公开(公告)号：US08975574B2

公开(公告)日：2015-03-10

申请号：US13901242

申请日：2013-05-23

Applicant: Schlumberger Technology Corporation

Inventor： Cornelis Huiszoon ,  Libai Xu ,  Christian Stoller ,  Robert Little ,  Peter Wraight

IPC: G01V5/04 ,  G01V5/08 ,  G01V13/00

CPC classification number: G01V5/08 ,  G01V5/06 ,  G01V13/00 ,  Y10T29/49826

Abstract: A well-logging tool may be positioned within a borehole of a subterranean formation. The well-logging tool may include a housing having an interior defining a dual-detector receiving chamber extending longitudinally, and having first and second portions, and a first azimuthal radiation detector carried by the first portion of the dual-detector receiving chamber. The first azimuthal radiation detector may include a first gamma-ray detector and a first photodetector associated with the first gamma-ray detector. The well-logging tool may include a second spectral radiation detector carried by the second portion of the dual-detector receiving chamber. The second spectral radiation detector may include a second gamma-ray detector and a second photodetector associated with the second gamma-ray detector.

Abstract translation: 测井工具可以定位在地层的钻孔内。 测井工具可以包括壳体，其具有限定纵向延伸并且具有第一和第二部分的双检测器接收室的内部，以及由双检测器接收室的第一部分承载的第一方位辐射检测器。 第一方位角辐射检测器可以包括第一伽马射线检测器和与第一伽马射线检测器相关联的第一光电检测器。 测井工具可以包括由双检测器接收室的第二部分承载的第二光谱辐射检测器。 第二光谱辐射检测器可以包括与第二伽马射线检测器相关联的第二伽马射线检测器和第二光电检测器。

公开(公告)号：US20220364559A1

公开(公告)日：2022-11-17

申请号：US17595287

申请日：2020-05-14

Applicant: Schlumberger Technology Corporation

Inventor： Anton Kolyshkin ,  Maxim Pushkarev ,  Samba Ba ,  Li Guo ,  Robert Little ,  Geoffrey Charles Downton

IPC: F04C2/107 ,  F04C13/00

Abstract: A mud motor includes a rotor and a stator. Drilling fluid received by cavities of the mud motor drives the rotor to rotate within the stator. The rotor includes one or more rotor lobes extending helically and defining a rotor pitch. The stator includes two or more stator lobes extending helically and defining a stator pitch. The rotor and the stator together define a tapered profile of the mud motor that varies proceeding from a top end of the mud motor to a bottom end of the mud motor. At least one of the rotor pitch or the stator pitch vary as proceeding from the top end of the mud motor to the bottom end of the mud motor.

公开(公告)号：US12152587B2

公开(公告)日：2024-11-26

申请号：US17595287

申请日：2020-05-14

Applicant: Schlumberger Technology Corporation

Inventor： Anton Kolyshkin ,  Maxim Pushkarev ,  Samba Ba ,  Li Guo ,  Robert Little ,  Geoffrey Charles Downton

IPC: F04C2/107 ,  F04C13/00 ,  F04C18/107

Abstract: A mud motor includes a rotor and a stator. Drilling fluid received by cavities of the mud motor drives the rotor to rotate within the stator. The rotor includes one or more rotor lobes extending helically and defining a rotor pitch. The stator includes two or more stator lobes extending helically and defining a stator pitch. The rotor and the stator together define a tapered profile of the mud motor that varies proceeding from a top end of the mud motor to a bottom end of the mud motor. At least one of the rotor pitch or the stator pitch vary as proceeding from the top end of the mud motor to the bottom end of the mud motor.