公开(公告)号：US20250129673A1

公开(公告)日：2025-04-24

申请号：US18492383

申请日：2023-10-23

Applicant: Schlumberger Technology Corporation

Inventor： Youhe Zhang ,  Huimin Song ,  Lijun Song

IPC: E21B10/61 ,  B23K1/00 ,  B23K101/00 ,  E21B10/55 ,  E21B10/60

Abstract: A cleaning cutting element includes an ultrahard layer joined to a substrate. The substrate includes a substrate bore formed at least partially therethrough. The substrate includes a plurality of conduits that extend from the substrate bore at a junction. The conduits exit the substrate at an exit opening in the circumferential wall to direct drilling fluid to a feature of the bit to which the cleaning cutting element is secured.

公开(公告)号：US20220112773A1

公开(公告)日：2022-04-14

申请号：US17560409

申请日：2021-12-23

Applicant: Schlumberger Technology Corporation

Inventor： Chen Chen ,  Huimin Song ,  Liang Zhao ,  Youhe Zhang ,  Michael G. Azar ,  Xiaoge Gan ,  Madapusi K. Keshavan ,  Zhijun Lin ,  Bala Durairajan ,  Michael L. Stewart

IPC: E21B10/567 ,  E21B10/573

Abstract: A cutting element may include a substrate and an ultrahard layer. A top surface of the ultrahard layer includes a peripheral edge extending around the cutting element, a cutting crest extending across a major dimension of the cutting element from a cutting edge at a first portion of the peripheral edge to a modified region at a central axis of the ultrahard layer, and a lateral portion extending across a minor dimension of the cutting element from the peripheral edge to the modified region. The modified region along the major dimension includes a concave cross-sectional shape. The lateral portion along the minor dimension from the peripheral edge to the modified region includes one or more of a linear shape and a convex shape, and the modified region along the minor dimension includes a planar shape perpendicular to the central axis.

公开(公告)号：US20210222497A1

公开(公告)日：2021-07-22

申请号：US17151306

申请日：2021-01-18

Applicant: Schlumberger Technology Corporation

Inventor： Youhe Zhang ,  Mingdong Cai ,  Sudarsanam Chellappa ,  Huimin Song ,  Ting Ren

IPC: E21B10/46 ,  B22D23/06 ,  B22D19/06 ,  B33Y80/00

Abstract: The disclosed drill tools have metal matrix composite (MMC) or steel alloy bodies that are formed around one or more pre-fabricated components using either a casting or infiltration process. The pre-fabricated components are made of sintered, infiltrated, and/or cemented particles of an ultrahard material, and may form any suitable portion of the bit blades. The pre-fabricated components may be loaded into a machined mold, and the mold cavity is subsequently filled with powder, such as tungsten carbide powder, filler metal powder, binder metal powder, or combinations thereof. During a casting or infiltration process, the mold and pre-fabricated components are heated to a sufficient temperature to melt the binder metal and/or filler metal, wherein the molten metal superficially interacts with the inner surfaces of the pre-fabricated components to form a metallurgical bond to secure the pre-fabricated components to the bit body.

公开(公告)号：US12139969B2

公开(公告)日：2024-11-12

申请号：US18492074

申请日：2023-10-23

Applicant: Schlumberger Technology Corporation

Inventor： Xiaoge Gan ,  Anjie Dong ,  Gerard Johnson ,  Michael George Azar ,  Huimin Song ,  Youhe Zhang ,  Venkatesh Karuppiah

IPC: E21B10/567 ,  E21B10/55 ,  B22F5/00

Abstract: A cutting element includes a body, a non-planar cutting face formed on a first end of the body, and an edge formed around a perimeter of the cutting face. The cutting face includes a central raised portion, and the edge has an edge angle defined between the cutting face and a side surface of the body. The edge angle varies around the perimeter of the cutting face and includes an acute edge angle defined by a portion of the cutting face extending downwardly from the edge to a depth from the cutting angle. The portion of the edge defining the acute edge angle may be directly adjacent: a side surface of the cutting element; a bevel of the cutting element; or a flat region at the perimeter of the cutting element or bevel.

公开(公告)号：US20240044213A1

公开(公告)日：2024-02-08

申请号：US18492074

申请日：2023-10-23

Applicant: Schlumberger Technology Corporation

Inventor： Xiaoge Gan ,  Anjie Dong ,  Gerard Johnson ,  Michael George Azar ,  Huimin Song ,  Youhe Zhang ,  Venkatesh Karuppiah

IPC: E21B10/567 ,  E21B10/55

CPC classification number: E21B10/5676 ,  E21B10/55 ,  E21B10/5671 ,  B22F2005/001

Abstract: A cutting element includes a body, a non-planar cutting face formed on a first end of the body, and an edge formed around a perimeter of the cutting face. The cutting face includes a central raised portion, and the edge has an edge angle defined between the cutting face and a side surface of the body. The edge angle varies around the perimeter of the cutting face and includes an acute edge angle defined by a portion of the cutting face extending downwardly from the edge to a depth from the cutting angle. The portion of the edge defining the acute edge angle may be directly adjacent: a side surface of the cutting element; a bevel of the cutting element; or a flat region at the perimeter of the cutting element or bevel.

公开(公告)号：US20240011358A1

公开(公告)日：2024-01-11

申请号：US18043143

申请日：2021-08-26

Applicant: Schlumberger Technology Corporation

Inventor： Huimin Song ,  Youhe Zhang ,  Sudarsanam Chellappa ,  Ting Ren

IPC: E21B12/04

CPC classification number: E21B12/04

Abstract: A blade on a downhole drilling tool includes a blade body and a blade cover. The blade cover is pre-sintered and conforming to the blade outer shape. The blade cover is attached to the blade body. The blade cover includes a seamless connection between a cover leading face and a cover outer face to reduce wear on the outer face of the blade.

公开(公告)号：US20240003193A1

公开(公告)日：2024-01-04

申请号：US18469614

申请日：2023-09-19

Applicant: Schlumberger Technology Corporation

Inventor： Huimin Song ,  Xiaoge Gan ,  Zhijun Lin ,  Ke Chen

IPC: E21B10/567 ,  E21B10/573 ,  E21B10/55

CPC classification number: E21B10/5673 ,  E21B10/5735 ,  E21B10/55 ,  B22F2005/001

Abstract: A cutting element may include a substrate; and an ultrahard layer on the substrate, the substrate and the ultrahard layer defining a non-planar working surface of the cutting element such that the ultrahard layer forms a cutting portion and the substrate is at least laterally adjacent to the ultrahard layer. Another cutting element includes a pointed region having a side surface extending from the pointed region outer perimeter to a peak. An ultrahard material body forms a portion of the pointed region including the peak, and a base region extends a depth from the pointed region outer perimeter. The ultrahard material body has a height to width aspect ratio with the height and width measured between two points of the body having the greatest distance apart along a dimension parallel with a longitudinal axis (i.e., height) along a dimension perpendicular to the longitudinal axis (i.e., width).

公开(公告)号：US20210381318A1

公开(公告)日：2021-12-09

申请号：US17408991

申请日：2021-08-23

Applicant: Schlumberger Technology Corporation

Inventor： Xiaoge Gan ,  Anjie Dong ,  Gerard Johnson ,  Michael George Azar ,  Huimin Song ,  Youhe Zhang ,  Venkatesh Karuppiah

IPC: E21B10/567 ,  E21B10/55

Abstract: A cutting element includes a body, a non-planar cutting face formed on a first end of the body, and an edge formed around a perimeter of the cutting face. The cutting face includes a central raised portion, and the edge has an edge angle defined between the cutting face and a side surface of the body. The edge angle varies around the perimeter of the cutting face and includes an acute edge angle defined by a portion of the cutting face extending downwardly from the edge to a depth from the cutting angle. The portion of the edge defining the acute edge angle may be directly adjacent: a side surface of the cutting element; a bevel of the cutting element; or a flat region at the perimeter of the cutting element or bevel.

公开(公告)号：US20240287854A1

公开(公告)日：2024-08-29

申请号：US18573084

申请日：2022-06-24

Applicant: Schlumberger Technology Corporation

Inventor： Youhe Zhang ,  Huimin Song ,  Steven G. Villareal

IPC: E21B10/573 ,  E21B10/60

CPC classification number: E21B10/573 ,  E21B10/60

Abstract: A downhole tool includes a body with an interior volume and an exterior surface, a cavity in the interior volume of the body, a port located in the body, and an erosion-resistant insert. The port provides fluid communication from the cavity through the body to the exterior surface. The erosion-resistant insert is positioned in the interior volume proximate an inlet of the port, and an aperture through the erosion-resistant insert aligns with the port.

公开(公告)号：US12031386B2

公开(公告)日：2024-07-09

申请号：US18043143

申请日：2021-08-26

Applicant: Schlumberger Technology Corporation

Inventor： Huimin Song ,  Youhe Zhang ,  Sudarsanam Chellappa ,  Ting Ren

IPC: E21B12/04

CPC classification number: E21B12/04

Abstract: A blade on a downhole drilling tool includes a blade body and a blade cover. The blade cover is pre-sintered and conforming to the blade outer shape. The blade cover is attached to the blade body. The blade cover includes a seamless connection between a cover leading face and a cover outer face to reduce wear on the outer face of the blade.