Patent ID: 9650891
Date: 2017-05-16
CPC Classifications: E21B

Claim:
1. A method of preserving hydrocarbon samples obtained from an underground formation, comprising: delivering an apparatus comprising a coring tool to the formation; obtaining a first core sample from the formation using the coring tool, the first core sample including a hydrocarbon therein; capturing the first core sample in a first container in the apparatus; obtaining a second core sample from the formation using the coring tool, the second core sample including the hydrocarbon therein; capturing the second core sample in a second container in the apparatus; sealing the first container downhole with the hydrocarbon contained therein, wherein sealing the first container includes abutting the second container to an open end of the first container downhole; storing the sealed first container in the apparatus; and retrieving the apparatus with the sealed first container to the surface.