Maximizing productivity from every well has always been the ultimate objective of industry experts. Connecting the wellbore with the reservoir is a key element towards meeting this challenge. In the case of perforated completions, techniques like static and dynamic underbalance are used to try and remove the crushed zone caused by the perforation process. In marginal reservoirs, poor connectivity can be the difference between a commercial discovery and a dry well.

Reactive liner perforation technology is a new technique which removes the crushed zone using a highly exothermic reaction, providing a step-change improvement in perforation geometry and performance. The reaction breaks up and expels debris to leave a clean, undamaged tunnel, even in variable or low quality rock. This process is independent of lithology and wellbore conditions. This next generation perforating technique has recently been launched in Pakistan with exceptional results.

This paper describes these successes in greater detail. When compared with offset wells with identical parameters, perforated using relatively new techniques, the superiority of the reactive technique was proven. Significant rate improvements and very low (negative in some cases) values of total skin were measured. When applied prior to hydraulic fracturing, significantly reduced initiation pressures and lower horsepower requirement added significant value through optimized fracturing treatment, reduced risk of screen-out, and reduced expenditure.

Results in-hand prove the superiority of this technology in improving well connectivity, particularly in tight gas reservoirs. The independency from rock properties and wellbore conditions are truly added advantages of the reactive liner technology. This is a technically viable and cost efficient option for ensuring operators achieves their production objectives.

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