Patent ID: 9068447
Filing Date: 2015-06-30
Classification: E21B

Abstract:
1. A method for stimulating a multi-zone wellbore, the multi-zone wellbore being completed with a string of production casing, and the method comprising: pumping a first volume of acidic fluid into the wellbore comprising a first set of perforations in a first zone of interest and another set of perforations in a second zone of interest; injecting the first volume of acidic fluid through the first set of perforations and into at least the first zone of interest along the production casing; dropping a plug into the wellbore, the plug having a defined geometry and being fabricated from a material that dissolves in the presence of the acidic fluid at or over a selected period of time; pumping a second volume of acidic fluid into the wellbore; setting the plug along the production casing at least partially above the first zone of interest to inhibit the flow of the second volume of acidic fluid into the first zone of interest; and injecting the second volume of acidic fluid through the another set of perforations and into the second zone of interest along the production casing and above the first zone of interest.