Absorbent Polymer for Lost Circulation

Description

DIAMOND SEAL is a water-swellable but not water-soluble, 100% crystalline synthetic polymer. DIAMOND SEAL absorbs hundreds of times its own weight in water. It is intended for use primarily as a lost circulation material for horizontal directional drilling.

Applications/Functions

• Lost circulation material for horizontal directional drilling
• Prevent inadvertent returns in river crossing applications
• Stabilize borehole in cobble and gravel
• Stabilize unconsolidated formations

Advantages

• Rapid water absorption
• Effective in mitigating lost circulation
• Economical-small quantity yields large volume
• Easy to use
• Non-fermenting

Recommended Treatment

For slug treatment

• Add ½ to 1 pound (0.25 - .5 kg) DIAMOND SEAL per joint

As a pill:

• Add DIAMOND SEAL at 10 – 20 lb/100 gallons of drilling fluid
• Add DIAMOND SEAL at 12 – 24 kg/m3 of drilling fluid

Treatment for Loss of Circulation or Inadvertent Returns in HDD Operations:
(Prior to pumping, remove all in-line screens in circulating system)
Add the following to existing drilling fluid and displace:
BAROLIFT ^® - 0.25 – 0.5 lb/100 gallons (0.3 – 0.6 kg/m³)
N-SEALTM - 3 – 5 lb/100 gallons (3.6 – 6.0 kg/m³)
DIAMOND SEAL - 10 – 20 lb/100 gallons (12 – 24 kg/m³)