XCLUDE IS A RIGLESS, SAFE & COST EFFECTIVE SOLUTION THAT PLUGS WELLS BY BLOCKING THE RESERVOIR FORMATION
Current practices require a rig to plug and abandon a well at an average cost of £5M each, leading to well abandonment being the biggest single decommissioning cost that North Sea operators currently face.
This prohibitive cost has prompted the search for new “rigless” abandonment techniques to lower costs and as a result working with Heriot Watt University, OGIC and OGTC, Aubin has devised a new reservoir barrier technology called Xclude.
Watch the video above to see Xclude forming solid scale from its water-thin components.
It is safe, environmentally friendly and can be applied with existing equipment and without a rig. Unlike existing techniques where a barrier is made in the well-bore, Aubin’s technique involves creating the barrier in the reservoir.
The company’s Xclude technology takes scale formation - a problem the North Sea has faced for over forty years - and uses it to form a permanent mineral barrier in the rock, isolating any further hydrocarbon from entering the well. Xcludes specially formulated fluids are easily mixed and deployed using standard pumping equipment.
The scale inhibited solution can be pumped to various depths and is time-controlled to ensure that the scale forms where it is needed. By using this new approach operators will significantly reduce the well management risk and overall P&A cost.
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