Saudi Arabian Oil Company

King Abdullah University of Science and Technology

Carlos Daniel Rodriguez Hernandez

Timothy Eric Moellendick

Raed A Alouhali

Juan Carlos Santamarina

Thomas Finkbeiner

Mohammad Arfaj

Ahmed Amr Mohamed Hafez Abdelaziz

Lost circulation materials may be particles having a core-shell structure. Said particles may include: a core comprising an expandable material; and a shell around the core, the shell comprising an outer permeable membrane, an inner permeable membrane, and a hardenable material between the outer and inner permeable membranes; and wherein the core-shell structure is folded. The particles may be initially folded where, upon exposure to a stimulus, the core expands in volume (which unfolds the particles) and the shell increases in strength. The expanded particles can then clog large openings/apertures in the formation.

Foldable particles for lost circulation materials and related method

Growing community of inventors

Thuwal, Saudi Arabia

Carlos Daniel Rodriguez Hernandez