Equipment/Software/Literature

June 17, 2002
The Gladiator premium drillbit is designed for large diameter surface holes, eliminating the need for multiple pass bit runs with hole openers.

36 in. bit eliminates hole opener runs

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The Gladiator premium drillbit is designed for large diameter surface holes, eliminating the need for multiple pass bit runs with hole openers.

The 36 in. bit has a premium, sealed-roller, motor bearing. It incorporates interchangeable nozzles, which are fully extended to maximize BHHP, which is important when drilling in soft, sticky, and hydratable formations that are typically met offshore.

These nozzle bosses were also specifically designed to incorporate a complete armored surface, which is fully protected with premium, tungsten carbide inserts and functions as full gauge stabilizers. This feature is combined with full gauge stabilization of the arms with pressed, tungsten carbide inserts.

Added to this hydraulics package are three fixed, center nozzle ports, which help to clean the cones while drilling. These same center nozzle ports help reduce the chance of bit balling and cone skidding.

The cutting structure on the bit begins with an aggressive tooth configuration, with proprietary, full tooth hardfacing and incorporates this firm's Reaming Gage package.

This feature provides the extra gauge protection needed for drilling through harder formation streaks and helps prevent gauge tooth rounding, which has been a common wear condition noted in drilling with 36 in. three cone bits. This feature also helps ensure a full gauge hole and the overall tooth bit longevity that is needed to match the ultralong life expectancy of the premium, sealed bearing package incorporated in this new product.

The shirttail is also fully protected with tungsten carbide inserts as well as a full hardfacing detail to help ensure longer bit life. The bit also features full insert protection on each arm to assist in providing the six-point stabilization and helps to maintain full gauge protection.

The grease reservoir system is equipped with a fitting that enables the bearing to be regreased between bit runs. This helps maximize bit life and ensure overall bit longevity. High temperature, chemically resistant polymer products are used in the seal and reservoir components to help ensure extended bearing life.

The sub section above the bit is of standard length and OD for a suitable fishing neck. This sub also makes the use of tongs suitable for making up the bit and eliminates the need for a bit breaker.

Source: RBI-Gearhart, 7601 Will Rogers Blvd., Fort Worth, TX 76140.

New membrane filter handles heat up to 120° C.

A new high temperature membrane filtration system is capable of up to 120° C. with special materials of construction.

The vibratory shear enhanced process (VSEP) uses oscillating vibration, which controls the effects of diffusion polarization that limits permeation of conventional crossflow membrane systems.

The company says studies have shown that VSEP is capable of five to15 times the permeate flux per area when compared with conventional static crossflow membrane systems. The use of vibration to control membrane blinding by suspended solids has increased the number of possible uses of membrane filtration.

Liquid-solid separations previously un attainable using membrane technology are now made possible by VSEP, the firm says.

The company says VSEP already has an advantage when it comes to gallons produced per square foot per day due to the benefits of vibratory shear.

Source: New Logic Research, 1295 67th St., Emeryville, CA 94608.

Radar level gauge approved for hazardous locations

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The BM 702 radar level gauge has received Factory Mutual and Canadian Standard Association approval for use in hazardous (classified) locations. The BM 702 is suited for Division 1 (intrinsically safe) and Division 2 hazardous areas as follows:

•Class I, Division 1, Groups A, B, C, and D.

•Class I, Division 2, Groups A, B, C, and D.

The new unit uses frequency modulated continuous wave (FMCW) radar technology, which continuously measures a mixed differential frequency. Because the FMCW sweep is linear, the low frequency of the mixed signals (200-5,000 hz) re mains constant during measurement. These frequencies allow accurate continuous signal processing and linearization. Thus, FMCW radar is able to see more while suppressing spurious signal reflections

The 702 has a measuring range of 66 ft with an accuracy of ±0.2% of reading. It promises accurately to measure fluids with low dielectric constants, such as or ganics, solvents, and natural compressed gas.

Source: Krohne Inc., Technical Application Support Center, 7 Dearborn Rd., Peabody, MA 01960.