Verfahren und Vorrichtung zur Abtrennung eines Zweigrohres
摘要
<p>A method for abandoning a branch main 1 joined to a fluid-carrying spine main 2 comprises gaining access to the bore of the branch main 1 at an access point and then permanently blocking the bore of the branch main 1 at a blockage point closer to the junction then to the access point.</p>
申请公布号
DE69126752(T2)
申请公布日期
1998.02.12
申请号
DE1991626752T
申请日期
1991.09.09
申请人
BRITISH GAS PLC, LONDON, GB
发明人
ELGAR, ANTHONY DENNIS, MITCHAM, SURREY CR4 1JL, GB;SALES, BRIAN THOMAS, DORKING, SURREY RH5 4TL, GB;PARKES, ADRIAN SYDNEY, BURGESS HILL, WEST SUSSEX RH15 9ED, GB
