Side pocket mandrel

Details Side pocket mandrel Side pocket mandrel

E - Fixed Constructions

21

B

166/42

E21B 23/02 (2006.01) E21B 23/03 (2006.01)

Patent

CA 1206090

SIDE POCKET MANDREL Abstract of the Disclosure A high-strength side pocket mandrel for high pressure service having a full-opening bore throughout its length but having a bore of keyhole shape above its receptacle bore to provide minimal but ample space for operation of a kickover tool for installing devices in the receptacle bore and provid- ing strengthened walls for withstanding greater forces which would tend to burst or collapse the mandrel. Background of the Invention Field of the Invention This invention relates to gas lift apparatus for wells and more particularly to side pocket mandrels for use in gas lift wells. Description of the Prior Art Side pocket mandrels have long been used in wells for many years with good results, but as gas lift techniques are practiced at greater and greater depths in wells, demands for stronger side pocket mandrels increase. Side pocket mandrels are necessarily somewhat bulbous in structure and have appreciable lateral area subjected to internal and external pressures which tend to rupture or collapse them, and they are not well suited to resist such forces acting upon them. Further, many mandrels are used in wells equipped with dual tubing strings and, therefore, are flattened to a generally oval cross-section to permit the passage of one mandrel past another in casing of reasonable size so that either such tubing string can be pulled from the well without disturbing the other tubing string. Flattened or oval

418913

Affiliated with

Also associated with

Rating

Side pocket mandrel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Side pocket mandrel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Side pocket mandrel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1307938