| 摘要 |
<p>A plug assembly and method for pressure testing a shaft having a generally cylindrical member with a deformabie outer surface comprised of alternating soft and rigid ribs and a centra! void for reception of a sealing component having a seatable central bore, a tubular adapter capable of releasahle attachment to a drill pipe and refeasab!y engaged to the cylindrical member, a plurality of ports about the circumference of the member for upward flow of fluid through the member and a receptacle in the member for placement of the sealing component for fixed attachment inside the member for creating a seal for testing pressure. The sealing component may use a ball valve to regulate flow and the cylindrical member may have rigid sections implanted between soft sections during manufacture to facilitate sealing upon pressurization.</p> |
