LOST CIRCULATION ADDITIVES CONSISTING

Brand	Owner	Address	Description
POL-E-FLAKE	WelDril Holdings	701 West Hancock Road Muskogee OK 74401	Lost circulation additives consisting of flakes made from polyester film, used in oil and gas drilling and completion operations;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Cement compositions that include improved lost circulation materials are provided. In certain exemplary embodiments, the improved lost circulation materials include inelastic particles of polyethylene, polystyrene, and/or polypropylene. Optionally, the cement compositions also may include additives such as fly ash, a surfactant, a dispersant, a fluid loss control additive, a conventional lost circulation material, an accelerator, a retarder, a salt, a mica, fiber, a formation-conditioning agent, fumed silica, bentonite, expanding additives, microspheres, weighting materials, or a defoamer.