16616 – A Case Study: Innovative Open Hole Well Completion Provides Superior Results in Tight Gas Formation in Jilin District, China


Drilling of horizontal wells on land has increased steadily over the last few years in China. In the Changling gas field, a low porosity and low permeability formation, wells have typically been drilled vertically and completed with cemented casing. Production results from these wells were not promising and most wells have experienced a rapid decline once coming on production. This paper discusses the successful completion of a pilot experimental open hole horizontal well using an innovative multistage fracturing system and new design workflow for optimization of fracturing treatment execution. This well was a milestone for the operator in China, being the most number of stages completed for a horizontal well in a tight gas formation and the most proppant and fracture fluid volume successfully pumped by first time application of a precise continuous mixer.