Downhole tool apparatus with non-metallic components and methods of drilling thereof

A well bore process comprising the steps of:

• positioning and setting a packing device into locked, sealing engagement with a well bore, a portion of said device being made of engineering grade plastic;
• contacting said device with well fluids;
• and
• drilling out said device using a polycrystalline diamond compact bit.

A downhole apparatus for use in a well bore, said apparatus comprising:

• a center mandrel;
• and
• slip means disposed on said mandrel for grippingly engaging said well bore when in a set position, said slip means comprising:
• a slip wedge made of a non-metallic material;
• and
• slips made of non-metallic material.

A packing apparatus for use in a well bore, said apparatus comprising:

• a mandrel made of a non-metallic material;
• an upper slip support disposed on said mandrel and made of a non-metallic material;
• a plurality of upper slips disposed around said mandrel and substantially made of a non-metallic material;
• packing means disposed on said mandrel below said upper slips for sealingly engaging said well bore when in a set position;
• a plurality of lower slips disposed around said mandrel below said packing means and substantially made of a non-metallic material;
• and
• a lower slip support attached to said mandrel and made of a non-metallic material.