公开(公告)号：US11702912B2

公开(公告)日：2023-07-18

申请号：US17229093

申请日：2021-04-13

申请人： QINETIQ LIMITED

发明人： Michael John Hinton ,  Philip Duncan Church ,  Richard Gordon Townsley ,  Peter John Gould

IPC分类号： E21B43/117 ,  F42B1/036 ,  F42B1/028

CPC分类号： E21B43/117 ,  F42B1/028 ,  F42B1/036

摘要： Some embodiments are directed to a shaped charge liner including an apex end and a base end and defining a main liner axis that passes through the apex and base ends, the liner being rotationally symmetric about the main liner axis wherein the liner has discrete rotational symmetry about the main liner axis.

公开(公告)号：US20200300586A1

公开(公告)日：2020-09-24

申请号：US16855713

申请日：2020-04-22

申请人： QinetiQ Limited

发明人： Philip Duncan Church ,  Robert Peter Claridge ,  Peter John Gould ,  Richard Gordon Townsley

IPC分类号： F42B1/032 ,  E21B43/117

摘要： An oil and gas well shaped charge perforator capable of providing an exothermic reaction after detonation is provided, comprising a housing (2), a high explosive (3), and a reactive liner (6) where the high explosive is positioned between the reactive liner and the housing. The reactive liner (6) is produced from a reactive composition which is capable of sustaining an exothermic reaction during the formation of the cutting jet. The composition is a pressed i.e. compacted particulate composition comprising at least two metals, wherein one of the metals is present as spherical particulate, and the other metal is present as a non-spherical particulate. There may also be at least one further metal, which is not capable of an exothermic reaction with the reactive composition, present in an amount greater than 10% w/w of the liner. To aid consolidation a binder may also be added.

公开(公告)号：US10533401B2

公开(公告)日：2020-01-14

申请号：US14651829

申请日：2013-12-13

申请人： QINETIQ LIMITED

发明人： Michael John Hinton ,  Philip Duncan Church ,  Richard Gordon Townsley ,  Peter John Gould

IPC分类号： E21B43/117 ,  F42B1/036 ,  F42B1/028

摘要： Some embodiments are directed to a shaped charge liner including an apex end and a base end and defining a main liner axis that passes through the apex and base ends, the liner being rotationally symmetric about the main liner axis wherein the liner has discrete rotational symmetry about the main liner axis.

公开(公告)号：US11112221B2

公开(公告)日：2021-09-07

申请号：US16855713

申请日：2020-04-22

申请人： QinetiQ Limited

发明人： Philip Duncan Church ,  Robert Peter Claridge ,  Peter John Gould ,  Richard Gordon Townsley

IPC分类号： F42B1/032 ,  E21B43/117

摘要： An oil and gas well shaped charge perforator capable of providing an exothermic reaction after detonation is provided, comprising a housing (2), a high explosive (3), and a reactive liner (6) where the high explosive is positioned between the reactive liner and the housing. The reactive liner (6) is produced from a reactive composition which is capable of sustaining an exothermic reaction during the formation of the cutting jet. The composition is a pressed i.e. compacted particulate composition comprising at least two metals, wherein one of the metals is present as spherical particulate, and the other metal is present as a non-spherical particulate. There may also be at least one further metal, which is not capable of an exothermic reaction with the reactive composition, present in an amount greater than 10% w/w of the liner. To aid consolidation a binder may also be added.

公开(公告)号：US11002118B2

公开(公告)日：2021-05-11

申请号：US16704524

申请日：2019-12-05

申请人： QINETIQ LIMITED

发明人： Michael John Hinton ,  Philip Duncan Church ,  Richard Gordon Townsley ,  Peter John Gould

IPC分类号： E21B43/117 ,  F42B1/036 ,  F42B1/028

摘要： Some embodiments are directed to a shaped charge liner including an apex end and a base end and defining a main liner axis that passes through the apex and base ends, the liner being rotationally symmetric about the main liner axis wherein the liner has discrete rotational symmetry about the main liner axis.

公开(公告)号：US20220113120A1

公开(公告)日：2022-04-14

申请号：US17390581

申请日：2021-07-30

申请人： QinetiQ Limited

发明人： Philip Duncan Church ,  Robert Peter Claridge ,  Peter John Gould ,  Richard Gordon Townsley

IPC分类号： F42B1/032 ,  E21B43/117

摘要： An oil and gas well shaped charge perforator capable of providing an exothermic reaction after detonation is provided, comprising a housing (2), a high explosive (3), and a reactive liner (6) where the high explosive is positioned between the reactive liner and the housing. The reactive liner (6) is produced from a reactive composition which is capable of sustaining an exothermic reaction during the formation of the cutting jet. The composition is a pressed i.e. compacted particulate composition comprising at least two metals, wherein one of the metals is present as spherical particulate, and the other metal is present as a non-spherical particulate. There may also be at least one further metal, which is not capable of an exothermic reaction with the reactive composition, present in an amount greater than 10% w/w of the liner. To aid consolidation a binder may also be added.

公开(公告)号：US11215039B2

公开(公告)日：2022-01-04

申请号：US15930939

申请日：2020-05-13

申请人： QINETIQ LIMITED

发明人： Michael John Hinton ,  Philip Duncan Church ,  Richard Gordon Townsley ,  Peter John Gould

IPC分类号： E21B43/117 ,  F42B1/036 ,  F42B1/028

摘要： Some embodiments are directed to a shaped charge liner including an apex end and a base end and defining a main liner axis that passes through the apex and base ends, the liner being rotationally symmetric about the main liner axis wherein the liner has discrete rotational symmetry about the main liner axis.