High pressure optical cell for a downhole optical fluid analyzer
First Claim
Patent Images
1. An apparatus for analyzing subterranean formation fluids, comprising:
- a downhole tool;
a fluid analysis module disposed in the downhole tool;
a formation fluid flow path through the fluid analysis module;
first and second cavities disposed in the fluid analysis module;
first and second windows disposed in the first and second cavities of the fluid analysis module, respectively, the first and second windows each comprising a polished external sealing surface.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus for analyzing subterranean formation fluids includes a downhole tool, a fluid analysis module disposed in the downhole tool, a formation fluid flow path through the fluid analysis module, first and second cavities disposed in the fluid analysis module, and first and second windows disposed in first and second cavities of the fluid analysis module, respectively. The first and second windows each comprise a polished external sealing surface enabling high pressure fluid isolation.
32 Citations
27 Claims
-
1. An apparatus for analyzing subterranean formation fluids, comprising:
-
a downhole tool;
a fluid analysis module disposed in the downhole tool;
a formation fluid flow path through the fluid analysis module;
first and second cavities disposed in the fluid analysis module;
first and second windows disposed in the first and second cavities of the fluid analysis module, respectively, the first and second windows each comprising a polished external sealing surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. An apparatus for analyzing subterranean formation fluids, comprising:
-
a downhole tool;
a fluid analysis module disposed in the downhole tool, the fluid analysis module comprising an optical cell spectrometer and a gas detection cell;
wherein the optical cell spectrometer comprises;
a formation fluid flow path through the fluid analysis module;
first and second cavities disposed in the fluid analysis module;
first and second windows disposed in first and second cavities of the fluid analysis module, respectively, the first and second windows each comprising a polished external sealing surface;
wherein the gas detection cell comprises;
a third window disposed in a third cavity spaced axially from the first and second cavities;
the third window comprising an angular prism for gas detection, the third window comprising a polished external sealing surface. - View Dependent Claims (22, 23, 24)
-
-
25. A method of making an apparatus for analyzing subterranean formation fluids, comprising:
-
providing a downhole tool;
providing a fluid analysis module with a plurality of window cavities;
polishing a plurality of windows to a specular polish;
inserting the plurality of windows into the window cavities;
sealing the plurality of windows in the window cavities. - View Dependent Claims (26, 27)
-
Specification