption leads to a straight line relationship that can be derived from Darcy s law for steady state flow of an incompressible, single phase fluid and is called the Productivity Index...

... strategy. To determine the economical feasibility of drilling a well, petroleum engineers need reliable methods to estimate its expected productivity. Well productivity is often evaluated using the productivity index, which is defined as the production rate per unit pressure drawdown. We often relate...

... the parameters such as permeability, skin factor, well bore storage, average reservoir pressure and so on. A correlation between productivity index and the diffusivity coefficient for the Asmari formation has been obtained. The proposed correlation is very useful for determination of reservoir permeability...

... risk management application quantification machine learning complex reservoir artificial intelligence productivity index risk and uncertainty assessment upstream oil & gas response surface methodology reservoir simulation bitumen experimental design modeling & simulation...

... productivity index (PI) at initial reservoir pressure of 4750 psia for a single-phase gas flow was found to drop rapidly approximately 10% to 35% due to single phase transient effects. As the reservoir pressure drops below the dew point pressure, this PI drop slows down but continually losses for 20% till...

... performance curves. Vogel (2) presented an empirical method using a reservoir simulator for solution-gas drive reservoirs. Wiggins, Russel and Jennings (3) and Brown (4) present analytical inflow curves for multiphase flow conditions. Brown and Beggs (5) distinguished oil zone productivity index and water...

.... enhanced recovery artificial lift system flow rate gas injection rate productivity index production monitoring installation water cut lift design gas lift software oil flow rate gas injection top completion dw well upstream oil & gas production control bottom completion fluid flow...

... better forecasts (13,14) . vertical well mpa gas lift upstream oil & gas maximum oil rate artificial lift system inflow performance drillstem/well testing drillstem testing formula pom complex reservoir fractured reservoir productivity index pvt measurement oil field reservoir...

... for the quantitative factors necessary for the determination of optimum well length for horizontal drilling. This paper presents the methodology developed to obtain the optimum horizontal well length based on the total economics as well as productivity index (PI) change associated with frictional loss effects...

... engineering discipline that such criteria are used to determine drainage area ratio, production rate ratio, and productivity index ratio of these two different type wells utilizing analytical model. The values of drainage area ratio, production rate ratio, and productivity index ratio obtained from this new...