System for monitoring coring operations
AssigneeCoretrack, Ltd.
InventorDamian J. Stockton
Life of this patent
Estimating the term…
Abstract
A system (10) for monitoring coring operations including a core sample marker (24) to rest in use on the top of a drilled core sample (14) within a core barrel (16). A cable (26) is connected at a first thereof to the core sample marker (24) and a cable tensioner (30) is provided above the core sample marker (24) to apply tension to the cable (26). A cable movement detector (32) is provided such that as the drilled sample (14) moves up the core barrel (16), the cable tensioner (30) draws the cable (26) up the core barrel (16) and the cable movement detector (32) determines the length of cable (26) drawn up the core barrel (16), thereby providing information regarding the distance traveled by the core sample marker (24).
Claims9
A system for monitoring coring operations comprising:
- a core sample marker to rest in use on a top of a drilled core sample within a core barrel;
- a cable connected at a first end thereof to the core sample marker;
- a cable tensioner located above the core sample marker to apply tension to the cable;
- and
- a cable movement detector;
- wherein as the drilled core sample moves upwardly relative to the core barrel, the cable tensioner draws the cable upwardly relative to the core barrel and the cable movement detector determines the length of cable drawn up, thereby providing information regarding the distance traveled by the core sample marker.
A system for monitoring coring operations in accordance with any one of the preceding claims, wherein the cable tensioner is mounted below a flow diverter assembly provided for diverting drilling fluid from within an inner barrel to an outer barrel at the start of coring operations.
Dependencies are inferred from the claim text.