公开(公告)号：US11761311B2

公开(公告)日：2023-09-19

申请号：US17457567

申请日：2021-12-03

申请人： Saudi Arabian Oil Company

发明人： Kaiming Xia

IPC分类号： E21B43/116 ,  E21B43/112 ,  E21B43/117 ,  E21B43/11

CPC分类号： E21B43/116 ,  E21B43/112 ,  E21B43/117 ,  E21B43/11

摘要： A perforation cluster of a longitudinal section of a wellbore is provided. The wellbore is for hydraulic fracturing in a preferred direction of a subsurface surrounding the longitudinal section. The longitudinal section has a longitudinal axis in a longitudinal direction and defining a radial direction about the longitudinal axis. The perforation cluster includes all of the perforations of the wellbore within the longitudinal section. The perforations are separated in the longitudinal and radial directions. Two perforations are adjacent in the longitudinal direction and have a first diameter. They also have respective centers that are aligned in the preferred direction with respect to the longitudinal axis and 180° apart in the radial direction, for initiating fractures through hydraulic fracturing in the subsurface. The remaining perforations have a second diameter smaller than the first diameter.

公开(公告)号：US20220389796A1

公开(公告)日：2022-12-08

申请号：US17775469

申请日：2020-11-09

申请人： CORETRAX GLOBAL LIMITED

发明人： Ryan Low ,  Fraser Paul John ,  Bodman Caledonia Cherish ,  Main Alexander James Scott

IPC分类号： E21B43/112 ,  E21B17/06

摘要： A downhole cutting tool (13) for perforating a tubular (14) in an oil or gas well comprises a body (4); radially moveable cutting members (3) mounted on the body (4); a helical profiled member (1) rotatable relative to the body (4); and activation members (2) axially movable relative to the body (4). Rotation of the helical profiled member (1) generates axial movement of the activation members (2), and the activation members (2) configured to actuate the cutting members (3) from a retracted configuration to an extended configuration.

公开(公告)号：US11499400B2

公开(公告)日：2022-11-15

申请号：US15734538

申请日：2019-06-12

申请人： TORSCH INC.

发明人： Grant George ,  Curtis Ring

IPC分类号： E21B43/112

摘要： An apparatus for punching holes in a casing comprises an elongate casing extending between first and second ends having a plurality of punches adapted to be selectably extended therefrom, the casing having a piston cavity therein, the first end of the casing being in fluidic communication with a pressurized fluid source, a slidable piston contained within the cavity separating the cavity into extension and retraction cavities wherein the extension cavity is operable to pressurize a rear surface of the plurality of punches and the retraction cavity is operable to pressurize a front surface of the plurality of punches and a valve assembly adapted to selectably connect the pressurized fluid source with the extension or retraction cavities so as to extend or retract the punches.

公开(公告)号：US20220213766A1

公开(公告)日：2022-07-07

申请号：US17566107

申请日：2021-12-30

申请人： GEODYNAMICS, INC.

发明人： Dennis ROESSLER

IPC分类号： E21B43/112 ,  E21B43/119

摘要： A non-explosive punch system for making perforations in a casing includes a housing extending along a longitudinal axis and configured to be deployed in a well; one or more punch elements configured to extend through a wall of the housing to perforate a casing of the well; an actuating device located within the housing and configured to actuate the one or more punch elements; and an energy supply device located within the housing and configured to use a pressure of a well fluid present in the casing, to actuate the actuating device. No explosive material is present in the punch system.

公开(公告)号：US10900332B2

公开(公告)日：2021-01-26

申请号：US15697308

申请日：2017-09-06

申请人： Saudi Arabian Oil Company

发明人： Hamoud Ali Al-Anazi

IPC分类号： E21B43/112 ,  E21B43/119 ,  E21B43/10 ,  E21B43/08 ,  E21B17/10

摘要： System and methods for providing a fluid flow path through a lower casing and a cement of a subterranean well includes a plurality of perforation tubes extending through a sidewall of a lower casing, the perforation tubes moveable from a retracted position to an extended position. In the retracted position a minor length of the perforation tubes is located outside of an outer diameter surface of the lower casing. In the extended position, a major length of the perforation tubes is located outside of the outer diameter surface of the lower casing, the major length being greater than the minor length. In the extended position, the perforation tubes extend radially outward from the outer diameter surface of the lower casing. Each of the plurality of perforation tubes is positioned axially along the lower casing to be moveable to an extended position in a formation zone of the subterranean well.

公开(公告)号：US10781677B2

公开(公告)日：2020-09-22

申请号：US15571143

申请日：2015-06-18

申请人： Halliburton Energy Services, Inc.

发明人： Matthew Craig Mlcak ,  Bryan William Kasperski

IPC分类号： E21B43/112 ,  E21B43/1185

摘要： In accordance with embodiments of the present disclosure, systems and methods for safely, and cost-effectively activating a mechanical perforator using a pyrotechnic initiated hydrostatic activating mechanism. The mechanism includes a piston connected to a power rod. The piston is activated by the rupturing of a disc, which separates a first chamber from a second chamber containing the piston. Upon rupturing of the disc, wellbore fluids fill the second chamber forcing the piston to move from a first position to a second position, which causes activation of the mechanical perforator. The first chamber may optionally be filled with a pressurized gas, such as nitrogen or air, to add a boost assist to activation of the piston.

公开(公告)号：US20200232299A1

公开(公告)日：2020-07-23

申请号：US16844738

申请日：2020-04-09

申请人： Saudi Arabian Oil Company

发明人： Ahmed Al-Mousa ,  Ahmed A. Al-Ramadhan

IPC分类号： E21B33/134 ,  E21B23/06 ,  E21B33/128 ,  E21B33/13 ,  E21B34/12 ,  E21B43/112

摘要： A well tool for cementing a portion of a well includes a cement retainer assembly and a capsule connected to the cement retainer assembly. The cement retainer assembly is configured to be disposed within a wellbore, and includes a ported sub and a cement retainer. The ported sub includes a port to flow cement out of the cement retainer assembly and into an annulus of the wellbore. The capsule includes a body defining an interior chamber of the capsule, where the interior chamber is configured to retain a fluid, and the capsule is configured to be disposed at a location within the wellbore and downhole of the cement retainer assembly.

公开(公告)号：US20200157904A1

公开(公告)日：2020-05-21

申请号：US16452183

申请日：2019-06-25

申请人： Alejandro Rodriguez

发明人： Alejandro Rodriguez

IPC分类号： E21B31/00 ,  E21B7/00 ,  E21B33/12 ,  E21B41/00 ,  E21B43/11 ,  E21B43/112 ,  E21B43/14 ,  E21B4/04

摘要： An automatic drilling apparatus having a tool body, a motive device connected to the tool body, and a drill bit connected to the tool body. The apparatus also includes a setting tool connected to the body, at least one sensor disposed on the tool body, and a computer disposed in the tool body, wherein the computer is configured to actuate the motive device, the drill bit, the setting tool, and the at least one sensor.

公开(公告)号：US10557312B2

公开(公告)日：2020-02-11

申请号：US15615112

申请日：2017-06-06

申请人： WELLTEC A/S

发明人： Tomas Sune Andersen

IPC分类号： E21B43/112 ,  E21B10/32 ,  E21B23/01 ,  E21B29/00 ,  E21B4/00 ,  E21B4/02 ,  E21B41/00

摘要： The present invention relates to a downhole operational tool for moving a tool part between a retracted position and a projected position in a well. The downhole operational tool comprises a tool body having an axial extension; the tool part being movable perpendicularly to the axial extension between the retracted position and the projected position; a projection actuator configured to project the tool part from the tool body by means of hydraulics, the projection actuator comprising an actuator housing and a projection piston configured to slide inside the actuator housing, the tool part being connected with the projection piston; and a retraction actuator comprising a spring element configured to retract the tool part into the tool body, the retraction actuator being connected with the projection piston so that when the projection actuator projects the tool part, the spring element is compressed. The spring element is arranged outside the actuator housing.

公开(公告)号：US10519737B2

公开(公告)日：2019-12-31

申请号：US15825383

申请日：2017-11-29

申请人： Baker Hughes, a GE company, LLC

发明人： Darin H. Duphorne ,  James Scott Sanchez ,  André J. Porter

IPC分类号： E21B43/112 ,  E21B49/06 ,  E21B29/06 ,  E21B43/26 ,  E21B33/124 ,  E21B7/06

摘要： A bottom hole assembly (BHA) and methods of using the BHA, the BHA having at least one tool configured to move between the interior and the exterior by fluid pumped down a string. The tool is configured to create a hole in a wellbore tubular, such as casing, tubing, or a liner. The BHA includes a ramp positioned adjacent to the tool to guide the tool to engage the tubular. The tool may be a mill configured to cut a hole in the tubular or a punch member configured to punch a hole in the tubular. A packing element of the BHA enables fluid to be pumped down the annulus and through the hole to treat and/or fracture the formation. The tool may be positioned between two packing elements and fluid may be pumped down the string and through a portion of the tool to treat and/or fracture the formation.