Method and apparatus of protecting explosives

A perforating gun string for use in a wellbore, comprising:

• an explosive component;
• an adsorptive material proximal the explosive component to adsorb a corrosive fluid to protect the explosive component;
• and
• a module containing the adsorptive material, the explosive component outside the module.

A method of protecting an explosive in a high-temperature environment, comprising;

• positioning an adsorptive material effective at a temperature greater than about 140° F. proximal the explosive to adsorb a corrosive fluid to protect the explosive,
• wherein positioning the adsorptive material comprises placing the adsorptive material in a container and positioning the container in a tool containing the explosive;
• and
• removing the container from a sealed pouch prior to positioning the container.

A tool for use in a wellbore, comprising

• an element for performing a downhole operation,
• an explosive;
• and
• one or more modules containing and adsorptive material to adsorb corrosive fluid,
• wherein each of the one or more modules comprises a container in which the adsorptive material is placed;
• and
• wherein the container comprises a member selected from the group consisting of a metal screen, a metal mesh, and a porous plastic.

A tool for use in a wellbore, comprising

• an element for performing a downhole operation;
• an explosivbe;
• one or modules containing an adsorptive material to adsorb corrosive fluid,
• wherein each of the one or more modules comprises a container in which the adsorptive material is placed;
• and
• a pouch in which the container may be initially stored, the pouch formed of a material impervious to gas.

An apparatus for use in a wellbore, comprising:

• an explosive;
• a protective material positioned proximal the explosive to interact with a corrosive fluid at an elevated wellbore temperature to protect the explosive;
• and
• a module containing the protective material, the explosive being outside the module.

A tool for use in a wellbore, comprising

• an element for performing a downhole operation;
• an explosive;
• and
• one or more modules containing an adsorptive material to adsorb corrosive fluid,
• wherein the explosive is located outside the one or modules.

A tool for use in a wellbore, comprising

• an element for performing a downhole operation;
• an explosive;
• and
• one or more modules containing an adsorptive material to adsorb corrosive fluid,
• wherein each module has an element adapted to pierce a portion of the module.