английский => русский Техника Нефтепромысловые науки и технологии Скважинные фильтры, патент

Контекст:
"Although the well screen depicted in FIG. 2 is of the type known to those skilled in the art as a wire-wrapped
well screen, any other types or combinations of well screens (such as sintered, expanded, pre-packed, wire
mesh, etc.) may be used in other examples. Additional components (such as shrouds, shunt tubes, lines, instrumentation, sensors, inflow control devices, etc.) may also be used, if desired."

Хотелось бы понять, что это за тип скважинного фильтра такой "pre-packed screen"?