公开(公告)号：US10201815B2

公开(公告)日：2019-02-12

申请号：US15788673

申请日：2017-10-19

申请人： Mark S. Sankey ,  James F. Stewart ,  Andrew J. Pounds ,  William Scott Stalnaker ,  John R. Walker ,  Dennis Aubrey Walker ,  James R. Collins

发明人： Mark S. Sankey ,  James F. Stewart ,  Andrew J. Pounds ,  William Scott Stalnaker ,  John R. Walker ,  Dennis Aubrey Walker ,  James R. Collins

IPC分类号： B02C19/18 ,  F16L55/48 ,  F16L55/46 ,  F16L55/40

摘要： The present disclosure provides for a novel pig design and method of retrieval based on thermal ablation. The pig comprises an external layer and an inner core, where the inner core further comprises at least one incendiary charge comprising at least one exothermic material. When ignited via an ignition source, the incendiary charge releases the exothermic material into one or more thermal dispersion channels. The exothermic material melts the interior of these thermal dispersion channels thereby distributing the exothermic material throughout the pig device causing its destruction via thermal ablation. The destroyed pig can then be easily retrieved from its location in a pipe, as detected via radio signals, without the need for costly excavation of large sections of the pipe.

公开(公告)号：US20180056304A1

公开(公告)日：2018-03-01

申请号：US15788633

申请日：2017-10-19

申请人： Mark S. Sankey ,  James F. Stewart ,  Andrew J. Pounds ,  William Scott Stalnaker ,  John R. Walker ,  Dennis Aubrey Walker ,  James R. Collins

发明人： Mark S. Sankey ,  James F. Stewart ,  Andrew J. Pounds ,  William Scott Stalnaker ,  John R. Walker ,  Dennis Aubrey Walker ,  James R. Collins

IPC分类号： B02C19/18 ,  F16L55/48 ,  F16L55/46 ,  F16L55/40

CPC分类号： B02C19/186 ,  F16L55/40 ,  F16L55/46 ,  F16L55/48

摘要： The present disclosure provides for a novel pig design and method of retrieval based on thermal ablation. The pig comprises an external layer and an inner core, where the inner core further comprises at least one incendiary charge comprising at least one exothermic material. When ignited via an ignition source, the incendiary charge releases the exothermic material into one or more thermal dispersion channels. The exothermic material melts the interior of these thermal dispersion channels thereby distributing the exothermic material throughout the pig device causing its destruction via thermal ablation. The destroyed pig can then be easily retrieved from its location in a pipe, as detected via radio signals, without the need for costly excavation of large sections of the pipe.