Adjustable bearing section core barrel

Details Adjustable bearing section core barrel Adjustable bearing section core barrel

E - Fixed Constructions

21

B

255/3

E21B 25/02 (2006.01) E21B 25/00 (2006.01)

Patent

CA 1240981

AN ADJUSTABLE BEARING SECTION CORE BARREL ABSTRACT OF THE DISCLOSURE The longitudinal position of an inner barrel within a core barrel assembly can be adjusted and locked in the field without necessitating the disassembly of the cartridge cap assembly within the core barrel tool, and therefore without entailing loss of expensive rig time. The inner tube is coupled through a swivel assembly to a cartridge cap. The cartridge cap is threadedly coupled to the coring tool, and in particular to the outer tube. Thus, the cartridge cap is arranged and configured to be rotated, and thus longitudinally adjusted with respect to the outer tube. An upper portion of the cartridge cap is provided with a plurality of radially expanding fingers. A jam nut is disposed within a cylindrical array formed by the fingers, and is threadably engaged with the inside surface of the fingers. The jam nut has a frustoconical shape, and thus as the jam nut is advanced longitudinally with respect to the fingers, the fingers are urged outwardly, ultimately in a tight and locking contact with an interior surface of the coring tool. A hollow cylindrical wrench is disposed through the end of the core barrel to engage the cartridge cap and rotate it to the desired longitudinal position. A jam nut wrench is disposed through the hollow cartridge cap wrench, and when the inner tube has been appropriately adjusted is used to advance the jam nut downwardly in the fingers to expand the fingers and thus lock the longitudinal position of the cartridge cap.

489525

Affiliated with

Also associated with

Rating

Adjustable bearing section core barrel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adjustable bearing section core barrel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable bearing section core barrel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1235960