公开(公告)号：US20160320515A1

公开(公告)日：2016-11-03

申请号：US14699009

申请日：2015-04-29

Applicant: Schlumberger Technology Corporation

Inventor： Brian O. Clark ,  Jacques Orban ,  Jonathan D. Marshall ,  Scott R. Woolston ,  Daniel Hendricks ,  Neil Cannon

IPC: G01V3/20

CPC classification number: G01V3/20

Abstract: Devices and methods for well logging using a wear-resistant electrode are provided. A downhole device may include a drill collar and a first electrode mounted on the drill collar. Further, the first electrode may include a wear-resistant face. The first electrode may be movably coupled within the drill collar, and the first electrode may be configured to extend and retract into a wellbore to maintain contact with a wall of the wellbore. Furthermore, the first electrode may be configured to measure impedance of a geological formation.

Abstract translation: 提供了使用耐磨电极进行测井的装置和方法。 井下装置可以包括钻铤和安装在钻铤上的第一电极。 此外，第一电极可以包括耐磨面。 第一电极可以可移动地联接在钻铤内，并且第一电极可以被配置为延伸和缩回到井筒中以保持与井眼的壁接触。 此外，第一电极可以被配置为测量地质构造的阻抗。

公开(公告)号：US09989665B2

公开(公告)日：2018-06-05

申请号：US14699009

申请日：2015-04-29

Applicant: Schlumberger Technology Corporation

Inventor： Brian O. Clark ,  Jacques Orban ,  Jonathan D. Marshall ,  Scott R. Woolston ,  Daniel Hendricks ,  Neil Cannon

IPC: G01V3/20

CPC classification number: G01V3/20

Abstract: Devices and methods for well logging using a wear-resistant electrode are provided. A downhole device may include a drill collar and a first electrode mounted on the drill collar. Further, the first electrode may include a wear-resistant face. The first electrode may be movably coupled within the drill collar, and the first electrode may be configured to extend and retract into a wellbore to maintain contact with a wall of the wellbore. Furthermore, the first electrode may be configured to measure impedance of a geological formation.

公开(公告)号：US09880311B2

公开(公告)日：2018-01-30

申请号：US14699053

申请日：2015-04-29

Applicant: Schlumberger Technology Corporation

Inventor： Brian O. Clark ,  Jacques Orban ,  Jonathan D. Marshall ,  Scott R. Woolston ,  Daniel Hendricks ,  Neil Cannon

IPC: G01V3/24 ,  G01R3/00

CPC classification number: G01V3/24 ,  G01R3/00

Abstract: Devices and methods for well logging using a wear resistant electrode are provided. A downhole device may include a drill bit, a gauge pad mounted on the drill bit, and a first electrode mounted in the gauge pad. An insulating polycrystalline diamond (PCD) material may surround at least a portion of the first electrode. Additionally, the first electrode may include an electrically conductive wear resistant contact point that maintains constant contact with a wall of a wellbore. Additionally, the first electrode may measure an impedance of a geological formation during a drilling operation.

公开(公告)号：US20160320516A1

公开(公告)日：2016-11-03

申请号：US14699053

申请日：2015-04-29

Applicant: Schlumberger Technology Corporation

Inventor： Brian O. Clark ,  Jacques Orban ,  Jonathan D. Marshall ,  Scott R. Woolston ,  Daniel Hendricks ,  Neil Cannon

IPC: G01V3/20 ,  G01R3/00

CPC classification number: G01V3/24 ,  G01R3/00

Abstract: Devices and methods for well logging using a wear resistant electrode are provided. A downhole device may include a drill bit, a gauge pad mounted on the drill bit, and a first electrode mounted in the gauge pad. An insulating polycrystalline diamond (PCD) material may surround at least a portion of the first electrode. Additionally, the first electrode may include an electrically conductive wear resistant contact point that maintains constant contact with a wall of a wellbore. Additionally, the first electrode may measure an impedance of a geological formation during a drilling operation.

Abstract translation: 提供了使用耐磨电极进行测井的装置和方法。 井下装置可以包括钻头，安装在钻头上的量规垫和安装在量板中的第一电极。 绝缘多晶金刚石（PCD）材料可围绕第一电极的至少一部分。 另外，第一电极可以包括与井筒的壁保持恒定接触的导电耐磨接触点。 此外，第一电极可以在钻井操作期间测量地质构造的阻抗。