Shale-optimized steel-body PDC drill bit
Efficiently drill curve and long lateral sections in shale plays with application-specific PDC bits.
Employing a special blend of surface-active agents to keep the bit free of solids, DRILZONE additive helps remove any buildup of drill solids below the bit, allowing the cutters to make continuous contact with new formation. DRILZONE additive not only reduces bit and BHA balling but also lowers torque and drag.
|Typical Physical Properties|
|Physical appearance||Yellow to brown liquid|
|Odor||Very mild hydrocarbon|
|Specific gravity||0.78 – 0.85|
|Solubility in water||Insoluble|
|Flash point||>201 degF [>94 degC] (Setaflash closed cup)|
DRILZONE additive is designed to enhance the ROP performance of water-base mud systems. It is especially applicable when drilling medium-to-hard shales in both onshore and offshore operations.
For ROP enhancement, 1% to 2% by volume of the DRILZONE additive should be added directly to the mud system at or near the pump suction over one circulation period. Ideally, the initial treatment should be made prior to drilling out of the casing shoe or after a trip before entering the hole while the bit and BHA are clean. After the initial treatment, the product should be continually added or injected into the mud stream at the pump suction while the bit is drilling. The injection rate will vary according to hole size, pump rate, dilution rates, and ROP.
Typically, addition rates may range from 15–30 galUS/h [57–114 L/h] of drilling. An injection pump attached to the low-pressure side of the mud pump helps control addition rates precisely. DRILZONE additive concentrations of up to 5% to 7% by volume will not affect drilling fluid properties or environmental toxicity.
Bioassay information is available upon request. Handle as an industrial chemical, wearing protective equipment and observing the precautions as described in the safety data sheet.
DRILZONE additive is packaged in 55-galUS [208-L] drums and is available in bulk.
El sistema de fluido se desempeñó excepcionalmente bien junto con el Manejo de Desechos de Perforación (DWM), requiriendo un tratamiento mínimo para mantener las especificaciones.
Imrove ROP in water-based mud systems, especially when using a PDC bit.