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Core Catcher Procedure

Removing the core catcher material is generally done by a designated technician. Every core recovered has a core catcher at the bottom of the core barrel. The core catcher is removed on the rig floor and passed to the designated technician. The technician must extrude all core material from the core catcher and placed in a core liner (guidelines and rules listed below). That 'Section' of core is called the CC (core catcher).
Below are a series of steps to help guide you through the Core Catcher (CC) procedure.

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Fig. 3: Core catcher material in Core Liner.

Arbor Press

If the Core Catcher material is difficult to manually push out from the core catcher use the Arbor Press (see Figures 4 and 5). There are two different jigs that can be used to assist with the pushing. One for APC (Figure 6) and one for XCB (one for lower bit; figures 7). Lubricate the moving parts of the arbor press with Lubriplate, or a mixture of Lubriplate and Marvel Mystery Oil.

Fig. 4: Arbor Press.
 


Fig. 5: Metal disc for pushing on core material.
 

Fig. 6: APC Jig.



Fig. 7: XCB bit jig.

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