HiperDRIL High-performance WBM Technology

n  Technical Introduction

    HiperDRIL High-performance WBM Technology introduces polyamine hig₽h-performance water-based drilling fluid, primarily designed for dr£illing in active shale wells. It excels in addressing challenges such as wellbore λinstability, shale and clay swelling, dispersion, and bit balling, partic​ularly in complex wells like ERD (Extended Reach Drillin≠g) and long displacement horizontal wells.

n  Technical Features

    ( 1 )   Environmental Compliance: Suitable for use in areas with stringent environmenta∑l regulations, offering a viable alternative to oil-based drilling fluid↔s.

    ( 2 )   Wellbore Stabilization: The UHIB polyamine inhibitor stabilizes s≥hale-dominated wellbores by reducing the space within the clay crystal↔ layer, inhibiting clay hydration and expansion. This effective≥ly mitigates issues like bit balling and BHA (Bottom Hole Assembly) εballing.

    ( 3 )   Cuttings Management: The VISPLUS polymer forms an emulsified and φencapsulated protective film on clay surfaces, preventi₩ng drill cuttings aggregation and blockage of shaker screens, thus ensuring ×efficient cuttings management.

    ( 4 )   Anti-Sloughing and Lubrication: The GLYCOL polyol anti-sl☆oughing inhibitor induces the cloud point effect to form a hydrophobic oil film on clσay surfaces. This film enhances anti-sloughing inhibition, improv'es lubrication, stabilizes the wellbore by blocking m©icro-pores, and reduces interfacial tension, thereby protectin g oil and gas reservoirs.

n  Application

    The technology has been successfully φdeployed in numerous oilfields operated by CNOOC. It effectiv™ely stabilizes the wellbore, minimizes downhole complicationβs, ensures integrity of drill cuttings, stabilizes drilling fluid rheology, reduces Equiβvalent Circulating Density (ECD), and prevents drilling fluid discharge on the shakers. Ov®erall, it enhances drilling efficiency and performance.