Lost Circulation

Lost circulation continues to be a very significant cost in many regions of the world. Many millions of dollars and much rig-time are lost fighting lost circulation and the resulting consequences. The highest costs are to be found when lost circulation occurs in reservoir sections and inappropriate, formation damaging, lost circulation materials are committed to the wellbore causing production impairment. Care must be taken to ensure that any and all LCMs used in reservoir sections do not cause irredeemable damage to producing zones.


Product Information 

OS FIBRESOLVE is a premium grade proprietary blend of acid-soluble extruded fibres formulated for use as an effective plugging and bridging agent for fractures and permeable formations in water and oil based mud systems. OS FIBRESOLVE is non-corrosive, non-fermenting and environmentally safe.


Typical Physical Properties 

Appearance   -   Gray to Tan Fibre                 

S.G.   -   2.6 gm/cm3

pH (1% solution)   -   6.9                                              

Particle Size   -   Fibre length is 0.1 – 4.0 mm

Acid Solubility   -   >97% (15% hydrochloric acid)       



OS FIBRESOLVE is easily wetted so that additions and pills can be made quickly. OS FIBRESOLVE can be used in both water based and oil based muds. OS FIBRESOLVE has little effect on fluid viscosity. OS FIBRESOLVE can be used for seepage control when downhole motors are in the string.



OS FIBRESOLVE recommended treatments are 5 – 15 ppb (15 – 45 kg/m3) for system seepage and 30 – 35 ppb (85 – 100 kg/m3) for pills.



OS FIBRESOLVE is packaged in 25 lb sacks.



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