Wire line core barrel

Details Wire line core barrel Wire line core barrel

E - Fixed Constructions

21

B

255/4, 166/8

E21B 49/02 (2006.01) E21B 10/66 (2006.01) E21B 25/04 (2006.01)

Patent

CA 1264316

-1- WIRE LINE CORE BARREL ABSTRACT OF THE DISCLOSURE A core sampling device comprising a drill bit assembly, a drive shoe arranged to house the drill bit, a core sampling tube; and a retraction tube. The drill bit assembly includes a bit housing, which is drivingly engaged by the drive shoe, and a series of drill segments which are pivotally attached to the housing to be capable of pivoting between a drilling position and a retracted position. The segments are maintained in the drilling position by the core sampling tube when this is in a forward position, but are allowed to adopt the retracted position when the sampling tube is withdrawn. The core sampling tube engages the drill bit assembly via the retraction tube whereby continued withdrawal of the core sampling tube causes withdrawal of the drill bit assembly from within the drive shoe.

513162

Affiliated with

Also associated with

Rating

Wire line 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 Wire line core barrel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wire line core barrel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1235188