Abstract
This paper will highlight the methodology used to successfully re-stimulate a well that had been unsuccessfully stimulated from previous treatments. A field example will present a well, which was previously treated on two occasions and show the subsequent implementation of a successful treatment that displaced both Ottawa and resin coated sand from the original fracture, enabling the third treatment to be successfully pumped. The initial evaluation methods that were utilized, which included pressure buildup (PBU), reciprocal productive index (RPI), and treatment pressure analyses, will show the damage that can occur when overly aggressive stimulation treatments are applied and present a methodology for evaluating a damaged well. A treatment was specifically designed to remove the proppant pack damage and create an effective stimulation for the character of the reservoir rock. The pressure response from the third treatment will demonstrate removal of the original and the creation of an effective stimulation. Post-treatment production data and analysis is also presented.
