... out and improve both injection and production. Problems that operators have with multiple tubing strings in wells include their control and design. In this work, the injector and the producer will have two tubing strings each: one landed at the toe and the other at the heel. Control points are applied...

... for years to find a reliable way to control PCPs for pumpoff. Several methods have been used, from monitoring torque to manual fluid levels. To date, none of these have been commercially successful. A method for controlling these wells has been developed combining wedge flowmeter technology...

... the problem of suppression of stick-slip oscillations in oil well drill-strings using proportional integral derivative (PID) and lead-lag controllers in conjunction with genetic algorithms. Simulation results are presented to validate the proposed control schemes. Introduction The drilling process is affected...

... in porous media viscous displacement viscous force enhanced recovery Fluid Dynamics gravity force configuration pressure gradient chemical flooding methods Upstream Oil & Gas hydraulic fracturing gas pressure gradient controller effective permeability normal decane slab reservoir...

... of the surface model is the ability to model operatingconditions in addition to the deliverability condition. This is made possibleby modelling controllers, which cause the problem to degenerate into a numberof smaller problems, each of which must be solved separately. The three dimensional single phase...