Side wall sampling device

Claim 1

A SAMPLING DEVICE FOR USE WITH CONVENTIONAL WELL DRILLING EQUIPMENT, INCLUDING A KELLY, A ROTARY TABLE AND A DRILL BIT, COMPRISING A WHEELED SUPPORT ADAPTED TO BE MOVED INTO AND OUT OF ALIGNED OPERATIVE POSITION WITH RESPECT TO A DRILL COLUMN, SAID DRILL COLUMN HAVING A COAXIAL TUBE SUPPORTED THEREIN, SAID TUBE COMPRISING A PLURALITY OF INTERFITTED SECTIONS FORMING A CABLE HOUSING UNIT, A CABLE DRUM ASSEMBLY ROTATABLY MOUNTED ON THE WHEELED SUPPORT, SAID CABLE DRUM ASSEMBLY INCLUDING A RELATIVELY FLEXIBLE CABLE, A DRILL COLUMN CABLE DIRECTOR UNIT CARRIED BY THE WHEELED SUPPORT FOR INTRODUCING THE CABLE INTO THE DRILL COLUMN, A CORING TOOL ASSEMBLY DETACHABLY SECURED TO THE END PORTION OF THE CABLE INSERTABLE IN THE DRILL COLUMN, A CORING TOOL SUB CONNECTED INTO THE DRILL COLUMN, A SOURCE OF POWER FOR ACTUATING THE CABLE DRUM ASSEMBLY AND THE CABLE DIRECTOR UNIT FOR FEEDING THE CABLE INTO THE DRILL COLUMN AND WITHDRAWING THE SAME FROM THE COLUMN.