E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 47/09 (2006.01) E21B 34/14 (2006.01)
Patent
CA 2463560
Methods and systems for optical endpoint detection of a sliding sleeve valve are disclosed. The system comprises fiber optic cable based sensors (e.g., fiber Bragg gratings or fiber optic coils) positioned in a recess within the valve's housing and affixed proximate to the ends of the cavity in which the sleeve travels. When the sleeve reaches the ends of the cavity, it imparts a stress onto an area of the housing, which preferably constitutes a protrusion within the cavity, which in turn stresses the sensor and changes its reflection profile. This change in reflection profile indicates that the sleeve has traveled to an end point inside the valve, and accordingly that the valve is fully open or fully closed.
Mayeu Christopher W.
Wilde Richard M.
Deeth Williams Wall Llp
Weatherford/lamb Inc.
LandOfFree
Methods and systems for optical endpoint detection of a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and systems for optical endpoint detection of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and systems for optical endpoint detection of a... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1512462