초록 ▼

A method and apparatus for running long tools into an out of pressurized enclosures includes a tool stop assembled on an access pressure lock of the enclosure and which tool stop cooperates with a segmented tool string to allow sequential assembly, insertion, withdrawal and disassembly of the tool s

A method and apparatus for running long tools into an out of pressurized enclosures includes a tool stop assembled on an access pressure lock of the enclosure and which tool stop cooperates with a segmented tool string to allow sequential assembly, insertion, withdrawal and disassembly of the tool string into and out of the enclosure. The tool string is made up of a number of tool segments interconnected by coupler/spacer members of smaller diameter than the tool sections and of shorter length. The tool catcher acts upon the thinner sections of the coupler/spacer members to fixedly hold the tool string in place for subsequent assembly/disassembly without allowing any significant pressure change in said enclosure.

대표청구항 ▼

An apparatus for inserting and withdrawing an elongated tool, formed by a plurality of uniform sections of a first diameter joined by connectors of a second smaller diameter, into and out of a producing well closed by a blowout preventer, said apparatus comprising: a housing secured by one end to an

An apparatus for inserting and withdrawing an elongated tool, formed by a plurality of uniform sections of a first diameter joined by connectors of a second smaller diameter, into and out of a producing well closed by a blowout preventer, said apparatus comprising: a housing secured by one end to an upper end of said blowout preventer and defining a through bore forming an axial extension of a bore of said blowout preventer, a cavity opening inwardly into the bore of said housing, a plate mounted by a first side in said cavity movable between a first position extending from said cavity substantially blocking said bore and a second position lying within said cavity substantially freeing said bore of any obstruction; a slot extending from a second side of said plate opposite said first side radially across at least the center of said plate, said slot being wider than said second diameter and narrower than said first diameter; and a pressure tight container adapted to be secured to the other end of said housing whereby tool segments, formed by a section and a connector, are assembled on said housing, enclosed in said container and, by opening said blowout preventer and moving said plate from the first to the second position, sequentially lowered into said well with said plate returning to said first position to engage said connector thereby holding said tool, and said tool is withdrawn from said well by reversing the process.