Apparatus for severing tubular members
OwnerJohn J. Kennyinventor
Life of this patent
Estimating the term…
Abstract
The invention relates to an apparatus for severing tubular members and is provided with a carrier, which carries a sparging assembly and an explosive assembly downwardly into the tubular member to be severed. The outlet of the sparging assembly is below the lower end of the carrier and is at a level adjacent to the level of the explosive charge carried by the explosive assembly. The sparging assembly dislodges and agitates the debris accumulated within the tubular member and evacuates it from the level, wherein it is deployed, simultaneously allowing progression of the explosive assembly downward along the interior of the tubular member.
Claims18
An apparatus for severing tubular members, comprising:
- a cylindrical carrier;
- a sparging assembly carried by said carrier for removing a debris accumulated within said tubular member;
- and
- an explosive assembly detachably mounted on said carrier adjacent a lower portion of said carrier for explosively severing the tubular member, said explosive assembly comprising a frame carrying an explosive material, said frame having an upper part provided with means for mounting the explosive assembly on the lower portion of the carrier, and a lower part, which extends to a level adjacent a lower portion of the sparging assembly, wherein said frame comprises a top annular compression plate and a bottom annular deflection plate, a top annular deflection plate and a bottom annular deflection plate, the top compression and deflection plates being held in relative parallel relationship to each other by a plurality of equidistantly peripherally mounted spacer bars.
An apparatus for severing tubular members, comprising:
- a substantially cylindrical carrier having a central opening extending through the entire length thereof;
- a sparging assembly carried by said carrier for removing a debris accumulated within said tubular member, said sparging assembly extending, at least in part, through the central opening of the tubular member, with a lower part of the sparging assembly extending below a lower portion of the tubular member, said sparging assembly comprising a sparging conduit means for delivery of water under pressure to an interior of the tubular member for dislodging and agitating the debris accumulated in the tubular member, said sparging conduit means having a sparging nozzle at a lower end thereof, said sparging assembly further comprising a debris evacuation conduit means for removing the dislodged debris from a level of the sparging nozzle and carrying the debris to a level adjacent an upper end of the tubular member;
- an explosive assembly detachably mounted on the lower portion of said tubular member for explosively severing the tubular member, said explosive assembly comprising a frame carrying an explosive material, said frame having an upper part, provided with means for mounting the explosive assembly on the lower portion of the tubular member, and a lower part which extends to a level adjacent to the lower portion of the sparging assembly;
- and
- means for detachably securing the explosive assembly in engagement with said carrier.
Dependencies are inferred from the claim text.