Patent ID: 9303468
Filing Date: 2016-04-05
CPC Classification: E21B

Claim Text:
1. A rack unit for storing one or more tubulars through a hole offset from a wellbore centerline on a drilling deck, the rack unit comprising: a tubular housing having a longitudinal axis, an upper end, and a lower end opposite the upper end; a first rack disposed within the housing, wherein the first rack is moveably coupled to the housing; a second rack disposed within the housing, wherein the second rack is moveably coupled to the housing; wherein the first rack is configured to move within the housing between a transfer position and a first storage position laterally offset from the transfer position; wherein the second rack is configured to move within the housing independent of the first rack between the transfer position and a second storage position laterally offset from the transfer position, and wherein the second storage position is laterally offset from the first storage position; wherein each tubular is configured to be loaded into the tubular housing through the transfer position and unloaded from the tubular housing through the transfer position.