Patent ID: 7823634

Claim:
An apparatus for protecting during fluid injection a bore of a wellhead member located at an upper end of a conduit extending into a well, comprising: a tubular adapter assembly adapted to mount on the wellhead member, the adapter assembly having a flow passage for coupling to a source of fluid to be pumped into the conduit; a sleeve having an upper end carried in the passage of the adapter assembly and a lower end protruding from the adapter assembly for insertion into the bore of the wellhead member; a seal carrier carried by and located at a lower end of the sleeve, the seal carrier having an outer diameter smaller than any portion of the bore of the wellhead member so as to be inserted into the bore of the wellhead member simultaneously with the sleeve, the seal carrier having a bore dimensioned greater than an outer diameter of an upper end of the conduit to slide over the upper end of the conduit; and a seal within the bore of the seal carrier for sealing contact with an outer diameter of the conduit.