公开(公告)号：US20220074719A1

公开(公告)日：2022-03-10

申请号：US17189366

申请日：2021-03-02

Applicant: GEODYNAMICS, INC.

Inventor： Wenbo YANG

IPC: F42B3/22 ,  F42B1/036 ,  F42B1/028 ,  E21B43/117

Abstract: A shaped charge is configured to make a non-circular perforation into a casing. The shaped charge includes a case having a side wall that extends between an open top region and a base; an asymmetric initiation insert configured to fit within the case; an explosive material placed over the asymmetric initiation insert and in contact with the side wall of the case; and a liner placed over the explosive material, to hold the explosive material within the case. The asymmetric initiation insert has a body that includes first and second channels that extend from a bottom surface to a top surface of the body, so that a detonation at the bottom surface is directed to first and second initiation points, that correspond to the first and second channels.

公开(公告)号：US20210131770A1

公开(公告)日：2021-05-06

申请号：US17118604

申请日：2020-12-11

Applicant: Hunting Titan, Inc.

Inventor： Laura Montoya Ashton ,  William R. Collins ,  Charles Levine ,  Debra Christine McDonald ,  Aaron Lee McGregor ,  Bradley Dean Schulte ,  Shane Matthew Wilson

IPC: F42B1/028 ,  F42B1/036 ,  F42B1/02 ,  E21B43/119 ,  F42B3/08

Abstract: A shaped charge retainer ring for use in containing the liner of a shaped charge and the explosive material.

公开(公告)号：US10914144B2

公开(公告)日：2021-02-09

申请号：US16483082

申请日：2018-02-02

Applicant: GEODYNAMICS, INC.

Inventor： John T. Hardesty ,  Wenbo Yang ,  James A. Rollins ,  Kevin Wutherich ,  Ross Harvey

IPC: E21B43/117 ,  E21B43/119 ,  E21B43/1185 ,  E21B43/267 ,  F42B1/036 ,  F42B12/76

Abstract: A perforating gun system with at least one gun. Each of the perforating guns have charges disposed in a gun carrier that are angled to the longitudinal axis of the gun to achieve a predetermined proppant transport profile into clusters within a stage in a well casing. The perforation tunnels may also have burrs on each side of the casing and acts in initially aiding proppant transport during fracture treatment. A method of tuning a cluster to achieve a desired fracturing treatment based on a feedback from another cluster includes selecting a hole diameter, a hole angle for creating an angled opening, a discharge coefficient, and a proppant efficiency. Moreover, a method of improving perforation charge efficiency.

公开(公告)号：US20200378730A1

公开(公告)日：2020-12-03

申请号：US16766342

申请日：2018-11-23

Applicant: SAAB AB

Inventor： Sofia SILANPAEAE ,  Thomas WIDLUND

IPC: F42B1/032 ,  F42B1/036

Abstract: The present invention relates to a liner for shaped charge for penetrating hard targets, wherein the liner comprises i) a carrier having a density below 9500 kg/m3; and ii) a coating deposited on said carrier comprising at least one metal and/or metal oxide, wherein the coating has a density greater than 10000 kg/m3; wherein the thickness ratio of the carrier to the coating ranges from 100:1 to 1:1, and wherein the oxygen content in the coating is less than 100 ppm atomic. The invention also relates to a method of producing such shaped charge liner and the use 0 thereof in a projectile for penetrating a hard military target.

公开(公告)号：US20200048997A1

公开(公告)日：2020-02-13

申请号：US16600905

申请日：2019-10-14

Applicant: Schlumberger Technology Corporation

Inventor： David Skyler

IPC: E21B43/117 ,  F42D5/00 ,  F42C15/36 ,  F42C15/38 ,  F42B1/032 ,  F42B1/036 ,  F42B1/02 ,  E21B43/1185

Abstract: A non-detonable shaped charge capable of becoming detonable upon activation. The shaped charge may be utilized for use with a perforating gun in oilfield applications. In this regard, during transport and other handling in advance of reaching the application site, the charge may be non-detonable. However, upon an intentionally directed activation, such as through heating, the shaped charge may be detonable.

公开(公告)号：US20190316242A1

公开(公告)日：2019-10-17

申请号：US16292361

申请日：2019-03-05

Applicant: No.59 Research Institute of China Ordnance Industry

Inventor： Qiang CHEN ,  Dayu SHU ,  Qiang ZHAO ,  Zude ZHAO ,  Luchang CHE ,  Yang WU ,  Chuankai HU ,  Hui LI

IPC: C22F1/08 ,  F42B1/036

Abstract: A gradient control method for a microstructure ultrafine crystallization of a deep cone copper shaped charge liner includes the steps of an extrusion forming, a recrystallization heat treatment, and a high-frequency percussion. A multi-pass extrusion is used in the extrusion forming, and in the high-frequency percussion step, a percussion speed is 30,000 to 40,000 times/min, a percussion force is 1600 N to 2000 N, and a number of percussion times is 1 to 3. The forming and surface quality control of the deep cone shaped charge liner are realized by the control technology of the present invention; the plasticity of the material is improved, and fine crystal structures are obtained; and an ultrafine grain gradient structure distributed along the thickness direction is formed in the inner surface of the shaped charge liner.

公开(公告)号：US10352136B2

公开(公告)日：2019-07-16

申请号：US15312120

申请日：2015-05-15

Applicant: Sergio F Goyeneche

Inventor： Sergio F Goyeneche

IPC: E21B43/117 ,  E21B43/118 ,  E21B43/119 ,  E21B43/263 ,  F42B1/036

Abstract: A gun assembly for perforating wells comprising a plurality of guns with shape charges aligned centrically by end caps having insulated connector pins for conducting electrical signals and pressure through the end caps while preventing debris from the blast of one gun from entering and damaging the electrical connections and components of the next gun. The end caps being interconnected physically and electrically by specialized intermediate subs.

公开(公告)号：US10041769B2

公开(公告)日：2018-08-07

申请号：US15059273

申请日：2016-03-02

Applicant: Schlumberger Technology Corporation

Inventor： Allan W. King ,  Richard T. Caminari

IPC: E21B43/117 ,  F42B1/036 ,  B22F3/12 ,  E21B43/118 ,  B22F3/24

Abstract: A shaped charge includes a casing defining an interior volume, wherein the casing is prepared by sintering a metal powder or a mixture of metal powders; a liner located in the interior volume; and an explosive between the liner and the casing. A method for manufacturing a shaped charge casing includes the steps of mixing a metal powder or a metal powder mixture with a binder to form a pre-mix; pressing the pre-mix in a mold to form a casing green body; heating the casing green body to a first temperature to vaporize the binder; raising the temperature to a second temperature in an inert or reducing atmosphere to sinter the metal powder or the metal powder mixture to produce the shaped charge casing.

公开(公告)号：US20170199015A1

公开(公告)日：2017-07-13

申请号：US15313019

申请日：2015-05-21

Applicant: Hunting Titan, Inc.

Inventor： William R. Collins ,  Debra Christine McDonald ,  Bradley Dean Schulte

IPC: F42B1/02 ,  F42B33/02 ,  F42D1/04 ,  F42B1/036

Abstract: An apparatus and method for locking a detonating cord against a shaped charge.

公开(公告)号：US20170108314A1

公开(公告)日：2017-04-20

申请号：US15172424

申请日：2016-06-03

Applicant: Innovative Defense, LLC

Inventor： Nicholas Collier

IPC: F42B1/028 ,  F42C19/12 ,  F42B1/036

CPC classification number: F24B1/028 ,  F42B1/028 ,  F42B1/036 ,  F42B33/00 ,  F42C19/12

Abstract: This invention is an array of liners in an axilinear shaped charge device, such as a multiple component axilinear fluted linear liner that will be mated to high explosive that is housed in a single common containment body or a circular configuration of a six segment fluted Axilinear liner, which will be mated to high explosive and housed in a single common containment body. This connected liner variation of the Axilinear device can be straight, circular or in a curved spline arrangement, and each component of this novel Linear device can be on the path line of the spline or staggered about the path line, furthermore the orientation of the planer collapse of the fluted wing segments can be other than parallel or tangent to the spline path.