ALPINE MUD PRODUCTS Drill Beads Decrease Friction Factor

For the first time in the Russian off-shore drilling practice, the drill beads ALPINE DRILL BEADS have been successfully employed to decrease friction factor in the course of making inclined borehole sections of Well No. 11 at the Kravtsovskoye oilfield in the Baltic Sea (LUKOIL-Kaliningradmorneft). The above-mentioned drill beads are manufactured by ALPINE MUD PRODUCTS, which is a subsidiary of M-I SWACO.

Drilling wells at the Kravtsovskoye oilfield in the Baltic Sea can be characterized by a number of difficulties conditioned primarily by the increase of bottom hole vertical deviation.

The distinctive feature of Well No. 11 is a greater extension of a wellbore, conditioned by the increase of bottom hole vertical deviation. It leads to an increase in frictional forces and drillstring torque. It also necessitates providing long-term stability of an inclined wellbore. The greater wellbore extension also causes difficulty in transporting drilling cuttings out of the wellbore, complicated casing lowering to the total depth and a number of other such problems.

ALPINE DRILL BEADS have been effectively employed at well No. 11 of the Kravtsovskoye oilfield to perform casing lowering to the total depths. ALPINE DRILL BEADS have been introduced directly into drilling mud through a hydraulic entry guide.

Parameters:

ALPINE DRILL BEADS are solid and spherical plastic balls, used as mechanical lubricants in drilling muds on water, mineral and synthetic basis. Due to their high durability (compressive resistance of 110 MPa) and inert nature, ALPINE DRILL BEADS are environmentally safe and can be applied to any type of drilling muds.

Employing ALPINE DRILL BEADS allows for an effective decrease of friction factor and torsional moment in any types of drilling fluids, to ensure transmission of load onto a drill bit in the course of inclination and lateral drilling, to decrease the probability of differential tool sticking and to facilitate performing tripping operations with drillstrings, casing and geophysical equipment.

Advantages:
• Efficiency in any type of drilling muds on water, hydrocarbon and synthetic basis.
• Inert and nonabrasive material.
• Decreased values of frictional forces and torsional moment.
• Virtual absence of impact on rheological properties of drilling mud.
• Decreased casing wear and tear in the course of drilling subsequent intervals.
• Thermal stability at up to 232 C.

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