Email: sales@grandoiltech.com Tel: +86-28-83973858

Lost Circulation Material

LCM R&D

GRANDOIL, one of the main LCMs suppliers for CNPC, Sinopec and CNOOC in China, has been researching, developing and manufacturing LCMs for more than 10 years. Through more than thousands of lab tests and field applications in many wells, LCM integridients have been optimized based on original materials, particle shapes and size distribution for better performance.

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Mechanism of Neotor® LCM

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 Improving the pressure resistance 

of wellbore through particles shielding

Improving formation bearing 

pressure by wedging

Flipping and bridging 

with flake-shaped materials

Mechanism of Mudplug® LCM

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Granular polymer dehydratedEnhanced adhesion to wall of rock matrixForming Rubber-like gel structure

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Polymer chains agglomerates into clusters. Forming high strength slugs
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