Downhole tool including a pressure intensifier

A method, comprising:

• positioning a downhole tool within a wellbore extending through one or more subterranean formations, the downhole tool including:
• a mandrel;
• a deployable element positioned about the mandrel, the deployable element configured to move between a retracted state, a partially deployed state, and a fully deployed state;
• and
• a pressure intensifier positioned about the mandrel, the pressure intensifier including:
• a first piston having a first piston surface area (A1);
• a second piston having a second piston surface area (A2), wherein the second piston surface area (A2) is greater than the first piston surface area (A1);
• and
• a fluid chamber defined between the first piston surface area (A1) of the first piston and the second piston surface area (A2) of the second piston, wherein the first piston surface area (A1) of the first piston is configured to extend at least partially within the fluid chamber as the mandrel moves;
• applying a setting force (F1) to the mandrel, the setting force (F1) moving the deployable element from the retracted state to the partially deployed state;
• and
• continuing to apply the setting force (F1) to the mandrel, the continued application of the setting force (F1) causing the first piston having the first piston surface area (A1) to press fluid located within the fluid chamber against the second piston surface area (A2) of the second piston to create an amplified force (FA) sufficient to continue to move the deployable element from the partially deployed state to the fully deployed state.

A well system, comprising:

• a wellbore extending through one or more subterranean formations;
• and
• a downhole tool positioned within the wellbore, the downhole tool including:
• a mandrel;
• a deployable element positioned about the mandrel, the deployable element configured to move between a retracted state, a partially deployed state, and a fully deployed state, wherein the mandrel is configured to receive a setting force (F1) sufficient to move the deployable element from the retracted state to the partially deployed state;
• and
• a pressure intensifier positioned about the mandrel, the pressure intensifier configured to receive the setting force (F1) and amplify it to an amplified force (FA) sufficient to continue to move the deployable element from the partially deployed state to the fully deployed state, the pressure intensifier including:
• a first piston having a first piston surface area (A1);
• a second piston having a second piston surface area (A2),
• wherein the second piston surface area (A2) is greater than the first piston surface area (A1);
• and
• a fluid chamber defined between the first piston surface area (A1) of the first piston and
• the second piston surface area (A2) of the second piston, wherein the first piston surface area (A1) of the first piston is configured to extend at least partially within the fluid chamber as the mandrel is receiving the setting force (F1) thereby pressing fluid located within the fluid chamber against the second piston surface area (A2) of the second piston to create the amplified force (FA) sufficient to continue to move the deployable element from the partially deployed state to the fully deployed state.