Patent ID: 7124841
Filing Date: 2006-10-24
Classification: E21B

Abstract:
1. A crustal core sampler for coring crustal core sample by drilling crust using a fluid for drilling work, said crustal core sampler comprising: a cylindrical drill pipe comprising at a lower end thereof a drill bit having at least one ejection opening for electing the fluid for drilling work; and an inner barrel arranged in the drill pipe; wherein the inner barrel comprises: wherein the inner barrel is arranged such that the opening for inserting the columnar crustal core portion is positioned above the ejection opening of the drill bit for the fluid for drilling work; wherein the columnar crustal core portion formed by the drilling is coated with the flowable coating material ejected from the flow-able coating material-ejecting openings while being positioned in the interior of the inner barrel body while being relatively raised in the internal space of the inner barrel body; wherein the core elevator comprises: wherein a temporary linked state is achieved between the space in the central through-hole of the core elevator body and the flowable coating material-ejecting openings at a beginning of upward movement of the core elevator body within the inner barrel body.