E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/61
E21B 23/00 (2006.01) E21B 23/02 (2006.01) E21B 34/10 (2006.01) E21B 34/14 (2006.01) E21B 34/00 (2006.01)
Patent
CA 1056723
ABSTRACT OF THE DISCLOSURE A well system for selectively locking well tools along a flow conductor in a well bore and a tool string for use in the flow conductor including a locking mandrel, a sleeve shifting device, and a well safety valve. The selective locking system has a landing and locking recess profile including both upwardly and downwardly facing stop shoulders. One form of the locking system is in a sliding sleeve valve including a cam release shoulder to free a selector and locking key when the sleeve valve is moved between spaced longitudinal locations. Another form of the locking system may be along a landing nipple and require that the well tool locked therein be disabled for release of the selector and locking tools. The sleeve shifting device has means for opening and closing the sliding sleeve valve including keys having upwardly and downwardly facing stop shoulders and recess profiles which are compatible with the landing and locking recess profile of the sleeve valve or of a landing nipple. The sleeve shifting device may be used also as a locking mandrel. Selectivity is provided by variation in the landing and locking profiles and the key profiles.
259079
Gazda Imre I.
LandOfFree
Well system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Well system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well system will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-622665