The present invention provides a use of a human antibody against a hepatitis B virus surface antigen. In newly delivered screen assemblies, any gravel packing that needs to be done can be accomplished without the presence of the inflow devices for faster circulation and improved gravel deposition. A gas-generating agent disposed above or below a partition plate reacts to the reaction gas from the detonator, and a gas passes through a filter and is ejected through gas outlets. In some embodiments, the light guide body is attached to a light source.