公开(公告)号：US20240263521A1

公开(公告)日：2024-08-08

申请号：US18613261

申请日：2024-03-22

Applicant: Schlumberger Technology Corporation

Inventor： Andrew Mueller ,  Dennis Patrick Chesnutt ,  Ke Chen ,  Xiaoge Gan ,  Venkatesh Karuppiah

IPC: E21B7/06

CPC classification number: E21B7/062

Abstract: A downhole tool has a directional pad that contacts a wellbore wall at a pad contact location and a drill bit with at least one active cutting element that contacts the wellbore wall at a cutting element contact location. A contact distance between the pad contact location and the cutting element contact location being 3 in. (7.6 cm) or less.

公开(公告)号：US20220156429A1

公开(公告)日：2022-05-19

申请号：US17454723

申请日：2021-11-12

Applicant: Schlumberger Technology Corporation

Inventor： Xiaoge Gan ,  Ke Chen ,  Yansong Huang ,  Paul Bolchover

IPC: G06F30/17 ,  E21B41/00

Abstract: A method for designing a drill bit includes simulating a cutting element cutting a digitized rock sample, storing outputs from the simulating in a digital rock interaction file, modeling the drill bit to have at least one of the cutting element, and using data in the digital rock interaction file to simulate the drill bit in a drilling operation

公开(公告)号：US10662722B2

公开(公告)日：2020-05-26

申请号：US16191110

申请日：2018-11-14

Applicant: Schlumberger Technology Corporation

Inventor： Xiaoge Gan ,  Ke Chen ,  Venkatesh Karuppiah ,  Anthony L. Collins ,  Ke Ken Li ,  Fei Song ,  Rakesh Singh ,  Michael Hui Du ,  Keith Moriarty

IPC: E21B17/042 ,  F16L15/06 ,  E21B10/42

Abstract: A thread structure in accordance to one or more embodiments includes a thread extending helically along a portion of a bit body in spaced thread turns, the thread having a crest extending between a first flank and a second flank and a root extending between the thread turns, the root having a curvature defined by a portion of an ellipse tangentially adjoining the first and second flank at respective flank transition points, the ellipse having a major axis extending parallel to the axis and a minor axis extending perpendicular to the major axis and through a root bottom.

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：US12123262B2

公开(公告)日：2024-10-22

申请号：US18253602

申请日：2021-11-23

Applicant: Schlumberger Technology Corporation

Inventor： Youhe Zhang ,  Yuri Burhan ,  Ke Chen ,  Xiaoge Gan

IPC: E21B10/567 ,  E21B10/55 ,  E21B10/62

CPC classification number: E21B10/5673 ,  E21B10/55 ,  E21B10/62

Abstract: A cutting element has a cutting face at an axial end of the cutting element, a peripheral surface extending circumferentially around the cutting face, and a cutting edge formed between the cutting face and the peripheral surface. The cutting face has a non-planar geometry including a central region around a longitudinal axis of the cutting element, a plurality of grooves extending radially from a boundary of the central region to the cutting edge, wherein each groove has a base with a curved cross-sectional profile, and a plurality of lobes alternatingly formed between the plurality of grooves, wherein each lobe has a cross-sectional profile comprising an apex and opposite side surfaces sloping downwardly a distance from the apex to the base of adjacent grooves.

公开(公告)号：US11939867B2

公开(公告)日：2024-03-26

申请号：US17310625

申请日：2020-02-14

Applicant: Schlumberger Technology Corporation

Inventor： Andrew Mueller ,  Dennis Patrick Chesnutt ,  Ke Chen ,  Xiaoge Gan ,  Venkatesh Karuppiah

IPC: E21B7/06

CPC classification number: E21B7/062

Abstract: A downhole tool has a directional pad that contacts a wellbore wall at a pad contact location and a drill bit with at least one active cutting element that contacts the wellbore wall at a cutting element contact location. A contact distance between the pad contact location and the cutting element contact location being 3 in. (7.6 cm) or less.

公开(公告)号：US20230417109A1

公开(公告)日：2023-12-28

申请号：US18253602

申请日：2021-11-23

Applicant: Schlumberger Technology Corporation

Inventor： Youhe Zhang ,  Yuri Burhan ,  Ke Chen ,  Xiaoge Gan

IPC: E21B10/567 ,  E21B10/55

CPC classification number: E21B10/5673 ,  E21B10/55

Abstract: A cutting element has a cutting face at an axial end of the cutting element, a peripheral surface extending circumferentially around the cutting face, and a cutting edge formed between the cutting face and the peripheral surface. The cutting face has a non-planar geometry including a central region around a longitudinal axis of the cutting element, a plurality of grooves extending radially from a boundary of the central region to the cutting edge, wherein each groove has a base with a curved cross-sectional profile, and a plurality of lobes alternatingly formed between the plurality of grooves, wherein each lobe has a cross-sectional profile comprising an apex and opposite side surfaces sloping downwardly a distance from the apex to the base of adjacent grooves.

公开(公告)号：US20220112770A1

公开(公告)日：2022-04-14

申请号：US17310625

申请日：2020-02-14

Applicant: Schlumberger Technology Corporation

Inventor： Andrew Mueller ,  Dennis Patrick Chesnutt ,  Ke Chen ,  Xiaoge Gan ,  Venkatesh Karuppiah

IPC: E21B7/06

Abstract: A downhole tool has a directional pad that contacts a wellbore wall at a pad contact location and a drill bit with at least one active cutting element that contacts the wellbore wall at a cutting element contact location. A contact distance between the pad contact location and the cutting element contact location being 3 in. (7.6 cm) or less.

公开(公告)号：US20190078398A1

公开(公告)日：2019-03-14

申请号：US16191110

申请日：2018-11-14

Applicant: Schlumberger Technology Corporation

Inventor： Xiaoge Gan ,  Ke Chen ,  Venkatesh Karuppiah ,  Anthony L. Collins ,  Ke Ken Li ,  Fei Song ,  Rakesh Singh ,  Michael Hui Du ,  Keith Moriarty

IPC: E21B17/042 ,  E21B10/42

Abstract: A thread structure in accordance to one or more embodiments includes a thread extending helically along a portion of a bit body in spaced thread turns, the thread having a crest extending between a first flank and a second flank and a root extending between the thread turns, the root having a curvature defined by a portion of an ellipse tangentially adjoining the first and second flank at respective flank transition points, the ellipse having a major axis extending parallel to the axis and a minor axis extending perpendicular to the major axis and through a root bottom.