Lost Circulation Materials

Control downhole losses of drilling fluids

M-I SWACO offers the industry’s most extensive line of lost circulation materials (LCMs) engineered specifically to seal costly loss zones. Our comprehensive suite of LCMs includes an engineered approach to the design and application of plugs and bridging agents. Our lost circulation technologies include proprietary engineering software to determine the optimal particle size distribution of bridging materials.

We provide basic LCMs ranging from flakes and fibers to specially engineered families of crosslinking polymers designed to plug large fractures or vugular zones. Additionally, our thermally activated gelling agents generate viscosity and develop a gel structure once bottomhole temperature exceeds 140 degF [60 degC].

Products

FybeCarb

High-efficiency, acid-soluble loss-prevention and remedial material

Seal fracture apertures of up to 1,000 um. View
M-I SEAL

Lost-circulation materials

Effective when drilling highly porous fractured or vugular matrix formations. View
M-I-X II

Ground cellulose plugging agent

Bridge and seal permeable formations in water-, oil-, or synthetic-based mud systems. View
NUT PLUG

Lost circulation materials

Lost circulation for all types and densities of fluid systems. View
VINSEAL

Filtration control and electrical stability lost circulation material

Bridges and seals permeable formations with minimal effect on electrical stability. View

Pills

FORM-A-BLOK

High-performance, high-strength lost circulation pill

Cure losses, from partial to severe, at temperatures up to 350 degF [177 degC]. View
FORM-A-BLOK AS

Acid-soluble lost circulation pill

Wellbore strengthening across a host of lost circulation scenarios. View
FORM-A-SQUEEZE

High-solids slurry

Prevent lost circulation in fractures, vugular formations, matrix, and underground blowout events. View