Extended chemical treatment in subterranean wells

Abstract

A method of chemically treating a subterranean well can include connecting chemical treatment tools to each other, each of the chemical treatment tools including a respective chemical treatment, and deploying the treatment tools in the well, thereby contacting one chemical treatment with fluids in the well, while the other chemical treatment(s) remain isolated from the fluids in the well. A chemical treatment system can include multiple chemical treatment tools connected together, with a fluid passage extending between interiors of the chemical treatment tools, chemical treatments disposed in the respective interiors of the chemical treatment tools, and a fluid barrier blocking fluid flow through the fluid passage. A method of well tool actuation can include connecting well tools to each other with a fluid barrier, deploying the well tools into the well, and opening the fluid barrier, thereby actuating one of the well tools.

Dependencies are inferred from the claim text.