公开(公告)号：US09791389B2

公开(公告)日：2017-10-17

申请号：US15274256

申请日：2016-09-23

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Rolf Rustad ,  Paal Bratland ,  Jean-Francois Noel

IPC: G01N23/12 ,  G01N23/083 ,  H01P1/08 ,  G01F1/74

CPC classification number: G01N23/12 ,  G01F1/74 ,  G01N23/083 ,  G01N2223/04 ,  G01N2223/317 ,  H01P1/08 ,  Y10T29/49865

Abstract: A gamma densitometer window is provided along with a method of fabrication thereof. The window comprises a plate of non-metallic, preferably gamma transparent, material having a first face and a second face opposing one another and having an outer edge defined therebetween. The window further comprises a metallic frame member fitted around the outer edge of the plate and adapted to pre-load the plate with a compressive stress that is sufficiently high such that the sum of the compressive stress, tensile stress and shear stress components generated in the plate under high-pressure conditions is always compressive. The method of fabrication shrink fitting the metallic frame member around the outer edge of the plate at a shrink-fit temperature such that the metallic frame member applies a compressive stress to the plate at any temperature below the shrink-fit temperature.

公开(公告)号：US20170010225A1

公开(公告)日：2017-01-12

申请号：US15274256

申请日：2016-09-23

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Rolf Rustad ,  Paal Bratland ,  Jean-Francois Noel

IPC: G01N23/12 ,  G01N23/083 ,  G01F1/74

CPC classification number: G01N23/12 ,  G01F1/74 ,  G01N23/083 ,  G01N2223/04 ,  G01N2223/317 ,  H01P1/08 ,  Y10T29/49865

Abstract: A gamma densitometer window is provided along with a method of fabrication thereof. The window comprises a plate of non-metallic, preferably gamma transparent, material having a first face and a second face opposing one another and having an outer edge defined therebetween. The window further comprises a metallic frame member fitted around the outer edge of the plate and adapted to pre-load the plate with a compressive stress that is sufficiently high such that the sum of the compressive stress, tensile stress and shear stress components generated in the plate under high-pressure conditions is always compressive. The method of fabrication shrink fitting the metallic frame member around the outer edge of the plate at a shrink-fit temperature such that the metallic frame member applies a compressive stress to the plate at any temperature below the shrink-fit temperature.

Abstract translation: 提供伽马密度计窗口及其制造方法。 窗口包括非金属，优选γ透明材料的板，其具有第一面和彼此相对的第二面，并且在其间限定有外边缘。 窗户还包括金属框架构件，该金属框架构件围绕板的外边缘安装并且适于以足够高的压缩应力预加载板，使得压缩应力，拉伸应力和剪切应力分量之和在 板材在高压条件下总是压缩的。 制造方法以收缩配合温度使金属框架构件围绕板的外边缘收缩，使得金属框架构件在低于收缩配合温度的任何温度下向板施加压缩应力。