Patent attributes
A solid lost circulation material is flowed into a wellbore formed in a subterranean formation to a loss zone. After flowing the solid lost circulation material into the wellbore, a plasticizer is flowed into the wellbore to the loss zone. The plasticizer is allowed to come in contact with the solid lost circulation material at the loss zone. The plasticizer causes the solid lost circulation material to become deformable and adhesive in response to contacting the solid lost circulation material. The solid lost circulation material contacted by the plasticizer forms a malleable plug that seals the loss zone. After malleable plug seals the loss zone, a fluid is circulated through the wellbore to further seal the plug against the loss zone to block fluid flow from the wellbore into the loss zone.
