Advanced Artificial Lift Methods Prepared by Dr. Nguyen Advanced Artificial Lift Methods – PE 571 Introduction
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Pressure Drop in a Production System
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Single Phase Liquid IPR and OPR
Advanced Artificial Lift Methods Prepared by Dr. Nguyen The flowrate value at which a specific well flows for a set of operational conditions using only the energy stored in the compressed reservoir fluids is called “natural equilibrium flowrate” Review Single Phase Liquid IPR and OPR
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Single Phase Liquid IPR and OPR
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Single Phase Liquid IPR and OPR
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Single Phase Liquid IPR and OPR
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Single Phase Liquid IPR and OPR
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Darcy’s Law - IPR
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Darcy’s Law - IPR
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review IPR – Vogel and Fetkovich
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review IPR – Vogel and Fetkovich
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Future IPR
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review OPR
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review OPR
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review OPR
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review IPR vs. OPR
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Stable equilibrium: small disturbance around the equilibrium point, the system will move back to the equilibrium condition. Unstable equilibrium: If the disturbance is large enough, the system will move towards another equilibrium point or loose the equilibrium permanently Review Stability
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Fluctuations on the P wh, q system < q steady state Review Stability
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability Several techniques might be used when the system reaches to the unstable point such as: If the well has an artificial lift installed it can be put into production to help the well overcome the unstable point. After that if the artificial lift is not required we can leave the well under natural flow. If the well does not have an artificial lift installed, we can do several things: Agitation, swab, gas injection, nitrogen injection …
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability – Tubing Heading High reservoir pressure Small PI Big tubing string
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability – Tubing Heading
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability – Tubing Heading If the fluctuations are small then the well will produce a steady state flowrate. If the fluctuations are large, the production in this well will cycle with time. This is called the tubing heading. Tubing heading is characterized by pulsating well head pressure (EX: caused by slug flow) and constant casing pressure. It occurs mostly in wells fitted with a packer during the final stage of life. During this period, liquid is lifted through a portion of the tubing and then falls back resulting a cycle flow. Under these conditions, the production test data from this well are very difficult to match the IPR and OPR simulations.
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability – Tubing Heading Very high PI Big tubing string
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability
Advanced Artificial Lift Methods Prepared by Dr. Nguyen Review Stability – Casing Heading