公开(公告)号：WO2022155497A1

公开(公告)日：2022-07-21

申请号：PCT/US2022/012563

申请日：2022-01-14

Applicant: HUNTING TITAN, INC.

Inventor： RAJARAM, Sridhar ,  DYESS, Adam ,  MAI, Jason, Hoang

IPC: E21B43/116 ,  E21B43/117 ,  E21B43/118 ,  E21B43/1185 ,  E21B43/119 ,  E21B47/024

Abstract: A method and apparatus for detecting the orientation of each perforating gun in a wellbore and using that information in arming and firing each perforating gun in a perforating gun string. The apparatus may include a perforating gun system comprising a perforating gun string having at least one perforating gun, the perforating gun further comprising: a housing, a charge tube, a plurality of shaped charges, a detonator cord having a distal end and further coupled to the plurality of shaped charges, a detonator located side-by-side with the distal end of the detonator cord, an electronic switch having an onboard accelerometer, wherein the switch selectively addresses and initiate a downhole ballistic device.

公开(公告)号：WO2022125155A1

公开(公告)日：2022-06-16

申请号：PCT/US2021/047435

申请日：2021-08-25

Applicant: RAYTHEON COMPANY [US]/[US]

Inventor： SADLER, Coulton ,  MOFFET, Mitchell ,  KIM, Henri Y.

IPC: E21B43/117 ,  F42B1/02 ,  F42B3/08 ,  F42B12/10 ,  F42B12/12

Abstract: An explosive device includes a housing having an outer surface and defining an inner space; a plurality of primary liners arranged on the outer surface in a spaced pattern and having primary energetic material inwardly positioned in the housing relative to the primary liners; an initiation mechanism in the inner space for initiating the primary energetic material to drive the primary liners; and a plurality of additional liners positioned in the spaced pattern between the primary liners and having additional energetic material positioned in proximity to the primary energetic material such that the additional energetic material is sympathetically initiated by initiation of the primary energetic material. The device can find useful application in a military setting and also in the perforation of well casings in subterranean wells.

公开(公告)号：WO2022104221A1

公开(公告)日：2022-05-19

申请号：PCT/US2021/059401

申请日：2021-11-15

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION ,  SCHLUMBERGER CANADA LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER TECHNOLOGY B.V.

Inventor： PRISBELL, Andrew ,  LOWE, Erick ,  KALAKONDA, Hari ,  GARZA, Jay

IPC: E21B43/117

Abstract: A perforation tool features a container with a longitudinal axis; an initiator module in the container, the initiator module having a firing circuit, an electrical contact at the longitudinal axis, and a detonator housing; and a shaped charge frame in the container, the shaped charge frame having a first end; a second end opposite the first end; a recess for accepting a shaped charge between the first end and the second end, the recess having a wide end and a narrow end, wherein the longitudinal axis is between the wide end and the narrow end; a first electrical contact at the first end, the first electrical contact located at the longitudinal axis; a second electrical contact at the second end, the second electrical contact located at the longitudinal axis; an electrical conductor connecting the first and second contacts; and a ballistic pathway coupling the detonator housing to the narrow end of the recess.

公开(公告)号：WO2022015921A1

公开(公告)日：2022-01-20

申请号：PCT/US2021/041736

申请日：2021-07-15

Applicant: BAKER HUGHES OILFIELD OPERATIONS LLC

Inventor： RAFIE, Saeed

IPC: E21B17/07 ,  E21B23/04 ,  E21B43/11 ,  E21B43/116 ,  E21B43/117 ,  E21B43/263 ,  E21B43/119 ,  F16F2224/0208 ,  F16F2226/04 ,  F16F7/003 ,  F16F7/12

Abstract: A downhole perforation system (110) includes a ballistic device (116) having an first end and a second end, the ballistic device (116) carrying an explosive material. The system (110) further includes a shock absorption device (120, 200) coupled to at least one of the first or second end of the ballistic device (116) and configured to absorb at least a portion of impact energy produced from detonation of the explosive material. The shock absorption device (120, 200) includes a shock absorption module (204, 300) which includes a viscoelastic body (302) and a rigid structure (304) molded within the viscoelastic body (302). The rigid structure (304) is configured to break or deform when impacted by a threshold amount of impact energy. Broken or deformed portions of the rigid structure (304) are contained within the viscoelastic body (302).

公开(公告)号：WO2021247511A1

公开(公告)日：2021-12-09

申请号：PCT/US2021/035160

申请日：2021-06-01

Applicant: EXPRO AMERICAS, LLC

Inventor： DALY, Kerry G.

IPC: E21B43/117 ,  C06B21/00 ,  C06B21/0091 ,  E21B43/116 ,  F42D5/04

Abstract: A perforating gun assembly includes a body having an axial length extending between a first axial end and a second axial end, an outer radial surface extending between the first axial end and the second axial end, and an inner bore and at least one explosive charge extending from the outer radial surface to the inner bore. The at least one explosive charge includes a charge casing and a cavity liner mounted within the charge casing. The charge casing and the cavity liner define a charge cavity there between. The at least one explosive charge further includes an explosive material retained within the charge cavity. The at least one explosive charge further includes a deactivation composition retained within the charge cavity.

公开(公告)号：WO2021150252A1

公开(公告)日：2021-07-29

申请号：PCT/US2020/016374

申请日：2020-02-03

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： MACGILLIVRAY, Joseph T.

IPC: E21B43/1185 ,  F42D1/045 ,  F42D3/00 ,  E21B43/117 ,  H05K1/0216 ,  H05K1/0259 ,  H05K1/115 ,  H05K1/14 ,  H05K5/0026 ,  H05K5/0247

Abstract: A detonator module provides for the use of a wide range of different addressable switches for use in perforating guns. The detonator module permits pre-assembly of a desired addressable switch and conforms the electrical connectivity to a particular perforating gun. In this manner, nearly any addressable switch can be used from any manufacturer despite having different sizes or wiring layouts. The pre-assembled detonator module can be safely shipped due to a safety shunt that can be removed on site prior to installation into a perforating gun. In one sense, the detonator module permits conformance of multiple different types of addressable switches to a particular type or model of perforating gun, permitting flexible choice of addressable switch for a particular project.

公开(公告)号：WO2020163745A1

公开(公告)日：2020-08-13

申请号：PCT/US2020/017262

申请日：2020-02-07

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION ,  SCHLUMBERGER CANADA LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER TECHNOLOGY B.V.

Inventor： GUPTA, Ashutosh ,  D'MELLO, Stephen ,  PRISBELL, Andrew ,  KALAKONDA, Hari Prakash ,  DESHMUKH, Rucha

IPC: E21B43/117 ,  E21B43/119

Abstract: The present disclosure provides a loading tube to be used in a perforating gun. The loading tube is capable of securely engaging with shaped charges while maintaining the structural integrity and being made by injection molding.

公开(公告)号：WO2020139386A1

公开(公告)日：2020-07-02

申请号：PCT/US2018/067990

申请日：2018-12-28

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： BARKER, James Marshall ,  STARK, Daniel Joshua ,  ABASS, Hazim Hussein

IPC: E21B43/117 ,  E21B41/00

Abstract: This disclosure describes the construction and use of an instrument test fixture for capturing performance data for stimulation or fracturing treatments. The test fixture includes a target material, such as concrete, which includes embedded sensors surrounding a casing. An energetic stimulation treatment, such as a dynamic pulse fracturing technique, is applied through the casing to the target material to simulate a treatment that would be performed in a wellbore. During application of the treatment, the sensors capture measurements which are recorded for analysis by a data collection system. The sensors allow for the measurement of key performance indicators including static and dynamic pressure, generated temperature, and resulting strain energy. The captured data can be analyzed and used to design and optimize stimulation treatments for field applications.

公开(公告)号：WO2020131110A1

公开(公告)日：2020-06-25

申请号：PCT/US2018/067222

申请日：2018-12-21

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： GROVE, Brenden Michael ,  METZGER, Jason

IPC: E21B43/117 ,  E21B43/119

Abstract: The present disclosure provides an embodiment of a perforating gun assembly for use in a wellbore. The perforating gun assembly, in one example includes a carrier gun body. The perforating gun assembly, in this example, further includes a plurality of shaped charges supported within the carrier gun body, wherein each shaped charge may include a case exterior, the case exterior including an outer surface, and an inner surface forming a cavity, a liner located within the cavity, and explosive material located within a gap between the inner surface of the case exterior and the liner. The perforating gun assembly, in this example, may further include one or more momentum traps positioned between one or more adjacent shaped charges.

公开(公告)号：WO2020112089A1

公开(公告)日：2020-06-04

申请号：PCT/US2018/062630

申请日：2018-11-27

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： HAGGERTY, Dennis J.

IPC: G01N3/313 ,  G01N15/08 ,  E21B43/117 ,  F42B1/028

Abstract: A method includes determining a perforation tunnel geometry of a perforation tunnel in a solid sample, the perforation tunnel created by activating a shaped charge in proximity to the solid sample. The method also includes performing a first flow test on the solid sample and creating an analog aperture having an aperture geometry in a solid sample analog of the solid sample, wherein the aperture geometry and the perforation tunnel geometry satisfies a similarity threshold. The method also includes performing a second flow test on the solid sample analog and determining a shaped charge effect based on a comparison between a second flow test result and a first flow test result.