Back when Matt Simmons debated Mahmoud Baqi and Nansen Saleri of Aramco at CSIS in 2004, one of the solutions that Aramco put forward was the increasing use that they were making of horizontal wells, particularly in new fields, and also of the introduction of the Maximum Reservoir Contact (MRC) wells where the initial horizontal well is supplemented by secondary laterals that are offshoots from the main initial drive. Further, with the introduction of down-hole valves that allowed segments of the well to be closed down, while segments on either side continued to produce, as a way of overcoming localized water breakthrough, smart wells were developed that would allow production to continue from wells that historically would have closed. In 2004, however, this was a technique that was being widely used in new fields, but not yet used exclusively in older ones. The difference is fairly significant, since a horizontal well can produce thousands of barrels a day, over the hundreds that can come from a vertical well in the same place. (The reason is that the length of the well in the productive rock that holds the oil controls how much oil can flow into a well at a given time, and the horizontal wells can run kilometers through oil-bearing rock, while vertical wells rarely run even a hundred meters.)
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This should work wonders with Tui,as we have a very shallow structure. Like the bit about shutting down a water section.As Tui is generally shallow a section that is less deep would have a big enfluence on the water cut long before the overall well is depleted.