- Is a unique and effective calcium resistant filtrate control
additive for drilling, completion and workover fluids
DESCRIPTION
FL-7 Plus is a specially processed,
stabilized non-ionic starch derivative that controls high
pressure-high temperature filtrate loss at temperatures to 275° F
with the addition of pH Buffer, and enhances the
low shear rate viscosity of a fluid containing xanthan gum
biopolymer. This unique polymer combination is synergistic and
yields improved static suspension as well as highly pseudoplastic
behavior under dynamic conditions. FL-7
Plus is environmentally safe, presenting no toxicity or
ecological problems. FL-7 Plus is packaged
in 25 kg sacks.
BASE FLUIDS
FL-7 Plus is suitable for all water
base drilling fluids, workover and completions fluids including,
sea water, potassium chloride, magnesium chloride, sodium chloride,
calcium chloride, sodium bromide, calcium bromide, and zinc
bromide. FL-7 Plus resists calcium
contamination over a wide pH range.
APPLICATIONS
FL-7 Plus, when used in combination
with properly sized bridging/weighting particles, provides
filtration control and helps minimize damage to the productive
formation. Fluid compositions mixed with FL-7
Plus may be utilized for the following applications:
- Drilling into pay zones
- Lost circulation pills
- Underreaming
- Pre/post gravel pack fluid loss pills
MIXING INSTRUCTIONS
FL-7 Plus is easily dispersed into
fluids through conventional mud mixing equipment. Concentrations
range from 4-7 lb/bbl.
NON-DAMAGING
FL-7 Plus is soluble in acids and/or
oxidizers and cleans up readily following drilling, workover, or
completion operations.