and cutting to length of the basic inner tube 12 1 a metal rod is placed within the basic composite tube and end fittings 14 are placed over the metal rod flange 29 is inserted within each end of the basic composite tube 12 2 end plates are attached to the metal rod to lock the basic composite tube 12 and end fittings 14 together for placement on a filament winder 3 the outer surface of the composite tube 12 and the axial tension 22 torsional transfer 24 and bending stress transfer surfaces 26 of the end fittings 14 are filament wound with resin impregnated fibre with a combination of helical and hoop wound fibre to an outside diameter corresponding to that of the outside diameter of the end fittings 14 following completion of the filament winding an abrasion resistant coating may be added after curing of the assembly the abrasion resistant coating is preferably a wear resistant trowelable coating such as armorstone ceratrowel ceramic powder filled epoxy ceratrowel from durawear corporation a stabilizer wear pad 30 may be used either on the end fittings 14 or on the composite body 16 in order to minimize the wear to the composite material the stabilizer wear pad 30 may also include additional sensing elements such as rutile focussing lenses 32 as shown in fig7 for use with micro pulse imaging radar equipment stabilizers 30 may be integral or removable from the assembly 10 fig7 also shows a logging tool 40 within the bore of the assembly.