THERMOSETTING COMPOSITION FOR USE AS LOST CIRCULATION MATERIAL

• Main Authors: SONNENSCHEIN, MARK F, VIRGILI, JUSTIN M, WENDT, BENJAMIN L, POINDEXTER, MICHAEL K, SCHLEMMER, ROBERT P
• Format: Patent
• Language: English; French
• Published: 24.03.2016
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention relates to compositions and methods for reducing or preventing the loss of drilling fluids and other well servicing fluids into a subterranean formation during drilling or construction of boreholes in said formation. Specifically, this invention comprises a curable thermosetting composition comprising a polyfunctional (meth)acrylate, a polyfunctional (meth)acrylamide, or mixture thereof, one or more epoxy resin, and one or more (cyclo)aliphatic polyamine. La présente invention concerne des compositions et des procédés pour réduire ou prévenir la perte de fluides de forage et d'autres fluides de service de puits dans une formation souterraine pendant le forage ou la construction de forages dans ladite formation. Spécifiquement, cette invention comprend une composition thermodurcissable durcissable comprenant un (méth)acrylate polyfonctionnel, un (méth)acrylamide polyfonctionnel, ou un mélange de ceux-ci, une ou plusieurs résine époxy, et une ou plusieurs polyamines (cyclo)aliphatiques.