Fracturing technology optimization and result analysis for Konys Oilfield

Characterized by layered structural sand reservoir with gas top and edge water, Konys oilfield has been developed for more than 15 years. Fracturing stimulation is difficult due to non-homogeneous pay zone, developed fault and complex gas/water/oil relationship. According to the geological and reservoir features, some factors such as fracture geometry, operation capacity, proppant and operation procedure were optimized: reasonable fracture geometry to avoid communicating gas/water layer, RCP to avoid sanding after operation, optimized proppant concentration and tip screen-out fracturing to achieve higher flow conductivity in mid-high permeability zone. Fracturing result analysis has been done to find that reservoir energy and near wellbore permeability is main affecting factor. Since 2005, good performance has been achieved and fracturing technology has played a very important role on new well completion, slowing down old well decreasing and water injection effect.