Method of completing wellbores to control fracturing screenout caused by multiple near-wellbore fractures

摘要: In the preferred embodiment of present invention, completion operations are performed which include a perforation operation followed by fracturing operation. During perforations (or other means for creating flow paths) shot at low density, in order to create flowpath between wellbore and hydrocarbon bearing formation as well an unknown number relatively wide fractures few, but fracture initiation sites formation. operations, small, high-concentration proppant slugs with clean spacer stages pumped early treatment, screenout narrower fractures, these not sufficient wider fractures. Next, conventional employed and/or enlarge widen remaining without risk loss relatively-expensive carrier fluids material (such sand) now-screened-out smaller Experimentation has revealed that this technique can be (1) likely longer (2) increase overall sand-to-fluid ratios.