King Abdullah University of Science and Technology

Saudi Arabian Oil Company

Qi Liu

Juan Carlos Santamarina

Timothy Eric Moellendick

Raed A Alouhali

Thomas Finkbeiner

Mohammad Arfaj

Ahmed Amr Mohamed Hafez Abdelaziz

Lost circulation materials may include a plurality of self-aggregating particles having a degradable coating, wherein the self-aggregating particles are capable of bonding via mechanical interactions, electrical interactions, magnetic interactions, chemical interactions, or any combination thereof into a plurality of aggregated particles. The aggregated particles have a larger effective size and can seal large openings/apertures in the subsurface that cause lost circulation during a wellbore drilling operation.

Self-aggregating particles for lost circulation materials and related method

A method for investigating well integrity, the method including pumping a magnetic fluid into an annulus of the well; magnetizing with a magnet the magnetic fluid while in the annulus of the well; moving a magnetic sensing probe through a casing of the well and recording a magnetic field generated by the magnetic fluid; and processing the recorded magnetic field to determine a distribution of magnetic particles into the magnetic fluid in the annulus.

Well monitoring with magnetic tool

Growing community of inventors

Thuwal, Saudi Arabia

Qi Liu