entrailed particles entering the well bore 14 through the perforations 20 the erosion resistant material forming the blast joint of the present disclosure may be made of any suitable material exhibiting erosion resistant properties in the preferred embodiment however described in greater detail hereinafter the erosion resistant material is tungsten carbide formed in rings which are stacked end to end and carried on the tubular members forming the blast joint 10 between end located retention clamps ceramic is also a suitable erosion resistant material which may be used to form the blast joint of the present disclosure referring now to fig2 a through 2c the blast joint 10 of the present disclosure will be described from top to bottom the blast joint of the present disclosure shown in fig2 a through 2c comprises several tubular members joined end to end in a manner to be described for example the blast joint 10 of the present disclosure may comprise one or more joints of production tubing joined together and enclosed by an erosion resistant protective assembly of erosion resistant rings 24 the blast joint 10 is incorporated in the production tubing string 11 disposed within the well bore 14 as shown in fig1 the upper portion of the blast joint 10 comprises a plurality of rings 24 assembled on a tubing member 12 in end face to face contact and are held in compression between end located.