Baker Hughes has announced the availability of its MPRESS drilling–fluid system, which can improve drilling economics by enabling operators to manage circulating pressure more efficiently (Fig. 2). The system allows operators to reduce their standpipe pressure and apply more horsepower to the bottomhole assembly and drill bit, thereby increasing rates of penetration and decreasing nonproductive time. MPRESS also reduces viscosity in the drillstring while optimizing viscosity in the annulus for more efficient cuttings transport. The pressure saved in the drillstring can be used to increase flow rate, provide more power to motors and bits, and save wear and tear on surface equipment. The system features elevated ultralow-shear-rate viscosity and a shear-thinning rheological profile with a “rapid-set/easy-break” gel structure that minimizes the cuttings in the vertical section of the wellbore settling into the curve during connections and trips. Both the elevated viscosity and the rapid-set gels help keep the wellbore clean and minimize torque and drag associated with cuttings beds in the lateral section.
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