公开(公告)号：WO2023019106A1

公开(公告)日：2023-02-16

申请号：PCT/US2022/074662

申请日：2022-08-08

Applicant: BAKER HUGHES OILFIELD OPERATIONS LLC

Inventor： AVAGLIANO, Aaron ,  SAKTHIVEL, Navin ,  WIENEKE, Brian

IPC: G01V1/52 ,  E21B47/14 ,  B06B1/06

Abstract: An acoustic generator including a piezoelectric crystal, an impedance matching layer directly bonded to the crystal with Van der Waals forces.

公开(公告)号：WO2022272232A1

公开(公告)日：2022-12-29

申请号：PCT/US2022/073023

申请日：2022-06-17

Applicant: BAKER HUGHES OILFIELD OPERATIONS LLC

Inventor： SAKTHIVEL, Navin ,  AVAGLIANO, Aaron ,  SHAIKH, Farhat ,  CHEN, Wei ,  LU, Dan

IPC: G01K5/52 ,  G01K5/56 ,  G01K5/48 ,  G01K1/02 ,  G01K1/12 ,  B22F10/00 ,  B22F2301/15 ,  B22F2301/20 ,  B22F7/062 ,  B33Y10/00 ,  B33Y80/00 ,  E21B47/017 ,  G01D11/30

Abstract: A method of forming a high temperature sensor includes preparing a substrate having a surface from an electrically insulative material having a first coefficient of thermal expansion (CTE), preparing an electrical conductor from a metal material having a second CTE that is different from the first CTE, and creating an interface between the electrical conductor and the substrate with a CTE blending medium that is provided between the substrate and the electrical conductor. The CTE blending medium accommodates differing thermal expansion rates of the sub state and the electrical conductor at temperatures of at least 700°C.

公开(公告)号：WO2022236249A1

公开(公告)日：2022-11-10

申请号：PCT/US2022/072049

申请日：2022-05-02

Applicant: BAKER HUGHES OILFIELD OPERATIONS LLC

Inventor： CHEN, Wei ,  SAKTHIVEL, Navin ,  AVAGLIANO, Aaron

IPC: B22F10/16 ,  B22F10/28 ,  B22F3/105 ,  B22F3/03 ,  B33Y10/00

Abstract: A method of additive manufacturing may include disposing a layer of a powder material on a surface of a build platform of an additive manufacturing apparatus. The method may also include placing a compaction platform comprising one or more transducers in contact with an upper surface of the layer of the powder material. The method may additionally include activating at least one transducer of one or more transducers of the compaction platform of the compactor to densify a portion of the layer of the powder material below the at least one transducer while at least the weight of the compaction platform applies a normal force to the layer of the powder material. Related systems for densifying additively manufactured components are also described.

公开(公告)号：WO2022213069A2

公开(公告)日：2022-10-06

申请号：PCT/US2022/071411

申请日：2022-03-29

Applicant: BAKER HUGHES OILFIELD OPERATIONS LLC

Inventor： SAKTHIVEL, Navin ,  AVAGLIANO, Aaron ,  YATES, Chad

IPC: H01L35/02 ,  H01L35/32 ,  H01L35/34 ,  H01L35/16 ,  H01L35/22

Abstract: An enclosure for a thermoelectric generator may include bonded particles of an allotrope of carbon, such as diamond particles, graphene particles, and/or carbon nanotube particles. A thermoelectric generator system may include one or more thermoelectric generators positioned at least partially within the enclosure. The enclosure may be manufactured using an additive manufacturing process which may include providing particles of an allotrope of carbon, and selectively binding a portion of the particles with a binder material. The bound particles may then be sintered to form the enclosure.

公开(公告)号：WO2022186847A1

公开(公告)日：2022-09-09

申请号：PCT/US2021/033906

申请日：2021-05-24

Applicant: BAKER HUGHES OILFIELD OPERATIONS LLC

Inventor： CHAUDHRY, Gunaranjan ,  JAIN, Jayesh, Rameshlal ,  DOBROWOLSKI, Thomas ,  YATES, Chad ,  AVAGLIANO, Aaron

IPC: B23K26/342 ,  G06N20/00

Abstract: Methods for anomaly detection in additive manufacture using meltpool monitoring are disclosed. A method includes obtaining a process model representative of an object to be generated through additive manufacture. The method also includes generating, based on the process model and using a hybrid machine-learning model, an instruction for generating the object through additive manufacture. Another method includes generating a layer of an object, and taking a reading relative to the generation of the layer. The other method also includes updating, based on the reading and using a hybrid machine-learning model, a process model, the process model representative of the object. The other method also includes generating, based on the updated process model and using the hybrid machine- learning model, an instruction for generating a subsequent layer of the object through additive manufacture. Related systems and devices are also disclosed.