Invention Grant
US08726726B2 Sensor unit for a logging tool and a logging tool with at least two sensor elements
有权
用于测井工具的传感器单元和具有至少两个传感器元件的测井工具
- Patent Title: Sensor unit for a logging tool and a logging tool with at least two sensor elements
- Patent Title (中): 用于测井工具的传感器单元和具有至少两个传感器元件的测井工具
-
Application No.: US13380607Application Date: 2010-06-24
-
Publication No.: US08726726B2Publication Date: 2014-05-20
- Inventor: Truls Fallet , Per Schjølberg-Henriksen
- Applicant: Truls Fallet , Per Schjølberg-Henriksen
- Applicant Address: NO Trondheim
- Assignee: Sinvent AS
- Current Assignee: Sinvent AS
- Current Assignee Address: NO Trondheim
- Agency: Wendroth, Lind & Ponack, L.L.P.
- Priority: NO20092429 20090625
- International Application: PCT/NO2010/000244 WO 20100624
- International Announcement: WO2010/151143 WO 20101229
- Main IPC: E21B47/06
- IPC: E21B47/06 ; G01L11/00
Abstract:
The present invention concerns a dynamic pressure sensor unit (5A) for a logging tool for hydrocarbon wells with a piezoelectric element (5) in a sensor sleeve (3). The piezoelectric element (5) is a tubular element with an inner and an outer diameter. The sensor sleeve (3) has an inner cylindrical area with an inner diameter greater than the outer diameter of the tubular piezoelectric element (5). The piezoelectric element is situated in the inner cylindrical area of the sensor sleeve (3). A gap (12) with a gap thickness is formed between the inner cylindrical area of the sensor sleeve (3), defining an annular volume. The gap is filled with a noise transmitting liquid.
Public/Granted literature
- US20120144913A1 SENSOR UNIT FOR A LOGGING TOOL AND A LOGGING TOOL WITH AT LEAST TWO SENSOR ELEMENTS Public/Granted day:2012-06-14
Information query
