Objective
This project presents an innovating technology of artificial lift by downhole linear pumping. Its objectives are to achieve an highly increased reliability and to change out the downhole equipment by wire-line. Operators are looking for lower costs in artificial lift. Conversely, the operating conditions are becoming more difficult. For example, depletion increases on a number of mature fields. Furthermore, the development under difficult environment requires higher production rate per well to be profitable. In addition, longer distances require higher welhead flowing pressures, where gas-lift becomes unsuitable. Last but not least, offshore sites, subsea and deep sea contexts induce more and more costly work-covers (some times several millions) to maintenance the downhole equipment after each failure. Thus, a reliable, powerful and flexible pumping system is more compulsory than even to succeed in cost reduction.L%
The main innovation is thanks to the housing of the electrical stator.This housing allows pumped fluids to flow through it and to efficiently cool the motor of the downhole pump even in spite of high power units needed (a 500 kilo Watt power becomes common). Thus, the stator can be set above the packer, which isolates it from agressive environment. An alternative linear motion is transmitted to moving parts by an electromagnetic field over a long distance. The moving parts are limited to an iron core and two valves. They can be easily changed-out- by wire-line, or -possible in the future- by TFL (through flowline) technologies.
Programme(s)
Topic(s)
Data not availableCall for proposal
Data not availableFunding Scheme
DEM - Demonstration contractsCoordinator
92500 Rueil Malmaison
France