公开(公告)号：WO2020014082A1

公开(公告)日：2020-01-16

申请号：PCT/US2019/040674

申请日：2019-07-05

Applicant: SMITH INTERNATIONAL, INC.

Inventor： PORTWOOD, Gary R. ,  PALLESI, Simone ,  CECHI, Alessio ,  BERTINI, Alessandro

IPC: E21B10/38 ,  E21B10/40 ,  E21B10/00

Abstract: A drill bit includes a bit body with high and low fluid pressure bodies. The low-ressure bit body includes a fixed cutting structure, and the high-pressure bit body includes at least one high-pressure fluid channel and nozzle capable of withstanding fluid pressures greater than 40 kpsi (276 MPa). A bottomhole assembly includes a drill bit with a bit body having fixed cutter and fluid jetting portions. Low and high-pressure channels in the bit body exit in the fixed cutter and fluid jetting portions. A high-pressure nozzle is coupled to the fluid jetting portion and the high-pressure fluid channel, and a plurality of fixed cutting elements are coupled to the fixed cutter portion. A pressure intensifier is coupled to the drill bit and is configured to increase a pressure of a fluid supplied to the high-pressure fluid channel in the bit body.

公开(公告)号：WO2019226505A1

公开(公告)日：2019-11-28

申请号：PCT/US2019/033035

申请日：2019-05-20

Applicant: SMITH INTERNATIONAL, INC.

Inventor： PORTWOOD, Gary R. ,  TEDESCHI, Luca ,  BERTINI, Alessandro ,  PALLESI, Simone ,  OBERMAIR, Johann ,  LARSEN, James Layne ,  CECHI, Alessio

IPC: E21B10/60 ,  E21B17/18 ,  E21B41/00

Abstract: A cutting bit includes a bit body and high-pressure body with a high-pressure fluid conduit therethrough. The high-pressure body and bit body are joined together. The high-pressure fluid conduit is configured to convey a fluid at greater than 14.5 ksi, and in some embodiments greater than 40 ksi. The high-pressure fluid conduit may direct the fluid through a nozzle in a fluid jet to weaken material, such as an earth formation. The cutting bit includes at least one roller cone and/or blades with cutting elements thereon to remove the weakened material. A cutting bit includes both high and low-pressure fluid conduits, and high and low-pressure fluid nozzles. The high-pressure nozzles receive fluid flow from a downhole pressure intensifier, and a connection between the bit and the downhole pressure intensifier includes rigid connectors, flexible connectors, or a combination thereof.

公开(公告)号：WO2016028662A1

公开(公告)日：2016-02-25

申请号：PCT/US2015/045460

申请日：2015-08-17

Applicant: SMITH INTERNATIONAL, INC.

Inventor： MUZZI, Giuseppe ,  GRIFFO, Anthony ,  ROTH, Cary A. ,  WHITE, Alysia C. ,  BERTINI, Alessandro ,  PORCIANI, Claudiano ,  MICHELOTTI, Renato ,  CECHI, Alessio

IPC: B22F3/105 ,  E21B10/46 ,  C21D1/09 ,  C21D9/22 ,  C21D10/00 ,  B22F7/06

CPC classification number: E21B17/1085 ,  B22F7/06 ,  C21D1/06 ,  C21D9/22 ,  C21D10/00 ,  C21D2251/04 ,  C21D2261/00

Abstract: Implementations of the present disclosure relate to apparatuses, systems, and methods for automated hardfacing of a surface. The automated hardfacing of a surface may include securing tiles of a superhard material on a surface, applying hardfacing material around the tiles, and fusing the hardfacing material using a thermal energy source. The thermal energy source and the assembly of the surface, hardfacing material, and tiles may be moved automatically relative to one another according to a pattern.

Abstract translation: 本公开的实施方式涉及用于表面的自动化表面硬化的装置，系统和方法。 表面的自动表面硬化可以包括将超硬材料的瓦片固定在表面上，在瓦片周围施加表面硬化材料，以及使用热能源来熔合表面硬化材料。 根据图案，热能源和表面，表面硬化材料和瓦片的组合可以相对于彼此自动移动。