APPARATUS AND METHODS TO OPTIMIZE FLUID FLOW AND PERFORMANCE OF DOWNHOLE DRILLING EQUIPMENT

摘要

Sleeves, stabilizers and other well tools may be formed with fluid flowpaths or channels extending through one or more blades disposed on theexterior portionsof such well tools. The blades and associated fluid flow paths extendingtherethroughmay allow optimum fluid flow rates and volumes to enhance lifting of formationcuttingsand downhole debris along with cleaning exterior portions of the well tool andanassociated rotary drill bit. Location, configuration, orientation and/ordimensions associatedwith such blades and associated fluid flow paths or channels may also bemodified toprovide an enlarged pad or contact surface on exterior portions of one or moreblades whilemaintaining desired fluid flow rates and volumes over exterior portions of thewell tool.Such pads or contact surfaces may have optimum surface areas for contactingadjacentportions of a wellbore during directional drilling of the wellbore.