Abstract: Well completion technology is disclosed for accounting for fracture surface roughness. A frack fluid is pumped into the wellbore to form a fracture in a formation surrounding a wellbore. In one example, a method for completing a wellbore comprises determining a fracture surface roughness for a given formation rock, and for a give fracture fluid or pumping schedule or both, prior to hydraulic fracturing. A fracture fluid and/or a pumping schedule is selected based on the determined fracture surface roughness and formation characteristics. The selected fracture fluid is pumped into the wellbore, with the selected pumping schedule, to create a desired fracture network in the formation.

Abstract: Well completion technology for resisting imbibing frack fluid into an inner surface of a frack comprises pumping a frack fluid into the wellbore to form a fracture in a formation surrounding a wellbore. In one example, formation of transverse micro-fractures extending transverse to the fracture is resisted to resist absorption of the frack fluid into the formation through the inner face of the fracture, or into existing transverse micro-fractures or transverse micro-fractures formed by the pumping of the frack fluid. In another example, a sealer is added to a frack fluid to sealing or coating an inner face of the fracture with the sealer. In another example, micro-particles with a size less than 100 microns are added to the frack fluid.